Driver Changes:
- Added bits of DG2 support around page table handling (Stuart Summers, Matthew Auld)
- Fixed wakeref leak in PMU busyness during reset in GuC mode (Umesh Nerlige Ramappa)
- Fixed debugfs access crash if GuC failed to load (John Harrison)
- Bring back GuC error log to error capture, undoing accidental earlier breakage (Thomas Hellström)
- Fixed memory leak in error capture caused by earlier refactoring (Thomas Hellström)
- Exclude reserved stolen from driver use (Chris Wilson)
- Add memory region sanity checking and optional full test (Chris Wilson)
- Fixed buffer size truncation in TTM shmemfs backend (Robert Beckett)
- Use correct lock and don't overwrite internal data structures when stealing GuC context ids (Matthew Brost)
- Don't hog IRQs when destroying GuC contexts (John Harrison)
- Make GuC to Host communication more robust (Matthew Brost)
- Continuation of locking refactoring around VMA and backing store handling (Maarten Lankhorst)
- Improve performance of reading GuC log from debugfs (John Harrison)
- Log when GuC fails to reset an engine (John Harrison)
- Speed up GuC/HuC firmware loading by requesting RP0 (Vinay Belgaumkar)
- Further work on asynchronous VMA unbinding (Thomas Hellström, Christian König)
- Refactor GuC/HuC firmware handling to prepare for future platforms (John Harrison)
- Prepare for future different GuC/HuC firmware signing key sizes (Daniele Ceraolo Spurio, Michal Wajdeczko)
- Add noreclaim annotations (Matthew Auld)
- Remove racey GEM_BUG_ON between GPU reset and GuC communication handling (Matthew Brost)
- Refactor i915->gt with to_gt(i915) to prepare for future platforms (Michał Winiarski, Andi Shyti)
- Increase GuC log size for CONFIG_DEBUG_GEM (John Harrison)
- Fixed engine busyness in selftests when in GuC mode (Umesh Nerlige Ramappa)
- Make engine parking work with PREEMPT_RT (Sebastian Andrzej Siewior)
- Replace X86_FEATURE_PAT with pat_enabled() (Lucas De Marchi)
- Selftest for stealing of guc ids (Matthew Brost)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YcRvKO5cyPvIxVCi@tursulin-mobl2
Some GPU heavy test programs manage to trigger the hangcheck quite often.
If there are no other GPU users in the system and the test program
exhibits a very regular structure in the commandstreams that are being
submitted, we can end up with two distinct submits managing to trigger
the hangcheck with the FE in a very similar address range. This leads
the hangcheck to believe that the GPU is stuck, while in reality the GPU
is already busy working on a different job. To avoid those spurious
GPU resets, also remember and consider the last completed fence seqno
in the hang check.
Reported-by: Joerg Albert <joerg.albert@iav.de>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Convert free_work into delayed_work, similar to ttm to allow converting the
blocking lock in __i915_gem_free_objects to a trylock.
Unlike ttm, the object should already be idle, as it's kept alive
by a reference through struct i915_vma->active, which is dropped
after all vma's are idle.
Because of this, we can use a no wait by default, or when the lock
is contested, we use ttm's 10 ms.
The trylock should only fail when the object is sharing it's resv with
other objects, and typically objects are not kept locked for a long
time, so we can safely retry on failure.
Fixes: be7612fd66 ("drm/i915: Require object lock when freeing pages during destruction")
Testcase: igt/gem_exec_alignment/pi*
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211222155622.2960379-1-maarten.lankhorst@linux.intel.com
drm/tegra: Changes for v5.17-rc1
This contains a fairly large rework that makes the buffer objects behave
more according to what the DMA-BUF infrastructure expects. A buffer
object cache is implemented on top of that to make certain operations
such as page-flipping more efficient by avoiding needless map/unmap
operations. This in turn is useful to implement asynchronous commits to
support legacy cursor updates.
Another fairly big addition is the NVDEC driver. This uses the updated
UABI introduced in v5.15-rc1 to provide access to the video decode
engines found on Tegra210 and later.
This also includes some power management improvements that are useful on
older devices in particular because they, together with a bunch of other
changes across the kernel, allow the system to scale down frequency and
voltages when mostly idle and prevent these devices from becoming
excessively hot.
The remainder of these changes is an assortment of cleanups and minor
fixes.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Thierry Reding <thierry.reding@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211217142912.558095-1-thierry.reding@gmail.com
In order to validate multiple "if" conditionals, they must be part of an
"allOf:" list, otherwise they will cause a failure in parsing the schema
because of the duplicated "if" property.
Fixes: d7df3948eb ("dt-bindings: display: bridge: lvds-codec: Document pixel data sampling edge select")
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211220125147.519880-1-thierry.reding@gmail.com
Protect updates of struct i915_vma flags and async binding / unbinding
with the vm::mutex. This means that i915_vma_bind() needs to assert
vm::mutex held. In order to make that possible drop the caching of
kmap_atomic() maps around i915_vma_bind().
An alternative would be to use kmap_local() but since we block cpu
unplugging during sleeps inside kmap_local() sections this may have
unwanted side-effects. Particularly since we might wait for gpu while
holding the vm mutex.
This change may theoretically increase execbuf cpu-usage on snb, but
at least on non-highmem systems that increase should be very small.
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211221200050.436316-5-thomas.hellstrom@linux.intel.com
Since the gt migration code was using only a single fence for
dependencies, these were collected in a dma_fence_array. However, it
turns out that it's illegal to use some dma_fences in a dma_fence_array,
in particular other dma_fence_arrays and dma_fence_chains, and this
causes trouble for us moving forward.
Have the gt migration code instead take a const struct i915_deps for
dependencies. This means we can skip the dma_fence_array creation
and instead pass the struct i915_deps instead to circumvent the
problem.
v2:
- Make the prev_deps() function static. (kernel test robot <lkp@intel.com>)
- Update the struct i915_deps kerneldoc.
v4:
- Rebase.
Fixes: 5652df829b ("drm/i915/ttm: Update i915_gem_obj_copy_ttm() to be asynchronous")
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211221200050.436316-2-thomas.hellstrom@linux.intel.com
Dropped the use of 'out' label from exynos_dsi_register_te_irq function
because the label isn't needed. This patch returns an error in each
error case directly not going to 'out' label.
With this patch build warning[1] is also fixed, which was reported by
kernel test robot <lkp@intel.com>
[1] https://www.spinics.net/lists/dri-devel/msg323803.html
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Moving the driver-specific mmap code into a GEM object function allows
for using DRM helpers for various mmap callbacks.
The respective exynos functions are being removed. The file_operations
structure exynos_drm_driver_fops is now being created by the helper macro
DEFINE_DRM_GEM_FOPS().
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Fixed merge conflict.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Considering the current transition of the GPIO subsystem, remove all
dependencies of the legacy GPIO interface (linux/gpio.h and linux
/of_gpio.h) and replace it with the descriptor-based GPIO approach.
Signed-off-by: Maíra Canal <maira.canal@usp.br>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
By default, GT (and GuC) run at RPn. Requesting for RP0
before firmware load can speed up DMA and HuC auth as well.
In addition to writing to 0xA008, we also need to enable
swreq in 0xA024 so that Punit will pay heed to our request.
SLPC will restore the frequency back to RPn after initialization,
but we need to manually do that for the non-SLPC path.
We don't need a manual override in the SLPC disabled case, just
use the intel_rps_set function to ensure consistent RPS state.
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Reviewed-by: Sujaritha Sundaresan <sujaritha.sundaresan@intel.com>
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216233022.21351-1-vinay.belgaumkar@intel.com
If GuC encounters an error during engine reset, the i915 driver
promotes to full GT reset. This includes an info message about why the
reset is happening. However, that is not treated as a failure by any
of the CI systems because resets are an expected occurrance during
testing. This kind of failure is a major problem and should never
happen. So, complain more loudly and make sure CI notices.
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211211065859.2248188-4-John.C.Harrison@Intel.com
Lots of testing is done with the DEBUG_GEM config option enabled but
not the DEBUG_GUC option. That means we only get teeny-tiny GuC logs
which are not hugely useful. Enabling full DEBUG_GUC also spews lots
of other detailed output that is not generally desired. However,
bigger GuC logs are extremely useful for almost any regression debug.
So enable bigger logs for DEBUG_GEM builds as well.
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211211065859.2248188-3-John.C.Harrison@Intel.com
Add support for telling the debugfs interface the size of the GuC log
dump in advance. Without that, the underlying framework keeps calling
the 'show' function with larger and larger buffer allocations until it
fits. That means reading the log from graphics memory many times - 16
times with the full 18MB log size.
v2: Don't return error codes from size query. Report overflow in the
error dump as well (review feedback from Daniele).
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211211065859.2248188-2-John.C.Harrison@Intel.com
Currently we allow rediculous amounts of kernel memory being allocated
via the etnaviv GEM_SUBMIT ioctl, which is a pretty easy DoS vector. Put
some reasonable limits in to fix this.
The commandstream size is limited to 64KB, which was already a soft limit
on older kernels after which the kernel only took submits on a best effort
base, so there is no userspace that tries to submit commandstreams larger
than this. Even if the whole commandstream is a single incrementing address
load, the size limit also limits the number of potential relocs and
referenced buffers to slightly under 64K, so use the same limit for those
arguments. The performance monitoring infrastructure currently supports
less than 50 performance counter signals, so limiting them to 128 on a
single submit seems like a reasonably future-proof number for now. This
number can be bumped if needed without breaking the interface.
Cc: stable@vger.kernel.org
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Big delta, but boils down to moving set_pages to i915_vma.c, and removing
the special handling, all callers use the defaults anyway. We only remap
in ggtt, so default case will fall through.
Because we still don't require locking in i915_vma_unpin(), handle this by
using xchg in get_pages(), as it's locked with obj->mutex, and cmpxchg in
unpin, which only fails if we race a against a new pin.
Changes since v1:
- aliasing gtt sets ZERO_SIZE_PTR, not -ENODEV, remove special case
from __i915_vma_get_pages(). (Matt)
Changes since v2:
- Free correct old pages in __i915_vma_get_pages(). (Matt)
Remove race of clearing vma->pages accidentally from put,
free it but leave it set, as only get has the lock.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211216142749.1966107-4-maarten.lankhorst@linux.intel.com
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
We now support a per-gt uncore, yet we're not able to infer which GT
we're operating upon. Let's store a backpointer for now.
At this point the early initialization of the gt needs to be
broken in two parts where the first is needed to assign to the gt
the i915 private data pointer and the uncore. A temporary
function has been made and the two parts are
__intel_gt_init_early() and intel_gt_init_early(). This split
will be fixed in the future with the multitile patch.
Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Signed-off-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211214193346.21231-2-andi.shyti@linux.intel.com
vmw_user_bo_lookup can fail to lookup user buffers, especially because
the buffer handles come from the userspace. The return value has
to be checked before the buffers are put back.
This was spotted by Dan's Smatch statick checker:
drivers/gpu/drm/vmwgfx/vmwgfx_bo.c:574 vmw_user_bo_synccpu_release()
error: uninitialized symbol 'vmw_bo'.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 8afa13a058 ("drm/vmwgfx: Implement DRIVER_GEM")
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215200224.3693345-1-zack@kde.org
(cherry picked from commit 60c9ecd705)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Before the driver had screen targets support we had to disable explicit
bringup of its infrastructure because it was breaking screen objects
support.
Since the implementation of screen targets landed there hasn't been a
reason to explicitly disable it and the options were never used.
Remove of all that unused code.
Signed-off-by: Zack Rusin <zackr@vmware.com>
Fixes: d80efd5cb3 ("drm/vmwgfx: Initial DX support")
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215184147.3688785-3-zack@kde.org
(cherry picked from commit 11343099d5)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Old versions of the svga device used to export virtual vram, handling of
which was optimized on top of transparent hugepages support. Only very
old devices (OpenGL 2.1 support and earlier) used this code and at this
point performance differences are negligible.
Because the code requires very old hardware versions to run it has
been largely untested and unused for a long time.
Furthermore removal of the ttm hugepages support in:
commit 0d97950953 ("drm/ttm: remove ttm_bo_vm_insert_huge()")
broke the coherency mode in vmwgfx when running with hugepages.
Fixes: 0d97950953 ("drm/ttm: remove ttm_bo_vm_insert_huge()")
Signed-off-by: Zack Rusin <zackr@vmware.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215184147.3688785-2-zack@kde.org
(cherry picked from commit 49d535d64d)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
On i386 size_t is of course 32bits and using long int throws warnings,
trivially fix it by using the dedicated size_t format.
This is enough to fix the following warning found by the kernel test
robot:
drivers/gpu/drm/vmwgfx/vmwgfx_gem.c: In function 'vmw_bo_print_info':
>> drivers/gpu/drm/vmwgfx/vmwgfx_gem.c:230:33: warning: format '%ld'
expects argument of type 'long int', but argument 4 has type 'size_t'
{aka 'unsigned int'} [-Wformat=]
230 | seq_printf(m, "\t\t0x%08x: %12ld bytes %s, type = %s",
| ~~~~^
| |
| long int
| %12d
231 | id, bo->base.base.size, placement, type);
| ~~~~~~~~~~~~~~~~~~
| |
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Fixes: 8afa13a058 ("drm/vmwgfx: Implement DRIVER_GEM")
Reviewed-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211215184147.3688785-1-zack@kde.org
(cherry picked from commit 72345114c9)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
