diff options
Diffstat (limited to 'arch/sparc64')
49 files changed, 1353 insertions, 1906 deletions
diff --git a/arch/sparc64/Kconfig b/arch/sparc64/Kconfig index d78bc13ebbb9..1e9d8638a28a 100644 --- a/arch/sparc64/Kconfig +++ b/arch/sparc64/Kconfig @@ -5,6 +5,16 @@ mainmenu "Linux/UltraSPARC Kernel Configuration" +config SPARC64 + bool + default y + help + SPARC is a family of RISC microprocessors designed and marketed by + Sun Microsystems, incorporated. This port covers the newer 64-bit + UltraSPARC. The UltraLinux project maintains both the SPARC32 and + SPARC64 ports; its web page is available at + <http://www.ultralinux.org/>. + config 64BIT def_bool y @@ -16,6 +26,10 @@ config TIME_INTERPOLATION bool default y +config ARCH_MAY_HAVE_PC_FDC + bool + default y + choice prompt "Kernel page size" default SPARC64_PAGE_SIZE_8KB @@ -43,6 +57,25 @@ config SPARC64_PAGE_SIZE_4MB endchoice +config SECCOMP + bool "Enable seccomp to safely compute untrusted bytecode" + depends on PROC_FS + default y + help + This kernel feature is useful for number crunching applications + that may need to compute untrusted bytecode during their + execution. By using pipes or other transports made available to + the process as file descriptors supporting the read/write + syscalls, it's possible to isolate those applications in + their own address space using seccomp. Once seccomp is + enabled via /proc/<pid>/seccomp, it cannot be disabled + and the task is only allowed to execute a few safe syscalls + defined by each seccomp mode. + + If unsure, say Y. Only embedded should say N here. + +source kernel/Kconfig.hz + source "init/Kconfig" config SYSVIPC_COMPAT @@ -52,75 +85,6 @@ config SYSVIPC_COMPAT menu "General machine setup" -config BBC_I2C - tristate "UltraSPARC-III bootbus i2c controller driver" - depends on PCI - help - The BBC devices on the UltraSPARC III have two I2C controllers. The - first I2C controller connects mainly to configuration PROMs (NVRAM, - CPU configuration, DIMM types, etc.). The second I2C controller - connects to environmental control devices such as fans and - temperature sensors. The second controller also connects to the - smartcard reader, if present. Say Y to enable support for these. - -config VT - bool "Virtual terminal" if EMBEDDED - select INPUT - default y - ---help--- - If you say Y here, you will get support for terminal devices with - display and keyboard devices. These are called "virtual" because you - can run several virtual terminals (also called virtual consoles) on - one physical terminal. This is rather useful, for example one - virtual terminal can collect system messages and warnings, another - one can be used for a text-mode user session, and a third could run - an X session, all in parallel. Switching between virtual terminals - is done with certain key combinations, usually Alt-<function key>. - - The setterm command ("man setterm") can be used to change the - properties (such as colors or beeping) of a virtual terminal. The - man page console_codes(4) ("man console_codes") contains the special - character sequences that can be used to change those properties - directly. The fonts used on virtual terminals can be changed with - the setfont ("man setfont") command and the key bindings are defined - with the loadkeys ("man loadkeys") command. - - You need at least one virtual terminal device in order to make use - of your keyboard and monitor. Therefore, only people configuring an - embedded system would want to say N here in order to save some - memory; the only way to log into such a system is then via a serial - or network connection. - - If unsure, say Y, or else you won't be able to do much with your new - shiny Linux system :-) - -config VT_CONSOLE - bool "Support for console on virtual terminal" if EMBEDDED - depends on VT - default y - ---help--- - The system console is the device which receives all kernel messages - and warnings and which allows logins in single user mode. If you - answer Y here, a virtual terminal (the device used to interact with - a physical terminal) can be used as system console. This is the most - common mode of operations, so you should say Y here unless you want - the kernel messages be output only to a serial port (in which case - you should say Y to "Console on serial port", below). - - If you do say Y here, by default the currently visible virtual - terminal (/dev/tty0) will be used as system console. You can change - that with a kernel command line option such as "console=tty3" which - would use the third virtual terminal as system console. (Try "man - bootparam" or see the documentation of your boot loader (lilo or - loadlin) about how to pass options to the kernel at boot time.) - - If unsure, say Y. - -config HW_CONSOLE - bool - depends on VT - default y - config SMP bool "Symmetric multi-processing support" ---help--- @@ -186,17 +150,6 @@ config US2E_FREQ If in doubt, say N. -# Identify this as a Sparc64 build -config SPARC64 - bool - default y - help - SPARC is a family of RISC microprocessors designed and marketed by - Sun Microsystems, incorporated. This port covers the newer 64-bit - UltraSPARC. The UltraLinux project maintains both the SPARC32 and - SPARC64 ports; its web page is available at - <http://www.ultralinux.org/>. - # Global things across all Sun machines. config RWSEM_GENERIC_SPINLOCK bool @@ -227,6 +180,10 @@ config HUGETLB_PAGE_SIZE_64K endchoice +endmenu + +source "mm/Kconfig" + config GENERIC_ISA_DMA bool default y @@ -325,33 +282,6 @@ config PCI_DOMAINS bool default PCI -config RTC - tristate - depends on PCI - default y - ---help--- - If you say Y here and create a character special file /dev/rtc with - major number 10 and minor number 135 using mknod ("man mknod"), you - will get access to the real time clock (or hardware clock) built - into your computer. - - Every PC has such a clock built in. It can be used to generate - signals from as low as 1Hz up to 8192Hz, and can also be used - as a 24 hour alarm. It reports status information via the file - /proc/driver/rtc and its behaviour is set by various ioctls on - /dev/rtc. - - If you run Linux on a multiprocessor machine and said Y to - "Symmetric Multi Processing" above, you should say Y here to read - and set the RTC in an SMP compatible fashion. - - If you think you have a use for such a device (such as periodic data - sampling), then say Y here, and read <file:Documentation/rtc.txt> - for details. - - To compile this driver as a module, choose M here: the - module will be called rtc. - source "drivers/pci/Kconfig" config SUN_OPENPROMFS @@ -395,6 +325,8 @@ config BINFMT_AOUT32 If you want to run SunOS binaries (see SunOS binary emulation below) or other a.out binaries, say Y. If unsure, say N. +menu "Executable file formats" + source "fs/Kconfig.binfmt" config SUNOS_EMUL @@ -417,74 +349,7 @@ config SOLARIS_EMUL To compile this code as a module, choose M here: the module will be called solaris. -source "drivers/parport/Kconfig" - -config PRINTER - tristate "Parallel printer support" - depends on PARPORT - ---help--- - If you intend to attach a printer to the parallel port of your Linux - box (as opposed to using a serial printer; if the connector at the - printer has 9 or 25 holes ["female"], then it's serial), say Y. - Also read the Printing-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - It is possible to share one parallel port among several devices - (e.g. printer and ZIP drive) and it is safe to compile the - corresponding drivers into the kernel. - To compile this driver as a module, choose M here and read - <file:Documentation/parport.txt>. The module will be called lp. - - If you have several parallel ports, you can specify which ports to - use with the "lp" kernel command line option. (Try "man bootparam" - or see the documentation of your boot loader (lilo or loadlin) about - how to pass options to the kernel at boot time.) The syntax of the - "lp" command line option can be found in <file:drivers/char/lp.c>. - - If you have more than 8 printers, you need to increase the LP_NO - macro in lp.c and the PARPORT_MAX macro in parport.h. - -config PPDEV - tristate "Support for user-space parallel port device drivers" - depends on PARPORT - ---help--- - Saying Y to this adds support for /dev/parport device nodes. This - is needed for programs that want portable access to the parallel - port, for instance deviceid (which displays Plug-and-Play device - IDs). - - This is the parallel port equivalent of SCSI generic support (sg). - It is safe to say N to this -- it is not needed for normal printing - or parallel port CD-ROM/disk support. - - To compile this driver as a module, choose M here: the - module will be called ppdev. - - If unsure, say N. - -config ENVCTRL - tristate "SUNW, envctrl support" - depends on PCI - help - Kernel support for temperature and fan monitoring on Sun SME - machines. - - To compile this driver as a module, choose M here: the - module will be called envctrl. - -config DISPLAY7SEG - tristate "7-Segment Display support" - depends on PCI - ---help--- - This is the driver for the 7-segment display and LED present on - Sun Microsystems CompactPCI models CP1400 and CP1500. - - To compile this driver as a module, choose M here: the - module will be called display7seg. - - If you do not have a CompactPCI model CP1400 or CP1500, or - another UltraSPARC-IIi-cEngine boardset with a 7-segment display, - you should say N to this option. +endmenu config CMDLINE_BOOL bool "Default bootloader kernel arguments" @@ -502,144 +367,16 @@ config CMDLINE NOTE: This option WILL override the PROM bootargs setting! -source "mm/Kconfig" - -endmenu - -source "drivers/base/Kconfig" - -source "drivers/video/Kconfig" +source "net/Kconfig" -source "drivers/serial/Kconfig" +source "drivers/Kconfig" source "drivers/sbus/char/Kconfig" -source "drivers/mtd/Kconfig" - -source "drivers/block/Kconfig" - -source "drivers/ide/Kconfig" - -source "drivers/scsi/Kconfig" - source "drivers/fc4/Kconfig" -source "drivers/md/Kconfig" - -if PCI -source "drivers/message/fusion/Kconfig" -endif - -source "drivers/ieee1394/Kconfig" - -source "net/Kconfig" - -source "drivers/isdn/Kconfig" - -source "drivers/telephony/Kconfig" - -# This one must be before the filesystem configs. -DaveM - -menu "Unix98 PTY support" - -config UNIX98_PTYS - bool "Unix98 PTY support" - ---help--- - A pseudo terminal (PTY) is a software device consisting of two - halves: a master and a slave. The slave device behaves identical to - a physical terminal; the master device is used by a process to - read data from and write data to the slave, thereby emulating a - terminal. Typical programs for the master side are telnet servers - and xterms. - - Linux has traditionally used the BSD-like names /dev/ptyxx for - masters and /dev/ttyxx for slaves of pseudo terminals. This scheme - has a number of problems. The GNU C library glibc 2.1 and later, - however, supports the Unix98 naming standard: in order to acquire a - pseudo terminal, a process opens /dev/ptmx; the number of the pseudo - terminal is then made available to the process and the pseudo - terminal slave can be accessed as /dev/pts/<number>. What was - traditionally /dev/ttyp2 will then be /dev/pts/2, for example. - - The entries in /dev/pts/ are created on the fly by a virtual - file system; therefore, if you say Y here you should say Y to - "/dev/pts file system for Unix98 PTYs" as well. - - If you want to say Y here, you need to have the C library glibc 2.1 - or later (equal to libc-6.1, check with "ls -l /lib/libc.so.*"). - Read the instructions in <file:Documentation/Changes> pertaining to - pseudo terminals. It's safe to say N. - -config UNIX98_PTY_COUNT - int "Maximum number of Unix98 PTYs in use (0-2048)" - depends on UNIX98_PTYS - default "256" - help - The maximum number of Unix98 PTYs that can be used at any one time. - The default is 256, and should be enough for desktop systems. Server - machines which support incoming telnet/rlogin/ssh connections and/or - serve several X terminals may want to increase this: every incoming - connection and every xterm uses up one PTY. - - When not in use, each additional set of 256 PTYs occupy - approximately 8 KB of kernel memory on 32-bit architectures. - -endmenu - -menu "XFree86 DRI support" - -config DRM - bool "Direct Rendering Manager (XFree86 DRI support)" - help - Kernel-level support for the Direct Rendering Infrastructure (DRI) - introduced in XFree86 4.0. If you say Y here, you need to select - the module that's right for your graphics card from the list below. - These modules provide support for synchronization, security, and - DMA transfers. Please see <http://dri.sourceforge.net/> for more - details. You should also select and configure AGP - (/dev/agpgart) support. - -config DRM_FFB - tristate "Creator/Creator3D" - depends on DRM && BROKEN - help - Choose this option if you have one of Sun's Creator3D-based graphics - and frame buffer cards. Product page at - <http://www.sun.com/desktop/products/Graphics/creator3d.html>. - -config DRM_TDFX - tristate "3dfx Banshee/Voodoo3+" - depends on DRM - help - Choose this option if you have a 3dfx Banshee or Voodoo3 (or later), - graphics card. If M is selected, the module will be called tdfx. - -config DRM_R128 - tristate "ATI Rage 128" - depends on DRM - help - Choose this option if you have an ATI Rage 128 graphics card. If M - is selected, the module will be called r128. AGP support for - this card is strongly suggested (unless you have a PCI version). - -endmenu - -source "drivers/input/Kconfig" - -source "drivers/i2c/Kconfig" - source "fs/Kconfig" -source "drivers/media/Kconfig" - -source "sound/Kconfig" - -source "drivers/usb/Kconfig" - -source "drivers/infiniband/Kconfig" - -source "drivers/char/watchdog/Kconfig" - source "arch/sparc64/oprofile/Kconfig" source "arch/sparc64/Kconfig.debug" diff --git a/arch/sparc64/kernel/Makefile b/arch/sparc64/kernel/Makefile index 093281bdf85f..6f00ab8b9d23 100644 --- a/arch/sparc64/kernel/Makefile +++ b/arch/sparc64/kernel/Makefile @@ -8,7 +8,7 @@ EXTRA_CFLAGS := -Werror extra-y := head.o init_task.o vmlinux.lds obj-y := process.o setup.o cpu.o idprom.o \ - traps.o devices.o auxio.o \ + traps.o devices.o auxio.o una_asm.o \ irq.o ptrace.o time.o sys_sparc.o signal.o \ unaligned.o central.o pci.o starfire.o semaphore.o \ power.o sbus.o iommu_common.o sparc64_ksyms.o chmc.o diff --git a/arch/sparc64/kernel/asm-offsets.c b/arch/sparc64/kernel/asm-offsets.c new file mode 100644 index 000000000000..9e263112a6e2 --- /dev/null +++ b/arch/sparc64/kernel/asm-offsets.c @@ -0,0 +1 @@ +/* Dummy asm-offsets.c file. Required by kbuild and ready to be used - hint! */ diff --git a/arch/sparc64/kernel/dtlb_backend.S b/arch/sparc64/kernel/dtlb_backend.S index b73a3c858770..538522848ad4 100644 --- a/arch/sparc64/kernel/dtlb_backend.S +++ b/arch/sparc64/kernel/dtlb_backend.S @@ -16,7 +16,7 @@ #elif PAGE_SHIFT == 19 #define SZ_BITS _PAGE_SZ512K #elif PAGE_SHIFT == 22 -#define SZ_BITS _PAGE_SZ4M +#define SZ_BITS _PAGE_SZ4MB #endif #define VALID_SZ_BITS (_PAGE_VALID | SZ_BITS) diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S index d3973d8a7195..3e0badb820c5 100644 --- a/arch/sparc64/kernel/entry.S +++ b/arch/sparc64/kernel/entry.S @@ -21,8 +21,7 @@ #include <asm/visasm.h> #include <asm/estate.h> #include <asm/auxio.h> - -/* #define SYSCALL_TRACING 1 */ +#include <asm/sfafsr.h> #define curptr g6 @@ -692,14 +691,159 @@ netbsd_syscall: retl nop - /* These next few routines must be sure to clear the - * SFSR FaultValid bit so that the fast tlb data protection - * handler does not flush the wrong context and lock up the - * box. + /* We need to carefully read the error status, ACK + * the errors, prevent recursive traps, and pass the + * information on to C code for logging. + * + * We pass the AFAR in as-is, and we encode the status + * information as described in asm-sparc64/sfafsr.h + */ + .globl __spitfire_access_error +__spitfire_access_error: + /* Disable ESTATE error reporting so that we do not + * take recursive traps and RED state the processor. + */ + stxa %g0, [%g0] ASI_ESTATE_ERROR_EN + membar #Sync + + mov UDBE_UE, %g1 + ldxa [%g0] ASI_AFSR, %g4 ! Get AFSR + + /* __spitfire_cee_trap branches here with AFSR in %g4 and + * UDBE_CE in %g1. It only clears ESTATE_ERR_CE in the + * ESTATE Error Enable register. + */ +__spitfire_cee_trap_continue: + ldxa [%g0] ASI_AFAR, %g5 ! Get AFAR + + rdpr %tt, %g3 + and %g3, 0x1ff, %g3 ! Paranoia + sllx %g3, SFSTAT_TRAP_TYPE_SHIFT, %g3 + or %g4, %g3, %g4 + rdpr %tl, %g3 + cmp %g3, 1 + mov 1, %g3 + bleu %xcc, 1f + sllx %g3, SFSTAT_TL_GT_ONE_SHIFT, %g3 + + or %g4, %g3, %g4 + + /* Read in the UDB error register state, clearing the + * sticky error bits as-needed. We only clear them if + * the UE bit is set. Likewise, __spitfire_cee_trap + * below will only do so if the CE bit is set. + * + * NOTE: UltraSparc-I/II have high and low UDB error + * registers, corresponding to the two UDB units + * present on those chips. UltraSparc-IIi only + * has a single UDB, called "SDB" in the manual. + * For IIi the upper UDB register always reads + * as zero so for our purposes things will just + * work with the checks below. */ - .globl __do_data_access_exception - .globl __do_data_access_exception_tl1 -__do_data_access_exception_tl1: +1: ldxa [%g0] ASI_UDBH_ERROR_R, %g3 + and %g3, 0x3ff, %g7 ! Paranoia + sllx %g7, SFSTAT_UDBH_SHIFT, %g7 + or %g4, %g7, %g4 + andcc %g3, %g1, %g3 ! UDBE_UE or UDBE_CE + be,pn %xcc, 1f + nop + stxa %g3, [%g0] ASI_UDB_ERROR_W + membar #Sync + +1: mov 0x18, %g3 + ldxa [%g3] ASI_UDBL_ERROR_R, %g3 + and %g3, 0x3ff, %g7 ! Paranoia + sllx %g7, SFSTAT_UDBL_SHIFT, %g7 + or %g4, %g7, %g4 + andcc %g3, %g1, %g3 ! UDBE_UE or UDBE_CE + be,pn %xcc, 1f + nop + mov 0x18, %g7 + stxa %g3, [%g7] ASI_UDB_ERROR_W + membar #Sync + +1: /* Ok, now that we've latched the error state, + * clear the sticky bits in the AFSR. + */ + stxa %g4, [%g0] ASI_AFSR + membar #Sync + + rdpr %tl, %g2 + cmp %g2, 1 + rdpr %pil, %g2 + bleu,pt %xcc, 1f + wrpr %g0, 15, %pil + + ba,pt %xcc, etraptl1 + rd %pc, %g7 + + ba,pt %xcc, 2f + nop + +1: ba,pt %xcc, etrap_irq + rd %pc, %g7 + +2: mov %l4, %o1 + mov %l5, %o2 + call spitfire_access_error + add %sp, PTREGS_OFF, %o0 + ba,pt %xcc, rtrap + clr %l6 + + /* This is the trap handler entry point for ECC correctable + * errors. They are corrected, but we listen for the trap + * so that the event can be logged. + * + * Disrupting errors are either: + * 1) single-bit ECC errors during UDB reads to system + * memory + * 2) data parity errors during write-back events + * + * As far as I can make out from the manual, the CEE trap + * is only for correctable errors during memory read + * accesses by the front-end of the processor. + * + * The code below is only for trap level 1 CEE events, + * as it is the only situation where we can safely record + * and log. For trap level >1 we just clear the CE bit + * in the AFSR and return. + * + * This is just like __spiftire_access_error above, but it + * specifically handles correctable errors. If an + * uncorrectable error is indicated in the AFSR we + * will branch directly above to __spitfire_access_error + * to handle it instead. Uncorrectable therefore takes + * priority over correctable, and the error logging + * C code will notice this case by inspecting the + * trap type. + */ + .globl __spitfire_cee_trap +__spitfire_cee_trap: + ldxa [%g0] ASI_AFSR, %g4 ! Get AFSR + mov 1, %g3 + sllx %g3, SFAFSR_UE_SHIFT, %g3 + andcc %g4, %g3, %g0 ! Check for UE + bne,pn %xcc, __spitfire_access_error + nop + + /* Ok, in this case we only have a correctable error. + * Indicate we only wish to capture that state in register + * %g1, and we only disable CE error reporting unlike UE + * handling which disables all errors. + */ + ldxa [%g0] ASI_ESTATE_ERROR_EN, %g3 + andn %g3, ESTATE_ERR_CE, %g3 + stxa %g3, [%g0] ASI_ESTATE_ERROR_EN + membar #Sync + + /* Preserve AFSR in %g4, indicate UDB state to capture in %g1 */ + ba,pt %xcc, __spitfire_cee_trap_continue + mov UDBE_CE, %g1 + + .globl __spitfire_data_access_exception + .globl __spitfire_data_access_exception_tl1 +__spitfire_data_access_exception_tl1: rdpr %pstate, %g4 wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate mov TLB_SFSR, %g3 @@ -708,9 +852,25 @@ __do_data_access_exception_tl1: ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR stxa %g0, [%g3] ASI_DMMU ! Clear SFSR.FaultValid bit membar #Sync + rdpr %tt, %g3 + cmp %g3, 0x80 ! first win spill/fill trap + blu,pn %xcc, 1f + cmp %g3, 0xff ! last win spill/fill trap + bgu,pn %xcc, 1f + nop ba,pt %xcc, winfix_dax rdpr %tpc, %g3 -__do_data_access_exception: +1: sethi %hi(109f), %g7 + ba,pt %xcc, etraptl1 +109: or %g7, %lo(109b), %g7 + mov %l4, %o1 + mov %l5, %o2 + call spitfire_data_access_exception_tl1 + add %sp, PTREGS_OFF, %o0 + ba,pt %xcc, rtrap + clr %l6 + +__spitfire_data_access_exception: rdpr %pstate, %g4 wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate mov TLB_SFSR, %g3 @@ -724,20 +884,19 @@ __do_data_access_exception: 109: or %g7, %lo(109b), %g7 mov %l4, %o1 mov %l5, %o2 - call data_access_exception + call spitfire_data_access_exception add %sp, PTREGS_OFF, %o0 ba,pt %xcc, rtrap clr %l6 - .globl __do_instruction_access_exception - .globl __do_instruction_access_exception_tl1 -__do_instruction_access_exception_tl1: + .globl __spitfire_insn_access_exception + .globl __spitfire_insn_access_exception_tl1 +__spitfire_insn_access_exception_tl1: rdpr %pstate, %g4 wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g5 - ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR - ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR + ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR + rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit membar #Sync sethi %hi(109f), %g7 @@ -745,18 +904,17 @@ __do_instruction_access_exception_tl1: 109: or %g7, %lo(109b), %g7 mov %l4, %o1 mov %l5, %o2 - call instruction_access_exception_tl1 + call spitfire_insn_access_exception_tl1 add %sp, PTREGS_OFF, %o0 ba,pt %xcc, rtrap clr %l6 -__do_instruction_access_exception: +__spitfire_insn_access_exception: rdpr %pstate, %g4 wrpr %g4, PSTATE_MG|PSTATE_AG, %pstate mov TLB_SFSR, %g3 - mov DMMU_SFAR, %g5 - ldxa [%g3] ASI_DMMU, %g4 ! Get SFSR - ldxa [%g5] ASI_DMMU, %g5 ! Get SFAR + ldxa [%g3] ASI_IMMU, %g4 ! Get SFSR + rdpr %tpc, %g5 ! IMMU has no SFAR, use TPC stxa %g0, [%g3] ASI_IMMU ! Clear FaultValid bit membar #Sync sethi %hi(109f), %g7 @@ -764,235 +922,11 @@ __do_instruction_access_exception: 109: or %g7, %lo(109b), %g7 mov %l4, %o1 mov %l5, %o2 - call instruction_access_exception + call spitfire_insn_access_exception add %sp, PTREGS_OFF, %o0 ba,pt %xcc, rtrap clr %l6 - /* This is the trap handler entry point for ECC correctable - * errors. They are corrected, but we listen for the trap - * so that the event can be logged. - * - * Disrupting errors are either: - * 1) single-bit ECC errors during UDB reads to system - * memory - * 2) data parity errors during write-back events - * - * As far as I can make out from the manual, the CEE trap - * is only for correctable errors during memory read - * accesses by the front-end of the processor. - * - * The code below is only for trap level 1 CEE events, - * as it is the only situation where we can safely record - * and log. For trap level >1 we just clear the CE bit - * in the AFSR and return. - */ - - /* Our trap handling infrastructure allows us to preserve - * two 64-bit values during etrap for arguments to - * subsequent C code. Therefore we encode the information - * as follows: - * - * value 1) Full 64-bits of AFAR - * value 2) Low 33-bits of AFSR, then bits 33-->42 - * are UDBL error status and bits 43-->52 - * are UDBH error status - */ - .align 64 - .globl cee_trap -cee_trap: - ldxa [%g0] ASI_AFSR, %g1 ! Read AFSR - ldxa [%g0] ASI_AFAR, %g2 ! Read AFAR - sllx %g1, 31, %g1 ! Clear reserved bits - srlx %g1, 31, %g1 ! in AFSR - - /* NOTE: UltraSparc-I/II have high and low UDB error - * registers, corresponding to the two UDB units - * present on those chips. UltraSparc-IIi only - * has a single UDB, called "SDB" in the manual. - * For IIi the upper UDB register always reads - * as zero so for our purposes things will just - * work with the checks below. - */ - ldxa [%g0] ASI_UDBL_ERROR_R, %g3 ! Read UDB-Low error status - andcc %g3, (1 << 8), %g4 ! Check CE bit - sllx %g3, (64 - 10), %g3 ! Clear reserved bits - srlx %g3, (64 - 10), %g3 ! in UDB-Low error status - - sllx %g3, (33 + 0), %g3 ! Shift up to encoding area - or %g1, %g3, %g1 ! Or it in - be,pn %xcc, 1f ! Branch if CE bit was clear - nop - stxa %g4, [%g0] ASI_UDB_ERROR_W ! Clear CE sticky bit in UDBL - membar #Sync ! Synchronize ASI stores -1: mov 0x18, %g5 ! Addr of UDB-High error status - ldxa [%g5] ASI_UDBH_ERROR_R, %g3 ! Read it - - andcc %g3, (1 << 8), %g4 ! Check CE bit - sllx %g3, (64 - 10), %g3 ! Clear reserved bits - srlx %g3, (64 - 10), %g3 ! in UDB-High error status - sllx %g3, (33 + 10), %g3 ! Shift up to encoding area - or %g1, %g3, %g1 ! Or it in - be,pn %xcc, 1f ! Branch if CE bit was clear - nop - nop - - stxa %g4, [%g5] ASI_UDB_ERROR_W ! Clear CE sticky bit in UDBH - membar #Sync ! Synchronize ASI stores -1: mov 1, %g5 ! AFSR CE bit is - sllx %g5, 20, %g5 ! bit 20 - stxa %g5, [%g0] ASI_AFSR ! Clear CE sticky bit in AFSR - membar #Sync ! Synchronize ASI stores - sllx %g2, (64 - 41), %g2 ! Clear reserved bits - srlx %g2, (64 - 41), %g2 ! in latched AFAR - - andn %g2, 0x0f, %g2 ! Finish resv bit clearing - mov %g1, %g4 ! Move AFSR+UDB* into save reg - mov %g2, %g5 ! Move AFAR into save reg - rdpr %pil, %g2 - wrpr %g0, 15, %pil - ba,pt %xcc, etrap_irq - rd %pc, %g7 - mov %l4, %o0 - - mov %l5, %o1 - call cee_log - add %sp, PTREGS_OFF, %o2 - ba,a,pt %xcc, rtrap_irq - - /* Capture I/D/E-cache state into per-cpu error scoreboard. - * - * %g1: (TL>=0) ? 1 : 0 - * %g2: scratch - * %g3: scratch - * %g4: AFSR - * %g5: AFAR - * %g6: current thread ptr - * %g7: scratch - */ -#define CHEETAH_LOG_ERROR \ - /* Put "TL1" software bit into AFSR. */ \ - and %g1, 0x1, %g1; \ - sllx %g1, 63, %g2; \ - or %g4, %g2, %g4; \ - /* Get log entry pointer for this cpu at this trap level. */ \ - BRANCH_IF_JALAPENO(g2,g3,50f) \ - ldxa [%g0] ASI_SAFARI_CONFIG, %g2; \ - srlx %g2, 17, %g2; \ - ba,pt %xcc, 60f; \ - and %g2, 0x3ff, %g2; \ -50: ldxa [%g0] ASI_JBUS_CONFIG, %g2; \ - srlx %g2, 17, %g2; \ - and %g2, 0x1f, %g2; \ -60: sllx %g2, 9, %g2; \ - sethi %hi(cheetah_error_log), %g3; \ - ldx [%g3 + %lo(cheetah_error_log)], %g3; \ - brz,pn %g3, 80f; \ - nop; \ - add %g3, %g2, %g3; \ - sllx %g1, 8, %g1; \ - add %g3, %g1, %g1; \ - /* %g1 holds pointer to the top of the logging scoreboard */ \ - ldx [%g1 + 0x0], %g7; \ - cmp %g7, -1; \ - bne,pn %xcc, 80f; \ - nop; \ - stx %g4, [%g1 + 0x0]; \ - stx %g5, [%g1 + 0x8]; \ - add %g1, 0x10, %g1; \ - /* %g1 now points to D-cache logging area */ \ - set 0x3ff8, %g2; /* DC_addr mask */ \ - and %g5, %g2, %g2; /* DC_addr bits of AFAR */ \ - srlx %g5, 12, %g3; \ - or %g3, 1, %g3; /* PHYS tag + valid */ \ -10: ldxa [%g2] ASI_DCACHE_TAG, %g7; \ - cmp %g3, %g7; /* TAG match? */ \ - bne,pt %xcc, 13f; \ - nop; \ - /* Yep, what we want, capture state. */ \ - stx %g2, [%g1 + 0x20]; \ - stx %g7, [%g1 + 0x28]; \ - /* A membar Sync is required before and after utag access. */ \ - membar #Sync; \ - ldxa [%g2] ASI_DCACHE_UTAG, %g7; \ - membar #Sync; \ - stx %g7, [%g1 + 0x30]; \ - ldxa [%g2] ASI_DCACHE_SNOOP_TAG, %g7; \ - stx %g7, [%g1 + 0x38]; \ - clr %g3; \ -12: ldxa [%g2 + %g3] ASI_DCACHE_DATA, %g7; \ - stx %g7, [%g1]; \ - add %g3, (1 << 5), %g3; \ - cmp %g3, (4 << 5); \ - bl,pt %xcc, 12b; \ - add %g1, 0x8, %g1; \ - ba,pt %xcc, 20f; \ - add %g1, 0x20, %g1; \ -13: sethi %hi(1 << 14), %g7; \ - add %g2, %g7, %g2; \ - srlx %g2, 14, %g7; \ - cmp %g7, 4; \ - bl,pt %xcc, 10b; \ - nop; \ - add %g1, 0x40, %g1; \ -20: /* %g1 now points to I-cache logging area */ \ - set 0x1fe0, %g2; /* IC_addr mask */ \ - and %g5, %g2, %g2; /* IC_addr bits of AFAR */ \ - sllx %g2, 1, %g2; /* IC_addr[13:6]==VA[12:5] */ \ - srlx %g5, (13 - 8), %g3; /* Make PTAG */ \ - andn %g3, 0xff, %g3; /* Mask off undefined bits */ \ -21: ldxa [%g2] ASI_IC_TAG, %g7; \ - andn %g7, 0xff, %g7; \ - cmp %g3, %g7; \ - bne,pt %xcc, 23f; \ - nop; \ - /* Yep, what we want, capture state. */ \ - stx %g2, [%g1 + 0x40]; \ - stx %g7, [%g1 + 0x48]; \ - add %g2, (1 << 3), %g2; \ - ldxa [%g2] ASI_IC_TAG, %g7; \ - add %g2, (1 << 3), %g2; \ - stx %g7, [%g1 + 0x50]; \ - ldxa [%g2] ASI_IC_TAG, %g7; \ - add %g2, (1 << 3), %g2; \ - stx %g7, [%g1 + 0x60]; \ - ldxa [%g2] ASI_IC_TAG, %g7; \ - stx %g7, [%g1 + 0x68]; \ - sub %g2, (3 << 3), %g2; \ - ldxa [%g2] ASI_IC_STAG, %g7; \ - stx %g7, [%g1 + 0x58]; \ - clr %g3; \ - srlx %g2, 2, %g2; \ -22: ldxa [%g2 + %g3] ASI_IC_INSTR, %g7; \ - stx %g7, [%g1]; \ - add %g3, (1 << 3), %g3; \ - cmp %g3, (8 << 3); \ - bl,pt %xcc, 22b; \ - add %g1, 0x8, %g1; \ - ba,pt %xcc, 30f; \ - add %g1, 0x30, %g1; \ -23: sethi %hi(1 << 14), %g7; \ - add %g2, %g7, %g2; \ - srlx %g2, 14, %g7; \ - cmp %g7, 4; \ - bl,pt %xcc, 21b; \ - nop; \ - add %g1, 0x70, %g1; \ -30: /* %g1 now points to E-cache logging area */ \ - andn %g5, (32 - 1), %g2; /* E-cache subblock */ \ - stx %g2, [%g1 + 0x20]; \ - ldxa [%g2] ASI_EC_TAG_DATA, %g7; \ - stx %g7, [%g1 + 0x28]; \ - ldxa [%g2] ASI_EC_R, %g0; \ - clr %g3; \ -31: ldxa [%g3] ASI_EC_DATA, %g7; \ - stx %g7, [%g1 + %g3]; \ - add %g3, 0x8, %g3; \ - cmp %g3, 0x20; \ - bl,pt %xcc, 31b; \ - nop; \ -80: /* DONE */ - /* These get patched into the trap table at boot time * once we know we have a cheetah processor. */ @@ -1229,6 +1163,170 @@ dcpe_icpe_tl1_common: membar #Sync retry + /* Capture I/D/E-cache state into per-cpu error scoreboard. + * + * %g1: (TL>=0) ? 1 : 0 + * %g2: scratch + * %g3: scratch + * %g4: AFSR + * %g5: AFAR + * %g6: current thread ptr + * %g7: scratch + */ +__cheetah_log_error: + /* Put "TL1" software bit into AFSR. */ + and %g1, 0x1, %g1 + sllx %g1, 63, %g2 + or %g4, %g2, %g4 + + /* Get log entry pointer for this cpu at this trap level. */ + BRANCH_IF_JALAPENO(g2,g3,50f) + ldxa [%g0] ASI_SAFARI_CONFIG, %g2 + srlx %g2, 17, %g2 + ba,pt %xcc, 60f + and %g2, 0x3ff, %g2 + +50: ldxa [%g0] ASI_JBUS_CONFIG, %g2 + srlx %g2, 17, %g2 + and %g2, 0x1f, %g2 + +60: sllx %g2, 9, %g2 + sethi %hi(cheetah_error_log), %g3 + ldx [%g3 + %lo(cheetah_error_log)], %g3 + brz,pn %g3, 80f + nop + + add %g3, %g2, %g3 + sllx %g1, 8, %g1 + add %g3, %g1, %g1 + + /* %g1 holds pointer to the top of the logging scoreboard */ + ldx [%g1 + 0x0], %g7 + cmp %g7, -1 + bne,pn %xcc, 80f + nop + + stx %g4, [%g1 + 0x0] + stx %g5, [%g1 + 0x8] + add %g1, 0x10, %g1 + + /* %g1 now points to D-cache logging area */ + set 0x3ff8, %g2 /* DC_addr mask */ + and %g5, %g2, %g2 /* DC_addr bits of AFAR */ + srlx %g5, 12, %g3 + or %g3, 1, %g3 /* PHYS tag + valid */ + +10: ldxa [%g2] ASI_DCACHE_TAG, %g7 + cmp %g3, %g7 /* TAG match? */ + bne,pt %xcc, 13f + nop + + /* Yep, what we want, capture state. */ + stx %g2, [%g1 + 0x20] + stx %g7, [%g1 + 0x28] + + /* A membar Sync is required before and after utag access. */ + membar #Sync + ldxa [%g2] ASI_DCACHE_UTAG, %g7 + membar #Sync + stx %g7, [%g1 + 0x30] + ldxa [%g2] ASI_DCACHE_SNOOP_TAG, %g7 + stx %g7, [%g1 + 0x38] + clr %g3 + +12: ldxa [%g2 + %g3] ASI_DCACHE_DATA, %g7 + stx %g7, [%g1] + add %g3, (1 << 5), %g3 + cmp %g3, (4 << 5) + bl,pt %xcc, 12b + add %g1, 0x8, %g1 + + ba,pt %xcc, 20f + add %g1, 0x20, %g1 + +13: sethi %hi(1 << 14), %g7 + add %g2, %g7, %g2 + srlx %g2, 14, %g7 + cmp %g7, 4 + bl,pt %xcc, 10b + nop + + add %g1, 0x40, %g1 + + /* %g1 now points to I-cache logging area */ +20: set 0x1fe0, %g2 /* IC_addr mask */ + and %g5, %g2, %g2 /* IC_addr bits of AFAR */ + sllx %g2, 1, %g2 /* IC_addr[13:6]==VA[12:5] */ + srlx %g5, (13 - 8), %g3 /* Make PTAG */ + andn %g3, 0xff, %g3 /* Mask off undefined bits */ + +21: ldxa [%g2] ASI_IC_TAG, %g7 + andn %g7, 0xff, %g7 + cmp %g3, %g7 + bne,pt %xcc, 23f + nop + + /* Yep, what we want, capture state. */ + stx %g2, [%g1 + 0x40] + stx %g7, [%g1 + 0x48] + add %g2, (1 << 3), %g2 + ldxa [%g2] ASI_IC_TAG, %g7 + add %g2, (1 << 3), %g2 + stx %g7, [%g1 + 0x50] + ldxa [%g2] ASI_IC_TAG, %g7 + add %g2, (1 << 3), %g2 + stx %g7, [%g1 + 0x60] + ldxa [%g2] ASI_IC_TAG, %g7 + stx %g7, [%g1 + 0x68] + sub %g2, (3 << 3), %g2 + ldxa [%g2] ASI_IC_STAG, %g7 + stx %g7, [%g1 + 0x58] + clr %g3 + srlx %g2, 2, %g2 + +22: ldxa [%g2 + %g3] ASI_IC_INSTR, %g7 + stx %g7, [%g1] + add %g3, (1 << 3), %g3 + cmp %g3, (8 << 3) + bl,pt %xcc, 22b + add %g1, 0x8, %g1 + + ba,pt %xcc, 30f + add %g1, 0x30, %g1 + +23: sethi %hi(1 << 14), %g7 + add %g2, %g7, %g2 + srlx %g2, 14, %g7 + cmp %g7, 4 + bl,pt %xcc, 21b + nop + + add %g1, 0x70, %g1 + + /* %g1 now points to E-cache logging area */ +30: andn %g5, (32 - 1), %g2 + stx %g2, [%g1 + 0x20] + ldxa [%g2] ASI_EC_TAG_DATA, %g7 + stx %g7, [%g1 + 0x28] + ldxa [%g2] ASI_EC_R, %g0 + clr %g3 + +31: ldxa [%g3] ASI_EC_DATA, %g7 + stx %g7, [%g1 + %g3] + add %g3, 0x8, %g3 + cmp %g3, 0x20 + + bl,pt %xcc, 31b + nop +80: + rdpr %tt, %g2 + cmp %g2, 0x70 + be c_fast_ecc + cmp %g2, 0x63 + be c_cee + nop + ba,pt %xcc, c_deferred + /* Cheetah FECC trap handling, we get here from tl{0,1}_fecc * in the trap table. That code has done a memory barrier * and has disabled both the I-cache and D-cache in the DCU @@ -1254,8 +1352,10 @@ cheetah_fast_ecc: stxa %g4, [%g0] ASI_AFSR membar #Sync - CHEETAH_LOG_ERROR + ba,pt %xcc, __cheetah_log_error + nop +c_fast_ecc: rdpr %pil, %g2 wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq @@ -1280,8 +1380,10 @@ cheetah_cee: stxa %g4, [%g0] ASI_AFSR membar #Sync - CHEETAH_LOG_ERROR + ba,pt %xcc, __cheetah_log_error + nop +c_cee: rdpr %pil, %g2 wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq @@ -1306,8 +1408,10 @@ cheetah_deferred_trap: stxa %g4, [%g0] ASI_AFSR membar #Sync - CHEETAH_LOG_ERROR + ba,pt %xcc, __cheetah_log_error + nop +c_deferred: rdpr %pil, %g2 wrpr %g0, 15, %pil ba,pt %xcc, etrap_irq @@ -1554,11 +1658,12 @@ sys_ptrace: add %sp, PTREGS_OFF, %o0 nop .align 32 1: ldx [%curptr + TI_FLAGS], %l5 - andcc %l5, _TIF_SYSCALL_TRACE, %g0 + andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 be,pt %icc, rtrap clr %l6 + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + mov 1, %o1 ba,pt %xcc, rtrap clr %l6 @@ -1601,11 +1706,11 @@ sys_clone: flushw ba,pt %xcc, sparc_do_fork add %sp, PTREGS_OFF, %o2 ret_from_syscall: - /* Clear SPARC_FLAG_NEWCHILD, switch_to leaves thread.flags in - * %o7 for us. Check performance counter stuff too. + /* Clear current_thread_info()->new_child, and + * check performance counter stuff too. */ - andn %o7, _TIF_NEWCHILD, %l0 - stx %l0, [%g6 + TI_FLAGS] + stb %g0, [%g6 + TI_NEW_CHILD] + ldx [%g6 + TI_FLAGS], %l0 call schedule_tail mov %g7, %o0 andcc %l0, _TIF_PERFCTR, %g0 @@ -1642,18 +1747,20 @@ linux_sparc_ni_syscall: or %l7, %lo(sys_ni_syscall), %l7 linux_syscall_trace32: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + clr %o1 srl %i0, 0, %o0 - mov %i4, %o4 + srl %i4, 0, %o4 srl %i1, 0, %o1 srl %i2, 0, %o2 b,pt %xcc, 2f srl %i3, 0, %o3 linux_syscall_trace: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + clr %o1 mov %i0, %o0 mov %i1, %o1 mov %i2, %o2 @@ -1671,11 +1778,6 @@ linux_sparc_syscall32: bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI srl %i0, 0, %o0 ! IEU0 sll %g1, 2, %l4 ! IEU0 Group -#ifdef SYSCALL_TRACING - call syscall_trace_entry - add %sp, PTREGS_OFF, %o0 - srl %i0, 0, %o0 -#endif srl %i4, 0, %o4 ! IEU1 lduw [%l7 + %l4], %l7 ! Load srl %i1, 0, %o1 ! IEU0 Group @@ -1683,7 +1785,7 @@ linux_sparc_syscall32: srl %i5, 0, %o5 ! IEU1 srl %i2, 0, %o2 ! IEU0 Group - andcc %l0, _TIF_SYSCALL_TRACE, %g0 ! IEU0 Group + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 bne,pn %icc, linux_syscall_trace32 ! CTI mov %i0, %l5 ! IEU1 call %l7 ! CTI Group brk forced @@ -1699,11 +1801,6 @@ linux_sparc_syscall: bgeu,pn %xcc, linux_sparc_ni_syscall ! CTI mov %i0, %o0 ! IEU0 sll %g1, 2, %l4 ! IEU0 Group -#ifdef SYSCALL_TRACING - call syscall_trace_entry - add %sp, PTREGS_OFF, %o0 - mov %i0, %o0 -#endif mov %i1, %o1 ! IEU1 lduw [%l7 + %l4], %l7 ! Load 4: mov %i2, %o2 ! IEU0 Group @@ -1711,7 +1808,7 @@ linux_sparc_syscall: mov %i3, %o3 ! IEU1 mov %i4, %o4 ! IEU0 Group - andcc %l0, _TIF_SYSCALL_TRACE, %g0 ! IEU1 Group+1 bubble + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 bne,pn %icc, linux_syscall_trace ! CTI Group mov %i0, %l5 ! IEU0 2: call %l7 ! CTI Group brk forced @@ -1720,12 +1817,6 @@ linux_sparc_syscall: 3: stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] ret_sys_call: -#ifdef SYSCALL_TRACING - mov %o0, %o1 - call syscall_trace_exit - add %sp, PTREGS_OFF, %o0 - mov %o1, %o0 -#endif ldx [%sp + PTREGS_OFF + PT_V9_TSTATE], %g3 ldx [%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc sra %o0, 0, %o0 @@ -1735,17 +1826,16 @@ ret_sys_call: /* Check if force_successful_syscall_return() * was invoked. */ - ldx [%curptr + TI_FLAGS], %l0 - andcc %l0, _TIF_SYSCALL_SUCCESS, %g0 - be,pt %icc, 1f - andn %l0, _TIF_SYSCALL_SUCCESS, %l0 + ldub [%curptr + TI_SYS_NOERROR], %l0 + brz,pt %l0, 1f + nop ba,pt %xcc, 80f - stx %l0, [%curptr + TI_FLAGS] + stb %g0, [%curptr + TI_SYS_NOERROR] 1: cmp %o0, -ERESTART_RESTARTBLOCK bgeu,pn %xcc, 1f - andcc %l0, _TIF_SYSCALL_TRACE, %l6 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6 80: /* System call success, clear Carry condition code. */ andn %g3, %g2, %g3 @@ -1760,7 +1850,7 @@ ret_sys_call: /* System call failure, set Carry condition code. * Also, get abs(errno) to return to the process. */ - andcc %l0, _TIF_SYSCALL_TRACE, %l6 + andcc %l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %l6 sub %g0, %o0, %o0 or %g3, %g2, %g3 stx %o0, [%sp + PTREGS_OFF + PT_V9_I0] @@ -1773,8 +1863,9 @@ ret_sys_call: b,pt %xcc, rtrap stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] linux_syscall_trace2: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + mov 1, %o1 stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC] ba,pt %xcc, rtrap stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S index 8104a56ca2d8..1fa06c4e3bdb 100644 --- a/arch/sparc64/kernel/head.S +++ b/arch/sparc64/kernel/head.S @@ -538,11 +538,12 @@ cheetah_tlb_fixup: nop call cheetah_plus_patch_winfixup nop - 2: /* Patch copy/page operations to cheetah optimized versions. */ call cheetah_patch_copyops nop + call cheetah_patch_copy_page + nop call cheetah_patch_cachetlbops nop diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c index daa2fb93052c..c9b69167632a 100644 --- a/arch/sparc64/kernel/irq.c +++ b/arch/sparc64/kernel/irq.c @@ -782,8 +782,14 @@ static void distribute_irqs(void) } #endif +struct sun5_timer { + u64 count0; + u64 limit0; + u64 count1; + u64 limit1; +}; -struct sun5_timer *prom_timers; +static struct sun5_timer *prom_timers; static u64 prom_limit0, prom_limit1; static void map_prom_timers(void) @@ -839,18 +845,6 @@ static void kill_prom_timer(void) : "g1", "g2"); } -void enable_prom_timer(void) -{ - if (!prom_timers) - return; - - /* Set it to whatever was there before. */ - prom_timers->limit1 = prom_limit1; - prom_timers->count1 = 0; - prom_timers->limit0 = prom_limit0; - prom_timers->count0 = 0; -} - void init_irqwork_curcpu(void) { register struct irq_work_struct *workp asm("o2"); diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c index bbf11f85dab1..0d66d07c8c6e 100644 --- a/arch/sparc64/kernel/kprobes.c +++ b/arch/sparc64/kernel/kprobes.c @@ -8,6 +8,7 @@ #include <linux/kprobes.h> #include <asm/kdebug.h> #include <asm/signal.h> +#include <asm/cacheflush.h> /* We do not have hardware single-stepping on sparc64. * So we implement software single-stepping with breakpoint @@ -37,31 +38,31 @@ * - Mark that we are no longer actively in a kprobe. */ -int arch_prepare_kprobe(struct kprobe *p) +int __kprobes arch_prepare_kprobe(struct kprobe *p) { return 0; } -void arch_copy_kprobe(struct kprobe *p) +void __kprobes arch_copy_kprobe(struct kprobe *p) { p->ainsn.insn[0] = *p->addr; p->ainsn.insn[1] = BREAKPOINT_INSTRUCTION_2; p->opcode = *p->addr; } -void arch_arm_kprobe(struct kprobe *p) +void __kprobes arch_arm_kprobe(struct kprobe *p) { *p->addr = BREAKPOINT_INSTRUCTION; flushi(p->addr); } -void arch_disarm_kprobe(struct kprobe *p) +void __kprobes arch_disarm_kprobe(struct kprobe *p) { *p->addr = p->opcode; flushi(p->addr); } -void arch_remove_kprobe(struct kprobe *p) +void __kprobes arch_remove_kprobe(struct kprobe *p) { } @@ -111,7 +112,7 @@ static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs) } } -static int kprobe_handler(struct pt_regs *regs) +static int __kprobes kprobe_handler(struct pt_regs *regs) { struct kprobe *p; void *addr = (void *) regs->tpc; @@ -191,8 +192,9 @@ no_kprobe: * The original INSN location was REAL_PC, it actually * executed at PC and produced destination address NPC. */ -static unsigned long relbranch_fixup(u32 insn, unsigned long real_pc, - unsigned long pc, unsigned long npc) +static unsigned long __kprobes relbranch_fixup(u32 insn, unsigned long real_pc, + unsigned long pc, + unsigned long npc) { /* Branch not taken, no mods necessary. */ if (npc == pc + 0x4UL) @@ -217,7 +219,8 @@ static unsigned long relbranch_fixup(u32 insn, unsigned long real_pc, /* If INSN is an instruction which writes it's PC location * into a destination register, fix that up. */ -static void retpc_fixup(struct pt_regs *regs, u32 insn, unsigned long real_pc) +static void __kprobes retpc_fixup(struct pt_regs *regs, u32 insn, + unsigned long real_pc) { unsigned long *slot = NULL; @@ -257,7 +260,7 @@ static void retpc_fixup(struct pt_regs *regs, u32 insn, unsigned long real_pc) * This function prepares to return from the post-single-step * breakpoint trap. */ -static void resume_execution(struct kprobe *p, struct pt_regs *regs) +static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) { u32 insn = p->ainsn.insn[0]; @@ -315,8 +318,8 @@ static inline int kprobe_fault_handler(struct pt_regs *regs, int trapnr) /* * Wrapper routine to for handling exceptions. */ -int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, - void *data) +int __kprobes kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) { struct die_args *args = (struct die_args *)data; switch (val) { @@ -344,7 +347,8 @@ int kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, return NOTIFY_DONE; } -asmlinkage void kprobe_trap(unsigned long trap_level, struct pt_regs *regs) +asmlinkage void __kprobes kprobe_trap(unsigned long trap_level, + struct pt_regs *regs) { BUG_ON(trap_level != 0x170 && trap_level != 0x171); @@ -368,7 +372,7 @@ static struct pt_regs jprobe_saved_regs; static struct pt_regs *jprobe_saved_regs_location; static struct sparc_stackf jprobe_saved_stack; -int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) +int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) { struct jprobe *jp = container_of(p, struct jprobe, kp); @@ -390,7 +394,7 @@ int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) return 1; } -void jprobe_return(void) +void __kprobes jprobe_return(void) { preempt_enable_no_resched(); __asm__ __volatile__( @@ -403,7 +407,7 @@ extern void jprobe_return_trap_instruction(void); extern void __show_regs(struct pt_regs * regs); -int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) +int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) { u32 *addr = (u32 *) regs->tpc; diff --git a/arch/sparc64/kernel/pci.c b/arch/sparc64/kernel/pci.c index bba140d98b1b..2ff7c32ab0ce 100644 --- a/arch/sparc64/kernel/pci.c +++ b/arch/sparc64/kernel/pci.c @@ -359,134 +359,17 @@ void pcibios_fixup_bus(struct pci_bus *pbus) pbus->resource[1] = &pbm->mem_space; } -int pci_claim_resource(struct pci_dev *pdev, int resource) +struct resource *pcibios_select_root(struct pci_dev *pdev, struct resource *r) { struct pci_pbm_info *pbm = pdev->bus->sysdata; - struct resource *res = &pdev->resource[resource]; - struct resource *root; - - if (!pbm) - return -EINVAL; + struct resource *root = NULL; - if (res->flags & IORESOURCE_IO) + if (r->flags & IORESOURCE_IO) root = &pbm->io_space; - else + if (r->flags & IORESOURCE_MEM) root = &pbm->mem_space; - pbm->parent->resource_adjust(pdev, res, root); - - return request_resource(root, res); -} - -/* - * Given the PCI bus a device resides on, try to - * find an acceptable resource allocation for a - * specific device resource.. - */ -static int pci_assign_bus_resource(const struct pci_bus *bus, - struct pci_dev *dev, - struct resource *res, - unsigned long size, - unsigned long min, - int resno) -{ - unsigned int type_mask; - int i; - - type_mask = IORESOURCE_IO | IORESOURCE_MEM; - for (i = 0 ; i < 4; i++) { - struct resource *r = bus->resource[i]; - if (!r) - continue; - - /* type_mask must match */ - if ((res->flags ^ r->flags) & type_mask) - continue; - - /* Ok, try it out.. */ - if (allocate_resource(r, res, size, min, -1, size, NULL, NULL) < 0) - continue; - - /* PCI config space updated by caller. */ - return 0; - } - return -EBUSY; -} - -int pci_assign_resource(struct pci_dev *pdev, int resource) -{ - struct pcidev_cookie *pcp = pdev->sysdata; - struct pci_pbm_info *pbm = pcp->pbm; - struct resource *res = &pdev->resource[resource]; - unsigned long min, size; - int err; - - if (res->flags & IORESOURCE_IO) - min = pbm->io_space.start + 0x400UL; - else - min = pbm->mem_space.start; - - size = res->end - res->start + 1; - - err = pci_assign_bus_resource(pdev->bus, pdev, res, size, min, resource); - - if (err < 0) { - printk("PCI: Failed to allocate resource %d for %s\n", - resource, pci_name(pdev)); - } else { - /* Update PCI config space. */ - pbm->parent->base_address_update(pdev, resource); - } - - return err; -} - -/* Sort resources by alignment */ -void pdev_sort_resources(struct pci_dev *dev, struct resource_list *head) -{ - int i; - - for (i = 0; i < PCI_NUM_RESOURCES; i++) { - struct resource *r; - struct resource_list *list, *tmp; - unsigned long r_align; - - r = &dev->resource[i]; - r_align = r->end - r->start; - - if (!(r->flags) || r->parent) - continue; - if (!r_align) { - printk(KERN_WARNING "PCI: Ignore bogus resource %d " - "[%lx:%lx] of %s\n", - i, r->start, r->end, pci_name(dev)); - continue; - } - r_align = (i < PCI_BRIDGE_RESOURCES) ? r_align + 1 : r->start; - for (list = head; ; list = list->next) { - unsigned long align = 0; - struct resource_list *ln = list->next; - int idx; - - if (ln) { - idx = ln->res - &ln->dev->resource[0]; - align = (idx < PCI_BRIDGE_RESOURCES) ? - ln->res->end - ln->res->start + 1 : - ln->res->start; - } - if (r_align > align) { - tmp = kmalloc(sizeof(*tmp), GFP_KERNEL); - if (!tmp) - panic("pdev_sort_resources(): " - "kmalloc() failed!\n"); - tmp->next = ln; - tmp->res = r; - tmp->dev = dev; - list->next = tmp; - break; - } - } - } + return root; } void pcibios_update_irq(struct pci_dev *pdev, int irq) @@ -540,6 +423,7 @@ void pcibios_bus_to_resource(struct pci_dev *pdev, struct resource *res, pbm->parent->resource_adjust(pdev, res, root); } +EXPORT_SYMBOL(pcibios_bus_to_resource); char * __init pcibios_setup(char *str) { @@ -735,8 +619,7 @@ static void __pci_mmap_set_flags(struct pci_dev *dev, struct vm_area_struct *vma static void __pci_mmap_set_pgprot(struct pci_dev *dev, struct vm_area_struct *vma, enum pci_mmap_state mmap_state) { - /* Our io_remap_page_range/io_remap_pfn_range takes care of this, - do nothing. */ + /* Our io_remap_pfn_range takes care of this, do nothing. */ } /* Perform the actual remap of the pages for a PCI device mapping, as appropriate diff --git a/arch/sparc64/kernel/pci_iommu.c b/arch/sparc64/kernel/pci_iommu.c index 2803bc7c2c79..425c60cfea19 100644 --- a/arch/sparc64/kernel/pci_iommu.c +++ b/arch/sparc64/kernel/pci_iommu.c @@ -466,7 +466,7 @@ do_flush_sync: if (!limit) break; udelay(1); - membar("#LoadLoad"); + rmb(); } if (!limit) printk(KERN_WARNING "pci_strbuf_flush: flushflag timeout " diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c index 91ab466d6c66..6ed1ef25e0ac 100644 --- a/arch/sparc64/kernel/pci_psycho.c +++ b/arch/sparc64/kernel/pci_psycho.c @@ -307,7 +307,7 @@ static unsigned char psycho_pil_table[] = { /*0x32*/15, /* Power Management */ }; -static int __init psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino) +static int psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino) { int ret; @@ -344,9 +344,9 @@ static int __init psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino) return ret; } -static unsigned int __init psycho_irq_build(struct pci_pbm_info *pbm, - struct pci_dev *pdev, - unsigned int ino) +static unsigned int psycho_irq_build(struct pci_pbm_info *pbm, + struct pci_dev *pdev, + unsigned int ino) { struct ino_bucket *bucket; unsigned long imap, iclr; @@ -1024,7 +1024,7 @@ static irqreturn_t psycho_pcierr_intr(int irq, void *dev_id, struct pt_regs *reg #define PSYCHO_CE_INO 0x2f #define PSYCHO_PCIERR_A_INO 0x30 #define PSYCHO_PCIERR_B_INO 0x31 -static void __init psycho_register_error_handlers(struct pci_controller_info *p) +static void psycho_register_error_handlers(struct pci_controller_info *p) { struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */ unsigned long base = p->pbm_A.controller_regs; @@ -1091,15 +1091,15 @@ static void __init psycho_register_error_handlers(struct pci_controller_info *p) } /* PSYCHO boot time probing and initialization. */ -static void __init psycho_resource_adjust(struct pci_dev *pdev, - struct resource *res, - struct resource *root) +static void psycho_resource_adjust(struct pci_dev *pdev, + struct resource *res, + struct resource *root) { res->start += root->start; res->end += root->start; } -static void __init psycho_base_address_update(struct pci_dev *pdev, int resource) +static void psycho_base_address_update(struct pci_dev *pdev, int resource) { struct pcidev_cookie *pcp = pdev->sysdata; struct pci_pbm_info *pbm = pcp->pbm; @@ -1144,7 +1144,7 @@ static void __init psycho_base_address_update(struct pci_dev *pdev, int resource pci_write_config_dword(pdev, where + 4, 0); } -static void __init pbm_config_busmastering(struct pci_pbm_info *pbm) +static void pbm_config_busmastering(struct pci_pbm_info *pbm) { u8 *addr; @@ -1161,8 +1161,8 @@ static void __init pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void __init pbm_scan_bus(struct pci_controller_info *p, - struct pci_pbm_info *pbm) +static void pbm_scan_bus(struct pci_controller_info *p, + struct pci_pbm_info *pbm) { struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL); @@ -1189,7 +1189,7 @@ static void __init pbm_scan_bus(struct pci_controller_info *p, pci_setup_busmastering(pbm, pbm->pci_bus); } -static void __init psycho_scan_bus(struct pci_controller_info *p) +static void psycho_scan_bus(struct pci_controller_info *p) { pbm_config_busmastering(&p->pbm_B); p->pbm_B.is_66mhz_capable = 0; @@ -1204,7 +1204,7 @@ static void __init psycho_scan_bus(struct pci_controller_info *p) psycho_register_error_handlers(p); } -static void __init psycho_iommu_init(struct pci_controller_info *p) +static void psycho_iommu_init(struct pci_controller_info *p) { struct pci_iommu *iommu = p->pbm_A.iommu; unsigned long tsbbase, i; @@ -1327,8 +1327,8 @@ static void psycho_controller_hwinit(struct pci_controller_info *p) psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIB_DIAG, tmp); } -static void __init pbm_register_toplevel_resources(struct pci_controller_info *p, - struct pci_pbm_info *pbm) +static void pbm_register_toplevel_resources(struct pci_controller_info *p, + struct pci_pbm_info *pbm) { char *name = pbm->name; @@ -1481,7 +1481,7 @@ static void psycho_pbm_init(struct pci_controller_info *p, #define PSYCHO_CONFIGSPACE 0x001000000UL -void __init psycho_init(int node, char *model_name) +void psycho_init(int node, char *model_name) { struct linux_prom64_registers pr_regs[3]; struct pci_controller_info *p; diff --git a/arch/sparc64/kernel/pci_sabre.c b/arch/sparc64/kernel/pci_sabre.c index 52bf3431a422..0ee6bd5b9ac6 100644 --- a/arch/sparc64/kernel/pci_sabre.c +++ b/arch/sparc64/kernel/pci_sabre.c @@ -554,7 +554,7 @@ static unsigned char sabre_pil_table[] = { /*0x32*/15, /* Power Management */ }; -static int __init sabre_ino_to_pil(struct pci_dev *pdev, unsigned int ino) +static int sabre_ino_to_pil(struct pci_dev *pdev, unsigned int ino) { int ret; @@ -612,9 +612,9 @@ static void sabre_wsync_handler(struct ino_bucket *bucket, void *_arg1, void *_a sabre_read(sync_reg); } -static unsigned int __init sabre_irq_build(struct pci_pbm_info *pbm, - struct pci_dev *pdev, - unsigned int ino) +static unsigned int sabre_irq_build(struct pci_pbm_info *pbm, + struct pci_dev *pdev, + unsigned int ino) { struct ino_bucket *bucket; unsigned long imap, iclr; @@ -1009,7 +1009,7 @@ static irqreturn_t sabre_pcierr_intr(int irq, void *dev_id, struct pt_regs *regs #define SABRE_UE_INO 0x2e #define SABRE_CE_INO 0x2f #define SABRE_PCIERR_INO 0x30 -static void __init sabre_register_error_handlers(struct pci_controller_info *p) +static void sabre_register_error_handlers(struct pci_controller_info *p) { struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */ unsigned long base = pbm->controller_regs; @@ -1056,9 +1056,9 @@ static void __init sabre_register_error_handlers(struct pci_controller_info *p) sabre_write(base + SABRE_PCICTRL, tmp); } -static void __init sabre_resource_adjust(struct pci_dev *pdev, - struct resource *res, - struct resource *root) +static void sabre_resource_adjust(struct pci_dev *pdev, + struct resource *res, + struct resource *root) { struct pci_pbm_info *pbm = pdev->bus->sysdata; unsigned long base; @@ -1072,7 +1072,7 @@ static void __init sabre_resource_adjust(struct pci_dev *pdev, res->end += base; } -static void __init sabre_base_address_update(struct pci_dev *pdev, int resource) +static void sabre_base_address_update(struct pci_dev *pdev, int resource) { struct pcidev_cookie *pcp = pdev->sysdata; struct pci_pbm_info *pbm = pcp->pbm; @@ -1118,7 +1118,7 @@ static void __init sabre_base_address_update(struct pci_dev *pdev, int resource) pci_write_config_dword(pdev, where + 4, 0); } -static void __init apb_init(struct pci_controller_info *p, struct pci_bus *sabre_bus) +static void apb_init(struct pci_controller_info *p, struct pci_bus *sabre_bus) { struct pci_dev *pdev; @@ -1181,7 +1181,7 @@ static struct pcidev_cookie *alloc_bridge_cookie(struct pci_pbm_info *pbm) return cookie; } -static void __init sabre_scan_bus(struct pci_controller_info *p) +static void sabre_scan_bus(struct pci_controller_info *p) { static int once; struct pci_bus *sabre_bus, *pbus; @@ -1262,9 +1262,9 @@ static void __init sabre_scan_bus(struct pci_controller_info *p) sabre_register_error_handlers(p); } -static void __init sabre_iommu_init(struct pci_controller_info *p, - int tsbsize, unsigned long dvma_offset, - u32 dma_mask) +static void sabre_iommu_init(struct pci_controller_info *p, + int tsbsize, unsigned long dvma_offset, + u32 dma_mask) { struct pci_iommu *iommu = p->pbm_A.iommu; unsigned long tsbbase, i, order; @@ -1345,8 +1345,8 @@ static void __init sabre_iommu_init(struct pci_controller_info *p, } } -static void __init pbm_register_toplevel_resources(struct pci_controller_info *p, - struct pci_pbm_info *pbm) +static void pbm_register_toplevel_resources(struct pci_controller_info *p, + struct pci_pbm_info *pbm) { char *name = pbm->name; unsigned long ibase = p->pbm_A.controller_regs + SABRE_IOSPACE; @@ -1415,7 +1415,7 @@ static void __init pbm_register_toplevel_resources(struct pci_controller_info *p &pbm->mem_space); } -static void __init sabre_pbm_init(struct pci_controller_info *p, int sabre_node, u32 dma_begin) +static void sabre_pbm_init(struct pci_controller_info *p, int sabre_node, u32 dma_begin) { struct pci_pbm_info *pbm; char namebuf[128]; @@ -1552,7 +1552,7 @@ static void __init sabre_pbm_init(struct pci_controller_info *p, int sabre_node, } } -void __init sabre_init(int pnode, char *model_name) +void sabre_init(int pnode, char *model_name) { struct linux_prom64_registers pr_regs[2]; struct pci_controller_info *p; diff --git a/arch/sparc64/kernel/pci_schizo.c b/arch/sparc64/kernel/pci_schizo.c index 6a182bb66281..331382e1a75d 100644 --- a/arch/sparc64/kernel/pci_schizo.c +++ b/arch/sparc64/kernel/pci_schizo.c @@ -285,7 +285,7 @@ static unsigned char schizo_pil_table[] = { /*0x3f*/0, /* Reserved for NewLink */ }; -static int __init schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino) +static int schizo_ino_to_pil(struct pci_dev *pdev, unsigned int ino) { int ret; @@ -1221,7 +1221,7 @@ static irqreturn_t schizo_safarierr_intr(int irq, void *dev_id, struct pt_regs * * PCI bus units of the same Tomatillo. I still have not really * figured this out... */ -static void __init tomatillo_register_error_handlers(struct pci_controller_info *p) +static void tomatillo_register_error_handlers(struct pci_controller_info *p) { struct pci_pbm_info *pbm; unsigned int irq; @@ -1359,7 +1359,7 @@ static void __init tomatillo_register_error_handlers(struct pci_controller_info (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP))); } -static void __init schizo_register_error_handlers(struct pci_controller_info *p) +static void schizo_register_error_handlers(struct pci_controller_info *p) { struct pci_pbm_info *pbm; unsigned int irq; @@ -1505,7 +1505,7 @@ static void __init schizo_register_error_handlers(struct pci_controller_info *p) (SCHIZO_SAFIRQCTRL_EN | (BUS_ERROR_UNMAP))); } -static void __init pbm_config_busmastering(struct pci_pbm_info *pbm) +static void pbm_config_busmastering(struct pci_pbm_info *pbm) { u8 *addr; @@ -1522,8 +1522,8 @@ static void __init pbm_config_busmastering(struct pci_pbm_info *pbm) pci_config_write8(addr, 64); } -static void __init pbm_scan_bus(struct pci_controller_info *p, - struct pci_pbm_info *pbm) +static void pbm_scan_bus(struct pci_controller_info *p, + struct pci_pbm_info *pbm) { struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL); @@ -1550,8 +1550,8 @@ static void __init pbm_scan_bus(struct pci_controller_info *p, pci_setup_busmastering(pbm, pbm->pci_bus); } -static void __init __schizo_scan_bus(struct pci_controller_info *p, - int chip_type) +static void __schizo_scan_bus(struct pci_controller_info *p, + int chip_type) { if (!p->pbm_B.prom_node || !p->pbm_A.prom_node) { printk("PCI: Only one PCI bus module of controller found.\n"); @@ -1577,17 +1577,17 @@ static void __init __schizo_scan_bus(struct pci_controller_info *p, schizo_register_error_handlers(p); } -static void __init schizo_scan_bus(struct pci_controller_info *p) +static void schizo_scan_bus(struct pci_controller_info *p) { __schizo_scan_bus(p, PBM_CHIP_TYPE_SCHIZO); } -static void __init tomatillo_scan_bus(struct pci_controller_info *p) +static void tomatillo_scan_bus(struct pci_controller_info *p) { __schizo_scan_bus(p, PBM_CHIP_TYPE_TOMATILLO); } -static void __init schizo_base_address_update(struct pci_dev *pdev, int resource) +static void schizo_base_address_update(struct pci_dev *pdev, int resource) { struct pcidev_cookie *pcp = pdev->sysdata; struct pci_pbm_info *pbm = pcp->pbm; @@ -1632,9 +1632,9 @@ static void __init schizo_base_address_update(struct pci_dev *pdev, int resource pci_write_config_dword(pdev, where + 4, 0); } -static void __init schizo_resource_adjust(struct pci_dev *pdev, - struct resource *res, - struct resource *root) +static void schizo_resource_adjust(struct pci_dev *pdev, + struct resource *res, + struct resource *root) { res->start += root->start; res->end += root->start; @@ -1702,8 +1702,8 @@ static void schizo_determine_mem_io_space(struct pci_pbm_info *pbm) pbm->mem_space.start); } -static void __init pbm_register_toplevel_resources(struct pci_controller_info *p, - struct pci_pbm_info *pbm) +static void pbm_register_toplevel_resources(struct pci_controller_info *p, + struct pci_pbm_info *pbm) { pbm->io_space.name = pbm->mem_space.name = pbm->name; @@ -1932,7 +1932,7 @@ static void schizo_pbm_iommu_init(struct pci_pbm_info *pbm) #define TOMATILLO_PCI_IOC_TDIAG (0x2250UL) #define TOMATILLO_PCI_IOC_DDIAG (0x2290UL) -static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm) +static void schizo_pbm_hw_init(struct pci_pbm_info *pbm) { u64 tmp; @@ -1986,9 +1986,9 @@ static void __init schizo_pbm_hw_init(struct pci_pbm_info *pbm) } } -static void __init schizo_pbm_init(struct pci_controller_info *p, - int prom_node, u32 portid, - int chip_type) +static void schizo_pbm_init(struct pci_controller_info *p, + int prom_node, u32 portid, + int chip_type) { struct linux_prom64_registers pr_regs[4]; unsigned int busrange[2]; @@ -2145,7 +2145,7 @@ static inline int portid_compare(u32 x, u32 y, int chip_type) return (x == y); } -static void __init __schizo_init(int node, char *model_name, int chip_type) +static void __schizo_init(int node, char *model_name, int chip_type) { struct pci_controller_info *p; struct pci_iommu *iommu; @@ -2213,17 +2213,17 @@ static void __init __schizo_init(int node, char *model_name, int chip_type) schizo_pbm_init(p, node, portid, chip_type); } -void __init schizo_init(int node, char *model_name) +void schizo_init(int node, char *model_name) { __schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO); } -void __init schizo_plus_init(int node, char *model_name) +void schizo_plus_init(int node, char *model_name) { __schizo_init(node, model_name, PBM_CHIP_TYPE_SCHIZO_PLUS); } -void __init tomatillo_init(int node, char *model_name) +void tomatillo_init(int node, char *model_name) { __schizo_init(node, model_name, PBM_CHIP_TYPE_TOMATILLO); } diff --git a/arch/sparc64/kernel/power.c b/arch/sparc64/kernel/power.c index 52f14e399b1c..946cee0257ea 100644 --- a/arch/sparc64/kernel/power.c +++ b/arch/sparc64/kernel/power.c @@ -4,6 +4,8 @@ * Copyright (C) 1999 David S. Miller (davem@redhat.com) */ +#define __KERNEL_SYSCALLS__ + #include <linux/config.h> #include <linux/kernel.h> #include <linux/module.h> @@ -17,7 +19,6 @@ #include <asm/ebus.h> #include <asm/auxio.h> -#define __KERNEL_SYSCALLS__ #include <linux/unistd.h> /* @@ -68,8 +69,6 @@ void machine_power_off(void) machine_halt(); } -EXPORT_SYMBOL(machine_power_off); - #ifdef CONFIG_PCI static int powerd(void *__unused) { diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c index a0cd2b2494d6..7d10b0397091 100644 --- a/arch/sparc64/kernel/process.c +++ b/arch/sparc64/kernel/process.c @@ -103,7 +103,7 @@ void cpu_idle(void) * other cpus see our increasing idleness for the buddy * redistribution algorithm. -DaveM */ - membar("#StoreStore | #StoreLoad"); + membar_storeload_storestore(); } } @@ -124,8 +124,6 @@ void machine_halt(void) panic("Halt failed!"); } -EXPORT_SYMBOL(machine_halt); - void machine_alt_power_off(void) { if (!serial_console && prom_palette) @@ -154,8 +152,6 @@ void machine_restart(char * cmd) panic("Reboot failed!"); } -EXPORT_SYMBOL(machine_restart); - static void show_regwindow32(struct pt_regs *regs) { struct reg_window32 __user *rw; @@ -611,18 +607,13 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp, struct thread_info *t = p->thread_info; char *child_trap_frame; -#ifdef CONFIG_DEBUG_SPINLOCK - p->thread.smp_lock_count = 0; - p->thread.smp_lock_pc = 0; -#endif - /* Calculate offset to stack_frame & pt_regs */ child_trap_frame = ((char *)t) + (THREAD_SIZE - (TRACEREG_SZ+STACKFRAME_SZ)); memcpy(child_trap_frame, (((struct sparc_stackf *)regs)-1), (TRACEREG_SZ+STACKFRAME_SZ)); t->flags = (t->flags & ~((0xffUL << TI_FLAG_CWP_SHIFT) | (0xffUL << TI_FLAG_CURRENT_DS_SHIFT))) | - _TIF_NEWCHILD | (((regs->tstate + 1) & TSTATE_CWP) << TI_FLAG_CWP_SHIFT); + t->new_child = 1; t->ksp = ((unsigned long) child_trap_frame) - STACK_BIAS; t->kregs = (struct pt_regs *)(child_trap_frame+sizeof(struct sparc_stackf)); t->fpsaved[0] = 0; diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index 80a76e2ad732..23ad839d113f 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -19,6 +19,8 @@ #include <linux/smp.h> #include <linux/smp_lock.h> #include <linux/security.h> +#include <linux/seccomp.h> +#include <linux/audit.h> #include <linux/signal.h> #include <asm/asi.h> @@ -628,15 +630,27 @@ out: unlock_kernel(); } -asmlinkage void syscall_trace(void) +asmlinkage void syscall_trace(struct pt_regs *regs, int syscall_exit_p) { -#ifdef DEBUG_PTRACE - printk("%s [%d]: syscall_trace\n", current->comm, current->pid); -#endif - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; + /* do the secure computing check first */ + secure_computing(regs->u_regs[UREG_G1]); + + if (unlikely(current->audit_context) && syscall_exit_p) { + unsigned long tstate = regs->tstate; + int result = AUDITSC_SUCCESS; + + if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) + result = AUDITSC_FAILURE; + + audit_syscall_exit(current, result, regs->u_regs[UREG_I0]); + } + if (!(current->ptrace & PT_PTRACED)) - return; + goto out; + + if (!test_thread_flag(TIF_SYSCALL_TRACE)) + goto out; + ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0)); @@ -645,12 +659,20 @@ asmlinkage void syscall_trace(void) * for normal use. strace only continues with a signal if the * stopping signal is not SIGTRAP. -brl */ -#ifdef DEBUG_PTRACE - printk("%s [%d]: syscall_trace exit= %x\n", current->comm, - current->pid, current->exit_code); -#endif if (current->exit_code) { - send_sig (current->exit_code, current, 1); + send_sig(current->exit_code, current, 1); current->exit_code = 0; } + +out: + if (unlikely(current->audit_context) && !syscall_exit_p) + audit_syscall_entry(current, + (test_thread_flag(TIF_32BIT) ? + AUDIT_ARCH_SPARC : + AUDIT_ARCH_SPARC64), + regs->u_regs[UREG_G1], + regs->u_regs[UREG_I0], + regs->u_regs[UREG_I1], + regs->u_regs[UREG_I2], + regs->u_regs[UREG_I3]); } diff --git a/arch/sparc64/kernel/rtrap.S b/arch/sparc64/kernel/rtrap.S index 0696ed4b9d64..fafd227735fa 100644 --- a/arch/sparc64/kernel/rtrap.S +++ b/arch/sparc64/kernel/rtrap.S @@ -153,11 +153,14 @@ __handle_signal: rtrap_irq: rtrap_clr_l6: clr %l6 rtrap: - ldub [%g6 + TI_CPU], %l0 - sethi %hi(irq_stat), %l2 ! &softirq_active - or %l2, %lo(irq_stat), %l2 ! &softirq_active -irqsz_patchme: sllx %l0, 0, %l0 - lduw [%l2 + %l0], %l1 ! softirq_pending +#ifndef CONFIG_SMP + sethi %hi(per_cpu____cpu_data), %l0 + lduw [%l0 + %lo(per_cpu____cpu_data)], %l1 +#else + sethi %hi(per_cpu____cpu_data), %l0 + or %l0, %lo(per_cpu____cpu_data), %l0 + lduw [%l0 + %g5], %l1 +#endif cmp %l1, 0 /* mm/ultra.S:xcall_report_regs KNOWS about this load. */ diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c index 89f5e019f24c..e09ddf927655 100644 --- a/arch/sparc64/kernel/sbus.c +++ b/arch/sparc64/kernel/sbus.c @@ -147,7 +147,7 @@ static void sbus_strbuf_flush(struct sbus_iommu *iommu, u32 base, unsigned long if (!limit) break; udelay(1); - membar("#LoadLoad"); + rmb(); } if (!limit) printk(KERN_WARNING "sbus_strbuf_flush: flushflag timeout " diff --git a/arch/sparc64/kernel/setup.c b/arch/sparc64/kernel/setup.c index b7e6a91952b2..ddbed3341a23 100644 --- a/arch/sparc64/kernel/setup.c +++ b/arch/sparc64/kernel/setup.c @@ -33,7 +33,6 @@ #include <linux/cpu.h> #include <linux/initrd.h> -#include <asm/segment.h> #include <asm/system.h> #include <asm/io.h> #include <asm/processor.h> @@ -512,18 +511,6 @@ void __init setup_arch(char **cmdline_p) conswitchp = &prom_con; #endif -#ifdef CONFIG_SMP - i = (unsigned long)&irq_stat[1] - (unsigned long)&irq_stat[0]; - if ((i == SMP_CACHE_BYTES) || (i == (2 * SMP_CACHE_BYTES))) { - extern unsigned int irqsz_patchme[1]; - irqsz_patchme[0] |= ((i == SMP_CACHE_BYTES) ? SMP_CACHE_BYTES_SHIFT : \ - SMP_CACHE_BYTES_SHIFT + 1); - flushi((long)&irqsz_patchme[0]); - } else { - prom_printf("Unexpected size of irq_stat[] elements\n"); - prom_halt(); - } -#endif /* Work out if we are starfire early on */ check_if_starfire(); diff --git a/arch/sparc64/kernel/signal.c b/arch/sparc64/kernel/signal.c index b27934671c35..60f5dfabb1e1 100644 --- a/arch/sparc64/kernel/signal.c +++ b/arch/sparc64/kernel/signal.c @@ -574,13 +574,12 @@ static inline void handle_signal(unsigned long signr, struct k_sigaction *ka, { setup_rt_frame(ka, regs, signr, oldset, (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL); - if (!(ka->sa.sa_flags & SA_NOMASK)) { - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NOMASK)) sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); } static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs, diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c index f28428f4170e..aecccd0df1d1 100644 --- a/arch/sparc64/kernel/signal32.c +++ b/arch/sparc64/kernel/signal32.c @@ -877,11 +877,12 @@ static void new_setup_frame32(struct k_sigaction *ka, struct pt_regs *regs, unsigned long page = (unsigned long) page_address(pte_page(*ptep)); - __asm__ __volatile__( - " membar #StoreStore\n" - " flush %0 + %1" - : : "r" (page), "r" (address & (PAGE_SIZE - 1)) - : "memory"); + wmb(); + __asm__ __volatile__("flush %0 + %1" + : /* no outputs */ + : "r" (page), + "r" (address & (PAGE_SIZE - 1)) + : "memory"); } pte_unmap(ptep); preempt_enable(); @@ -1292,11 +1293,12 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs, unsigned long page = (unsigned long) page_address(pte_page(*ptep)); - __asm__ __volatile__( - " membar #StoreStore\n" - " flush %0 + %1" - : : "r" (page), "r" (address & (PAGE_SIZE - 1)) - : "memory"); + wmb(); + __asm__ __volatile__("flush %0 + %1" + : /* no outputs */ + : "r" (page), + "r" (address & (PAGE_SIZE - 1)) + : "memory"); } pte_unmap(ptep); preempt_enable(); @@ -1325,13 +1327,12 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka, else setup_frame32(&ka->sa, regs, signr, oldset, info); } - if (!(ka->sa.sa_flags & SA_NOMASK)) { - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked,¤t->blocked,&ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NOMASK)) sigaddset(¤t->blocked,signr); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); - } + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); } static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs, diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index e5b9c7a27789..b4fc6a5462b2 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -45,8 +45,8 @@ extern void calibrate_delay(void); /* Please don't make this stuff initdata!!! --DaveM */ static unsigned char boot_cpu_id; -cpumask_t cpu_online_map = CPU_MASK_NONE; -cpumask_t phys_cpu_present_map = CPU_MASK_NONE; +cpumask_t cpu_online_map __read_mostly = CPU_MASK_NONE; +cpumask_t phys_cpu_present_map __read_mostly = CPU_MASK_NONE; static cpumask_t smp_commenced_mask; static cpumask_t cpu_callout_map; @@ -137,14 +137,14 @@ void __init smp_callin(void) /* Clear this or we will die instantly when we * schedule back to this idler... */ - clear_thread_flag(TIF_NEWCHILD); + current_thread_info()->new_child = 0; /* Attach to the address space of init_task. */ atomic_inc(&init_mm.mm_count); current->active_mm = &init_mm; while (!cpu_isset(cpuid, smp_commenced_mask)) - membar("#LoadLoad"); + rmb(); cpu_set(cpuid, cpu_online_map); } @@ -155,7 +155,7 @@ void cpu_panic(void) panic("SMP bolixed\n"); } -static unsigned long current_tick_offset; +static unsigned long current_tick_offset __read_mostly; /* This tick register synchronization scheme is taken entirely from * the ia64 port, see arch/ia64/kernel/smpboot.c for details and credit. @@ -184,11 +184,11 @@ static inline long get_delta (long *rt, long *master) for (i = 0; i < NUM_ITERS; i++) { t0 = tick_ops->get_tick(); go[MASTER] = 1; - membar("#StoreLoad"); + membar_storeload(); while (!(tm = go[SLAVE])) - membar("#LoadLoad"); + rmb(); go[SLAVE] = 0; - membar("#StoreStore"); + wmb(); t1 = tick_ops->get_tick(); if (t1 - t0 < best_t1 - best_t0) @@ -221,7 +221,7 @@ void smp_synchronize_tick_client(void) go[MASTER] = 1; while (go[MASTER]) - membar("#LoadLoad"); + rmb(); local_irq_save(flags); { @@ -273,21 +273,21 @@ static void smp_synchronize_one_tick(int cpu) /* wait for client to be ready */ while (!go[MASTER]) - membar("#LoadLoad"); + rmb(); /* now let the client proceed into his loop */ go[MASTER] = 0; - membar("#StoreLoad"); + membar_storeload(); spin_lock_irqsave(&itc_sync_lock, flags); { for (i = 0; i < NUM_ROUNDS*NUM_ITERS; i++) { while (!go[MASTER]) - membar("#LoadLoad"); + rmb(); go[MASTER] = 0; - membar("#StoreStore"); + wmb(); go[SLAVE] = tick_ops->get_tick(); - membar("#StoreLoad"); + membar_storeload(); } } spin_unlock_irqrestore(&itc_sync_lock, flags); @@ -927,11 +927,11 @@ void smp_capture(void) smp_processor_id()); #endif penguins_are_doing_time = 1; - membar("#StoreStore | #LoadStore"); + membar_storestore_loadstore(); atomic_inc(&smp_capture_registry); smp_cross_call(&xcall_capture, 0, 0, 0); while (atomic_read(&smp_capture_registry) != ncpus) - membar("#LoadLoad"); + rmb(); #ifdef CAPTURE_DEBUG printk("done\n"); #endif @@ -947,7 +947,7 @@ void smp_release(void) smp_processor_id()); #endif penguins_are_doing_time = 0; - membar("#StoreStore | #StoreLoad"); + membar_storeload_storestore(); atomic_dec(&smp_capture_registry); } } @@ -970,9 +970,9 @@ void smp_penguin_jailcell(int irq, struct pt_regs *regs) save_alternate_globals(global_save); prom_world(1); atomic_inc(&smp_capture_registry); - membar("#StoreLoad | #StoreStore"); + membar_storeload_storestore(); while (penguins_are_doing_time) - membar("#LoadLoad"); + rmb(); restore_alternate_globals(global_save); atomic_dec(&smp_capture_registry); prom_world(0); @@ -1193,8 +1193,8 @@ void smp_send_stop(void) { } -unsigned long __per_cpu_base; -unsigned long __per_cpu_shift; +unsigned long __per_cpu_base __read_mostly; +unsigned long __per_cpu_shift __read_mostly; EXPORT_SYMBOL(__per_cpu_base); EXPORT_SYMBOL(__per_cpu_shift); diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index 56cd96f4a5cd..cbb5e59824e5 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -79,7 +79,7 @@ extern void linux_sparc_syscall(void); extern void rtrap(void); extern void show_regs(struct pt_regs *); extern void solaris_syscall(void); -extern void syscall_trace(void); +extern void syscall_trace(struct pt_regs *, int); extern u32 sunos_sys_table[], sys_call_table32[]; extern void tl0_solaris(void); extern void sys_sigsuspend(void); @@ -88,8 +88,6 @@ extern int svr4_setcontext(svr4_ucontext_t *uc, struct pt_regs *regs); extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg); extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *); extern long sparc32_open(const char __user * filename, int flags, int mode); -extern int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, - unsigned long offset, unsigned long size, pgprot_t prot, int space); extern int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot); extern void (*prom_palette)(int); @@ -99,17 +97,6 @@ extern int __ashrdi3(int, int); extern void dump_thread(struct pt_regs *, struct user *); extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs); -#if defined(CONFIG_SMP) && defined(CONFIG_DEBUG_SPINLOCK) -extern void _do_spin_lock (spinlock_t *lock, char *str); -extern void _do_spin_unlock (spinlock_t *lock); -extern int _spin_trylock (spinlock_t *lock); -extern void _do_read_lock(rwlock_t *rw, char *str); -extern void _do_read_unlock(rwlock_t *rw, char *str); -extern void _do_write_lock(rwlock_t *rw, char *str); -extern void _do_write_unlock(rwlock_t *rw); -extern int _do_write_trylock(rwlock_t *rw, char *str); -#endif - extern unsigned long phys_base; extern unsigned long pfn_base; @@ -128,17 +115,12 @@ EXPORT_PER_CPU_SYMBOL(__cpu_data); /* used by various drivers */ #ifdef CONFIG_SMP -#ifndef CONFIG_DEBUG_SPINLOCK /* Out of line rw-locking implementation. */ EXPORT_SYMBOL(__read_lock); EXPORT_SYMBOL(__read_unlock); EXPORT_SYMBOL(__write_lock); EXPORT_SYMBOL(__write_unlock); EXPORT_SYMBOL(__write_trylock); -/* Out of line spin-locking implementation. */ -EXPORT_SYMBOL(_raw_spin_lock); -EXPORT_SYMBOL(_raw_spin_lock_flags); -#endif /* Hard IRQ locking */ EXPORT_SYMBOL(synchronize_irq); @@ -152,18 +134,6 @@ EXPORT_SYMBOL(_mcount); EXPORT_SYMBOL(cpu_online_map); EXPORT_SYMBOL(phys_cpu_present_map); -/* Spinlock debugging library, optional. */ -#ifdef CONFIG_DEBUG_SPINLOCK -EXPORT_SYMBOL(_do_spin_lock); -EXPORT_SYMBOL(_do_spin_unlock); -EXPORT_SYMBOL(_spin_trylock); -EXPORT_SYMBOL(_do_read_lock); -EXPORT_SYMBOL(_do_read_unlock); -EXPORT_SYMBOL(_do_write_lock); -EXPORT_SYMBOL(_do_write_unlock); -EXPORT_SYMBOL(_do_write_trylock); -#endif - EXPORT_SYMBOL(smp_call_function); #endif /* CONFIG_SMP */ @@ -268,7 +238,6 @@ EXPORT_SYMBOL(pci_dma_supported); #endif /* I/O device mmaping on Sparc64. */ -EXPORT_SYMBOL(io_remap_page_range); EXPORT_SYMBOL(io_remap_pfn_range); /* Solaris/SunOS binary compatibility */ diff --git a/arch/sparc64/kernel/sunos_ioctl32.c b/arch/sparc64/kernel/sunos_ioctl32.c index 87c1aeb02220..7654b8a7f03a 100644 --- a/arch/sparc64/kernel/sunos_ioctl32.c +++ b/arch/sparc64/kernel/sunos_ioctl32.c @@ -152,11 +152,12 @@ asmlinkage int sunos_ioctl (int fd, u32 cmd, u32 arg) ret = compat_sys_ioctl(fd, SIOCGIFCONF, arg); goto out; - case _IOW('i', 21, struct ifreq): /* SIOCSIFMTU */ - ret = sys_ioctl(fd, SIOCSIFMTU, arg); + case _IOW('i', 21, struct ifreq32): + ret = compat_sys_ioctl(fd, SIOCSIFMTU, arg); goto out; - case _IOWR('i', 22, struct ifreq): /* SIOCGIFMTU */ - ret = sys_ioctl(fd, SIOCGIFMTU, arg); + + case _IOWR('i', 22, struct ifreq32): + ret = compat_sys_ioctl(fd, SIOCGIFMTU, arg); goto out; case _IOWR('i', 23, struct ifreq32): diff --git a/arch/sparc64/kernel/sys32.S b/arch/sparc64/kernel/sys32.S index 5a95e98c5317..5f9e4fae612e 100644 --- a/arch/sparc64/kernel/sys32.S +++ b/arch/sparc64/kernel/sys32.S @@ -135,6 +135,8 @@ SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1) SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2) SIGN1(sys32_getpeername, sys_getpeername, %o0) SIGN1(sys32_getsockname, sys_getsockname, %o0) +SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) +SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) .globl sys32_mmap2 sys32_mmap2: diff --git a/arch/sparc64/kernel/sys_sparc32.c b/arch/sparc64/kernel/sys_sparc32.c index 1d3aa588df8a..7f6239ed2521 100644 --- a/arch/sparc64/kernel/sys_sparc32.c +++ b/arch/sparc64/kernel/sys_sparc32.c @@ -1002,29 +1002,7 @@ asmlinkage long sys32_adjtimex(struct timex32 __user *utp) asmlinkage long sparc32_open(const char __user *filename, int flags, int mode) { - char * tmp; - int fd, error; - - tmp = getname(filename); - fd = PTR_ERR(tmp); - if (!IS_ERR(tmp)) { - fd = get_unused_fd(); - if (fd >= 0) { - struct file * f = filp_open(tmp, flags, mode); - error = PTR_ERR(f); - if (IS_ERR(f)) - goto out_error; - fd_install(fd, f); - } -out: - putname(tmp); - } - return fd; - -out_error: - put_unused_fd(fd); - fd = error; - goto out; + return do_sys_open(filename, flags, mode); } extern unsigned long do_mremap(unsigned long addr, diff --git a/arch/sparc64/kernel/systbls.S b/arch/sparc64/kernel/systbls.S index a5e36a4c8924..53eaf2345fe9 100644 --- a/arch/sparc64/kernel/systbls.S +++ b/arch/sparc64/kernel/systbls.S @@ -50,8 +50,8 @@ sys_call_table32: .word sys_nis_syscall, sys32_mkdir, sys_rmdir, sys32_utimes, compat_sys_stat64 /*140*/ .word sys32_sendfile64, sys_nis_syscall, sys32_futex, sys_gettid, compat_sys_getrlimit .word compat_sys_setrlimit, sys_pivot_root, sys32_prctl, sys_pciconfig_read, sys_pciconfig_write -/*150*/ .word sys_nis_syscall, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_getdents64 - .word compat_sys_fcntl64, sys_ni_syscall, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount +/*150*/ .word sys_nis_syscall, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 + .word compat_sys_fcntl64, sys_inotify_rm_watch, compat_sys_statfs, compat_sys_fstatfs, sys_oldumount /*160*/ .word compat_sys_sched_setaffinity, compat_sys_sched_getaffinity, sys32_getdomainname, sys32_setdomainname, sys_nis_syscall .word sys_quotactl, sys_set_tid_address, compat_sys_mount, sys_ustat, sys32_setxattr /*170*/ .word sys32_lsetxattr, sys32_fsetxattr, sys_getxattr, sys_lgetxattr, compat_sys_getdents @@ -59,11 +59,11 @@ sys_call_table32: /*180*/ .word sys32_flistxattr, sys_removexattr, sys_lremovexattr, compat_sys_sigpending, sys_ni_syscall .word sys32_setpgid, sys32_fremovexattr, sys32_tkill, sys32_exit_group, sparc64_newuname /*190*/ .word sys32_init_module, sparc64_personality, sys_remap_file_pages, sys32_epoll_create, sys32_epoll_ctl - .word sys32_epoll_wait, sys_nis_syscall, sys_getppid, sys32_sigaction, sys_sgetmask + .word sys32_epoll_wait, sys32_ioprio_set, sys_getppid, sys32_sigaction, sys_sgetmask /*200*/ .word sys32_ssetmask, sys_sigsuspend, compat_sys_newlstat, sys_uselib, compat_sys_old_readdir .word sys32_readahead, sys32_socketcall, sys32_syslog, sys32_lookup_dcookie, sys32_fadvise64 /*210*/ .word sys32_fadvise64_64, sys32_tgkill, sys32_waitpid, sys_swapoff, sys32_sysinfo - .word sys32_ipc, sys32_sigreturn, sys_clone, sys_nis_syscall, sys32_adjtimex + .word sys32_ipc, sys32_sigreturn, sys_clone, sys32_ioprio_get, sys32_adjtimex /*220*/ .word sys32_sigprocmask, sys_ni_syscall, sys32_delete_module, sys_ni_syscall, sys32_getpgid .word sys32_bdflush, sys32_sysfs, sys_nis_syscall, sys32_setfsuid16, sys32_setfsgid16 /*230*/ .word sys32_select, compat_sys_time, sys_nis_syscall, compat_sys_stime, compat_sys_statfs64 @@ -116,8 +116,8 @@ sys_call_table: .word sys_socketpair, sys_mkdir, sys_rmdir, sys_utimes, sys_stat64 /*140*/ .word sys_sendfile64, sys_getpeername, sys_futex, sys_gettid, sys_getrlimit .word sys_setrlimit, sys_pivot_root, sys_prctl, sys_pciconfig_read, sys_pciconfig_write -/*150*/ .word sys_getsockname, sys_nis_syscall, sys_nis_syscall, sys_poll, sys_getdents64 - .word sys_nis_syscall, sys_ni_syscall, sys_statfs, sys_fstatfs, sys_oldumount +/*150*/ .word sys_getsockname, sys_inotify_init, sys_inotify_add_watch, sys_poll, sys_getdents64 + .word sys_nis_syscall, sys_inotify_rm_watch, sys_statfs, sys_fstatfs, sys_oldumount /*160*/ .word sys_sched_setaffinity, sys_sched_getaffinity, sys_getdomainname, sys_setdomainname, sys_utrap_install .word sys_quotactl, sys_set_tid_address, sys_mount, sys_ustat, sys_setxattr /*170*/ .word sys_lsetxattr, sys_fsetxattr, sys_getxattr, sys_lgetxattr, sys_getdents @@ -125,11 +125,11 @@ sys_call_table: /*180*/ .word sys_flistxattr, sys_removexattr, sys_lremovexattr, sys_nis_syscall, sys_ni_syscall .word sys_setpgid, sys_fremovexattr, sys_tkill, sys_exit_group, sparc64_newuname /*190*/ .word sys_init_module, sparc64_personality, sys_remap_file_pages, sys_epoll_create, sys_epoll_ctl - .word sys_epoll_wait, sys_nis_syscall, sys_getppid, sys_nis_syscall, sys_sgetmask + .word sys_epoll_wait, sys_ioprio_set, sys_getppid, sys_nis_syscall, sys_sgetmask /*200*/ .word sys_ssetmask, sys_nis_syscall, sys_newlstat, sys_uselib, sys_nis_syscall .word sys_readahead, sys_socketcall, sys_syslog, sys_lookup_dcookie, sys_fadvise64 /*210*/ .word sys_fadvise64_64, sys_tgkill, sys_waitpid, sys_swapoff, sys_sysinfo - .word sys_ipc, sys_nis_syscall, sys_clone, sys_nis_syscall, sys_adjtimex + .word sys_ipc, sys_nis_syscall, sys_clone, sys_ioprio_get, sys_adjtimex /*220*/ .word sys_nis_syscall, sys_ni_syscall, sys_delete_module, sys_ni_syscall, sys_getpgid .word sys_bdflush, sys_sysfs, sys_nis_syscall, sys_setfsuid, sys_setfsgid /*230*/ .word sys_select, sys_nis_syscall, sys_nis_syscall, sys_stime, sys_statfs64 diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c index b40db389f90b..3f08a32f51a1 100644 --- a/arch/sparc64/kernel/time.c +++ b/arch/sparc64/kernel/time.c @@ -73,7 +73,7 @@ static __initdata struct sparc64_tick_ops dummy_tick_ops = { .get_tick = dummy_get_tick, }; -struct sparc64_tick_ops *tick_ops = &dummy_tick_ops; +struct sparc64_tick_ops *tick_ops __read_mostly = &dummy_tick_ops; #define TICK_PRIV_BIT (1UL << 63) @@ -195,7 +195,7 @@ static unsigned long tick_add_tick(unsigned long adj, unsigned long offset) return new_tick; } -static struct sparc64_tick_ops tick_operations = { +static struct sparc64_tick_ops tick_operations __read_mostly = { .init_tick = tick_init_tick, .get_tick = tick_get_tick, .get_compare = tick_get_compare, @@ -276,7 +276,7 @@ static unsigned long stick_add_compare(unsigned long adj) return new_compare; } -static struct sparc64_tick_ops stick_operations = { +static struct sparc64_tick_ops stick_operations __read_mostly = { .init_tick = stick_init_tick, .get_tick = stick_get_tick, .get_compare = stick_get_compare, @@ -422,7 +422,7 @@ static unsigned long hbtick_add_compare(unsigned long adj) return val; } -static struct sparc64_tick_ops hbtick_operations = { +static struct sparc64_tick_ops hbtick_operations __read_mostly = { .init_tick = hbtick_init_tick, .get_tick = hbtick_get_tick, .get_compare = hbtick_get_compare, @@ -437,10 +437,9 @@ static struct sparc64_tick_ops hbtick_operations = { * NOTE: On SUN5 systems the ticker interrupt comes in using 2 * interrupts, one at level14 and one with softint bit 0. */ -unsigned long timer_tick_offset; -unsigned long timer_tick_compare; +unsigned long timer_tick_offset __read_mostly; -static unsigned long timer_ticks_per_nsec_quotient; +static unsigned long timer_ticks_per_nsec_quotient __read_mostly; #define TICK_SIZE (tick_nsec / 1000) @@ -450,7 +449,7 @@ static inline void timer_check_rtc(void) static long last_rtc_update; /* Determine when to update the Mostek clock. */ - if ((time_status & STA_UNSYNC) == 0 && + if (ntp_synced() && xtime.tv_sec > last_rtc_update + 660 && (xtime.tv_nsec / 1000) >= 500000 - ((unsigned) TICK_SIZE) / 2 && (xtime.tv_nsec / 1000) <= 500000 + ((unsigned) TICK_SIZE) / 2) { @@ -464,7 +463,7 @@ static inline void timer_check_rtc(void) static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs) { - unsigned long ticks, pstate; + unsigned long ticks, compare, pstate; write_seqlock(&xtime_lock); @@ -483,14 +482,14 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id, struct pt_regs * regs) : "=r" (pstate) : "i" (PSTATE_IE)); - timer_tick_compare = tick_ops->add_compare(timer_tick_offset); + compare = tick_ops->add_compare(timer_tick_offset); ticks = tick_ops->get_tick(); /* Restore PSTATE_IE. */ __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : /* no outputs */ : "r" (pstate)); - } while (time_after_eq(ticks, timer_tick_compare)); + } while (time_after_eq(ticks, compare)); timer_check_rtc(); @@ -506,11 +505,6 @@ void timer_tick_interrupt(struct pt_regs *regs) do_timer(regs); - /* - * Only keep timer_tick_offset uptodate, but don't set TICK_CMPR. - */ - timer_tick_compare = tick_ops->get_compare() + timer_tick_offset; - timer_check_rtc(); write_sequnlock(&xtime_lock); diff --git a/arch/sparc64/kernel/traps.c b/arch/sparc64/kernel/traps.c index a9f4596d7c2b..b280b2ef674f 100644 --- a/arch/sparc64/kernel/traps.c +++ b/arch/sparc64/kernel/traps.c @@ -33,6 +33,7 @@ #include <asm/dcu.h> #include <asm/estate.h> #include <asm/chafsr.h> +#include <asm/sfafsr.h> #include <asm/psrcompat.h> #include <asm/processor.h> #include <asm/timer.h> @@ -143,8 +144,7 @@ void do_BUG(const char *file, int line) } #endif -void instruction_access_exception(struct pt_regs *regs, - unsigned long sfsr, unsigned long sfar) +void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) { siginfo_t info; @@ -153,8 +153,8 @@ void instruction_access_exception(struct pt_regs *regs, return; if (regs->tstate & TSTATE_PRIV) { - printk("instruction_access_exception: SFSR[%016lx] SFAR[%016lx], going.\n", - sfsr, sfar); + printk("spitfire_insn_access_exception: SFSR[%016lx] " + "SFAR[%016lx], going.\n", sfsr, sfar); die_if_kernel("Iax", regs); } if (test_thread_flag(TIF_32BIT)) { @@ -169,19 +169,17 @@ void instruction_access_exception(struct pt_regs *regs, force_sig_info(SIGSEGV, &info, current); } -void instruction_access_exception_tl1(struct pt_regs *regs, - unsigned long sfsr, unsigned long sfar) +void spitfire_insn_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) { if (notify_die(DIE_TRAP_TL1, "instruction access exception tl1", regs, 0, 0x8, SIGTRAP) == NOTIFY_STOP) return; dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - instruction_access_exception(regs, sfsr, sfar); + spitfire_insn_access_exception(regs, sfsr, sfar); } -void data_access_exception(struct pt_regs *regs, - unsigned long sfsr, unsigned long sfar) +void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) { siginfo_t info; @@ -207,8 +205,8 @@ void data_access_exception(struct pt_regs *regs, return; } /* Shit... */ - printk("data_access_exception: SFSR[%016lx] SFAR[%016lx], going.\n", - sfsr, sfar); + printk("spitfire_data_access_exception: SFSR[%016lx] " + "SFAR[%016lx], going.\n", sfsr, sfar); die_if_kernel("Dax", regs); } @@ -220,6 +218,16 @@ void data_access_exception(struct pt_regs *regs, force_sig_info(SIGSEGV, &info, current); } +void spitfire_data_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar) +{ + if (notify_die(DIE_TRAP_TL1, "data access exception tl1", regs, + 0, 0x30, SIGTRAP) == NOTIFY_STOP) + return; + + dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); + spitfire_data_access_exception(regs, sfsr, sfar); +} + #ifdef CONFIG_PCI /* This is really pathetic... */ extern volatile int pci_poke_in_progress; @@ -253,54 +261,13 @@ static void spitfire_clean_and_reenable_l1_caches(void) : "memory"); } -void do_iae(struct pt_regs *regs) +static void spitfire_enable_estate_errors(void) { - siginfo_t info; - - spitfire_clean_and_reenable_l1_caches(); - - if (notify_die(DIE_TRAP, "instruction access exception", regs, - 0, 0x8, SIGTRAP) == NOTIFY_STOP) - return; - - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_OBJERR; - info.si_addr = (void *)0; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); -} - -void do_dae(struct pt_regs *regs) -{ - siginfo_t info; - -#ifdef CONFIG_PCI - if (pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) { - spitfire_clean_and_reenable_l1_caches(); - - pci_poke_faulted = 1; - - /* Why the fuck did they have to change this? */ - if (tlb_type == cheetah || tlb_type == cheetah_plus) - regs->tpc += 4; - - regs->tnpc = regs->tpc + 4; - return; - } -#endif - spitfire_clean_and_reenable_l1_caches(); - - if (notify_die(DIE_TRAP, "data access exception", regs, - 0, 0x30, SIGTRAP) == NOTIFY_STOP) - return; - - info.si_signo = SIGBUS; - info.si_errno = 0; - info.si_code = BUS_OBJERR; - info.si_addr = (void *)0; - info.si_trapno = 0; - force_sig_info(SIGBUS, &info, current); + __asm__ __volatile__("stxa %0, [%%g0] %1\n\t" + "membar #Sync" + : /* no outputs */ + : "r" (ESTATE_ERR_ALL), + "i" (ASI_ESTATE_ERROR_EN)); } static char ecc_syndrome_table[] = { @@ -338,65 +305,15 @@ static char ecc_syndrome_table[] = { 0x0b, 0x48, 0x48, 0x4b, 0x48, 0x4b, 0x4b, 0x4a }; -/* cee_trap in entry.S encodes AFSR/UDBH/UDBL error status - * in the following format. The AFAR is left as is, with - * reserved bits cleared, and is a raw 40-bit physical - * address. - */ -#define CE_STATUS_UDBH_UE (1UL << (43 + 9)) -#define CE_STATUS_UDBH_CE (1UL << (43 + 8)) -#define CE_STATUS_UDBH_ESYNDR (0xffUL << 43) -#define CE_STATUS_UDBH_SHIFT 43 -#define CE_STATUS_UDBL_UE (1UL << (33 + 9)) -#define CE_STATUS_UDBL_CE (1UL << (33 + 8)) -#define CE_STATUS_UDBL_ESYNDR (0xffUL << 33) -#define CE_STATUS_UDBL_SHIFT 33 -#define CE_STATUS_AFSR_MASK (0x1ffffffffUL) -#define CE_STATUS_AFSR_ME (1UL << 32) -#define CE_STATUS_AFSR_PRIV (1UL << 31) -#define CE_STATUS_AFSR_ISAP (1UL << 30) -#define CE_STATUS_AFSR_ETP (1UL << 29) -#define CE_STATUS_AFSR_IVUE (1UL << 28) -#define CE_STATUS_AFSR_TO (1UL << 27) -#define CE_STATUS_AFSR_BERR (1UL << 26) -#define CE_STATUS_AFSR_LDP (1UL << 25) -#define CE_STATUS_AFSR_CP (1UL << 24) -#define CE_STATUS_AFSR_WP (1UL << 23) -#define CE_STATUS_AFSR_EDP (1UL << 22) -#define CE_STATUS_AFSR_UE (1UL << 21) -#define CE_STATUS_AFSR_CE (1UL << 20) -#define CE_STATUS_AFSR_ETS (0xfUL << 16) -#define CE_STATUS_AFSR_ETS_SHIFT 16 -#define CE_STATUS_AFSR_PSYND (0xffffUL << 0) -#define CE_STATUS_AFSR_PSYND_SHIFT 0 - -/* Layout of Ecache TAG Parity Syndrome of AFSR */ -#define AFSR_ETSYNDROME_7_0 0x1UL /* E$-tag bus bits <7:0> */ -#define AFSR_ETSYNDROME_15_8 0x2UL /* E$-tag bus bits <15:8> */ -#define AFSR_ETSYNDROME_21_16 0x4UL /* E$-tag bus bits <21:16> */ -#define AFSR_ETSYNDROME_24_22 0x8UL /* E$-tag bus bits <24:22> */ - static char *syndrome_unknown = "<Unknown>"; -asmlinkage void cee_log(unsigned long ce_status, - unsigned long afar, - struct pt_regs *regs) +static void spitfire_log_udb_syndrome(unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long bit) { - char memmod_str[64]; - char *p; - unsigned short scode, udb_reg; + unsigned short scode; + char memmod_str[64], *p; - printk(KERN_WARNING "CPU[%d]: Correctable ECC Error " - "AFSR[%lx] AFAR[%016lx] UDBL[%lx] UDBH[%lx]\n", - smp_processor_id(), - (ce_status & CE_STATUS_AFSR_MASK), - afar, - ((ce_status >> CE_STATUS_UDBL_SHIFT) & 0x3ffUL), - ((ce_status >> CE_STATUS_UDBH_SHIFT) & 0x3ffUL)); - - udb_reg = ((ce_status >> CE_STATUS_UDBL_SHIFT) & 0x3ffUL); - if (udb_reg & (1 << 8)) { - scode = ecc_syndrome_table[udb_reg & 0xff]; + if (udbl & bit) { + scode = ecc_syndrome_table[udbl & 0xff]; if (prom_getunumber(scode, afar, memmod_str, sizeof(memmod_str)) == -1) p = syndrome_unknown; @@ -407,9 +324,8 @@ asmlinkage void cee_log(unsigned long ce_status, smp_processor_id(), scode, p); } - udb_reg = ((ce_status >> CE_STATUS_UDBH_SHIFT) & 0x3ffUL); - if (udb_reg & (1 << 8)) { - scode = ecc_syndrome_table[udb_reg & 0xff]; + if (udbh & bit) { + scode = ecc_syndrome_table[udbh & 0xff]; if (prom_getunumber(scode, afar, memmod_str, sizeof(memmod_str)) == -1) p = syndrome_unknown; @@ -419,6 +335,127 @@ asmlinkage void cee_log(unsigned long ce_status, "Memory Module \"%s\"\n", smp_processor_id(), scode, p); } + +} + +static void spitfire_cee_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, int tl1, struct pt_regs *regs) +{ + + printk(KERN_WARNING "CPU[%d]: Correctable ECC Error " + "AFSR[%lx] AFAR[%016lx] UDBL[%lx] UDBH[%lx] TL>1[%d]\n", + smp_processor_id(), afsr, afar, udbl, udbh, tl1); + + spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_CE); + + /* We always log it, even if someone is listening for this + * trap. + */ + notify_die(DIE_TRAP, "Correctable ECC Error", regs, + 0, TRAP_TYPE_CEE, SIGTRAP); + + /* The Correctable ECC Error trap does not disable I/D caches. So + * we only have to restore the ESTATE Error Enable register. + */ + spitfire_enable_estate_errors(); +} + +static void spitfire_ue_log(unsigned long afsr, unsigned long afar, unsigned long udbh, unsigned long udbl, unsigned long tt, int tl1, struct pt_regs *regs) +{ + siginfo_t info; + + printk(KERN_WARNING "CPU[%d]: Uncorrectable Error AFSR[%lx] " + "AFAR[%lx] UDBL[%lx] UDBH[%ld] TT[%lx] TL>1[%d]\n", + smp_processor_id(), afsr, afar, udbl, udbh, tt, tl1); + + /* XXX add more human friendly logging of the error status + * XXX as is implemented for cheetah + */ + + spitfire_log_udb_syndrome(afar, udbh, udbl, UDBE_UE); + + /* We always log it, even if someone is listening for this + * trap. + */ + notify_die(DIE_TRAP, "Uncorrectable Error", regs, + 0, tt, SIGTRAP); + + if (regs->tstate & TSTATE_PRIV) { + if (tl1) + dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); + die_if_kernel("UE", regs); + } + + /* XXX need more intelligent processing here, such as is implemented + * XXX for cheetah errors, in fact if the E-cache still holds the + * XXX line with bad parity this will loop + */ + + spitfire_clean_and_reenable_l1_caches(); + spitfire_enable_estate_errors(); + + if (test_thread_flag(TIF_32BIT)) { + regs->tpc &= 0xffffffff; + regs->tnpc &= 0xffffffff; + } + info.si_signo = SIGBUS; + info.si_errno = 0; + info.si_code = BUS_OBJERR; + info.si_addr = (void *)0; + info.si_trapno = 0; + force_sig_info(SIGBUS, &info, current); +} + +void spitfire_access_error(struct pt_regs *regs, unsigned long status_encoded, unsigned long afar) +{ + unsigned long afsr, tt, udbh, udbl; + int tl1; + + afsr = (status_encoded & SFSTAT_AFSR_MASK) >> SFSTAT_AFSR_SHIFT; + tt = (status_encoded & SFSTAT_TRAP_TYPE) >> SFSTAT_TRAP_TYPE_SHIFT; + tl1 = (status_encoded & SFSTAT_TL_GT_ONE) ? 1 : 0; + udbl = (status_encoded & SFSTAT_UDBL_MASK) >> SFSTAT_UDBL_SHIFT; + udbh = (status_encoded & SFSTAT_UDBH_MASK) >> SFSTAT_UDBH_SHIFT; + +#ifdef CONFIG_PCI + if (tt == TRAP_TYPE_DAE && + pci_poke_in_progress && pci_poke_cpu == smp_processor_id()) { + spitfire_clean_and_reenable_l1_caches(); + spitfire_enable_estate_errors(); + + pci_poke_faulted = 1; + regs->tnpc = regs->tpc + 4; + return; + } +#endif + + if (afsr & SFAFSR_UE) + spitfire_ue_log(afsr, afar, udbh, udbl, tt, tl1, regs); + + if (tt == TRAP_TYPE_CEE) { + /* Handle the case where we took a CEE trap, but ACK'd + * only the UE state in the UDB error registers. + */ + if (afsr & SFAFSR_UE) { + if (udbh & UDBE_CE) { + __asm__ __volatile__( + "stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* no outputs */ + : "r" (udbh & UDBE_CE), + "r" (0x0), "i" (ASI_UDB_ERROR_W)); + } + if (udbl & UDBE_CE) { + __asm__ __volatile__( + "stxa %0, [%1] %2\n\t" + "membar #Sync" + : /* no outputs */ + : "r" (udbl & UDBE_CE), + "r" (0x18), "i" (ASI_UDB_ERROR_W)); + } + } + + spitfire_cee_log(afsr, afar, udbh, udbl, tl1, regs); + } } int cheetah_pcache_forced_on; @@ -2125,6 +2162,11 @@ void __init trap_init(void) TI_PCR != offsetof(struct thread_info, pcr_reg) || TI_CEE_STUFF != offsetof(struct thread_info, cee_stuff) || TI_PRE_COUNT != offsetof(struct thread_info, preempt_count) || + TI_NEW_CHILD != offsetof(struct thread_info, new_child) || + TI_SYS_NOERROR != offsetof(struct thread_info, syscall_noerror) || + TI_RESTART_BLOCK != offsetof(struct thread_info, restart_block) || + TI_KUNA_REGS != offsetof(struct thread_info, kern_una_regs) || + TI_KUNA_INSN != offsetof(struct thread_info, kern_una_insn) || TI_FPREGS != offsetof(struct thread_info, fpregs) || (TI_FPREGS & (64 - 1))) thread_info_offsets_are_bolixed_dave(); diff --git a/arch/sparc64/kernel/ttable.S b/arch/sparc64/kernel/ttable.S index 491bb3681f9d..8365bc1f81f3 100644 --- a/arch/sparc64/kernel/ttable.S +++ b/arch/sparc64/kernel/ttable.S @@ -18,9 +18,10 @@ sparc64_ttable_tl0: tl0_resv000: BOOT_KERNEL BTRAP(0x1) BTRAP(0x2) BTRAP(0x3) tl0_resv004: BTRAP(0x4) BTRAP(0x5) BTRAP(0x6) BTRAP(0x7) tl0_iax: membar #Sync - TRAP_NOSAVE_7INSNS(__do_instruction_access_exception) + TRAP_NOSAVE_7INSNS(__spitfire_insn_access_exception) tl0_resv009: BTRAP(0x9) -tl0_iae: TRAP(do_iae) +tl0_iae: membar #Sync + TRAP_NOSAVE_7INSNS(__spitfire_access_error) tl0_resv00b: BTRAP(0xb) BTRAP(0xc) BTRAP(0xd) BTRAP(0xe) BTRAP(0xf) tl0_ill: membar #Sync TRAP_7INSNS(do_illegal_instruction) @@ -36,9 +37,10 @@ tl0_cwin: CLEAN_WINDOW tl0_div0: TRAP(do_div0) tl0_resv029: BTRAP(0x29) BTRAP(0x2a) BTRAP(0x2b) BTRAP(0x2c) BTRAP(0x2d) BTRAP(0x2e) tl0_resv02f: BTRAP(0x2f) -tl0_dax: TRAP_NOSAVE(__do_data_access_exception) +tl0_dax: TRAP_NOSAVE(__spitfire_data_access_exception) tl0_resv031: BTRAP(0x31) -tl0_dae: TRAP(do_dae) +tl0_dae: membar #Sync + TRAP_NOSAVE_7INSNS(__spitfire_access_error) tl0_resv033: BTRAP(0x33) tl0_mna: TRAP_NOSAVE(do_mna) tl0_lddfmna: TRAP_NOSAVE(do_lddfmna) @@ -73,7 +75,8 @@ tl0_resv05c: BTRAP(0x5c) BTRAP(0x5d) BTRAP(0x5e) BTRAP(0x5f) tl0_ivec: TRAP_IVEC tl0_paw: TRAP(do_paw) tl0_vaw: TRAP(do_vaw) -tl0_cee: TRAP_NOSAVE(cee_trap) +tl0_cee: membar #Sync + TRAP_NOSAVE_7INSNS(__spitfire_cee_trap) tl0_iamiss: #include "itlb_base.S" tl0_damiss: @@ -175,9 +178,10 @@ tl0_resv1f0: BTRAPS(0x1f0) BTRAPS(0x1f8) sparc64_ttable_tl1: tl1_resv000: BOOT_KERNEL BTRAPTL1(0x1) BTRAPTL1(0x2) BTRAPTL1(0x3) tl1_resv004: BTRAPTL1(0x4) BTRAPTL1(0x5) BTRAPTL1(0x6) BTRAPTL1(0x7) -tl1_iax: TRAP_NOSAVE(__do_instruction_access_exception_tl1) +tl1_iax: TRAP_NOSAVE(__spitfire_insn_access_exception_tl1) tl1_resv009: BTRAPTL1(0x9) -tl1_iae: TRAPTL1(do_iae_tl1) +tl1_iae: membar #Sync + TRAP_NOSAVE_7INSNS(__spitfire_access_error) tl1_resv00b: BTRAPTL1(0xb) BTRAPTL1(0xc) BTRAPTL1(0xd) BTRAPTL1(0xe) BTRAPTL1(0xf) tl1_ill: TRAPTL1(do_ill_tl1) tl1_privop: BTRAPTL1(0x11) @@ -193,9 +197,10 @@ tl1_cwin: CLEAN_WINDOW tl1_div0: TRAPTL1(do_div0_tl1) tl1_resv029: BTRAPTL1(0x29) BTRAPTL1(0x2a) BTRAPTL1(0x2b) BTRAPTL1(0x2c) tl1_resv02d: BTRAPTL1(0x2d) BTRAPTL1(0x2e) BTRAPTL1(0x2f) -tl1_dax: TRAP_NOSAVE(__do_data_access_exception_tl1) +tl1_dax: TRAP_NOSAVE(__spitfire_data_access_exception_tl1) tl1_resv031: BTRAPTL1(0x31) -tl1_dae: TRAPTL1(do_dae_tl1) +tl1_dae: membar #Sync + TRAP_NOSAVE_7INSNS(__spitfire_access_error) tl1_resv033: BTRAPTL1(0x33) tl1_mna: TRAP_NOSAVE(do_mna) tl1_lddfmna: TRAPTL1(do_lddfmna_tl1) @@ -219,8 +224,8 @@ tl1_paw: TRAPTL1(do_paw_tl1) tl1_vaw: TRAPTL1(do_vaw_tl1) /* The grotty trick to save %g1 into current->thread.cee_stuff - * is because when we take this trap we could be interrupting trap - * code already using the trap alternate global registers. + * is because when we take this trap we could be interrupting + * trap code already using the trap alternate global registers. * * We cross our fingers and pray that this store/load does * not cause yet another CEE trap. diff --git a/arch/sparc64/kernel/una_asm.S b/arch/sparc64/kernel/una_asm.S new file mode 100644 index 000000000000..cbb40585253c --- /dev/null +++ b/arch/sparc64/kernel/una_asm.S @@ -0,0 +1,153 @@ +/* una_asm.S: Kernel unaligned trap assembler helpers. + * + * Copyright (C) 1996,2005 David S. Miller (davem@davemloft.net) + * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz) + */ + + .text + +kernel_unaligned_trap_fault: + call kernel_mna_trap_fault + nop + retl + nop + .size kern_unaligned_trap_fault, .-kern_unaligned_trap_fault + + .globl __do_int_store +__do_int_store: + rd %asi, %o4 + wr %o3, 0, %asi + ldx [%o2], %g3 + cmp %o1, 2 + be,pn %icc, 2f + cmp %o1, 4 + be,pt %icc, 1f + srlx %g3, 24, %g2 + srlx %g3, 56, %g1 + srlx %g3, 48, %g7 +4: stba %g1, [%o0] %asi + srlx %g3, 40, %g1 +5: stba %g7, [%o0 + 1] %asi + srlx %g3, 32, %g7 +6: stba %g1, [%o0 + 2] %asi +7: stba %g7, [%o0 + 3] %asi + srlx %g3, 16, %g1 +8: stba %g2, [%o0 + 4] %asi + srlx %g3, 8, %g7 +9: stba %g1, [%o0 + 5] %asi +10: stba %g7, [%o0 + 6] %asi + ba,pt %xcc, 0f +11: stba %g3, [%o0 + 7] %asi +1: srl %g3, 16, %g7 +12: stba %g2, [%o0] %asi + srl %g3, 8, %g2 +13: stba %g7, [%o0 + 1] %asi +14: stba %g2, [%o0 + 2] %asi + ba,pt %xcc, 0f +15: stba %g3, [%o0 + 3] %asi +2: srl %g3, 8, %g2 +16: stba %g2, [%o0] %asi +17: stba %g3, [%o0 + 1] %asi +0: + wr %o4, 0x0, %asi + retl + nop + .size __do_int_store, .-__do_int_store + + .section __ex_table + .word 4b, kernel_unaligned_trap_fault + .word 5b, kernel_unaligned_trap_fault + .word 6b, kernel_unaligned_trap_fault + .word 7b, kernel_unaligned_trap_fault + .word 8b, kernel_unaligned_trap_fault + .word 9b, kernel_unaligned_trap_fault + .word 10b, kernel_unaligned_trap_fault + .word 11b, kernel_unaligned_trap_fault + .word 12b, kernel_unaligned_trap_fault + .word 13b, kernel_unaligned_trap_fault + .word 14b, kernel_unaligned_trap_fault + .word 15b, kernel_unaligned_trap_fault + .word 16b, kernel_unaligned_trap_fault + .word 17b, kernel_unaligned_trap_fault + .previous + + .globl do_int_load +do_int_load: + rd %asi, %o5 + wr %o4, 0, %asi + cmp %o1, 8 + bge,pn %icc, 9f + cmp %o1, 4 + be,pt %icc, 6f +4: lduba [%o2] %asi, %g2 +5: lduba [%o2 + 1] %asi, %g3 + sll %g2, 8, %g2 + brz,pt %o3, 3f + add %g2, %g3, %g2 + sllx %g2, 48, %g2 + srax %g2, 48, %g2 +3: ba,pt %xcc, 0f + stx %g2, [%o0] +6: lduba [%o2 + 1] %asi, %g3 + sll %g2, 24, %g2 +7: lduba [%o2 + 2] %asi, %g7 + sll %g3, 16, %g3 +8: lduba [%o2 + 3] %asi, %g1 + sll %g7, 8, %g7 + or %g2, %g3, %g2 + or %g7, %g1, %g7 + or %g2, %g7, %g2 + brnz,a,pt %o3, 3f + sra %g2, 0, %g2 +3: ba,pt %xcc, 0f + stx %g2, [%o0] +9: lduba [%o2] %asi, %g2 +10: lduba [%o2 + 1] %asi, %g3 + sllx %g2, 56, %g2 +11: lduba [%o2 + 2] %asi, %g7 + sllx %g3, 48, %g3 +12: lduba [%o2 + 3] %asi, %g1 + sllx %g7, 40, %g7 + sllx %g1, 32, %g1 + or %g2, %g3, %g2 + or %g7, %g1, %g7 +13: lduba [%o2 + 4] %asi, %g3 + or %g2, %g7, %g7 +14: lduba [%o2 + 5] %asi, %g1 + sllx %g3, 24, %g3 +15: lduba [%o2 + 6] %asi, %g2 + sllx %g1, 16, %g1 + or %g7, %g3, %g7 +16: lduba [%o2 + 7] %asi, %g3 + sllx %g2, 8, %g2 + or %g7, %g1, %g7 + or %g2, %g3, %g2 + or %g7, %g2, %g7 + cmp %o1, 8 + be,a,pt %icc, 0f + stx %g7, [%o0] + srlx %g7, 32, %g2 + sra %g7, 0, %g7 + stx %g2, [%o0] + stx %g7, [%o0 + 8] +0: + wr %o5, 0x0, %asi + retl + nop + .size __do_int_load, .-__do_int_load + + .section __ex_table + .word 4b, kernel_unaligned_trap_fault + .word 5b, kernel_unaligned_trap_fault + .word 6b, kernel_unaligned_trap_fault + .word 7b, kernel_unaligned_trap_fault + .word 8b, kernel_unaligned_trap_fault + .word 9b, kernel_unaligned_trap_fault + .word 10b, kernel_unaligned_trap_fault + .word 11b, kernel_unaligned_trap_fault + .word 12b, kernel_unaligned_trap_fault + .word 13b, kernel_unaligned_trap_fault + .word 14b, kernel_unaligned_trap_fault + .word 15b, kernel_unaligned_trap_fault + .word 16b, kernel_unaligned_trap_fault + .previous diff --git a/arch/sparc64/kernel/unaligned.c b/arch/sparc64/kernel/unaligned.c index 4372bf32ecf6..da9739f0d437 100644 --- a/arch/sparc64/kernel/unaligned.c +++ b/arch/sparc64/kernel/unaligned.c @@ -180,169 +180,28 @@ static void __attribute_used__ unaligned_panic(char *str, struct pt_regs *regs) die_if_kernel(str, regs); } -#define do_integer_load(dest_reg, size, saddr, is_signed, asi, errh) ({ \ -__asm__ __volatile__ ( \ - "wr %4, 0, %%asi\n\t" \ - "cmp %1, 8\n\t" \ - "bge,pn %%icc, 9f\n\t" \ - " cmp %1, 4\n\t" \ - "be,pt %%icc, 6f\n" \ -"4:\t" " lduba [%2] %%asi, %%l1\n" \ -"5:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \ - "sll %%l1, 8, %%l1\n\t" \ - "brz,pt %3, 3f\n\t" \ - " add %%l1, %%l2, %%l1\n\t" \ - "sllx %%l1, 48, %%l1\n\t" \ - "srax %%l1, 48, %%l1\n" \ -"3:\t" "ba,pt %%xcc, 0f\n\t" \ - " stx %%l1, [%0]\n" \ -"6:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \ - "sll %%l1, 24, %%l1\n" \ -"7:\t" "lduba [%2 + 2] %%asi, %%g7\n\t" \ - "sll %%l2, 16, %%l2\n" \ -"8:\t" "lduba [%2 + 3] %%asi, %%g1\n\t" \ - "sll %%g7, 8, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%g7, %%l1\n\t" \ - "brnz,a,pt %3, 3f\n\t" \ - " sra %%l1, 0, %%l1\n" \ -"3:\t" "ba,pt %%xcc, 0f\n\t" \ - " stx %%l1, [%0]\n" \ -"9:\t" "lduba [%2] %%asi, %%l1\n" \ -"10:\t" "lduba [%2 + 1] %%asi, %%l2\n\t" \ - "sllx %%l1, 56, %%l1\n" \ -"11:\t" "lduba [%2 + 2] %%asi, %%g7\n\t" \ - "sllx %%l2, 48, %%l2\n" \ -"12:\t" "lduba [%2 + 3] %%asi, %%g1\n\t" \ - "sllx %%g7, 40, %%g7\n\t" \ - "sllx %%g1, 32, %%g1\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n" \ -"13:\t" "lduba [%2 + 4] %%asi, %%l2\n\t" \ - "or %%l1, %%g7, %%g7\n" \ -"14:\t" "lduba [%2 + 5] %%asi, %%g1\n\t" \ - "sllx %%l2, 24, %%l2\n" \ -"15:\t" "lduba [%2 + 6] %%asi, %%l1\n\t" \ - "sllx %%g1, 16, %%g1\n\t" \ - "or %%g7, %%l2, %%g7\n" \ -"16:\t" "lduba [%2 + 7] %%asi, %%l2\n\t" \ - "sllx %%l1, 8, %%l1\n\t" \ - "or %%g7, %%g1, %%g7\n\t" \ - "or %%l1, %%l2, %%l1\n\t" \ - "or %%g7, %%l1, %%g7\n\t" \ - "cmp %1, 8\n\t" \ - "be,a,pt %%icc, 0f\n\t" \ - " stx %%g7, [%0]\n\t" \ - "srlx %%g7, 32, %%l1\n\t" \ - "sra %%g7, 0, %%g7\n\t" \ - "stx %%l1, [%0]\n\t" \ - "stx %%g7, [%0 + 8]\n" \ -"0:\n\t" \ - "wr %%g0, %5, %%asi\n\n\t" \ - ".section __ex_table\n\t" \ - ".word 4b, " #errh "\n\t" \ - ".word 5b, " #errh "\n\t" \ - ".word 6b, " #errh "\n\t" \ - ".word 7b, " #errh "\n\t" \ - ".word 8b, " #errh "\n\t" \ - ".word 9b, " #errh "\n\t" \ - ".word 10b, " #errh "\n\t" \ - ".word 11b, " #errh "\n\t" \ - ".word 12b, " #errh "\n\t" \ - ".word 13b, " #errh "\n\t" \ - ".word 14b, " #errh "\n\t" \ - ".word 15b, " #errh "\n\t" \ - ".word 16b, " #errh "\n\n\t" \ - ".previous\n\t" \ - : : "r" (dest_reg), "r" (size), "r" (saddr), "r" (is_signed), \ - "r" (asi), "i" (ASI_AIUS) \ - : "l1", "l2", "g7", "g1", "cc"); \ -}) +extern void do_int_load(unsigned long *dest_reg, int size, + unsigned long *saddr, int is_signed, int asi); -#define store_common(dst_addr, size, src_val, asi, errh) ({ \ -__asm__ __volatile__ ( \ - "wr %3, 0, %%asi\n\t" \ - "ldx [%2], %%l1\n" \ - "cmp %1, 2\n\t" \ - "be,pn %%icc, 2f\n\t" \ - " cmp %1, 4\n\t" \ - "be,pt %%icc, 1f\n\t" \ - " srlx %%l1, 24, %%l2\n\t" \ - "srlx %%l1, 56, %%g1\n\t" \ - "srlx %%l1, 48, %%g7\n" \ -"4:\t" "stba %%g1, [%0] %%asi\n\t" \ - "srlx %%l1, 40, %%g1\n" \ -"5:\t" "stba %%g7, [%0 + 1] %%asi\n\t" \ - "srlx %%l1, 32, %%g7\n" \ -"6:\t" "stba %%g1, [%0 + 2] %%asi\n" \ -"7:\t" "stba %%g7, [%0 + 3] %%asi\n\t" \ - "srlx %%l1, 16, %%g1\n" \ -"8:\t" "stba %%l2, [%0 + 4] %%asi\n\t" \ - "srlx %%l1, 8, %%g7\n" \ -"9:\t" "stba %%g1, [%0 + 5] %%asi\n" \ -"10:\t" "stba %%g7, [%0 + 6] %%asi\n\t" \ - "ba,pt %%xcc, 0f\n" \ -"11:\t" " stba %%l1, [%0 + 7] %%asi\n" \ -"1:\t" "srl %%l1, 16, %%g7\n" \ -"12:\t" "stba %%l2, [%0] %%asi\n\t" \ - "srl %%l1, 8, %%l2\n" \ -"13:\t" "stba %%g7, [%0 + 1] %%asi\n" \ -"14:\t" "stba %%l2, [%0 + 2] %%asi\n\t" \ - "ba,pt %%xcc, 0f\n" \ -"15:\t" " stba %%l1, [%0 + 3] %%asi\n" \ -"2:\t" "srl %%l1, 8, %%l2\n" \ -"16:\t" "stba %%l2, [%0] %%asi\n" \ -"17:\t" "stba %%l1, [%0 + 1] %%asi\n" \ -"0:\n\t" \ - "wr %%g0, %4, %%asi\n\n\t" \ - ".section __ex_table\n\t" \ - ".word 4b, " #errh "\n\t" \ - ".word 5b, " #errh "\n\t" \ - ".word 6b, " #errh "\n\t" \ - ".word 7b, " #errh "\n\t" \ - ".word 8b, " #errh "\n\t" \ - ".word 9b, " #errh "\n\t" \ - ".word 10b, " #errh "\n\t" \ - ".word 11b, " #errh "\n\t" \ - ".word 12b, " #errh "\n\t" \ - ".word 13b, " #errh "\n\t" \ - ".word 14b, " #errh "\n\t" \ - ".word 15b, " #errh "\n\t" \ - ".word 16b, " #errh "\n\t" \ - ".word 17b, " #errh "\n\n\t" \ - ".previous\n\t" \ - : : "r" (dst_addr), "r" (size), "r" (src_val), "r" (asi), "i" (ASI_AIUS)\ - : "l1", "l2", "g7", "g1", "cc"); \ -}) - -#define do_integer_store(reg_num, size, dst_addr, regs, asi, errh) ({ \ - unsigned long zero = 0; \ - unsigned long *src_val = &zero; \ - \ - if (size == 16) { \ - size = 8; \ - zero = (((long)(reg_num ? \ - (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) | \ - (unsigned)fetch_reg(reg_num + 1, regs); \ - } else if (reg_num) src_val = fetch_reg_addr(reg_num, regs); \ - store_common(dst_addr, size, src_val, asi, errh); \ -}) - -extern void smp_capture(void); -extern void smp_release(void); - -#define do_atomic(srcdest_reg, mem, errh) ({ \ - unsigned long flags, tmp; \ - \ - smp_capture(); \ - local_irq_save(flags); \ - tmp = *srcdest_reg; \ - do_integer_load(srcdest_reg, 4, mem, 0, errh); \ - store_common(mem, 4, &tmp, errh); \ - local_irq_restore(flags); \ - smp_release(); \ -}) +extern void __do_int_store(unsigned long *dst_addr, int size, + unsigned long *src_val, int asi); + +static inline void do_int_store(int reg_num, int size, unsigned long *dst_addr, + struct pt_regs *regs, int asi) +{ + unsigned long zero = 0; + unsigned long *src_val = &zero; + + if (size == 16) { + size = 8; + zero = (((long)(reg_num ? + (unsigned)fetch_reg(reg_num, regs) : 0)) << 32) | + (unsigned)fetch_reg(reg_num + 1, regs); + } else if (reg_num) { + src_val = fetch_reg_addr(reg_num, regs); + } + __do_int_store(dst_addr, size, src_val, asi); +} static inline void advance(struct pt_regs *regs) { @@ -364,24 +223,29 @@ static inline int ok_for_kernel(unsigned int insn) return !floating_point_load_or_store_p(insn); } -void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) __asm__ ("kernel_mna_trap_fault"); - -void kernel_mna_trap_fault(struct pt_regs *regs, unsigned int insn) +void kernel_mna_trap_fault(void) { - unsigned long g2 = regs->u_regs [UREG_G2]; + struct pt_regs *regs = current_thread_info()->kern_una_regs; + unsigned int insn = current_thread_info()->kern_una_insn; + unsigned long g2 = regs->u_regs[UREG_G2]; unsigned long fixup = search_extables_range(regs->tpc, &g2); if (!fixup) { - unsigned long address = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); + unsigned long address; + + address = compute_effective_address(regs, insn, + ((insn >> 25) & 0x1f)); if (address < PAGE_SIZE) { - printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference in mna handler"); + printk(KERN_ALERT "Unable to handle kernel NULL " + "pointer dereference in mna handler"); } else - printk(KERN_ALERT "Unable to handle kernel paging request in mna handler"); + printk(KERN_ALERT "Unable to handle kernel paging " + "request in mna handler"); printk(KERN_ALERT " at virtual address %016lx\n",address); - printk(KERN_ALERT "current->{mm,active_mm}->context = %016lx\n", + printk(KERN_ALERT "current->{active_,}mm->context = %016lx\n", (current->mm ? CTX_HWBITS(current->mm->context) : CTX_HWBITS(current->active_mm->context))); - printk(KERN_ALERT "current->{mm,active_mm}->pgd = %016lx\n", + printk(KERN_ALERT "current->{active_,}mm->pgd = %016lx\n", (current->mm ? (unsigned long) current->mm->pgd : (unsigned long) current->active_mm->pgd)); die_if_kernel("Oops", regs); @@ -400,48 +264,41 @@ asmlinkage void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn, u enum direction dir = decode_direction(insn); int size = decode_access_size(insn); + current_thread_info()->kern_una_regs = regs; + current_thread_info()->kern_una_insn = insn; + if (!ok_for_kernel(insn) || dir == both) { - printk("Unsupported unaligned load/store trap for kernel at <%016lx>.\n", - regs->tpc); - unaligned_panic("Kernel does fpu/atomic unaligned load/store.", regs); - - __asm__ __volatile__ ("\n" -"kernel_unaligned_trap_fault:\n\t" - "mov %0, %%o0\n\t" - "call kernel_mna_trap_fault\n\t" - " mov %1, %%o1\n\t" - : - : "r" (regs), "r" (insn) - : "o0", "o1", "o2", "o3", "o4", "o5", "o7", - "g1", "g2", "g3", "g4", "g7", "cc"); + printk("Unsupported unaligned load/store trap for kernel " + "at <%016lx>.\n", regs->tpc); + unaligned_panic("Kernel does fpu/atomic " + "unaligned load/store.", regs); + + kernel_mna_trap_fault(); } else { - unsigned long addr = compute_effective_address(regs, insn, ((insn >> 25) & 0x1f)); + unsigned long addr; + addr = compute_effective_address(regs, insn, + ((insn >> 25) & 0x1f)); #ifdef DEBUG_MNA - printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] retpc[%016lx]\n", - regs->tpc, dirstrings[dir], addr, size, regs->u_regs[UREG_RETPC]); + printk("KMNA: pc=%016lx [dir=%s addr=%016lx size=%d] " + "retpc[%016lx]\n", + regs->tpc, dirstrings[dir], addr, size, + regs->u_regs[UREG_RETPC]); #endif switch (dir) { case load: - do_integer_load(fetch_reg_addr(((insn>>25)&0x1f), regs), - size, (unsigned long *) addr, - decode_signedness(insn), decode_asi(insn, regs), - kernel_unaligned_trap_fault); + do_int_load(fetch_reg_addr(((insn>>25)&0x1f), regs), + size, (unsigned long *) addr, + decode_signedness(insn), + decode_asi(insn, regs)); break; case store: - do_integer_store(((insn>>25)&0x1f), size, - (unsigned long *) addr, regs, - decode_asi(insn, regs), - kernel_unaligned_trap_fault); - break; -#if 0 /* unsupported */ - case both: - do_atomic(fetch_reg_addr(((insn>>25)&0x1f), regs), - (unsigned long *) addr, - kernel_unaligned_trap_fault); + do_int_store(((insn>>25)&0x1f), size, + (unsigned long *) addr, regs, + decode_asi(insn, regs)); break; -#endif + default: panic("Impossible kernel unaligned trap."); /* Not reached... */ @@ -492,9 +349,9 @@ int handle_popc(u32 insn, struct pt_regs *regs) extern void do_fpother(struct pt_regs *regs); extern void do_privact(struct pt_regs *regs); -extern void data_access_exception(struct pt_regs *regs, - unsigned long sfsr, - unsigned long sfar); +extern void spitfire_data_access_exception(struct pt_regs *regs, + unsigned long sfsr, + unsigned long sfar); int handle_ldf_stq(u32 insn, struct pt_regs *regs) { @@ -537,14 +394,14 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs) break; } default: - data_access_exception(regs, 0, addr); + spitfire_data_access_exception(regs, 0, addr); return 1; } if (put_user (first >> 32, (u32 __user *)addr) || __put_user ((u32)first, (u32 __user *)(addr + 4)) || __put_user (second >> 32, (u32 __user *)(addr + 8)) || __put_user ((u32)second, (u32 __user *)(addr + 12))) { - data_access_exception(regs, 0, addr); + spitfire_data_access_exception(regs, 0, addr); return 1; } } else { @@ -557,7 +414,7 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs) do_privact(regs); return 1; } else if (asi > ASI_SNFL) { - data_access_exception(regs, 0, addr); + spitfire_data_access_exception(regs, 0, addr); return 1; } switch (insn & 0x180000) { @@ -574,7 +431,7 @@ int handle_ldf_stq(u32 insn, struct pt_regs *regs) err |= __get_user (data[i], (u32 __user *)(addr + 4*i)); } if (err && !(asi & 0x2 /* NF */)) { - data_access_exception(regs, 0, addr); + spitfire_data_access_exception(regs, 0, addr); return 1; } if (asi & 0x8) /* Little */ { @@ -677,7 +534,7 @@ void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr *(u64 *)(f->regs + freg) = value; current_thread_info()->fpsaved[0] |= flag; } else { -daex: data_access_exception(regs, sfsr, sfar); +daex: spitfire_data_access_exception(regs, sfsr, sfar); return; } advance(regs); @@ -721,7 +578,7 @@ void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr __put_user ((u32)value, (u32 __user *)(sfar + 4))) goto daex; } else { -daex: data_access_exception(regs, sfsr, sfar); +daex: spitfire_data_access_exception(regs, sfsr, sfar); return; } advance(regs); diff --git a/arch/sparc64/kernel/us2e_cpufreq.c b/arch/sparc64/kernel/us2e_cpufreq.c index 7aae0a18aabe..686e526bec04 100644 --- a/arch/sparc64/kernel/us2e_cpufreq.c +++ b/arch/sparc64/kernel/us2e_cpufreq.c @@ -88,7 +88,6 @@ static void frob_mem_refresh(int cpu_slowing_down, { unsigned long old_refr_count, refr_count, mctrl; - refr_count = (clock_tick * MCTRL0_REFR_INTERVAL); refr_count /= (MCTRL0_REFR_CLKS_P_CNT * divisor * 1000000000UL); @@ -230,6 +229,25 @@ static unsigned long estar_to_divisor(unsigned long estar) return ret; } +static unsigned int us2e_freq_get(unsigned int cpu) +{ + cpumask_t cpus_allowed; + unsigned long clock_tick, estar; + + if (!cpu_online(cpu)) + return 0; + + cpus_allowed = current->cpus_allowed; + set_cpus_allowed(current, cpumask_of_cpu(cpu)); + + clock_tick = sparc64_get_clock_tick(cpu) / 1000; + estar = read_hbreg(HBIRD_ESTAR_MODE_ADDR); + + set_cpus_allowed(current, cpus_allowed); + + return clock_tick / estar_to_divisor(estar); +} + static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index) { unsigned long new_bits, new_freq; @@ -243,7 +261,7 @@ static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index) cpus_allowed = current->cpus_allowed; set_cpus_allowed(current, cpumask_of_cpu(cpu)); - new_freq = clock_tick = sparc64_get_clock_tick(cpu); + new_freq = clock_tick = sparc64_get_clock_tick(cpu) / 1000; new_bits = index_to_estar_mode(index); divisor = index_to_divisor(index); new_freq /= divisor; @@ -258,7 +276,8 @@ static void us2e_set_cpu_divider_index(unsigned int cpu, unsigned int index) cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE); if (old_divisor != divisor) - us2e_transition(estar, new_bits, clock_tick, old_divisor, divisor); + us2e_transition(estar, new_bits, clock_tick * 1000, + old_divisor, divisor); cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE); @@ -272,10 +291,8 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int new_index = 0; if (cpufreq_frequency_table_target(policy, - &us2e_freq_table[policy->cpu].table[0], - target_freq, - relation, - &new_index)) + &us2e_freq_table[policy->cpu].table[0], + target_freq, relation, &new_index)) return -EINVAL; us2e_set_cpu_divider_index(policy->cpu, new_index); @@ -292,7 +309,7 @@ static int us2e_freq_verify(struct cpufreq_policy *policy) static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy) { unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu); + unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; struct cpufreq_frequency_table *table = &us2e_freq_table[cpu].table[0]; @@ -351,9 +368,10 @@ static int __init us2e_freq_init(void) memset(us2e_freq_table, 0, (NR_CPUS * sizeof(struct us2e_freq_percpu_info))); + driver->init = us2e_freq_cpu_init; driver->verify = us2e_freq_verify; driver->target = us2e_freq_target; - driver->init = us2e_freq_cpu_init; + driver->get = us2e_freq_get; driver->exit = us2e_freq_cpu_exit; driver->owner = THIS_MODULE, strcpy(driver->name, "UltraSPARC-IIe"); diff --git a/arch/sparc64/kernel/us3_cpufreq.c b/arch/sparc64/kernel/us3_cpufreq.c index 18fe54b8aa55..9080e7cd4bb0 100644 --- a/arch/sparc64/kernel/us3_cpufreq.c +++ b/arch/sparc64/kernel/us3_cpufreq.c @@ -56,7 +56,7 @@ static void write_safari_cfg(unsigned long val) static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg) { - unsigned long clock_tick = sparc64_get_clock_tick(cpu); + unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; unsigned long ret; switch (safari_cfg & SAFARI_CFG_DIV_MASK) { @@ -76,6 +76,26 @@ static unsigned long get_current_freq(unsigned int cpu, unsigned long safari_cfg return ret; } +static unsigned int us3_freq_get(unsigned int cpu) +{ + cpumask_t cpus_allowed; + unsigned long reg; + unsigned int ret; + + if (!cpu_online(cpu)) + return 0; + + cpus_allowed = current->cpus_allowed; + set_cpus_allowed(current, cpumask_of_cpu(cpu)); + + reg = read_safari_cfg(); + ret = get_current_freq(cpu, reg); + + set_cpus_allowed(current, cpus_allowed); + + return ret; +} + static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index) { unsigned long new_bits, new_freq, reg; @@ -88,7 +108,7 @@ static void us3_set_cpu_divider_index(unsigned int cpu, unsigned int index) cpus_allowed = current->cpus_allowed; set_cpus_allowed(current, cpumask_of_cpu(cpu)); - new_freq = sparc64_get_clock_tick(cpu); + new_freq = sparc64_get_clock_tick(cpu) / 1000; switch (index) { case 0: new_bits = SAFARI_CFG_DIV_1; @@ -150,7 +170,7 @@ static int us3_freq_verify(struct cpufreq_policy *policy) static int __init us3_freq_cpu_init(struct cpufreq_policy *policy) { unsigned int cpu = policy->cpu; - unsigned long clock_tick = sparc64_get_clock_tick(cpu); + unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000; struct cpufreq_frequency_table *table = &us3_freq_table[cpu].table[0]; @@ -206,9 +226,10 @@ static int __init us3_freq_init(void) memset(us3_freq_table, 0, (NR_CPUS * sizeof(struct us3_freq_percpu_info))); + driver->init = us3_freq_cpu_init; driver->verify = us3_freq_verify; driver->target = us3_freq_target; - driver->init = us3_freq_cpu_init; + driver->get = us3_freq_get; driver->exit = us3_freq_cpu_exit; driver->owner = THIS_MODULE, strcpy(driver->name, "UltraSPARC-III"); diff --git a/arch/sparc64/kernel/vmlinux.lds.S b/arch/sparc64/kernel/vmlinux.lds.S index 382fd6798bb9..f47d0be39378 100644 --- a/arch/sparc64/kernel/vmlinux.lds.S +++ b/arch/sparc64/kernel/vmlinux.lds.S @@ -17,6 +17,7 @@ SECTIONS *(.text) SCHED_TEXT LOCK_TEXT + KPROBES_TEXT *(.gnu.warning) } =0 _etext = .; @@ -32,6 +33,8 @@ SECTIONS .data1 : { *(.data1) } . = ALIGN(64); .data.cacheline_aligned : { *(.data.cacheline_aligned) } + . = ALIGN(64); + .data.read_mostly : { *(.data.read_mostly) } _edata = .; PROVIDE (edata = .); .fixup : { *(.fixup) } diff --git a/arch/sparc64/kernel/winfixup.S b/arch/sparc64/kernel/winfixup.S index dfbc7e0dcf70..99c809a1e5ac 100644 --- a/arch/sparc64/kernel/winfixup.S +++ b/arch/sparc64/kernel/winfixup.S @@ -318,7 +318,7 @@ fill_fixup_dax: nop rdpr %pstate, %l1 ! Prepare to change globals. mov %g4, %o1 ! Setup args for - mov %g5, %o2 ! final call to data_access_exception. + mov %g5, %o2 ! final call to spitfire_data_access_exception. andn %l1, PSTATE_MM, %l1 ! We want to be in RMO mov %g6, %o7 ! Stash away current. @@ -330,7 +330,7 @@ fill_fixup_dax: mov TSB_REG, %g1 ldxa [%g1] ASI_IMMU, %g5 #endif - call data_access_exception + call spitfire_data_access_exception add %sp, PTREGS_OFF, %o0 b,pt %xcc, rtrap @@ -391,7 +391,7 @@ window_dax_from_user_common: 109: or %g7, %lo(109b), %g7 mov %l4, %o1 mov %l5, %o2 - call data_access_exception + call spitfire_data_access_exception add %sp, PTREGS_OFF, %o0 ba,pt %xcc, rtrap clr %l6 diff --git a/arch/sparc64/lib/Makefile b/arch/sparc64/lib/Makefile index 40dbeec7e5d6..d968aebe83b2 100644 --- a/arch/sparc64/lib/Makefile +++ b/arch/sparc64/lib/Makefile @@ -14,7 +14,6 @@ lib-y := PeeCeeI.o copy_page.o clear_page.o strlen.o strncmp.o \ copy_in_user.o user_fixup.o memmove.o \ mcount.o ipcsum.o rwsem.o xor.o find_bit.o delay.o -lib-$(CONFIG_DEBUG_SPINLOCK) += debuglocks.o lib-$(CONFIG_HAVE_DEC_LOCK) += dec_and_lock.o obj-y += iomap.o diff --git a/arch/sparc64/lib/PeeCeeI.c b/arch/sparc64/lib/PeeCeeI.c index 3008d536e8c2..3c6cfbb20360 100644 --- a/arch/sparc64/lib/PeeCeeI.c +++ b/arch/sparc64/lib/PeeCeeI.c @@ -7,28 +7,31 @@ #include <asm/io.h> #include <asm/byteorder.h> -void outsb(void __iomem *addr, const void *src, unsigned long count) +void outsb(unsigned long __addr, const void *src, unsigned long count) { + void __iomem *addr = (void __iomem *) __addr; const u8 *p = src; - while(count--) + while (count--) outb(*p++, addr); } -void outsw(void __iomem *addr, const void *src, unsigned long count) +void outsw(unsigned long __addr, const void *src, unsigned long count) { - if(count) { + void __iomem *addr = (void __iomem *) __addr; + + if (count) { u16 *ps = (u16 *)src; u32 *pi; - if(((u64)src) & 0x2) { + if (((u64)src) & 0x2) { u16 val = le16_to_cpup(ps); outw(val, addr); ps++; count--; } pi = (u32 *)ps; - while(count >= 2) { + while (count >= 2) { u32 w = le32_to_cpup(pi); pi++; @@ -37,19 +40,21 @@ void outsw(void __iomem *addr, const void *src, unsigned long count) count -= 2; } ps = (u16 *)pi; - if(count) { + if (count) { u16 val = le16_to_cpup(ps); outw(val, addr); } } } -void outsl(void __iomem *addr, const void *src, unsigned long count) +void outsl(unsigned long __addr, const void *src, unsigned long count) { - if(count) { - if((((u64)src) & 0x3) == 0) { + void __iomem *addr = (void __iomem *) __addr; + + if (count) { + if ((((u64)src) & 0x3) == 0) { u32 *p = (u32 *)src; - while(count--) { + while (count--) { u32 val = cpu_to_le32p(p); outl(val, addr); p++; @@ -60,13 +65,13 @@ void outsl(void __iomem *addr, const void *src, unsigned long count) u32 l = 0, l2; u32 *pi; - switch(((u64)src) & 0x3) { + switch (((u64)src) & 0x3) { case 0x2: count -= 1; l = cpu_to_le16p(ps) << 16; ps++; pi = (u32 *)ps; - while(count--) { + while (count--) { l2 = cpu_to_le32p(pi); pi++; outl(((l >> 16) | (l2 << 16)), addr); @@ -86,7 +91,7 @@ void outsl(void __iomem *addr, const void *src, unsigned long count) ps++; l |= (l2 << 16); pi = (u32 *)ps; - while(count--) { + while (count--) { l2 = cpu_to_le32p(pi); pi++; outl(((l >> 8) | (l2 << 24)), addr); @@ -101,7 +106,7 @@ void outsl(void __iomem *addr, const void *src, unsigned long count) pb = (u8 *)src; l = (*pb++ << 24); pi = (u32 *)pb; - while(count--) { + while (count--) { l2 = cpu_to_le32p(pi); pi++; outl(((l >> 24) | (l2 << 8)), addr); @@ -119,16 +124,18 @@ void outsl(void __iomem *addr, const void *src, unsigned long count) } } -void insb(void __iomem *addr, void *dst, unsigned long count) +void insb(unsigned long __addr, void *dst, unsigned long count) { - if(count) { + void __iomem *addr = (void __iomem *) __addr; + + if (count) { u32 *pi; u8 *pb = dst; - while((((unsigned long)pb) & 0x3) && count--) + while ((((unsigned long)pb) & 0x3) && count--) *pb++ = inb(addr); pi = (u32 *)pb; - while(count >= 4) { + while (count >= 4) { u32 w; w = (inb(addr) << 24); @@ -139,23 +146,25 @@ void insb(void __iomem *addr, void *dst, unsigned long count) count -= 4; } pb = (u8 *)pi; - while(count--) + while (count--) *pb++ = inb(addr); } } -void insw(void __iomem *addr, void *dst, unsigned long count) +void insw(unsigned long __addr, void *dst, unsigned long count) { - if(count) { + void __iomem *addr = (void __iomem *) __addr; + + if (count) { u16 *ps = dst; u32 *pi; - if(((unsigned long)ps) & 0x2) { + if (((unsigned long)ps) & 0x2) { *ps++ = le16_to_cpu(inw(addr)); count--; } pi = (u32 *)ps; - while(count >= 2) { + while (count >= 2) { u32 w; w = (le16_to_cpu(inw(addr)) << 16); @@ -164,31 +173,33 @@ void insw(void __iomem *addr, void *dst, unsigned long count) count -= 2; } ps = (u16 *)pi; - if(count) + if (count) *ps = le16_to_cpu(inw(addr)); } } -void insl(void __iomem *addr, void *dst, unsigned long count) +void insl(unsigned long __addr, void *dst, unsigned long count) { - if(count) { - if((((unsigned long)dst) & 0x3) == 0) { + void __iomem *addr = (void __iomem *) __addr; + + if (count) { + if ((((unsigned long)dst) & 0x3) == 0) { u32 *pi = dst; - while(count--) + while (count--) *pi++ = le32_to_cpu(inl(addr)); } else { u32 l = 0, l2, *pi; u16 *ps; u8 *pb; - switch(((unsigned long)dst) & 3) { + switch (((unsigned long)dst) & 3) { case 0x2: ps = dst; count -= 1; l = le32_to_cpu(inl(addr)); *ps++ = l; pi = (u32 *)ps; - while(count--) { + while (count--) { l2 = le32_to_cpu(inl(addr)); *pi++ = (l << 16) | (l2 >> 16); l = l2; @@ -205,7 +216,7 @@ void insl(void __iomem *addr, void *dst, unsigned long count) ps = (u16 *)pb; *ps++ = ((l >> 8) & 0xffff); pi = (u32 *)ps; - while(count--) { + while (count--) { l2 = le32_to_cpu(inl(addr)); *pi++ = (l << 24) | (l2 >> 8); l = l2; @@ -220,7 +231,7 @@ void insl(void __iomem *addr, void *dst, unsigned long count) l = le32_to_cpu(inl(addr)); *pb++ = l >> 24; pi = (u32 *)pb; - while(count--) { + while (count--) { l2 = le32_to_cpu(inl(addr)); *pi++ = (l << 8) | (l2 >> 24); l = l2; diff --git a/arch/sparc64/lib/copy_page.S b/arch/sparc64/lib/copy_page.S index 23ebf2c970b7..feebb14fd27a 100644 --- a/arch/sparc64/lib/copy_page.S +++ b/arch/sparc64/lib/copy_page.S @@ -87,7 +87,7 @@ copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */ membar #Sync wrpr %o2, 0x0, %pstate - BRANCH_IF_ANY_CHEETAH(g3,o2,1f) +cheetah_copy_page_insn: ba,pt %xcc, 9f nop @@ -240,3 +240,14 @@ copy_user_page: /* %o0=dest, %o1=src, %o2=vaddr */ stw %o4, [%g6 + TI_PRE_COUNT] .size copy_user_page, .-copy_user_page + + .globl cheetah_patch_copy_page +cheetah_patch_copy_page: + sethi %hi(0x01000000), %o1 ! NOP + sethi %hi(cheetah_copy_page_insn), %o0 + or %o0, %lo(cheetah_copy_page_insn), %o0 + stw %o1, [%o0] + membar #StoreStore + flush %o0 + retl + nop diff --git a/arch/sparc64/lib/debuglocks.c b/arch/sparc64/lib/debuglocks.c deleted file mode 100644 index f03344cf784e..000000000000 --- a/arch/sparc64/lib/debuglocks.c +++ /dev/null @@ -1,378 +0,0 @@ -/* $Id: debuglocks.c,v 1.9 2001/11/17 00:10:48 davem Exp $ - * debuglocks.c: Debugging versions of SMP locking primitives. - * - * Copyright (C) 1998 David S. Miller (davem@redhat.com) - */ - -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/spinlock.h> -#include <asm/system.h> - -#ifdef CONFIG_SMP - -#define GET_CALLER(PC) __asm__ __volatile__("mov %%i7, %0" : "=r" (PC)) - -static inline void show (char *str, spinlock_t *lock, unsigned long caller) -{ - int cpu = smp_processor_id(); - - printk("%s(%p) CPU#%d stuck at %08x, owner PC(%08x):CPU(%x)\n", - str, lock, cpu, (unsigned int) caller, - lock->owner_pc, lock->owner_cpu); -} - -static inline void show_read (char *str, rwlock_t *lock, unsigned long caller) -{ - int cpu = smp_processor_id(); - - printk("%s(%p) CPU#%d stuck at %08x, writer PC(%08x):CPU(%x)\n", - str, lock, cpu, (unsigned int) caller, - lock->writer_pc, lock->writer_cpu); -} - -static inline void show_write (char *str, rwlock_t *lock, unsigned long caller) -{ - int cpu = smp_processor_id(); - int i; - - printk("%s(%p) CPU#%d stuck at %08x\n", - str, lock, cpu, (unsigned int) caller); - printk("Writer: PC(%08x):CPU(%x)\n", - lock->writer_pc, lock->writer_cpu); - printk("Readers:"); - for (i = 0; i < NR_CPUS; i++) - if (lock->reader_pc[i]) - printk(" %d[%08x]", i, lock->reader_pc[i]); - printk("\n"); -} - -#undef INIT_STUCK -#define INIT_STUCK 100000000 - -void _do_spin_lock(spinlock_t *lock, char *str) -{ - unsigned long caller, val; - int stuck = INIT_STUCK; - int cpu = get_cpu(); - int shown = 0; - - GET_CALLER(caller); -again: - __asm__ __volatile__("ldstub [%1], %0" - : "=r" (val) - : "r" (&(lock->lock)) - : "memory"); - membar("#StoreLoad | #StoreStore"); - if (val) { - while (lock->lock) { - if (!--stuck) { - if (shown++ <= 2) - show(str, lock, caller); - stuck = INIT_STUCK; - } - membar("#LoadLoad"); - } - goto again; - } - lock->owner_pc = ((unsigned int)caller); - lock->owner_cpu = cpu; - current->thread.smp_lock_count++; - current->thread.smp_lock_pc = ((unsigned int)caller); - - put_cpu(); -} - -int _do_spin_trylock(spinlock_t *lock) -{ - unsigned long val, caller; - int cpu = get_cpu(); - - GET_CALLER(caller); - __asm__ __volatile__("ldstub [%1], %0" - : "=r" (val) - : "r" (&(lock->lock)) - : "memory"); - membar("#StoreLoad | #StoreStore"); - if (!val) { - lock->owner_pc = ((unsigned int)caller); - lock->owner_cpu = cpu; - current->thread.smp_lock_count++; - current->thread.smp_lock_pc = ((unsigned int)caller); - } - - put_cpu(); - - return val == 0; -} - -void _do_spin_unlock(spinlock_t *lock) -{ - lock->owner_pc = 0; - lock->owner_cpu = NO_PROC_ID; - membar("#StoreStore | #LoadStore"); - lock->lock = 0; - current->thread.smp_lock_count--; -} - -/* Keep INIT_STUCK the same... */ - -void _do_read_lock (rwlock_t *rw, char *str) -{ - unsigned long caller, val; - int stuck = INIT_STUCK; - int cpu = get_cpu(); - int shown = 0; - - GET_CALLER(caller); -wlock_again: - /* Wait for any writer to go away. */ - while (((long)(rw->lock)) < 0) { - if (!--stuck) { - if (shown++ <= 2) - show_read(str, rw, caller); - stuck = INIT_STUCK; - } - membar("#LoadLoad"); - } - /* Try once to increment the counter. */ - __asm__ __volatile__( -" ldx [%0], %%g1\n" -" brlz,a,pn %%g1, 2f\n" -" mov 1, %0\n" -" add %%g1, 1, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" sub %%g1, %%g7, %0\n" -"2:" : "=r" (val) - : "0" (&(rw->lock)) - : "g1", "g7", "memory"); - membar("#StoreLoad | #StoreStore"); - if (val) - goto wlock_again; - rw->reader_pc[cpu] = ((unsigned int)caller); - current->thread.smp_lock_count++; - current->thread.smp_lock_pc = ((unsigned int)caller); - - put_cpu(); -} - -void _do_read_unlock (rwlock_t *rw, char *str) -{ - unsigned long caller, val; - int stuck = INIT_STUCK; - int cpu = get_cpu(); - int shown = 0; - - GET_CALLER(caller); - - /* Drop our identity _first_. */ - rw->reader_pc[cpu] = 0; - current->thread.smp_lock_count--; -runlock_again: - /* Spin trying to decrement the counter using casx. */ - __asm__ __volatile__( -" membar #StoreLoad | #LoadLoad\n" -" ldx [%0], %%g1\n" -" sub %%g1, 1, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" membar #StoreLoad | #StoreStore\n" -" sub %%g1, %%g7, %0\n" - : "=r" (val) - : "0" (&(rw->lock)) - : "g1", "g7", "memory"); - if (val) { - if (!--stuck) { - if (shown++ <= 2) - show_read(str, rw, caller); - stuck = INIT_STUCK; - } - goto runlock_again; - } - - put_cpu(); -} - -void _do_write_lock (rwlock_t *rw, char *str) -{ - unsigned long caller, val; - int stuck = INIT_STUCK; - int cpu = get_cpu(); - int shown = 0; - - GET_CALLER(caller); -wlock_again: - /* Spin while there is another writer. */ - while (((long)rw->lock) < 0) { - if (!--stuck) { - if (shown++ <= 2) - show_write(str, rw, caller); - stuck = INIT_STUCK; - } - membar("#LoadLoad"); - } - - /* Try to acuire the write bit. */ - __asm__ __volatile__( -" mov 1, %%g3\n" -" sllx %%g3, 63, %%g3\n" -" ldx [%0], %%g1\n" -" brlz,pn %%g1, 1f\n" -" or %%g1, %%g3, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" membar #StoreLoad | #StoreStore\n" -" ba,pt %%xcc, 2f\n" -" sub %%g1, %%g7, %0\n" -"1: mov 1, %0\n" -"2:" : "=r" (val) - : "0" (&(rw->lock)) - : "g3", "g1", "g7", "memory"); - if (val) { - /* We couldn't get the write bit. */ - if (!--stuck) { - if (shown++ <= 2) - show_write(str, rw, caller); - stuck = INIT_STUCK; - } - goto wlock_again; - } - if ((rw->lock & ((1UL<<63)-1UL)) != 0UL) { - /* Readers still around, drop the write - * lock, spin, and try again. - */ - if (!--stuck) { - if (shown++ <= 2) - show_write(str, rw, caller); - stuck = INIT_STUCK; - } - __asm__ __volatile__( -" mov 1, %%g3\n" -" sllx %%g3, 63, %%g3\n" -"1: ldx [%0], %%g1\n" -" andn %%g1, %%g3, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" cmp %%g1, %%g7\n" -" membar #StoreLoad | #StoreStore\n" -" bne,pn %%xcc, 1b\n" -" nop" - : /* no outputs */ - : "r" (&(rw->lock)) - : "g3", "g1", "g7", "cc", "memory"); - while(rw->lock != 0) { - if (!--stuck) { - if (shown++ <= 2) - show_write(str, rw, caller); - stuck = INIT_STUCK; - } - membar("#LoadLoad"); - } - goto wlock_again; - } - - /* We have it, say who we are. */ - rw->writer_pc = ((unsigned int)caller); - rw->writer_cpu = cpu; - current->thread.smp_lock_count++; - current->thread.smp_lock_pc = ((unsigned int)caller); - - put_cpu(); -} - -void _do_write_unlock(rwlock_t *rw) -{ - unsigned long caller, val; - int stuck = INIT_STUCK; - int shown = 0; - - GET_CALLER(caller); - - /* Drop our identity _first_ */ - rw->writer_pc = 0; - rw->writer_cpu = NO_PROC_ID; - current->thread.smp_lock_count--; -wlock_again: - __asm__ __volatile__( -" membar #StoreLoad | #LoadLoad\n" -" mov 1, %%g3\n" -" sllx %%g3, 63, %%g3\n" -" ldx [%0], %%g1\n" -" andn %%g1, %%g3, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" membar #StoreLoad | #StoreStore\n" -" sub %%g1, %%g7, %0\n" - : "=r" (val) - : "0" (&(rw->lock)) - : "g3", "g1", "g7", "memory"); - if (val) { - if (!--stuck) { - if (shown++ <= 2) - show_write("write_unlock", rw, caller); - stuck = INIT_STUCK; - } - goto wlock_again; - } -} - -int _do_write_trylock (rwlock_t *rw, char *str) -{ - unsigned long caller, val; - int cpu = get_cpu(); - - GET_CALLER(caller); - - /* Try to acuire the write bit. */ - __asm__ __volatile__( -" mov 1, %%g3\n" -" sllx %%g3, 63, %%g3\n" -" ldx [%0], %%g1\n" -" brlz,pn %%g1, 1f\n" -" or %%g1, %%g3, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" membar #StoreLoad | #StoreStore\n" -" ba,pt %%xcc, 2f\n" -" sub %%g1, %%g7, %0\n" -"1: mov 1, %0\n" -"2:" : "=r" (val) - : "0" (&(rw->lock)) - : "g3", "g1", "g7", "memory"); - - if (val) { - put_cpu(); - return 0; - } - - if ((rw->lock & ((1UL<<63)-1UL)) != 0UL) { - /* Readers still around, drop the write - * lock, return failure. - */ - __asm__ __volatile__( -" mov 1, %%g3\n" -" sllx %%g3, 63, %%g3\n" -"1: ldx [%0], %%g1\n" -" andn %%g1, %%g3, %%g7\n" -" casx [%0], %%g1, %%g7\n" -" cmp %%g1, %%g7\n" -" membar #StoreLoad | #StoreStore\n" -" bne,pn %%xcc, 1b\n" -" nop" - : /* no outputs */ - : "r" (&(rw->lock)) - : "g3", "g1", "g7", "cc", "memory"); - - put_cpu(); - - return 0; - } - - /* We have it, say who we are. */ - rw->writer_pc = ((unsigned int)caller); - rw->writer_cpu = cpu; - current->thread.smp_lock_count++; - current->thread.smp_lock_pc = ((unsigned int)caller); - - put_cpu(); - - return 1; -} - -#endif /* CONFIG_SMP */ diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 3ffee7b51aed..db1e3310e907 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -18,6 +18,7 @@ #include <linux/smp_lock.h> #include <linux/init.h> #include <linux/interrupt.h> +#include <linux/kprobes.h> #include <asm/page.h> #include <asm/pgtable.h> @@ -34,22 +35,6 @@ extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS]; /* - * To debug kernel during syscall entry. - */ -void syscall_trace_entry(struct pt_regs *regs) -{ - printk("scall entry: %s[%d]/cpu%d: %d\n", current->comm, current->pid, smp_processor_id(), (int) regs->u_regs[UREG_G1]); -} - -/* - * To debug kernel during syscall exit. - */ -void syscall_trace_exit(struct pt_regs *regs) -{ - printk("scall exit: %s[%d]/cpu%d: %d\n", current->comm, current->pid, smp_processor_id(), (int) regs->u_regs[UREG_G1]); -} - -/* * To debug kernel to catch accesses to certain virtual/physical addresses. * Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints. * flags = VM_READ watches memread accesses, flags = VM_WRITE watches memwrite accesses. @@ -133,8 +118,9 @@ unsigned long __init prom_probe_memory (void) return tally; } -static void unhandled_fault(unsigned long address, struct task_struct *tsk, - struct pt_regs *regs) +static void __kprobes unhandled_fault(unsigned long address, + struct task_struct *tsk, + struct pt_regs *regs) { if ((unsigned long) address < PAGE_SIZE) { printk(KERN_ALERT "Unable to handle kernel NULL " @@ -320,7 +306,7 @@ cannot_handle: unhandled_fault (address, current, regs); } -asmlinkage void do_sparc64_fault(struct pt_regs *regs) +asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) { struct mm_struct *mm = current->mm; struct vm_area_struct *vma; diff --git a/arch/sparc64/mm/generic.c b/arch/sparc64/mm/generic.c index 6b31f6117a95..c954d91f01d0 100644 --- a/arch/sparc64/mm/generic.c +++ b/arch/sparc64/mm/generic.c @@ -116,37 +116,6 @@ static inline int io_remap_pud_range(struct mm_struct *mm, pud_t * pud, unsigned return 0; } -int io_remap_page_range(struct vm_area_struct *vma, unsigned long from, unsigned long offset, unsigned long size, pgprot_t prot, int space) -{ - int error = 0; - pgd_t * dir; - unsigned long beg = from; - unsigned long end = from + size; - struct mm_struct *mm = vma->vm_mm; - - prot = __pgprot(pg_iobits); - offset -= from; - dir = pgd_offset(mm, from); - flush_cache_range(vma, beg, end); - - spin_lock(&mm->page_table_lock); - while (from < end) { - pud_t *pud = pud_alloc(mm, dir, from); - error = -ENOMEM; - if (!pud) - break; - error = io_remap_pud_range(mm, pud, from, end - from, offset + from, prot, space); - if (error) - break; - from = (from + PGDIR_SIZE) & PGDIR_MASK; - dir++; - } - flush_tlb_range(vma, beg, end); - spin_unlock(&mm->page_table_lock); - - return error; -} - int io_remap_pfn_range(struct vm_area_struct *vma, unsigned long from, unsigned long pfn, unsigned long size, pgprot_t prot) { diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 8fc413cb6acd..fdb1ebb308c9 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -19,6 +19,7 @@ #include <linux/pagemap.h> #include <linux/fs.h> #include <linux/seq_file.h> +#include <linux/kprobes.h> #include <asm/head.h> #include <asm/system.h> @@ -121,15 +122,24 @@ __inline__ void flush_dcache_page_impl(struct page *page) } #define PG_dcache_dirty PG_arch_1 +#define PG_dcache_cpu_shift 24 +#define PG_dcache_cpu_mask (256 - 1) + +#if NR_CPUS > 256 +#error D-cache dirty tracking and thread_info->cpu need fixing for > 256 cpus +#endif #define dcache_dirty_cpu(page) \ - (((page)->flags >> 24) & (NR_CPUS - 1UL)) + (((page)->flags >> PG_dcache_cpu_shift) & PG_dcache_cpu_mask) static __inline__ void set_dcache_dirty(struct page *page, int this_cpu) { unsigned long mask = this_cpu; - unsigned long non_cpu_bits = ~((NR_CPUS - 1UL) << 24UL); - mask = (mask << 24) | (1UL << PG_dcache_dirty); + unsigned long non_cpu_bits; + + non_cpu_bits = ~(PG_dcache_cpu_mask << PG_dcache_cpu_shift); + mask = (mask << PG_dcache_cpu_shift) | (1UL << PG_dcache_dirty); + __asm__ __volatile__("1:\n\t" "ldx [%2], %%g7\n\t" "and %%g7, %1, %%g1\n\t" @@ -151,7 +161,7 @@ static __inline__ void clear_dcache_dirty_cpu(struct page *page, unsigned long c __asm__ __volatile__("! test_and_clear_dcache_dirty\n" "1:\n\t" "ldx [%2], %%g7\n\t" - "srlx %%g7, 24, %%g1\n\t" + "srlx %%g7, %4, %%g1\n\t" "and %%g1, %3, %%g1\n\t" "cmp %%g1, %0\n\t" "bne,pn %%icc, 2f\n\t" @@ -164,7 +174,8 @@ static __inline__ void clear_dcache_dirty_cpu(struct page *page, unsigned long c "2:" : /* no outputs */ : "r" (cpu), "r" (mask), "r" (&page->flags), - "i" (NR_CPUS - 1UL) + "i" (PG_dcache_cpu_mask), + "i" (PG_dcache_cpu_shift) : "g1", "g7"); } @@ -180,7 +191,8 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t p if (pfn_valid(pfn) && (page = pfn_to_page(pfn), page_mapping(page)) && ((pg_flags = page->flags) & (1UL << PG_dcache_dirty))) { - int cpu = ((pg_flags >> 24) & (NR_CPUS - 1UL)); + int cpu = ((pg_flags >> PG_dcache_cpu_shift) & + PG_dcache_cpu_mask); int this_cpu = get_cpu(); /* This is just to optimize away some function calls @@ -239,7 +251,7 @@ out: put_cpu(); } -void flush_icache_range(unsigned long start, unsigned long end) +void __kprobes flush_icache_range(unsigned long start, unsigned long end) { /* Cheetah has coherent I-cache. */ if (tlb_type == spitfire) { diff --git a/arch/sparc64/mm/ultra.S b/arch/sparc64/mm/ultra.S index 363770893797..b2ee9b53227f 100644 --- a/arch/sparc64/mm/ultra.S +++ b/arch/sparc64/mm/ultra.S @@ -10,6 +10,7 @@ #include <asm/page.h> #include <asm/spitfire.h> #include <asm/mmu_context.h> +#include <asm/mmu.h> #include <asm/pil.h> #include <asm/head.h> #include <asm/thread_info.h> @@ -45,6 +46,8 @@ __flush_tlb_mm: /* %o0=(ctx & TAG_CONTEXT_BITS), %o1=SECONDARY_CONTEXT */ nop nop nop + nop + nop .align 32 .globl __flush_tlb_pending @@ -73,6 +76,9 @@ __flush_tlb_pending: retl wrpr %g7, 0x0, %pstate nop + nop + nop + nop .align 32 .globl __flush_tlb_kernel_range @@ -113,6 +119,7 @@ __spitfire_flush_tlb_mm_slow: #else #error unsupported PAGE_SIZE #endif + .section .kprobes.text, "ax" .align 32 .globl __flush_icache_page __flush_icache_page: /* %o0 = phys_page */ @@ -195,6 +202,7 @@ dflush4:stxa %g0, [%o4] ASI_DCACHE_TAG nop #endif /* DCACHE_ALIASING_POSSIBLE */ + .previous .text .align 32 __prefill_dtlb: rdpr %pstate, %g7 @@ -224,16 +232,8 @@ __update_mmu_cache: /* %o0=hw_context, %o1=address, %o2=pte, %o3=fault_code */ or %o5, %o0, %o5 ba,a,pt %xcc, __prefill_itlb - /* Cheetah specific versions, patched at boot time. - * - * This writes of the PRIMARY_CONTEXT register in this file are - * safe even on Cheetah+ and later wrt. the page size fields. - * The nucleus page size fields do not matter because we make - * no data references, and these instructions execute out of a - * locked I-TLB entry sitting in the fully assosciative I-TLB. - * This sequence should also never trap. - */ -__cheetah_flush_tlb_mm: /* 15 insns */ + /* Cheetah specific versions, patched at boot time. */ +__cheetah_flush_tlb_mm: /* 18 insns */ rdpr %pstate, %g7 andn %g7, PSTATE_IE, %g2 wrpr %g2, 0x0, %pstate @@ -241,6 +241,9 @@ __cheetah_flush_tlb_mm: /* 15 insns */ mov PRIMARY_CONTEXT, %o2 mov 0x40, %g3 ldxa [%o2] ASI_DMMU, %g2 + srlx %g2, CTX_PGSZ1_NUC_SHIFT, %o1 + sllx %o1, CTX_PGSZ1_NUC_SHIFT, %o1 + or %o0, %o1, %o0 /* Preserve nucleus page size fields */ stxa %o0, [%o2] ASI_DMMU stxa %g0, [%g3] ASI_DMMU_DEMAP stxa %g0, [%g3] ASI_IMMU_DEMAP @@ -250,7 +253,7 @@ __cheetah_flush_tlb_mm: /* 15 insns */ retl wrpr %g7, 0x0, %pstate -__cheetah_flush_tlb_pending: /* 23 insns */ +__cheetah_flush_tlb_pending: /* 26 insns */ /* %o0 = context, %o1 = nr, %o2 = vaddrs[] */ rdpr %pstate, %g7 sllx %o1, 3, %o1 @@ -259,6 +262,9 @@ __cheetah_flush_tlb_pending: /* 23 insns */ wrpr %g0, 1, %tl mov PRIMARY_CONTEXT, %o4 ldxa [%o4] ASI_DMMU, %g2 + srlx %g2, CTX_PGSZ1_NUC_SHIFT, %o3 + sllx %o3, CTX_PGSZ1_NUC_SHIFT, %o3 + or %o0, %o3, %o0 /* Preserve nucleus page size fields */ stxa %o0, [%o4] ASI_DMMU 1: sub %o1, (1 << 3), %o1 ldx [%o2 + %o1], %o3 @@ -311,14 +317,14 @@ cheetah_patch_cachetlbops: sethi %hi(__cheetah_flush_tlb_mm), %o1 or %o1, %lo(__cheetah_flush_tlb_mm), %o1 call cheetah_patch_one - mov 15, %o2 + mov 18, %o2 sethi %hi(__flush_tlb_pending), %o0 or %o0, %lo(__flush_tlb_pending), %o0 sethi %hi(__cheetah_flush_tlb_pending), %o1 or %o1, %lo(__cheetah_flush_tlb_pending), %o1 call cheetah_patch_one - mov 23, %o2 + mov 26, %o2 #ifdef DCACHE_ALIASING_POSSIBLE sethi %hi(__flush_dcache_page), %o0 @@ -352,9 +358,12 @@ cheetah_patch_cachetlbops: .globl xcall_flush_tlb_mm xcall_flush_tlb_mm: mov PRIMARY_CONTEXT, %g2 - mov 0x40, %g4 ldxa [%g2] ASI_DMMU, %g3 + srlx %g3, CTX_PGSZ1_NUC_SHIFT, %g4 + sllx %g4, CTX_PGSZ1_NUC_SHIFT, %g4 + or %g5, %g4, %g5 /* Preserve nucleus page size fields */ stxa %g5, [%g2] ASI_DMMU + mov 0x40, %g4 stxa %g0, [%g4] ASI_DMMU_DEMAP stxa %g0, [%g4] ASI_IMMU_DEMAP stxa %g3, [%g2] ASI_DMMU @@ -366,6 +375,10 @@ xcall_flush_tlb_pending: sllx %g1, 3, %g1 mov PRIMARY_CONTEXT, %g4 ldxa [%g4] ASI_DMMU, %g2 + srlx %g2, CTX_PGSZ1_NUC_SHIFT, %g4 + sllx %g4, CTX_PGSZ1_NUC_SHIFT, %g4 + or %g5, %g4, %g5 + mov PRIMARY_CONTEXT, %g4 stxa %g5, [%g4] ASI_DMMU 1: sub %g1, (1 << 3), %g1 ldx [%g7 + %g1], %g5 diff --git a/arch/sparc64/solaris/entry64.S b/arch/sparc64/solaris/entry64.S index 0cc9dad75c5e..4b6ae583c0a3 100644 --- a/arch/sparc64/solaris/entry64.S +++ b/arch/sparc64/solaris/entry64.S @@ -24,8 +24,9 @@ .text solaris_syscall_trace: + add %sp, PTREGS_OFF, %o0 call syscall_trace - nop + mov 0, %o1 srl %i0, 0, %o0 mov %i4, %o4 srl %i1, 0, %o1 @@ -159,8 +160,10 @@ ret_from_solaris: stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] !npc = npc+4 solaris_syscall_trace2: + add %sp, PTREGS_OFF, %o0 call syscall_trace - add %l1, 0x4, %l2 /* npc = npc+4 */ + mov 1, %o1 + add %l1, 0x4, %l2 /* npc = npc+4 */ andcc %l1, 1, %g0 bne,pn %icc, 2b nop diff --git a/arch/sparc64/solaris/ioctl.c b/arch/sparc64/solaris/ioctl.c index cac0a1cf0050..be0a054e3ed6 100644 --- a/arch/sparc64/solaris/ioctl.c +++ b/arch/sparc64/solaris/ioctl.c @@ -24,6 +24,7 @@ #include <linux/netdevice.h> #include <linux/mtio.h> #include <linux/time.h> +#include <linux/rcupdate.h> #include <linux/compat.h> #include <net/sock.h> @@ -293,16 +294,18 @@ static struct module_info { static inline int solaris_sockmod(unsigned int fd, unsigned int cmd, u32 arg) { struct inode *ino; + struct fdtable *fdt; /* I wonder which of these tests are superfluous... --patrik */ - spin_lock(¤t->files->file_lock); - if (! current->files->fd[fd] || - ! current->files->fd[fd]->f_dentry || - ! (ino = current->files->fd[fd]->f_dentry->d_inode) || + rcu_read_lock(); + fdt = files_fdtable(current->files); + if (! fdt->fd[fd] || + ! fdt->fd[fd]->f_dentry || + ! (ino = fdt->fd[fd]->f_dentry->d_inode) || ! S_ISSOCK(ino->i_mode)) { - spin_unlock(¤t->files->file_lock); + rcu_read_unlock(); return TBADF; } - spin_unlock(¤t->files->file_lock); + rcu_read_unlock(); switch (cmd & 0xff) { case 109: /* SI_SOCKPARAMS */ diff --git a/arch/sparc64/solaris/misc.c b/arch/sparc64/solaris/misc.c index 15b4cfe07557..302efbcba70e 100644 --- a/arch/sparc64/solaris/misc.c +++ b/arch/sparc64/solaris/misc.c @@ -737,7 +737,8 @@ MODULE_LICENSE("GPL"); extern u32 tl0_solaris[8]; #define update_ttable(x) \ tl0_solaris[3] = (((long)(x) - (long)tl0_solaris - 3) >> 2) | 0x40000000; \ - __asm__ __volatile__ ("membar #StoreStore; flush %0" : : "r" (&tl0_solaris[3])) + wmb(); \ + __asm__ __volatile__ ("flush %0" : : "r" (&tl0_solaris[3])) #else #endif @@ -761,7 +762,8 @@ int init_module(void) entry64_personality_patch |= (offsetof(struct task_struct, personality) + (sizeof(unsigned long) - 1)); - __asm__ __volatile__("membar #StoreStore; flush %0" + wmb(); + __asm__ __volatile__("flush %0" : : "r" (&entry64_personality_patch)); return 0; } diff --git a/arch/sparc64/solaris/socket.c b/arch/sparc64/solaris/socket.c index 06740582717e..d3a66ea74a7f 100644 --- a/arch/sparc64/solaris/socket.c +++ b/arch/sparc64/solaris/socket.c @@ -16,6 +16,7 @@ #include <linux/net.h> #include <linux/compat.h> #include <net/compat.h> +#include <net/sock.h> #include <asm/uaccess.h> #include <asm/string.h> @@ -297,121 +298,165 @@ asmlinkage int solaris_sendmsg(int fd, struct sol_nmsghdr __user *user_msg, unsi { struct socket *sock; char address[MAX_SOCK_ADDR]; - struct iovec iov[UIO_FASTIOV]; + struct iovec iovstack[UIO_FASTIOV], *iov = iovstack; unsigned char ctl[sizeof(struct cmsghdr) + 20]; unsigned char *ctl_buf = ctl; - struct msghdr kern_msg; - int err, total_len; + struct msghdr msg_sys; + int err, ctl_len, iov_size, total_len; - if(msghdr_from_user32_to_kern(&kern_msg, user_msg)) - return -EFAULT; - if(kern_msg.msg_iovlen > UIO_MAXIOV) - return -EINVAL; - err = verify_compat_iovec(&kern_msg, iov, address, VERIFY_READ); - if (err < 0) + err = -EFAULT; + if (msghdr_from_user32_to_kern(&msg_sys, user_msg)) + goto out; + + sock = sockfd_lookup(fd, &err); + if (!sock) goto out; + + /* do not move before msg_sys is valid */ + err = -EMSGSIZE; + if (msg_sys.msg_iovlen > UIO_MAXIOV) + goto out_put; + + /* Check whether to allocate the iovec area*/ + err = -ENOMEM; + iov_size = msg_sys.msg_iovlen * sizeof(struct iovec); + if (msg_sys.msg_iovlen > UIO_FASTIOV) { + iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL); + if (!iov) + goto out_put; + } + + err = verify_compat_iovec(&msg_sys, iov, address, VERIFY_READ); + if (err < 0) + goto out_freeiov; total_len = err; - if(kern_msg.msg_controllen) { - struct sol_cmsghdr __user *ucmsg = kern_msg.msg_control; + err = -ENOBUFS; + if (msg_sys.msg_controllen > INT_MAX) + goto out_freeiov; + + ctl_len = msg_sys.msg_controllen; + if (ctl_len) { + struct sol_cmsghdr __user *ucmsg = msg_sys.msg_control; unsigned long *kcmsg; compat_size_t cmlen; - if (kern_msg.msg_controllen <= sizeof(compat_size_t)) - return -EINVAL; + err = -EINVAL; + if (ctl_len <= sizeof(compat_size_t)) + goto out_freeiov; - if(kern_msg.msg_controllen > sizeof(ctl)) { + if (ctl_len > sizeof(ctl)) { err = -ENOBUFS; - ctl_buf = kmalloc(kern_msg.msg_controllen, GFP_KERNEL); - if(!ctl_buf) + ctl_buf = kmalloc(ctl_len, GFP_KERNEL); + if (!ctl_buf) goto out_freeiov; } __get_user(cmlen, &ucmsg->cmsg_len); kcmsg = (unsigned long *) ctl_buf; *kcmsg++ = (unsigned long)cmlen; err = -EFAULT; - if(copy_from_user(kcmsg, &ucmsg->cmsg_level, - kern_msg.msg_controllen - sizeof(compat_size_t))) + if (copy_from_user(kcmsg, &ucmsg->cmsg_level, + ctl_len - sizeof(compat_size_t))) goto out_freectl; - kern_msg.msg_control = ctl_buf; + msg_sys.msg_control = ctl_buf; } - kern_msg.msg_flags = solaris_to_linux_msgflags(user_flags); + msg_sys.msg_flags = solaris_to_linux_msgflags(user_flags); - lock_kernel(); - sock = sockfd_lookup(fd, &err); - if (sock != NULL) { - if (sock->file->f_flags & O_NONBLOCK) - kern_msg.msg_flags |= MSG_DONTWAIT; - err = sock_sendmsg(sock, &kern_msg, total_len); - sockfd_put(sock); - } - unlock_kernel(); + if (sock->file->f_flags & O_NONBLOCK) + msg_sys.msg_flags |= MSG_DONTWAIT; + err = sock_sendmsg(sock, &msg_sys, total_len); out_freectl: - /* N.B. Use kfree here, as kern_msg.msg_controllen might change? */ - if(ctl_buf != ctl) - kfree(ctl_buf); + if (ctl_buf != ctl) + sock_kfree_s(sock->sk, ctl_buf, ctl_len); out_freeiov: - if(kern_msg.msg_iov != iov) - kfree(kern_msg.msg_iov); -out: + if (iov != iovstack) + sock_kfree_s(sock->sk, iov, iov_size); +out_put: + sockfd_put(sock); +out: return err; } asmlinkage int solaris_recvmsg(int fd, struct sol_nmsghdr __user *user_msg, unsigned int user_flags) { - struct iovec iovstack[UIO_FASTIOV]; - struct msghdr kern_msg; - char addr[MAX_SOCK_ADDR]; struct socket *sock; + struct iovec iovstack[UIO_FASTIOV]; struct iovec *iov = iovstack; + struct msghdr msg_sys; + unsigned long cmsg_ptr; + int err, iov_size, total_len, len; + + /* kernel mode address */ + char addr[MAX_SOCK_ADDR]; + + /* user mode address pointers */ struct sockaddr __user *uaddr; int __user *uaddr_len; - unsigned long cmsg_ptr; - int err, total_len, len = 0; - if(msghdr_from_user32_to_kern(&kern_msg, user_msg)) + if (msghdr_from_user32_to_kern(&msg_sys, user_msg)) return -EFAULT; - if(kern_msg.msg_iovlen > UIO_MAXIOV) - return -EINVAL; - uaddr = kern_msg.msg_name; + sock = sockfd_lookup(fd, &err); + if (!sock) + goto out; + + err = -EMSGSIZE; + if (msg_sys.msg_iovlen > UIO_MAXIOV) + goto out_put; + + /* Check whether to allocate the iovec area*/ + err = -ENOMEM; + iov_size = msg_sys.msg_iovlen * sizeof(struct iovec); + if (msg_sys.msg_iovlen > UIO_FASTIOV) { + iov = sock_kmalloc(sock->sk, iov_size, GFP_KERNEL); + if (!iov) + goto out_put; + } + + /* + * Save the user-mode address (verify_iovec will change the + * kernel msghdr to use the kernel address space) + */ + + uaddr = (void __user *) msg_sys.msg_name; uaddr_len = &user_msg->msg_namelen; - err = verify_compat_iovec(&kern_msg, iov, addr, VERIFY_WRITE); + err = verify_compat_iovec(&msg_sys, iov, addr, VERIFY_WRITE); if (err < 0) - goto out; + goto out_freeiov; total_len = err; - cmsg_ptr = (unsigned long) kern_msg.msg_control; - kern_msg.msg_flags = 0; + cmsg_ptr = (unsigned long) msg_sys.msg_control; + msg_sys.msg_flags = MSG_CMSG_COMPAT; - lock_kernel(); - sock = sockfd_lookup(fd, &err); - if (sock != NULL) { - if (sock->file->f_flags & O_NONBLOCK) - user_flags |= MSG_DONTWAIT; - err = sock_recvmsg(sock, &kern_msg, total_len, user_flags); - if(err >= 0) - len = err; - sockfd_put(sock); - } - unlock_kernel(); - - if(uaddr != NULL && err >= 0) - err = move_addr_to_user(addr, kern_msg.msg_namelen, uaddr, uaddr_len); - if(err >= 0) { - err = __put_user(linux_to_solaris_msgflags(kern_msg.msg_flags), &user_msg->msg_flags); - if(!err) { - /* XXX Convert cmsg back into userspace 32-bit format... */ - err = __put_user((unsigned long)kern_msg.msg_control - cmsg_ptr, - &user_msg->msg_controllen); - } + if (sock->file->f_flags & O_NONBLOCK) + user_flags |= MSG_DONTWAIT; + + err = sock_recvmsg(sock, &msg_sys, total_len, user_flags); + if(err < 0) + goto out_freeiov; + + len = err; + + if (uaddr != NULL) { + err = move_addr_to_user(addr, msg_sys.msg_namelen, uaddr, uaddr_len); + if (err < 0) + goto out_freeiov; } + err = __put_user(linux_to_solaris_msgflags(msg_sys.msg_flags), &user_msg->msg_flags); + if (err) + goto out_freeiov; + err = __put_user((unsigned long)msg_sys.msg_control - cmsg_ptr, + &user_msg->msg_controllen); + if (err) + goto out_freeiov; + err = len; - if(kern_msg.msg_iov != iov) - kfree(kern_msg.msg_iov); +out_freeiov: + if (iov != iovstack) + sock_kfree_s(sock->sk, iov, iov_size); +out_put: + sockfd_put(sock); out: - if(err < 0) - return err; - return len; + return err; } diff --git a/arch/sparc64/solaris/timod.c b/arch/sparc64/solaris/timod.c index 022c80f43392..aaad29c35c83 100644 --- a/arch/sparc64/solaris/timod.c +++ b/arch/sparc64/solaris/timod.c @@ -143,9 +143,11 @@ static struct T_primsg *timod_mkctl(int size) static void timod_wake_socket(unsigned int fd) { struct socket *sock; + struct fdtable *fdt; SOLD("wakeing socket"); - sock = SOCKET_I(current->files->fd[fd]->f_dentry->d_inode); + fdt = files_fdtable(current->files); + sock = SOCKET_I(fdt->fd[fd]->f_dentry->d_inode); wake_up_interruptible(&sock->wait); read_lock(&sock->sk->sk_callback_lock); if (sock->fasync_list && !test_bit(SOCK_ASYNC_WAITDATA, &sock->flags)) @@ -157,9 +159,11 @@ static void timod_wake_socket(unsigned int fd) static void timod_queue(unsigned int fd, struct T_primsg *it) { struct sol_socket_struct *sock; + struct fdtable *fdt; SOLD("queuing primsg"); - sock = (struct sol_socket_struct *)current->files->fd[fd]->private_data; + fdt = files_fdtable(current->files); + sock = (struct sol_socket_struct *)fdt->fd[fd]->private_data; it->next = sock->pfirst; sock->pfirst = it; if (!sock->plast) @@ -171,9 +175,11 @@ static void timod_queue(unsigned int fd, struct T_primsg *it) static void timod_queue_end(unsigned int fd, struct T_primsg *it) { struct sol_socket_struct *sock; + struct fdtable *fdt; SOLD("queuing primsg at end"); - sock = (struct sol_socket_struct *)current->files->fd[fd]->private_data; + fdt = files_fdtable(current->files); + sock = (struct sol_socket_struct *)fdt->fd[fd]->private_data; it->next = NULL; if (sock->plast) sock->plast->next = it; @@ -344,6 +350,7 @@ int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len, char *buf; struct file *filp; struct inode *ino; + struct fdtable *fdt; struct sol_socket_struct *sock; mm_segment_t old_fs = get_fs(); long args[6]; @@ -351,7 +358,9 @@ int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len, (int (*)(int, unsigned long __user *))SYS(socketcall); int (*sys_sendto)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int) = (int (*)(int, void __user *, size_t, unsigned, struct sockaddr __user *, int))SYS(sendto); - filp = current->files->fd[fd]; + + fdt = files_fdtable(current->files); + filp = fdt->fd[fd]; ino = filp->f_dentry->d_inode; sock = (struct sol_socket_struct *)filp->private_data; SOLD("entry"); @@ -620,6 +629,7 @@ int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, s32 __us int oldflags; struct file *filp; struct inode *ino; + struct fdtable *fdt; struct sol_socket_struct *sock; struct T_unitdata_ind udi; mm_segment_t old_fs = get_fs(); @@ -632,7 +642,8 @@ int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, s32 __us SOLD("entry"); SOLDD(("%u %p %d %p %p %d %p %d\n", fd, ctl_buf, ctl_maxlen, ctl_len, data_buf, data_maxlen, data_len, *flags_p)); - filp = current->files->fd[fd]; + fdt = files_fdtable(current->files); + filp = fdt->fd[fd]; ino = filp->f_dentry->d_inode; sock = (struct sol_socket_struct *)filp->private_data; SOLDD(("%p %p\n", sock->pfirst, sock->pfirst ? sock->pfirst->next : NULL)); @@ -844,12 +855,14 @@ asmlinkage int solaris_getmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3) int __user *flgptr; int flags; int error = -EBADF; + struct fdtable *fdt; SOLD("entry"); lock_kernel(); if(fd >= NR_OPEN) goto out; - filp = current->files->fd[fd]; + fdt = files_fdtable(current->files); + filp = fdt->fd[fd]; if(!filp) goto out; ino = filp->f_dentry->d_inode; @@ -910,12 +923,14 @@ asmlinkage int solaris_putmsg(unsigned int fd, u32 arg1, u32 arg2, u32 arg3) struct strbuf ctl, dat; int flags = (int) arg3; int error = -EBADF; + struct fdtable *fdt; SOLD("entry"); lock_kernel(); if(fd >= NR_OPEN) goto out; - filp = current->files->fd[fd]; + fdt = files_fdtable(current->files); + filp = fdt->fd[fd]; if(!filp) goto out; ino = filp->f_dentry->d_inode; |