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2017-06-15drm/amd/amdgpu: Port PSP v3.1 over to new SOC15 macrosTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Port NBIO v7.0 driver over to new SOC15 macrosTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Port NBIO v6.1 driver over to new SOC15 macrosTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Port UVD 7.0 over to new SOC15 macrosTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Port MMHUB over to new SOC15 macrosTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Cleanup gfxhub read-modify-write patternsTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Port GFXHUB over to new SOC15 macrosTom St Denis
Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Add offset variant to SOC15 macrosTom St Denis
Allows reading/writing via SOC15 macros with offset for various register banks. Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/powerplay: add avfs control for Vega10Eric Huang
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu: add virtual display support for ravenAlex Deucher
Same as other asics. If enabled, exposes a user selectable number of virtual displays. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu/gfx9: fix compute ring doorbell indexAlex Deucher
This got lost when the code was revamped. Copy/paste bug from gfx8. Reported-by: Evan Quan <evan.quan@amd.com> Fixes: 78c168342 (drm/amdgpu: allow split of queues with kfd at queue granularity v4) Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: Rename KIQ ring to avoid spacesTom St Denis
Swap space for underscore in ring name. Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/amdgpu: gfx9 tidy ups (v2)Tom St Denis
A couple of simple tidy ups to register programming. Signed-off-by: Tom St Denis <tom.stdenis@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v2): Avoid using 'data' uninitialized Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu: add contiguous flag in ucode bo createhorchen
Under VF environment, the ucode would be settled to the visible VRAM, As it would be pinned to the visible VRAM, it's better to add contiguous flag,otherwise it need to move gpu address during the pin process. This movement is not necessary. Signed-off-by: horchen <horace.chen@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu: fix missed gpu info firmware when cache firmware during S3Huang Rui
gpu_info firmware is released after data is used. But when system enters into suspend, upper class driver will cache all firmware names. At that time, gpu_info will be failing to load. It seems an upper class issue, that we should not release gpu_info firmware until device finished. [ 903.236589] cache_firmware: amdgpu/vega10_sdma1.bin [ 903.236590] fw_set_page_data: fw-amdgpu/vega10_sdma1.bin buf=ffff88041eee10c0 data=ffffc90002561000 size=17408 [ 903.236591] cache_firmware: amdgpu/vega10_sdma1.bin ret=0 [ 903.464160] __allocate_fw_buf: fw-amdgpu/vega10_gpu_info.bin buf=ffff88041eee2c00 [ 903.471815] (NULL device *): loading /lib/firmware/updates/4.11.0-custom/amdgpu/vega10_gpu_info.bin failed with error -2 [ 903.482870] (NULL device *): loading /lib/firmware/updates/amdgpu/vega10_gpu_info.bin failed with error -2 [ 903.492716] (NULL device *): loading /lib/firmware/4.11.0-custom/amdgpu/vega10_gpu_info.bin failed with error -2 [ 903.503156] (NULL device *): direct-loading amdgpu/vega10_gpu_info.bin Signed-off-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu: export test ib debugfs interfaceHuang Rui
As Christian and David's suggestion, submit the test ib ring debug interfaces. It's useful for debugging with the command submission without VM case. Signed-off-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/powerplay: add GPU power display for vega10Eric Huang
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amd/powerplay: update vega10_ppsmc.hEric Huang
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu: avoid to reset wave_front_size to 0Hawking Zhang
No need to clear it. The values are set explicitly. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/amdgpu: add new member in gpu_info fwHawking Zhang
Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-06-15drm/i915: Don't enable backlight at setup time.Dhinakaran Pandiyan
Maarten and Ville noticed that we are enabling backlight via DP aux very early in the modeset_init path via the intel_dp_aux_setup_backlight() function, since commit e7156c833903 ("drm/i915: Add Backlight Control using DPCD for eDP connectors (v9)"). Looks like all we need to do during _setup_backlight() is read the current brightness state instead of modifying it. v2: Rewrote commit message. Cc: Ville Syrjala <ville.syrjala@linux.intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Yetunde Adebisi <yetundex.adebisi@intel.com> Signed-off-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Tested-by: Puthikorn Voravootivat <puthik@chromium.org> Fixes: e7156c833903 ("drm/i915: Add Backlight Control using DPCD for eDP connectors (v9)") Link: http://patchwork.freedesktop.org/patch/msgid/1497384239-2965-1-git-send-email-dhinakaran.pandiyan@intel.com Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-06-15drm/i915/cnl: make function cnl_ddi_dp_set_dpll_hw_state staticColin Ian King
The function cnl_ddi_dp_set_dpll_hw_state does not need to be in global scope, so make it static. Cleans up sparse warning: "symbol 'cnl_ddi_dp_set_dpll_hw_state' was not declared. Should it be static?" Signed-off-by: Colin Ian King <colin.king@canonical.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170613134751.29196-1-colin.king@canonical.com Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-06-15drm/i915: Remove pipe A quirk remnantsVille Syrjälä
With 830 the only thing needing pipe quirks, we can just drop the quirk defines and replace the checks with IS_I830() checks. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-8-ville.syrjala@linux.intel.com Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15drm/i915: Drop pipe A quirk for Thinkapd T60Ville Syrjälä
The pipe A force quirk shouldn't needed except on 830. So let's nuke it for the IBM Thinkpad T60 945 machines. This quirk pre-dates KMS so it's usefulness is doubtful at best now. The original bug report [1] describes the symptoms as "system hang on closing T60 panel lid", and we already dropped a similar quirk for another 945 machine in commit 736a69ca8c99 ("drm/i915: Drop PIPE-A quirk for 945GSE HP Mini") so I'm hopeful we can drop this one as well. The quirk was added into xf86-video-intel in commit 08903abe4dc0 ("Add pipe a force enable quirk for Lenovo T60") [1] https://bugs.freedesktop.org/show_bug.cgi?id=16494 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-7-ville.syrjala@linux.intel.com Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15drm/i915: Drop pipe A quirk for Toshiba Protege R205-S209Ville Syrjälä
The pipe A force quirk shouldn't needed except on 830. So let's nuke it for the Toshiba Protege R-205/S-209 945 machines. This quirk pre-dates KMS so it's usefulness is doubtful at best now. Unfortunately the original bug report [1] isn't very helpful since it doesn't describe the symptoms. And the commit message in xf86-video-intel commit ecdb5963ef68 ("Add pipe A force enable quirk for Toshiba Portege R205-S209") is not much help either. However, if we assume the problem was the typical "closing the lid hangs the box" type of thing, we already nuked the quirk for another 945 machine in commit 736a69ca8c99 ("drm/i915: Drop PIPE-A quirk for 945GSE HP Mini") and so I hope we can drop this one as well. [1] https://bugs.freedesktop.org/show_bug.cgi?id=14944 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-6-ville.syrjala@linux.intel.com Acked-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15drm/i915: Add i830 "pipes power well"Ville Syrjälä
830 more or less requires both pipes and DPLLs to remain on as long as either pipe is needed. However, when neither pipe is actually needed, we can save a bit of power by turning everything off. To do that we add a new "power well" that turns both pipes and DPLLs on and off in the right order. Seems to save ~50mW on my Fujitsu-Siemens Lifebook S6010. This also avoids having to abuse the load detection to force pipe A on at init time. That was never very robust, and it only worked for one pipe, whereas 830 really needs both pipes enabled. As a bonus the 830 pipe quirk is now a bit more isolated from the rest of the mode setting infrastructure, which should mean that it's much less likely someone will accidentally break it in the future. The extra cost is of course slight code duplication, but that seems like a worthwile tradeoff here. v2; s/BIT/BIT_ULL/ Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-5-ville.syrjala@linux.intel.com Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15drm/i915: Use a loop for the "three times for luck" DPLL procedureVille Syrjälä
The magic "enable the DPLL three times" sequence feels like it deserves a loop. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-4-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula <jani.nikula@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15gpu: host1x: At first try a non-blocking allocation for the gather copyDmitry Osipenko
The blocking gather copy allocation is a major performance downside of the Host1x firewall, it may take hundreds milliseconds which is unacceptable for the real-time graphics operations. Let's try a non-blocking allocation first as a least invasive solution, it makes opentegra (Xorg driver) performance indistinguishable with/without the firewall. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Refactor channel allocation codeMikko Perttunen
This is largely a rewrite of the Host1x channel allocation code, bringing several changes: - The previous code could deadlock due to an interaction between the 'reflock' mutex and CDMA timeout handling. This gets rid of the mutex. - Support for more than 32 channels, required for Tegra186 - General refactoring, including better encapsulation of channel ownership handling into channel.c Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Dmitry Osipenko <digetx@gmail.com> Tested-by: Dmitry Osipenko <digetx@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Remove unused host1x_cdma_stop() definitionDmitry Osipenko
There is no host1x_cdma_stop() in the code, let's remove its definition from the header file. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Remove unused 'struct host1x_cmdbuf'Dmitry Osipenko
The struct host1x_cmdbuf is unused, let's remove it. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Check waits in the firewallDmitry Osipenko
Check waits in the firewall in a way it is done for relocations. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Correct swapped arguments in the is_addr_reg() definitionDmitry Osipenko
Arguments of the .is_addr_reg() are swapped in the definition of the function, that is quite confusing. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/i915: Plumb the correct acquire ctx into intel_crtc_disable_noatomic()Ville Syrjälä
If intel_crtc_disable_noatomic() were to ever get called during resume we'd end up deadlocking since resume has its own acqcuire_ctx but intel_crtc_disable_noatomic() still tries to use the mode_config.acquire_ctx. Pass down the correct acquire ctx from the top. Cc: stable@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Fixes: e2c8b8701e2d ("drm/i915: Use atomic helpers for suspend, v2.") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-3-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15gpu: host1x: Forbid unrelated SETCLASS opcode in the firewallDmitry Osipenko
Several channels could be made to write the same unit concurrently via the SETCLASS opcode, trusting userspace is a bad idea. It should be possible to drop the per-client channel reservation and add a per-unit locking by inserting MLOCK's to the command stream to re-allow the SETCLASS opcode, but it will be much more work. Let's forbid the unit-unrelated class changes for now. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Forbid RESTART opcode in the firewallDmitry Osipenko
The RESTART opcode terminates the gather and restarts the CDMA fetching from a specified word << 2 relative to the CDMA start address. That shouldn't be allowed to be done by userspace. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Forbid relocation address shifting in the firewallDmitry Osipenko
Incorrectly shifted relocation address will cause a lower memory corruption and likely a hang on a write or a read of an arbitrary data in case of IOMMU absence. As of now, there is no known use for the address shifting and adding a proper shifts / sizes validation is a much more work. Let's forbid shifts in the firewall till a proper validation is implemented. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Do not leak BO's phys address to userspaceDmitry Osipenko
Perform gathers coping before patching them, so that original gathers are left untouched. That's not as bad as leaking kernel addresses, but still doesn't feel right. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Correct host1x_job_pin() error handlingDmitry Osipenko
In case of relocations / waitchecks patching failure the jobs pins stay referenced till DRM file get closed, wasting memory. Add the missed unpinning. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Initialize firewall class to the job's oneDmitry Osipenko
The commands stream is prepended by the jobs class on the CDMA submission, so that explicitly setting a module class in the commands stream isn't necessary. The firewall initializes its class to 0 and the command stream that doesn't explicitly specify the class effectively bypasses the firewall. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/tegra: dc: Disable plane if it is invisibleDmitry Osipenko
On Tegra20 if plane has width or height equal to 0, it will be infinitely wide or tall. Let's disable the plane if it is invisible on atomic state committing to fix the issue. The Rockchip DRM driver does the same. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/tegra: dc: Apply clipping to the planeDmitry Osipenko
On Tegra20 an overlay plane should be clipped, otherwise its output is distorted once plane crosses display boundary. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/i915: Fix deadlock witha the pipe A quirk during resumeVille Syrjälä
Pass down the correct acquire context to the pipe A quirk load detect hack during display resume. Avoids deadlocking the entire thing. Cc: stable@vger.kernel.org Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Fixes: e2c8b8701e2d ("drm/i915: Use atomic helpers for suspend, v2.") Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170601143619.27840-2-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-06-15drm/tegra: dc: Avoid reset asserts on Tegra20Dmitry Osipenko
Commit 33a8eb8d40ee ("drm/tegra: dc: Implement runtime PM") introduced HW reset control. It causes a hang on Tegra20 if both display controllers are utilized (RGB panel and HDMI). The TRM suggests that each display controller has its own reset control, apparently it is not correct. Fixes: 33a8eb8d40ee ("drm/tegra: dc: Implement runtime PM") Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/tegra: Check syncpoint ID in the 'submit' IOCTLDmitry Osipenko
In case of invalid syncpoint ID, the host1x_syncpt_get() returns NULL and none of its users perform a check of the returned pointer later. Let's bail out until it's too late. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/tegra: Correct copying of waitchecks and disable them in the 'submit' IOCTLDmitry Osipenko
The waitchecks along with multiple syncpoints per submit are not ready for use yet, let's forbid them for now. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/tegra: Check for malformed offsets and sizes in the 'submit' IOCTLDmitry Osipenko
If commands buffer claims a number of words that is higher than its BO can fit, a kernel OOPS will be fired on the out-of-bounds BO access. This was triggered by an opentegra Xorg driver that erroneously pushed too many commands to the pushbuf. The CDMA commands buffer address is 4 bytes aligned, so check its alignment. The maximum number of the CDMA gather fetches is 16383, add a check for it. Add a sanity check for the relocations in a same way. [ 46.829393] Unable to handle kernel paging request at virtual address f09b2000 ... [<c04a3ba4>] (host1x_job_pin) from [<c04dfcd0>] (tegra_drm_submit+0x474/0x510) [<c04dfcd0>] (tegra_drm_submit) from [<c04deea0>] (tegra_submit+0x50/0x6c) [<c04deea0>] (tegra_submit) from [<c04c07c0>] (drm_ioctl+0x1e4/0x3ec) [<c04c07c0>] (drm_ioctl) from [<c02541a0>] (do_vfs_ioctl+0x9c/0x8e4) [<c02541a0>] (do_vfs_ioctl) from [<c0254a1c>] (SyS_ioctl+0x34/0x5c) [<c0254a1c>] (SyS_ioctl) from [<c0107640>] (ret_fast_syscall+0x0/0x3c) Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Erik Faye-Lund <kusmabite@gmail.com> Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/tegra: Add driver documentationThierry Reding
Adds some driver documentation for Tegra. It provides a short overview of the hardware and software architectures. Signed-off-by: Thierry Reding <treding@nvidia.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15gpu: host1x: Flesh out kerneldocThierry Reding
Improve kerneldoc for the public parts of the host1x infrastructure in preparation for adding driver-specific part to the GPU documentation. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Thierry Reding <treding@nvidia.com>
2017-06-15drm/i915: Split vma exec_link/evict_linkChris Wilson
Currently the vma has one link member that is used for both holding its place in the execbuf reservation list, and in any eviction list. This dual property is quite tricky and error prone. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170615081435.17699-3-chris@chris-wilson.co.uk