| Commit message (Collapse) | Author | Age |
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Linux 3.16 fixed multiple bugs in kms pageflip completion events
and timestamping, which were originally introduced in Linux 3.13.
These fixes have been backported to all stable kernels since 3.13.
However, the userspace nouveau-ddx needs to be aware if it is
running on a kernel on which these bugs are fixed, or not.
Bump the patchlevel of the drm driver version to signal this,
so backporting this patch to stable 3.13+ kernels will give the
ddx the required info.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: <stable@vger.kernel.org> #v3.13+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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You would not believe the troubles this caused me...
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Vblank irqs don't get disabled during suspend or driver
unload, which causes irq delivery after "suspend" or
driver unload, at least until the gpu is powered off.
This could race with drm_vblank_cleanup() in the case
of nouveau and cause a use-after-free bug if the driver
is unloaded.
More annoyingly during everyday use, at least on nv50
display engine (likely also others), vblank irqs are
off after a resume from suspend, but the drm doesn't
know this, so all vblank related functionality is dead
after a resume. E.g., all windowed OpenGL clients will
hang at swapbuffers time, as well as many fullscreen
clients in many cases. This makes suspend/resume useless
if one wants to use any OpenGL apps after the resume.
In Linux 3.16, drm_vblank_on() was added, complementing
the older drm_vblank_off() to solve these problems
elegantly, so use those calls in nouveaus suspend/resume
code.
For kernels 3.8 - 3.15, we need to cherry-pick the
drm_vblank_on() patch to support this patch.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: <stable@vger.kernel.org> #v3.16
Cc: <stable@vger.kernel.org> #v3.8+: f275228: drm: Add drm_vblank_on()
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Header for tegra_powergate functions has moved to soc/tegra/pmc.h.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Add support for reclocking on GK20A, using a statically-defined pstates
table. The algorithms for calculating the coefficients and setting the
clocks are directly taken from the ChromeOS kernel.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Make nouveau_clock_create() take new two optional arguments: an array
of pstates and its size. When these are specified,
nouveau_clock_create() will use the provided pstates instead of
probing them using the BIOS.
This is useful for platforms which do not provide a BIOS, like Tegra.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Allow the clock subsystem to operate even if voltage and thermal devices
are not set for the device (for people with watercooling! ;))
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This fixes a crash when we reload Nouveau DRM.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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The DMA API is the recommended way to map pages no matter what the
underlying bus is. Use the DMA functions for page mapping and remove
currently existing wrappers.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Detect and workaround the absence of a power device so chips that do not
feature one (e.g. GK20A) can still use this driver.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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GK20A's BAR is functionally identical to NVC0's, but do not support
being ioremapped write-combined. Create a BAR instance for GK20A that
reflect that state.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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Some BARs (like GK20A's) do not support being ioremapped write-combined.
Add a boolean property to the BAR structure and handle that case in the
Nouveau BO implementation.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
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Add a platform driver for Nouveau devices declared using the device tree
or platform data. This driver currently supports GK20A on Tegra
platforms and is only compiled for these platforms if Nouveau is
enabled.
Nouveau will probe the chip type itself using the BOOT0 register, so all
this driver really needs to do is to make sure the module is powered and
its clocks active before calling nouveau_drm_platform_probe().
Heavily based on work done by Thierry Reding.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This *should* be safe these days.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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echo ac:id >> pstate # select mode when on mains power
echo dc:id >> pstate # select mode when on battery
echo id >> pstate # select mode for both
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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v2:
- s/init/fini/ typo, reported by Alex
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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As a side note.. It's a bit hard to figure out how to name this commit..
GK20A is NVEA, which is before NV108 (GK208).. Confusing.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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This removes the previous hack that worked on some boards.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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As documented at:
ftp://download.nvidia.com/open-gpu-doc/gk104-disable-graphics-power-gating/1/gk104-disable-graphics-power-gating.txt
NVIDIA were not able document the steps necessary to detect whether this
is required or not at this time. However, they did confirm that this
procedure is safe to perform unconditionally on GK104/6. GK107 does not
have the power gating feature, and it was recommended that we do not
perform these steps there as the effects were not verified.
The disable path is from observing the binary driver, and not
documented in the link above.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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Pages allocated using the DMA API have a coherent memory mapping. Make
this mapping visible to drivers so they can decide to use it instead of
creating their own redundant one.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: David Airlie <airlied@linux.ie>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux
Pull fbdev updates from Tomi Valkeinen:
- much better HDMI infoframe support for OMAP
- Cirrus Logic CLPS711X framebuffer driver
- DT support for PL11x CLCD driver
- various small fixes
* tag 'fbdev-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (35 commits)
OMAPDSS: DSI: fix depopulating dsi peripherals
video: hyperv: hyperv_fb: refresh the VM screen by force on VM panic
video: ARM CLCD: Fix DT-related build problems
drivers: video: fbdev: atmel_lcdfb.c: Add ability to inverted backlight PWM.
video: ARM CLCD: Add DT support
drm/omap: Add infoframe & dvi/hdmi mode support
OMAPDSS: HDMI: remove the unused code
OMAPDSS: HDMI5: add support to set infoframe & HDMI mode
OMAPDSS: HDMI4: add support to set infoframe & HDMI mode
OMAPDSS: HDMI: add infoframe and hdmi_dvi_mode fields
OMAPDSS: add hdmi ops to hdmi-connector and tpd12s015
OMAPDSS: add hdmi ops to hdmi_ops and omap_dss_driver
OMAPDSS: HDMI: remove custom avi infoframe
OMAPDSS: HDMI5: use common AVI infoframe support
OMAPDSS: HDMI4: use common AVI infoframe support
OMAPDSS: Kconfig: select HDMI
OMAPDSS: HDMI: fix name conflict
OMAPDSS: DISPC: clean up dispc_mgr_timings_ok
OMAPDSS: DISPC: reject interlace for lcd out
OMAPDSS: DISPC: fix debugfs reg dump
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Make the omapdrm driver use the new HDMI ops when possible.
omapdrm will call set_hdmi_mode (when available) to tell the encoder
driver whether the monitor is a DVI or HDMI monitor, and if it's an HDMI
monitor, omapdrm will call set_hdmi_infoframe to to set the AVI
infoframe.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Rob Clark <robdclark@gmail.com>
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Merge more incoming from Andrew Morton:
"Two new syscalls:
memfd_create in "shm: add memfd_create() syscall"
kexec_file_load in "kexec: implementation of new syscall kexec_file_load"
And:
- Most (all?) of the rest of MM
- Lots of the usual misc bits
- fs/autofs4
- drivers/rtc
- fs/nilfs
- procfs
- fork.c, exec.c
- more in lib/
- rapidio
- Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs,
fs/cramfs, fs/romfs, fs/qnx6.
- initrd/initramfs work
- "file sealing" and the memfd_create() syscall, in tmpfs
- add pci_zalloc_consistent, use it in lots of places
- MAINTAINERS maintenance
- kexec feature work"
* emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits)
MAINTAINERS: update nomadik patterns
MAINTAINERS: update usb/gadget patterns
MAINTAINERS: update DMA BUFFER SHARING patterns
kexec: verify the signature of signed PE bzImage
kexec: support kexec/kdump on EFI systems
kexec: support for kexec on panic using new system call
kexec-bzImage64: support for loading bzImage using 64bit entry
kexec: load and relocate purgatory at kernel load time
purgatory: core purgatory functionality
purgatory/sha256: provide implementation of sha256 in purgaotory context
kexec: implementation of new syscall kexec_file_load
kexec: new syscall kexec_file_load() declaration
kexec: make kexec_segment user buffer pointer a union
resource: provide new functions to walk through resources
kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc()
kexec: move segment verification code in a separate function
kexec: rename unusebale_pages to unusable_pages
kernel: build bin2c based on config option CONFIG_BUILD_BIN2C
bin2c: move bin2c in scripts/basic
shm: wait for pins to be released when sealing
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Remove the now unnecessary memset too.
Signed-off-by: Joe Perches <joe@perches.com>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This reverts commit b6d547791fd3ef4ccc89ad2556ab01045640aef7.
The panel self refresh clearly isn't stable yet, and causes my laptop
(Haswell ULT in a Sony Vaio Pro) to have the screen lock up. Maybe it
doesn't ever get out of self-refresh, or maybe there are gremlins in the
machine that get unhappy. Regardless, it's broken, and it gets
reverted.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This merge window brings a good size of cleanups on various platforms.
Among the bigger ones:
- Removal of Samsung s5pc100 and s5p64xx platforms. Both of these
have lacked active support for quite a while, and after asking
around nobody showed interest in keeping them around. If needed,
they could be resurrected in the future but it's more likely that
we would prefer reintroduction of them as DT and
multiplatform-enabled platforms instead.
- OMAP4 controller code register define diet. They defined a lot of
registers that were never actually used, etc.
- Move of some of the Tegra platform code (PMC, APBIO, fuse,
powergate) to drivers/soc so it can be shared with 64-bit code.
This also converts them over to traditional driver models where
possible.
- Removal of legacy gpio-samsung driver, since the last users have
been removed (moved to pinctrl)
Plus a bunch of smaller changes for various platforms that sort of
dissapear in the diffstat for the above. clps711x cleanups, shmobile
header file refactoring/moves for multiplatform friendliness, some
misc cleanups, etc"
* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
drivers: CCI: Correct use of ! and &
video: clcd-versatile: Depend on ARM
video: fix up versatile CLCD helper move
MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
MAINTAINERS: Remove Kirkwood
ARM: tegra: Convert PMC to a driver
soc/tegra: fuse: Set up in early initcall
ARM: tegra: Always lock the CPU reset vector
ARM: tegra: Setup CPU hotplug in a pure initcall
soc/tegra: Implement runtime check for Tegra SoCs
soc/tegra: fuse: fix dummy functions
soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
soc/tegra: Add efuse and apbmisc bindings
soc/tegra: Add efuse driver for Tegra
ARM: tegra: move fuse exports to soc/tegra/fuse.h
ARM: tegra: export apb dma readl/writel
ARM: tegra: Use a function to get the chip ID
ARM: tegra: Sort includes alphabetically
ARM: tegra: Move includes to include/soc/tegra
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/cleanup
Merge "Samsung cleanup for v3.17" from Kukjin Kim:
Most of them are for exynos SoCs, remove useless codes and update for
PMU consolidation.
- remove unnecessary header file in mach-exynos/pmu.c
- remove unused code in mach-exynos/common.h
- remove mach-exynos/regs-pmu.h dependency from PD
- remove file path from comment section in mach-exynos
- move SYSREG definitions into mach-exynos/regs-sys.h
- add mapping PMU base address via DT for PMU cleanup
- use staic in mach-exynos/common.h
- update Samsung UART config options for low-level debug
* tag 'samsung-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Add support for mapping PMU base address via DT
ARM: EXYNOS: Remove "linux/bug.h" from pmu.c
ARM: EXYNOS: Remove regs-pmu.h header dependency from pm_domain
ARM: EXYNOS: Remove file path from comment section
ARM: EXYNOS: Move SYSREG definition into sys-reg specific file
ARM: EXYNOS: Make exynos machine_ops as static
ARM: EXYNOS: Remove unused code in common.h
ARM: debug: Update Samsung UART config options
+ Linux 3.16-rc5
Signed-off-by: Olof Johansson <olof@lixom.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/cleanup
Merge "ARM: tegra: core code changes for 3.17" from Thierry Reding:
Some of the code that's currently called from the Tegra machine setup
code is moved to regular initcalls. To catch dependency violations, the
various code paths now WARN if they're called to early. Not all of the
potential candidates are converted yet, but those that were have been
verified to work across all supported Tegra generations.
A new function, soc_is_tegra(), is also provided to make sure that the
initcalls can abort early if they aren't run on Tegra, which can happen
for multi-platform builds.
Finally this also moves out the PMC driver to drivers/soc/tegra so that
it can be shared with 64-bit ARM.
This is based on the for-3.17/fuse-move branch. The split is somewhat
arbitrary but allows the dependents of the for-3.17/fuse-move to pull
in as little code as necessary.
* tag 'tegra-for-3.17-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
ARM: tegra: Convert PMC to a driver
soc/tegra: fuse: Set up in early initcall
ARM: tegra: Always lock the CPU reset vector
ARM: tegra: Setup CPU hotplug in a pure initcall
soc/tegra: Implement runtime check for Tegra SoCs
Signed-off-by: Olof Johansson <olof@lixom.net>
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This commit converts the PMC support code to a platform driver. Because
the boot process needs to call into this driver very early, also set up
a minimal environment via an early initcall.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/cleanup
Merge "ARM: tegra: move fuse code out of arch/arm" from Thierry Reding:
This branch moves code related to the Tegra fuses out of arch/arm and
into a centralized location which could be shared with ARM64. It also
adds support for reading the fuse data through sysfs.
Included is also some preparatory work that moves Tegra-related header
files from include/linux to include/soc/tegra as suggested by Arnd.
Furthermore the Tegra chip ID is now retrieved using a function rather
than a variable so that sanity checks can be done. This is convenient
in subsequent patches that will move some of the code that's currently
called from Tegra machine setup into regular initcalls so that it can
be reused on 64-bit ARM. The sanity checks help with verifying that no
code tries to obtain the Tegra chip ID before the underlying driver is
properly initialized.
* tag 'tegra-for-3.17-fuse-move' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux:
soc/tegra: fuse: fix dummy functions
soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
soc/tegra: Add efuse and apbmisc bindings
soc/tegra: Add efuse driver for Tegra
ARM: tegra: move fuse exports to soc/tegra/fuse.h
ARM: tegra: export apb dma readl/writel
ARM: tegra: Use a function to get the chip ID
ARM: tegra: Sort includes alphabetically
ARM: tegra: Move includes to include/soc/tegra
Signed-off-by: Olof Johansson <olof@lixom.net>
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In order to not clutter the include/linux directory with SoC specific
headers, move the Tegra-specific headers out into a separate directory.
Signed-off-by: Thierry Reding <treding@nvidia.com>
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git://anongit.freedesktop.org/drm-intel
Pull intel drm fixes from Daniel Vetter:
"So I heard that proper pull requests have a revert on top ;-) So here
we go with my usual mid-merge-window pile of fixes.
[ Ed. This revert thing had better not become the "in" thing ]
Big fix is the duct-tape for ring init on g4x platforms, we seem to
have found the magic again to make those machines as happy as before
(not perfect though unfortunately, but that was never the case).
Otherwise fixes all over:
- tune down some overzealous debug output
- VDD power sequencing fix after resume
- bunch of dsi fixes for baytrail among them hw state checker
de-noising
- bunch of error state capture fixes for bdw
- misc tiny fixes/workarounds for various platforms
Last minute rebase was to kick out two patches that shouldn't have
been in here - they're for the state checker, so 0 functional code
affected.
Jani's back from vacation, so he'll take over -fixes from here"
* tag 'drm-intel-fixes-2014-08-08' of git://anongit.freedesktop.org/drm-intel: (21 commits)
Revert "drm/i915: Enable semaphores on BDW"
drm/i915: read HEAD register back in init_ring_common() to enforce ordering
drm/i915: Fix crash when failing to parse MIPI VBT
drm/i915: Bring GPU Freq to min while suspending.
drm/i915: Fix DEIER and GTIER collecting for BDW.
drm/i915: Don't accumulate hangcheck score on forward progress
drm/i915: Add the WaCsStallBeforeStateCacheInvalidate:bdw workaround.
drm/i915: Refactor Broadwell PIPE_CONTROL emission into a helper.
drm/i915: Fix threshold for choosing 32 vs. 64 precisions for VLV DDL values
drm/i915: Fix drain latency precision multipler for VLV
drm/i915: Collect gtier properly on HSW.
drm/i915: Tune down MCH_SSKPD values warning
drm/i915: Tune done rc6 enabling output
drm/i915: Don't require dev->struct_mutex in psr_match_conditions
drm/i915: Fix error state collecting
drm/i915: fix VDD state tracking after system resume
drm/i915: Add correct hw/sw config check for DSI encoder
drm/i915: factor out intel_edp_panel_vdd_sanitize
drm/i915: wait for all DSI FIFOs to be empty
drm/i915: work around warning in i915_gem_gtt
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This reverts commit 521e62e49a42661a4ee0102644517dbe2f100a23.
Although POST_SYNC brought a bit of stability to Semaphores on BDW
it didn't solved all issues and some hungs can still occour when
semaphores are enabled on BDW. Also some sloweness can be found on some
igt tests, althoguth it apparently doesn't affect real workloads.
Besides that, no real performance gain was found on our tests with different
and even multiple workloads.
Let's disable it again for now. At least until we are sure it is safe
to re-enable it.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Withtout this, ring initialization fails reliabily during resume with
[drm:init_ring_common] *ERROR* render ring initialization failed ctl 0001f001 head ffffff8804 tail 00000000 start 000e4000
This is not a complete fix, but it is verified to make the ring
initialization failures during resume much less likely.
We were not able to root-cause this bug (likely HW-specific to Gen4 chips)
yet. This is therefore used as a ducttape before problem is fully
understood and proper fix created, so that people don't suffer from
completely unusable systems in the meantime.
The discussion and debugging is happening at
https://bugs.freedesktop.org/show_bug.cgi?id=76554
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This particular nasty presented itself while trying to register the
intelfb device (intel_fbdev.c). During the process of registering the device
the driver will disable the crtc via i9xx_crtc_disable. These will
also disable the panel using the generic mipi panel functions in
dsi_mod_vbt_generic.c. The stale MIPI generic data sequence pointers would
cause a crash within those functions. However, all of this is happening
while console_lock is held from do_register_framebuffer inside fbcon.c. Which
means that you got kernel log and just the device appearing to reboot/hang for
no apparent reason.
The fault started from the FB_EVENT_FB_REGISTERED event using the
fb_notifier_call_chain call in fbcon.c.
This regression has been introduced in
commit d3b542fcfc72d7724585e3fd2c5e75351bc3df47
Author: Shobhit Kumar <shobhit.kumar@intel.com>
Date: Mon Apr 14 11:00:34 2014 +0530
drm/i915: Add parsing support for new MIPI blocks in VBT
Cc: Shobhit Kumar <shobhit.kumar@intel.com>
Signed-off-by: Rafael Barbalho <rafael.barbalho@intel.com>
Reviewed-by: Shobhit Kumar <shobhit.kumar@intel.com>
[danvet: Add regression citation.]
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We might be leaving the PGU Frequency (and thus vnn) high during the suspend.
Flusing the delayed work queue should take care of this.
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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BDW has many other Display Engine interrupts and GT interrupts registers.
Collecting it properly on gpu_error_state.
On debugfs all was properly listed already but besides we were also listing old
DEIER and GTIER that doesn't exist on BDW anymore. This was causing
unclaimed register messages
v2: Fix small issues of first version and don't read DEIER regs when pipe's
power well is disabled
v3: bikeshed accepted: use enum pipe pipe instead of int i for pipe interection
v4: Ben notice previous version was checking for display_power_enabled without
using propper locks. Using _unlocked version isn't reliable and we cannot
get this registers when power well is off. So let's avoid getting all DE_IER
per pipe for now. If someone think this is an useful information it can be
added later.
v5: Ben: put back debugfs stuff that might be coverred by pm_get and use
gen >= 8 trying to predict future.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=81701
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: (v3) Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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If the actual head has progressed forward inside a batch (request),
don't accumulate hangcheck score.
As the hangcheck score in increased only by acthd jumping backwards,
the result is that we only declare an active batch as stuck if it is
trapped inside a loop. Or that the looping will dominate the batch
progression so that it overcomes the bonus that forward progress gives.
v2: Improved commit message (Chris Wilson)
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
[danvet: s/active_loop/active (loop)/ as requested by Chris.]
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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On Broadwell, any PIPE_CONTROL with the "State Cache Invalidate" bit set
must be preceded by a PIPE_CONTROL with the "CS Stall" bit set.
Documented on the BSpec 3D workarounds page.
Reviewed-by: Rafael Barbalho <rafael.barbalho@intel.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
[vsyrjala: add chv w/a note too]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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We'll want to reuse this for a workaround.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
[danvet: Rmove now unused int.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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The DDL registers can hold 7bit numbers. Make the most of those seven
bits by adjusting the threshold where we switch between the 64 vs. 32
precision multipliers.
Also we compute 'entries' to make the decision about precision, and then
we recompute the same value to calculate the actual drain latency. Just
use the already calculate 'entries' there.
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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