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| * | | | | | | | | | | GPU: ipu: fix lockup caused by pending chained interruptsRussell King2015-07-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Even with the oops fixed by a previous patch, the system still fails to kexec, due to a stuck chained interrupt locking the system. We must disable the child interrupts prior to setting up the irq chip to ensure we don't get stuck here. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
| * | | | | | | | | | | drm/imx: parallel-display: fix drm_panel supportPhilipp Zabel2015-07-10
| | |_|/ / / / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The parallel-display driver used an undocumented, non-standard property "fsl,panel" to optionally associate with a drm_panel device. This patch fixes the driver to use the same OF graph bindings as the LDB driver instead: parallel-display { compatible = "fsl,imx-parallel-display"; ... port@1 { reg = <1>; parallel_out: endpoint { remote_endpoint = <&panel_in>; }; }; }; panel { ... port { panel_in: endpoint { remote-endpoint = <&parallel_out>; }; }; }; Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Tested-by: Gary Bisson <gary.bisson@boundarydevices.com>
* | | | | | | | | | | Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm ↵Dave Airlie2015-07-17
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into drm-fixes A range of fixes for the Armada DRM driver: - A missing wakeup could result in overlay frames being delayed, causing video playback to hiccup. - Avoid unmapping a dma-buf attachment which was never mapped - Fix the overlay when partially off the screen by switching to the drm_plane_helper_check_update() helper and using the calculated coordinates to set the start address. - Remove an incorrect assignment to crtc->mode - which should be the unadjusted mode. - Fix a missing call to drm_plane_cleanup() in the overlay code. * 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: drm/armada: avoid saving the adjusted mode to crtc->mode drm/armada: fix overlay when partially off-screen drm/armada: convert overlay to use drm_plane_helper_check_update() drm/armada: fix gem object free after failed prime import drm/armada: fix incorrect overlay plane cleanup drm/armada: fix missing overlay wake-up
| * | | | | | | | | | | drm/armada: avoid saving the adjusted mode to crtc->modeRussell King2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're not supposed to store the adjusted mode into crtc->mode. We don't use it anyway, so we can safely remove this. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | drm/armada: fix overlay when partially off-screenRussell King2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the start address calculation when overlay is partially off screen. fb->bits_per_pixel is not set for YUV formats, and is always zero, which led to the first component always starting at zero. Use drm_format_plane_cpp() instead. This also revealed a problem in that YUYV formats toggle the U/V data for odd pixel start address offsets. We try to rectify that by toggling the U/V swap, which for the most part works, but seemingly introduces a flicker for one scan frame of swapped U/V. However, these changes result in an overall improvement. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | drm/armada: convert overlay to use drm_plane_helper_check_update()Russell King2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use drm_plane_helper_check_update() rather than our own code to validate and limit the size of the displayed image. As we are able to support scaling, permit the full scaling ability. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | drm/armada: fix gem object free after failed prime importRussell King2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the gem object freeing after a partial import of a dma buffer, eg, one which has been imported, but not mapped. This was provoking a warning from the dma_buf code. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | drm/armada: fix incorrect overlay plane cleanupRussell King2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The Armada overlay plane wasn't being properly cleaned up as it was missing a call to drm_plane_cleanup(). It also wasn't freeing the right type of pointer (although we were still freeing the right pointer value.) Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | | | | | | | | | | drm/armada: fix missing overlay wake-upRussell King2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nothing was waking up the overlay plane wait queue, so we were fully reliant on the HZ/25 wait timing out to make progress. Fix the lack of wake-up. We were also mis-handling the wait_event_timeout() return value - this returns an unsigned integer of the remaining time, or zero on timeout and the condition evaluated false. Checking this for less than zero is not sane. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | | | | | | | | | | | Merge tag 'drm-intel-fixes-2015-07-15' of ↵Dave Airlie2015-07-17
|\ \ \ \ \ \ \ \ \ \ \ \ | | |_|_|_|_|_|_|_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-fixes Next batch of i915 fixes. Note that the compat32 patch here needs the drm core one to be actually useful, I'll send you that one with a separate drm-fixes pull request. One revert because a fix in -rc2 did break existing userspace. * tag 'drm-intel-fixes-2015-07-15' of git://anongit.freedesktop.org/drm-intel: drm/i915: Do not call intel_crtc_disable if the crtc is already disabled. Revert "drm/i915: Declare the swizzling unknown for L-shaped configurations" drm/i915: Forward all core DRM ioctls to core compat handling drm/i915: fix oops in primary_check_plane drm/i915: remove unused has_dma_mapping flag drm/i915: Fix missing return warning for !CONFIG_DEBUGFS drm/i915: avoid leaking DMA mappings drm/i915: Snapshot seqno of most recently submitted request. drm/i915: Store device pointer in contexts for late tracepoint usafe
| * | | | | | | | | | | drm/i915: Do not call intel_crtc_disable if the crtc is already disabled.Maarten Lankhorst2015-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When resuming with dpms off, the following warn can happen: [ 118.334082] ------------[ cut here ]------------ [ 118.334105] WARNING: CPU: 2 PID: 2274 at drivers/gpu/drm/i915/intel_display.c:6319 __intel_set_mode+0xae5/0xb90 [i915]() [ 118.334106] WARN_ON(!crtc->state->enable) [ 118.334137] Modules linked in: i915 [ 118.334139] CPU: 2 PID: 2274 Comm: kworker/u16:117 Not tainted 4.2.0-rc2-fixes+ #4148 [ 118.334140] Hardware name: LENOVO 2349AV8/2349AV8, BIOS G1ETA5WW (2.65 ) 04/15/2014 [ 118.334144] Workqueue: events_unbound async_run_entry_fn [ 118.334147] ffffffffc017eef0 ffff8800ada93998 ffffffff817aa62a 0000000080000001 [ 118.334149] ffff8800ada939e8 ffff8800ada939d8 ffffffff810807e1 ffff8800ada939c8 [ 118.334151] ffff8800cea3b3d8 0000000000000000 ffff8800ad86b008 ffff880117705668 [ 118.334151] Call Trace: [ 118.334155] [<ffffffff817aa62a>] dump_stack+0x4f/0x7b [ 118.334157] [<ffffffff810807e1>] warn_slowpath_common+0x81/0xc0 [ 118.334158] [<ffffffff81080861>] warn_slowpath_fmt+0x41/0x50 [ 118.334173] [<ffffffffc0120375>] __intel_set_mode+0xae5/0xb90 [i915] [ 118.334188] [<ffffffffc0121312>] ? intel_modeset_compute_config+0x52/0xb40 [i915] [ 118.334191] [<ffffffff8144de53>] ? drm_atomic_set_fb_for_plane+0x63/0x80 [ 118.334205] [<ffffffffc01269d9>] intel_set_mode+0x29/0x60 [i915] [ 118.334219] [<ffffffffc012730a>] intel_crtc_restore_mode+0x13a/0x1f0 [i915] [ 118.334232] [<ffffffffc0101160>] ? gen6_write16+0x250/0x250 [i915] [ 118.334246] [<ffffffffc01283ec>] intel_modeset_setup_hw_state+0x89c/0xcd0 [i915] [ 118.334248] [<ffffffff8137d260>] ? pci_pm_thaw+0x90/0x90 [ 118.334255] [<ffffffffc00ac11b>] i915_drm_resume+0xcb/0x160 [i915] [ 118.334262] [<ffffffffc00ac1d2>] i915_pm_resume+0x22/0x30 [i915] [ 118.334263] [<ffffffff8137d2c3>] pci_pm_resume+0x63/0xa0 [ 118.334266] [<ffffffff81467550>] dpm_run_callback+0x70/0x420 [ 118.334267] [<ffffffff81467cbd>] device_resume+0x9d/0x1c0 [ 118.334269] [<ffffffff814673d0>] ? initcall_debug_start+0x60/0x60 [ 118.334270] [<ffffffff81467dfc>] async_resume+0x1c/0x50 [ 118.334271] [<ffffffff810a6a94>] async_run_entry_fn+0x34/0xd0 [ 118.334273] [<ffffffff8109d4ad>] process_one_work+0x1dd/0x7e0 [ 118.334275] [<ffffffff8109d41a>] ? process_one_work+0x14a/0x7e0 [ 118.334276] [<ffffffff8109daf9>] worker_thread+0x49/0x450 [ 118.334278] [<ffffffff8109dab0>] ? process_one_work+0x7e0/0x7e0 [ 118.334280] [<ffffffff810a3cb9>] kthread+0xf9/0x110 [ 118.334282] [<ffffffff810a3bc0>] ? insert_kthread_work+0x90/0x90 [ 118.334284] [<ffffffff817b414f>] ret_from_fork+0x3f/0x70 [ 118.334286] [<ffffffff810a3bc0>] ? insert_kthread_work+0x90/0x90 [ 118.334287] ---[ end trace 01f2cf6371b82d7a ]--- This warn is harmless, and can be fixed by not calling intel_crtc_disable when the crtc is already disabled. Reported-and-Tested-by: Jörg Otte <jrg.otte@gmail.com> Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | Revert "drm/i915: Declare the swizzling unknown for L-shaped configurations"Daniel Vetter2015-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 19ee835cdb0b5a8eb11a68f25a51b8039d564488. It breaks existing old userspace which doesn't handle UNKNOWN swizzling correct. Yes UNKNOWN was a thing back in 2009 and probably still is on some other platforms, but it still pretty clearly broke the testers machine. If we want this we need to extend the ioctl with new paramters that only new userspace looks at. Cc: Harald Arnesen <harald@skogtun.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reported-by: Harald Arnesen <harald@skogtun.org> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
| * | | | | | | | | | | drm/i915: Forward all core DRM ioctls to core compat handlingTvrtko Ursulin2015-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Previously only core DRM ioctls under the DRM_COMMAND_BASE were being forwarded, but the drm.h header suggests (and reality confirms) ones after (and including) DRM_COMMAND_END should be forwarded as well. We need this to correctly forward the compat ioctl for the botched-up addfb2.1 extension. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: stable@vger.kernel.org # 4.1+ [danvet: Explain why this is suddenly needed and add cc: stable.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | drm/i915: fix oops in primary_check_planeDaniel Vetter2015-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Sun, Jul 12, 2015 at 09:52:51AM -0700, Linus Torvalds wrote: > On Sun, Jul 12, 2015 at 1:03 AM, Jörg Otte <jrg.otte@gmail.com> wrote: > > BUG: unable to handle kernel NULL pointer dereference at 0000000000000009 > > IP: [<ffffffffbd3447bb>] 0xffffffffbd3447bb > > Ugh. Please enable KALLSYMS to get sane symbols. > > But yes, "crtc_state->base.active" is at offset 9 from "crtc_state", > so it's pretty clearly just that change frm > > - if (intel_crtc->active) { > + if (crtc_state->base.active) { > > and "crtc_state" is NULL. > > And the code very much knows that crtc_state can be NULL, since it's > initialized with > > crtc_state = state->base.state ? > intel_atomic_get_crtc_state(state->base.state, > intel_crtc) : NULL; > > Tssk. Daniel? Should I just revert that commit dec4f799d0a4 > ("drm/i915: Use crtc_state->active in primary check_plane func") for > now, or is there a better fix? Like just checking crtc_state for NULL? Indeed embarrassing. I've missed that we still have 1 caller left that's using the transitional helpers, and those don't fill out plane_state->state backpointers to the global atomic update since there is no global atomic update for transitional helpers. Below diff should fix this - we need to preferentially check crts_state->active and if that's not set intel_crtc->active should yield the right result for the one remaining caller (it's in the crtc_disable paths). This fixes a regression introduced in commit dec4f799d0a4c9edae20512fa60b0a36f3299ca2 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Tue Jul 7 11:15:47 2015 +0200 drm/i915: Use crtc_state->active in primary check_plane func which was quickly reverted in commit 01e2d0627a9a6edb24c37db45db5ecb31e9de808 Author: Linus Torvalds <torvalds@linux-foundation.org> Date: Sun Jul 12 15:00:20 2015 -0700 Revert "drm/i915: Use crtc_state->active in primary check_plane func" Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Jörg Otte <jrg.otte@gmail.com> Reported-and-tested-by: Jörg Otte <jrg.otte@gmail.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
| * | | | | | | | | | | drm/i915: remove unused has_dma_mapping flagImre Deak2015-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After the previous patch this flag will check always clear, as it's never set for shmem backed and userptr objects, so we can remove it. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Yeah this isn't really fixes but it's a nice cleanup to clarify the code but not really worth the hassle of backmerging. So just add to -fixes, we're still early in -rc.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | drm/i915: Fix missing return warning for !CONFIG_DEBUGFSDaniel Vetter2015-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This broken code was introduced in commit aa7471d228eb6dfddd0d201ea9746d6a2020972a Author: Jani Nikula <jani.nikula@intel.com> Date: Wed Apr 1 11:15:21 2015 +0300 drm/i915: add i915 specific connector debugfs file for DPCD v2: Drop hunk that accidentally crept in. Cc: Jani Nikula <jani.nikula@intel.com> Cc: Bob Paauwe <bob.j.paauwe@intel.com> Cc: François Valenduc <francoisvalenduc@gmail.com> Reported-by: François Valenduc <francoisvalenduc@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
| * | | | | | | | | | | drm/i915: avoid leaking DMA mappingsImre Deak2015-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have 3 types of DMA mappings for GEM objects: 1. physically contiguous for stolen and for objects needing contiguous memory 2. DMA-buf mappings imported via a DMA-buf attach operation 3. SG DMA mappings for shmem backed and userptr objects For 1. and 2. the lifetime of the DMA mapping matches the lifetime of the corresponding backing pages and so in practice we create/release the mapping in the object's get_pages/put_pages callback. For 3. the lifetime of the mapping matches that of any existing GPU binding of the object, so we'll create the mapping when the object is bound to the first vma and release the mapping when the object is unbound from its last vma. Since the object can be bound to multiple vmas, we can end up creating a new DMA mapping in the 3. case even if the object already had one. This is not allowed by the DMA API and can lead to leaked mapping data and IOMMU memory space starvation in certain cases. For example HW IOMMU drivers (intel_iommu) allocate a new range from their memory space whenever a mapping is created, silently overriding a pre-existing mapping. Fix this by moving the creation/removal of DMA mappings to the object's get_pages/put_pages callbacks. These callbacks already check for and do an early return in case of any nested calls. This way objects of the 3. case also become more like the other object types. I noticed this issue by enabling DMA debugging, which got disabled after a while due to its internal mapping tables getting full. It also reported errors in connection to random other drivers that did a DMA mapping for an address that was previously mapped by i915 but was never released. Besides these diagnostic messages and the memory space starvation problem for IOMMUs, I'm not aware of this causing a real issue. The fix is based on a patch from Chris. v2: - move the DMA mapping create/remove calls to the get_pages/put_pages callbacks instead of adding new callbacks for these (Chris) v3: - also fix the get_page cache logic on the userptr async path (Chris) Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | drm/i915: Snapshot seqno of most recently submitted request.Tomas Elf2015-07-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The hang checker needs to inspect whether or not the ring request list is empty as well as if the given engine has reached or passed the most recently submitted request. The problem with this is that the hang checker cannot grab the struct_mutex, which is required in order to safely inspect requests since requests might be deallocated during inspection. In the past we've had kernel panics due to this very unsynchronized access in the hang checker. One solution to this problem is to not inspect the requests directly since we're only interested in the seqno of the most recently submitted request - not the request itself. Instead the seqno of the most recently submitted request is stored separately, which the hang checker then inspects, circumventing the issue of synchronization from the hang checker entirely. This fixes a regression introduced in commit 44cdd6d219bc64f6810b8ed0023a4d4db9e0fe68 Author: John Harrison <John.C.Harrison@Intel.com> Date: Mon Nov 24 18:49:40 2014 +0000 drm/i915: Convert 'ring_idle()' to use requests not seqnos v2 (Chris Wilson): - Pass current engine seqno to ring_idle() from i915_hangcheck_elapsed() rather than compute it over again. - Remove extra whitespace. Issue: VIZ-5998 Signed-off-by: Tomas Elf <tomas.elf@intel.com> Cc: stable@vger.kernel.org Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> [danvet: Add regressing commit citation provided by Chris.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | drm/i915: Store device pointer in contexts for late tracepoint usafeChris Wilson2015-07-13
| | |_|_|_|/ / / / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [ 1572.417121] BUG: unable to handle kernel NULL pointer dereference at (null) [ 1572.421010] IP: [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] [ 1572.424970] PGD 1766a3067 PUD 1767a2067 PMD 0 [ 1572.428892] Oops: 0000 [#1] SMP [ 1572.432787] Modules linked in: ipv6 dm_mod iTCO_wdt iTCO_vendor_support snd_hda_codec_realtek snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hda_core snd_hwdep snd_pcm snd_timer snd soundcore serio_raw pcspkr lpc_ich i2c_i801 mfd_core battery ac acpi_cpufreq i915 button video drm_kms_helper drm [ 1572.441720] CPU: 2 PID: 18853 Comm: kworker/u8:0 Not tainted 4.0.0_kcloud_3f0360_20150429+ #588 [ 1572.446298] Workqueue: i915 i915_gem_retire_work_handler [i915] [ 1572.450876] task: ffff880002f428f0 ti: ffff880035724000 task.ti: ffff880035724000 [ 1572.455557] RIP: 0010:[<ffffffffa00b2514>] [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] [ 1572.460423] RSP: 0018:ffff880035727ce8 EFLAGS: 00010286 [ 1572.465262] RAX: ffff880073f1643c RBX: ffff880002da9058 RCX: ffff880073e5db40 [ 1572.470179] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880035727ce8 [ 1572.475107] RBP: ffff88007bb11a00 R08: 0000000000000000 R09: 0000000000000000 [ 1572.480034] R10: 0000000000362200 R11: 0000000000000008 R12: 0000000000000000 [ 1572.484952] R13: ffff880035727d78 R14: ffff880002dc1c98 R15: ffff880002dc1dc8 [ 1572.489886] FS: 0000000000000000(0000) GS:ffff88017fd00000(0000) knlGS:0000000000000000 [ 1572.494883] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1572.499859] CR2: 0000000000000000 CR3: 000000017572a000 CR4: 00000000001006e0 [ 1572.504842] Stack: [ 1572.509834] ffff88017b0090c0 ffff880073f16438 ffff880002da9058 ffff880073f1643c [ 1572.514904] 0000000000000246 ffff880100000000 ffff88007bb11a00 ffff880002ddeb10 [ 1572.519985] ffff8801759f79c0 ffffffffa0092ff0 0000000000000000 ffff88007bb11a00 [ 1572.525049] Call Trace: [ 1572.530093] [<ffffffffa0092ff0>] ? i915_gem_context_free+0xa8/0xc1 [i915] [ 1572.535227] [<ffffffffa009b969>] ? i915_gem_request_free+0x4e/0x50 [i915] [ 1572.540347] [<ffffffffa00b5533>] ? intel_execlists_retire_requests+0x14c/0x159 [i915] [ 1572.545500] [<ffffffffa009d9ea>] ? i915_gem_retire_requests+0x9d/0xeb [i915] [ 1572.550664] [<ffffffffa009dd8c>] ? i915_gem_retire_work_handler+0x4c/0x61 [i915] [ 1572.555825] [<ffffffff8104ca7f>] ? process_one_work+0x1b2/0x31d [ 1572.560951] [<ffffffff8104d278>] ? worker_thread+0x24d/0x339 [ 1572.566033] [<ffffffff8104d02b>] ? cancel_delayed_work_sync+0xa/0xa [ 1572.571140] [<ffffffff81050b25>] ? kthread+0xce/0xd6 [ 1572.576191] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 [ 1572.581228] [<ffffffff8179b3c8>] ? ret_from_fork+0x58/0x90 [ 1572.586259] [<ffffffff81050a57>] ? kthread_create_on_node+0x162/0x162 [ 1572.591318] Code: de 48 89 e7 e8 09 4d 00 e1 48 85 c0 74 27 48 89 68 10 48 8b 55 38 48 89 e7 48 89 50 18 48 8b 55 10 48 8b 12 48 8b 12 48 8b 52 38 <8b> 12 89 50 08 e8 95 4d 00 e1 48 83 c4 30 5b 5d 41 5c c3 41 55 [ 1572.596981] RIP [<ffffffffa00b2514>] ftrace_raw_event_i915_context+0x5d/0x70 [i915] [ 1572.602464] RSP <ffff880035727ce8> [ 1572.607911] CR2: 0000000000000000 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90112#c23 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | | | | | | | | | | Merge tag 'topic/drm-fixes-2015-07-16' of ↵Dave Airlie2015-07-17
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-fixes Ok next attempt at drm-fixes pull. Big thing really is just the compat32 one for addfb2.1. * tag 'topic/drm-fixes-2015-07-16' of git://anongit.freedesktop.org/drm-intel: drm: Provide compat ioctl for addfb2.1 Documentation: drm: Fix tablulation in KMS properties table drm: add a check for x/y in drm_mode_setcrtc drm/rockchip: use drm_gem_mmap helpers
| * | | | | | | | | | | drm: Provide compat ioctl for addfb2.1Tvrtko Ursulin2015-07-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Frame buffer modifiers extensions provided in; commit e3eb3250d84ef97b766312345774367b6a310db8 Author: Rob Clark <robdclark@gmail.com> Date: Thu Feb 5 14:41:52 2015 +0000 drm: add support for tiled/compressed/etc modifier in addfb2 Missed the structure packing/alignment problem where 64-bit members were added after the odd number of 32-bit ones. This makes the compiler produce structures of different sizes under 32- and 64-bit x86 targets and makes the ioctl need explicit compat handling. v2: Removed the typedef. (Daniel Vetter) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Cc: Rob Clark <robdclark@gmail.com> Cc: Daniel Stone <daniels@collabora.com> Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: stable@vger.kernel.org [danvet: Squash in compile fix from Mika.] Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | drm: add a check for x/y in drm_mode_setcrtcZhao Junwang2015-07-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | legacy setcrtc ioctl does take a 32 bit value which might indeed overflow the checks of crtc_req->x > INT_MAX and crtc_req->y > INT_MAX aren't needed any more with this v2: -polish the annotation according to Daniel's comment Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Zhao Junwang <zhjwpku@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | drm/rockchip: use drm_gem_mmap helpersDaniel Kurtz2015-07-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rather than (incompletely [0]) re-implementing drm_gem_mmap() and drm_gem_mmap_obj() helpers, call them directly from the rockchip mmap routines. Once the core functions return successfully, the rockchip mmap routines can still use dma_mmap_attrs() to simply mmap the entire buffer. [0] Previously, we were performing the mmap() without first taking a reference on the underlying gem buffer. This could leak ptes if the gem object is destroyed while userspace is still holding the mapping. Signed-off-by: Daniel Kurtz <djkurtz@chromium.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
* | | | | | | | | | | | drm/amdgpu/dce8: Re-set VBLANK interrupt state when enabling a CRTCMichel Dänzer2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Something (ATOM BIOS?) seems to be clobbering the LB_INTERRUPT_MASK register while the CRTC is off, which caused e.g. glxgears or gnome-shell to hang after a modeset. Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
* | | | | | | | | | | | drm/radeon/ci: silence a harmless PCC warningAlex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This has been a source of confusion. Make it debug only. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* | | | | | | | | | | | drm/amdgpu/cz: silence some dpm debug outputAlex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/amdgpu/cz: store the forced dpm levelAlex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | So the selected forced level shows up properly in sysfs. Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/amdgpu/cz: unforce dpm levels before forcing to low/highAlex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is necessary to properly reset the min/max limits before clamping them otherwise we may get improper clamping depending on what what was the last forced level. Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/amdgpu: remove bogus check in gfx8 rb setupAlex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Always respect the harvest configuration as is. Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/amdgpu: set proper index/data pair for smc regs on CZ (v2)Alex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | v2: squash in later fix Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/amdgpu: disable the IP module if early_init returns -ENOENT (v2)Alex Deucher2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we run into a part with a harvest configuration where the entire IP block is unusable, just disable the IP block. v2: fix logic as noted by Christian Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/amdgpu: stop context leak in the error pathChristian König2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
* | | | | | | | | | | | drm/amdgpu: validate the context id in the dependenciesChristian König2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Just to make sure userspace don't send nonsense to the kernel. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com>
* | | | | | | | | | | | drm/radeon: fix user ptr race conditionChristian König2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Port of amdgpu patch 9298e52f8b51d1e4acd68f502832f3a97f8cf892. Signed-off-by: Christian König <christian.koenig@amd.com> CC: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
* | | | | | | | | | | | drm/radeon: Don't flush the GART TLB if rdev->gart.ptr == NULLMichel Dänzer2015-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This can be the case when the GPU is powered off, e.g. via vgaswitcheroo or runpm. When the GPU is powered up again, radeon_gart_table_vram_pin flushes the TLB after setting rdev->gart.ptr to non-NULL. Fixes panic on powering off R7xx GPUs. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=61529 Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* | | | | | | | | | | | drm/radeon: add a dpm quirk for Sapphire Radeon R9 270X 2GB GDDR5Alex Deucher2015-07-16
| |/ / / / / / / / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bug: https://bugs.freedesktop.org/show_bug.cgi?id=76490 Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org
* | | | | | | | | | | Revert "drm/i915: Use crtc_state->active in primary check_plane func"Linus Torvalds2015-07-12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit dec4f799d0a4c9edae20512fa60b0a36f3299ca2. Jörg Otte reports a NULL pointder dereference due to this commit, as 'crtc_state' very much can be NULL: crtc_state = state->base.state ? intel_atomic_get_crtc_state(state->base.state, intel_crtc) : NULL; So the change to test 'crtc_state->base.active' cannot possibly be correct as-is. There may be some other minimal fix (like just checking crtc_state for NULL), but I'm just reverting it now for the rc2 release, and people like Daniel Vetter who actually know this code will figure out what the right solution is in the longer term. Reported-and-bisected-by: Jörg Otte <jrg.otte@gmail.com> Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Cc: Daniel Vetter <daniel.vetter@intel.com> CC: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | | | | | | Merge tag 'omapdrm-4.2-fixes' of ↵Dave Airlie2015-07-10
|\ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-fixes omapdrm fixes for 4.2 Small fixes for omapdrm, including: * Fix packed 24 bit color formats * Ensure the planes are inside the crtc * Handle out-of-dma-memory error * tag 'omapdrm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: drm/omap: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN drm/omap: fix align_pitch() for 24 bits per pixel drm/omap: fix omap_gem_put_paddr() error handling drm/omap: fix omap_framebuffer_unpin() error handling drm/omap: increase DMM transaction timeout drm/omap: check that plane is inside crtc drm/omap: return error if dma_alloc_writecombine fails
| * | | | | | | | | | | drm/omap: replace ALIGN(PAGE_SIZE) by PAGE_ALIGNFabian Frederick2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | use mm.h definition Cc: David Airlie <airlied@linux.ie> Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: dri-devel@lists.freedesktop.org Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | | | | | | | | | | drm/omap: fix align_pitch() for 24 bits per pixelTomi Valkeinen2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | align_pitch() uses ALIGN() to ensure the pitch is aligned to SGX's requirement of 8 pixels. However, ALIGN() expects the alignment value to be a power of two, which is not the case for 24 bits per pixels. Use roundup() instead, which works for all alignments. This fixes the error seen with 24 bits per pixel modes: "buffer pitch (2176 bytes) is not a multiple of pixel size (3 bytes)" Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | | | | | | | | | | drm/omap: fix omap_gem_put_paddr() error handlingTomi Valkeinen2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If tiler_unpin() call in omap_gem_put_paddr() fails, omap_gem_put_paddr() will immediately stop processing and return an error. This patch remoes that error checking, and also removes omap_gem_put_paddr()'s return value, because: * The caller of omap_gem_put_paddr() can do nothing if an error happens, so it's pointless to return an error value * If tiler_unpin() fails, the GEM object will possibly be left in an undefined state, where the DMM mapping may have been removed, but the GEM object still thinks everything is as it should be, leading to crashes later. * There's no point in returning an error from a "free" call, as the caller can do nothing about it. So it's better to clean up as much as possible. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
| * | | | | | | | | | | drm/omap: fix omap_framebuffer_unpin() error handlingTomi Valkeinen2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | omap_framebuffer_unpin() check the return value of omap_gem_put_paddr() and return immediately if omap_gem_put_paddr() fails. This patch removes the check for the return value, and also removes the return value of omap_framebuffer_unpin(), because: * Nothing checks the return value of omap_framebuffer_unpin(), and even something did check it, there's nothing the caller can do to handle the error. * If a omap_gem_put_paddr() fails, the framebuffer's other planes will be left unreleased. So it's better to call omap_gem_put_paddr() for all the planes, even if one would fail. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
| * | | | | | | | | | | drm/omap: increase DMM transaction timeoutTomi Valkeinen2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The DMM driver uses a timeout of 1 ms to wait for DMM transaction to finish. While DMM should always finish the operation within that time, the timeout is rather strict. Small misbehavior of the system (e.g. an irq taking too long) could trigger the timeout. As the DMM is a critical piece of code for display memory management, let's increase the timeout to 100 ms so that we are less likely to fail a memory allocation in case of system misbehaviors. 100 ms is just a guess of a reasonably large timeout. The HW should accomplish the task in less than 1 ms. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
| * | | | | | | | | | | drm/omap: check that plane is inside crtcTomi Valkeinen2015-07-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DRM allows planes to be partially off-screen, but DSS hardware does not. This patch adds the necessary check to reject plane configs if the plane is not fully inside the crtc. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
| * | | | | | | | | | | drm/omap: return error if dma_alloc_writecombine failsTomi Valkeinen2015-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On a platform with no TILER (e.g. omap3, am43xx), when the user wants to allocate buffer with flag OMAP_BO_SCANOUT, the buffer needs to be allocated with dma_alloc_writecombine. For some reason the driver does not return an error if that alloc fails, instead it continues without backing memory. This leads to errors later when the user tries to use the buffer. This patch makes the driver return an error if dma_alloc_writecombine fails. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
* | | | | | | | | | | | Merge tag 'drm-intel-fixes-2015-07-09' of ↵Dave Airlie2015-07-10
|\ \ \ \ \ \ \ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://anongit.freedesktop.org/drm-intel into drm-fixes Pile of fixes for either 4.2 issues or cc: stable. This should fix the 2nd kind of WARNING Linus's been seeing, please ask him to scream if that's not the case. * tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel: Revert "drm/i915: Allocate context objects from stolen" drm/i915: Declare the swizzling unknown for L-shaped configurations drm/i915: Use crtc_state->active in primary check_plane func drm/i915: Check crtc->active in intel_crtc_disable_planes drm/i915: Restore all GGTT VMAs on resume drm/i915/chv: fix HW readout of the port PLL fractional divider
| * | | | | | | | | | | | Revert "drm/i915: Allocate context objects from stolen"Ville Syrjälä2015-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stolen gets trashed during hibernation, so storing contexts there is not a very good idea. On my IVB machines this leads to a totally dead GPU on resume. A reboot is required to resurrect it. So let's not store contexts where they will get trampled. This reverts commit 149c86e74fe44dcbac5e9f8d145c5fbc5dc21261. Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | | drm/i915: Declare the swizzling unknown for L-shaped configurationsChris Wilson2015-07-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The old style of memory interleaving swizzled upto the end of the first even bank of memory, and then used the remainder as unswizzled on the unpaired bank - i.e. swizzling is not constant for all memory. This causes problems when we try to migrate memory and so the kernel prevents migration at all when we detect L-shaped inconsistent swizzling. However, this issue also extends to userspace who try to manually detile into memory as the swizzling for an individual page is unknown (it depends on its physical address only known to the kernel), userspace cannot correctly swizzle objects. v2: Mark the global swizzling as unknown rather than adjust the value reported to userspace. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91105 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@vger.kernel.org Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | | drm/i915: Use crtc_state->active in primary check_plane funcDaniel Vetter2015-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since commit 8c7b5ccb729870e606321b3703e2c2e698c49a95 Author: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Date: Tue Apr 21 17:13:19 2015 +0300 drm/i915: Use atomic helpers for computing changed flags we compute the plane state for a modeset before actually committing any changes, which means crtc->active won't be correct yet. Looking at future work in the modeset conversion targetting 4.3 the only places where crtc_state->active isn't accurate is when disabling other CRTCs than the one the modeset is for (when stealing connectors). Which isn't the case here. And that's also confirmed by an audit, we do unconditionally update crtc_state->active for the current pipe. We also don't need to update any other plane check functions since we only ever add the primary state to the modeset update right now. Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
| * | | | | | | | | | | | drm/i915: Check crtc->active in intel_crtc_disable_planesDaniel Vetter2015-07-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was lost in commit ce22dba92de22e951dee2ff89937a39754d2dd91 Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Date: Tue Apr 21 17:12:56 2015 +0300 drm/i915: Move toggling planes out of crtc enable/disable. and we still need that crtc->active check since the overall modeset flow doesn't yet take dpms state into account properly. Fixes WARNING backtraces on at least bdw/hsw due to the ips disabling code being upset about being run on a switched-off pipe. We don't need a corresponding change on the enable side since with the old setCrtc semantics we always force-enable the pipe after a modeset. And the dpms function intel_crtc_control already checks for ->active. Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>