Convert a few calls to use the unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
b/drivers
iting
for idle will do the same.
This plus the previous changes have been tested against beignet
by using its own unit tests, and intel-video-compute by using
piglit's opencl tests.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
Cc: Jason Ekstrand
-- Still needs an ack fro
Straightforward conversion, just convert a bunch of calls to
unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu
It doesn't make sense to export a memory address, we will prevent
allowing access this way to different address spaces when we
rework userptr handling, so best to explicitly disable it.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
Cc: Jason Ekstrand
-- Still needs a
Ensure we hold the lock around put_pages, and use the unlocked wrappers
for pinning pages and mappings.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff
removes possible lockdep splats about missing resv lock for ucode.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.h | 2 ++
drivers/gpu/drm/i915/gem/i915_gem_pages.c | 20
drivers/gpu/drm/i915/gt/uc/intel_guc.c
We need to lock the object to move it to the correct domain,
add the missing lock.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_domain.c | 18 ++
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu
Instead of multiple lockings, lock the object once,
and perform the ww dance around attach_phys and pin_pages.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/display/intel_display.c | 69 ---
drivers/gpu/drm/i915/display/intel_display.h
: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/intel_ggtt.c | 8 +-
drivers/gpu/drm/i915/gt/intel_gtt.c | 38 ++-
drivers/gpu/drm/i915/gt/intel_gtt.h | 5
drivers/gpu/drm/i915/gt/intel_ppgtt.c | 3 ++-
drivers/gpu/drm/i915
Userptr should not need the kernel for a userspace memcpy, userspace
needs to call memcpy directly.
Specifically, disable i915_gem_pwrite_ioctl() and i915_gem_pread_ioctl().
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
-- Still needs an ack from relevant userspace that it
Straightforward conversion, just convert a bunch of calls to
unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm
We previously complained when ww == NULL.
This function is now only used in selftests to pin an object,
and ww locking is now fixed.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../i915/gem/selftests/i915_gem_coherency.c | 14 +
drivers/gpu/drm/i915
Straightforward conversion by using unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/selftests/i915_request.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c
With userptr fixed, there is no need for all separate lockdep classes
now, and we can remove all lockdep tricks used. A trylock in the
shrinker is all we need now to flatten the locking hierarchy.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem
igt_emit_store_dw needs to use the unlocked version, as it's not
holding a lock. This fixes igt_gpu_fill_dw() which is used by
some other selftests.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/igt_gem_utils.c | 2 +-
1 file chang
Straightforward conversion, just convert a bunch of calls to
unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../gpu/drm/i915/gem/selftests/huge_pages.c | 28 ++-
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu
Use unlocked versions when the ww lock is not held.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_ring_submission.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_ring_submission.c
ons done when pagefaulting inside copy_*_user.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/Makefile | 1 -
drivers/gpu/drm/i915/gem/i915_gem_fence.c | 95 -
drivers/gpu/drm/i915/gem/i915_gem_object.h | 5 -
drivers/gpu/drm/i
We need to lock a few more objects, some temporarily,
add ww lock where needed.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/i915_perf.c | 56
1 file changed, 43 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu
Convert a single pin_pages call to use the unlocked version.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_object.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gem/selftests
Now that unsynchronized mappings are removed, the only time userptr
works is when the MMU notifier is enabled. Put all of the userptr
code behind a mmu notifier ifdef.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c| 2
Currently we have a lot of places where we hold the gem object lock,
but haven't yet been converted to the ww dance. Complain loudly about
those places.
i915_vma_pin shouldn't have the obj lock held, so we can do a ww dance,
while i915_vma_pin_ww should.
Signed-off-by: Maarten
With all callers and selftests fixed to use ww locking, we can now
finally remove this lock.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.c| 2 -
drivers/gpu/drm/i915/gem/i915_gem_object.h| 5 +--
.../gpu/drm/i915/gem
Quick fix, just use the unlocked version.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/shmem_utils.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/shmem_utils.c
b/drivers/gpu/drm/i915/gt/shmem_utils.c
Same as other tests, use pin_map_unlocked.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_engine_cs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
b/drivers/gpu/drm
ode still needs fixing, as taking mmap locks during reset
is not allowed.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/intel_reset.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c
b/driv
Take the ww lock around engine_unpark. Because of the
many many places where rpm is used, I chose the safest option
and used a trylock to opportunistically take this lock for
__engine_unpark.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt
Make creation separate from pinning, in order to take the lock only
once, and pin the mapping with the lock held.
Changes since v1:
- Rebase on top of upstream changes.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 44
pin_map needs the ww lock, so ensure we pin both before submission.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.h| 3 +
drivers/gpu/drm/i915/gem/i915_gem_pages.c | 12 +++
.../gpu/drm/i915/gt/selftest_workarounds.c
Pin in the caller, not in the work itself. This should also
work better for dma-fence annotations.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_clflush.c | 15 +++
1 file changed, 7 insertions(+), 8 deletions(-)
diff --git a
Use pin_map_unlocked when we're not holding locks.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_mocs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_mocs.c
b/drivers/gpu/drm/i9
s has the added benefit of being able to catch all memory allocation
errors before the point of no return, and return -ENOMEM safely to the
execbuf submitter.
Signed-off-by: Maarten Lankhorst
Acked-by: Thomas Hellström
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c| 74 -
driver
function. (tvrtko)
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström #v1
Reported-by: kernel test robot
---
drivers/gpu/drm/i915/gt/gen2_engine_cs.c | 2 +-
drivers/gpu/drm/i915/gt/gen6_engine_cs.c | 8 +-
drivers/gpu/drm/i915/gt/gen8_engine_cs.c | 13 +-
drivers/gpu
Convert normal functions to unlocked versions where needed.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_execlists.c | 18 +-
drivers/gpu/drm/i915/gt/selftest_lrc.c | 16
2 files changed, 17
Use the unlocked variants for pin_map and pin_pages, and add lock
around unpinning/putting pages.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../drm/i915/selftests/intel_memory_region.c | 18 +++---
1 file changed, 11 insertions(+), 7 deletions(-)
diff
eb->[i + 1].vma in the code. (Thomas)
- Actually check all invalidations in eb_move_to_gpu. (Thomas)
- Do not wait when process is exiting to fix gem_ctx_persistence.userptr.
Changes since v5:
- Clarify why check on PF_EXITING is (temporarily) required.
Signed-off-by: Maarten Lankhorst
Acked-b
i915_gem_object_pin_map potentially needs a ww context, so ensure we
have one we can revoke.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_mman.c | 24 ++--
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a
bi changes have been clarified, and set_caching to CACHED
for userptr is now allowed, because the mesa vulkan driver sets everything
to cached. It doesn't check the return value, but lets be paranoid
and explicitly allow this.
Maarten Lankhorst (62):
drm/i915: Do not share hwsp across contex
i915_vma_pin may fail with -EDEADLK when we start locking page tables,
so ensure we handle this correctly.
Changes since v1:
- Drop -EDEADLK todo, this commit handles it.
- Change eb_pin_vma from sort-of-bool + -EDEADLK to a proper int. (Matt)
Cc: Matthew Brost
Signed-off-by: Maarten Lankhorst
e callback would
go down the phys free path.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.h | 3 ++-
drivers/gpu/drm/i915/gem/i915_gem_phys.c | 12 ++--
drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 17 ++---
3 fil
Doesn't need the full ww lock, only checking if pages are bound.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström #irc
---
drivers/gpu/drm/i915/i915_gem.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gp
We want to remove the changing of ops structure for attaching
phys pages, so we need to kill off HAS_STRUCT_PAGE from ops->flags,
and put it in the bo.
This will remove a potential race of dereferencing the wrong obj->ops
without ww mutex held.
Signed-off-by: Maarten Lankhorst
Revie
As soon as we install fences, we should stop allocating memory
in order to prevent any potential deadlocks.
This is required later on, when we start adding support for
dma-fence annotations.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../gpu/drm/i915/gem
s
you will need CONFIG_I915_USERPTR.
Signed-off-by: Maarten Lankhorst
Acked-by: Dave Airlie
Reviewed-by: Thomas Hellström
Cc: Jason Ekstrand
---
drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 10 ++
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/dr
nd demote to
standard headers
Linus Walleij (1):
dt-bindings: display: Augment s6e63m0 bindings
Lukasz Luba (1):
drm/panfrost: Use delayed timer as default in devfreq profile
Lyude Paul (1):
drm/ttm: Remove pinned bos from LRU in ttm_bo_move_to_lru_tail() v2
Maarten Lankhor
Op 14-01-2021 om 13:06 schreef Tvrtko Ursulin:
>
> On 05/01/2021 15:34, Maarten Lankhorst wrote:
>> Instead of sharing pages with breadcrumbs, give each timeline a
>> single page. This allows unrelated timelines not to share locks
>> any more during command submission
Op 18-01-2021 om 16:05 schreef Thomas Hellström:
>
> On 1/18/21 3:46 PM, Maarten Lankhorst wrote:
>> Op 18-01-2021 om 14:28 schreef Thomas Hellström:
>>> On 1/18/21 2:22 PM, Thomas Hellström wrote:
>>>> On 1/18/21 1:01 PM, Maarten Lankhorst wrote:
>>&g
Op 18-01-2021 om 14:28 schreef Thomas Hellström:
>
> On 1/18/21 2:22 PM, Thomas Hellström wrote:
>>
>> On 1/18/21 1:01 PM, Maarten Lankhorst wrote:
>>> Op 18-01-2021 om 12:11 schreef Thomas Hellström:
>>>> On 1/5/21 4:35 PM, Maarten Lankhorst wrote:
>
Op 18-01-2021 om 13:55 schreef Thomas Hellström (Intel):
>
> On 1/18/21 1:43 PM, Maarten Lankhorst wrote:
>> Op 18-01-2021 om 12:30 schreef Thomas Hellström (Intel):
>>> Hi,
>>>
>>> On 1/5/21 4:35 PM, Maarten Lankhorst wrote:
>>>> Instead of doi
Op 18-01-2021 om 12:30 schreef Thomas Hellström (Intel):
> Hi,
>
> On 1/5/21 4:35 PM, Maarten Lankhorst wrote:
>> Instead of doing what we do currently, which will never work with
>> PROVE_LOCKING, do the same as AMD does, and something similar to
>> relocation slowpath.
Op 18-01-2021 om 12:11 schreef Thomas Hellström:
>
> On 1/5/21 4:35 PM, Maarten Lankhorst wrote:
>> We get a lockdep splat when the reset mutex is held, because it can be
>> taken from fence_wait. This conflicts with the mmu notifier we have,
>> because we recurse between r
de" --> "list"
gpu/drm: ring_mirror_list --> pending_list
drm/scheduler: Essentialize the job done callback
drm/sched: Add missing structure comment
Maarten Lankhorst (1):
Merge drm/drm-next into drm-misc-next
Maxime Ripard (20):
drm/vc4: hdmi: Don&#x
Try to pin to ggtt first, and use a full ww loop to handle
eviction correctly.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/intel_engine_cs.c | 37 +++
1 file changed, 24 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu
will do the same.
This plus the previous changes have been tested against beignet
by using its own unit tests, and intel-video-compute by using
piglit's opencl tests.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
-- Still needs an ack from relevant userspace that it won&#x
i915_vma_pin may fail with -EDEADLK when we start locking page tables,
so ensure we handle this correctly.
Changes since v1:
- Drop -EDEADLK todo, this commit handles it.
- Change eb_pin_vma from sort-of-bool + -EDEADLK to a proper int. (Matt)
Cc: Matthew Brost
Signed-off-by: Maarten Lankhorst
With all callers and selftests fixed to use ww locking, we can now
finally remove this lock.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.c| 2 -
drivers/gpu/drm/i915/gem/i915_gem_object.h| 5 +--
.../gpu/drm/i915/gem
Convert a few calls to use the unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_hangcheck.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_hangcheck.c
b/drivers
Straightforward conversion, just convert a bunch of calls to
unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_context.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu
Instead of creating a separate object type, we make changes to
the shmem type, to clear struct page backing. This will allow us to
ensure we never run into a race when we exchange obj->ops with other
function pointers.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
driv
s has the added benefit of being able to catch all memory allocation
errors before the point of no return, and return -ENOMEM safely to the
execbuf submitter.
Signed-off-by: Maarten Lankhorst
Acked-by: Thomas Hellström
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c| 74 -
driver
We previously complained when ww == NULL.
This function is now only used in selftests to pin an object,
and ww locking is now fixed.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../i915/gem/selftests/i915_gem_coherency.c | 14 +
drivers/gpu/drm/i915
Userptr should not need the kernel for a userspace memcpy, userspace
needs to call memcpy directly.
Specifically, disable i915_gem_pwrite_ioctl() and i915_gem_pread_ioctl().
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
-- Still needs an ack from relevant userspace that it
By default, we assume that it's called inside igt_create_request
to keep existing selftests working, but allow for manual pinning
when passing a ww context.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/selftests/igt_spinner.c
eb->[i + 1].vma in the code. (Thomas)
- Actually check all invalidations in eb_move_to_gpu. (Thomas)
- Do not wait when process is exiting to fix gem_ctx_persistence.userptr.
Signed-off-by: Maarten Lankhorst
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c| 101 ++-
drivers/gp
Straightforward conversion, just convert a bunch of calls to
unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm
Doesn't need the full ww lock, only checking if pages are bound.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström #irc
---
drivers/gpu/drm/i915/i915_gem.c | 8 +++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gp
This allows us to remove pin_map from state allocation, which saves
us a few retry loops. We won't need this until first pin, anyway.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../drm/i915/gt/intel_execlists_submission.c | 26 ---
1 file change
Because of the long lifetime of the mapping, we cannot wrap this in a
simple limited ww lock. Just use the unlocked version of pin_map,
because we'll likely release the mapping a lot later, in a different
thread.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
driver
Instead of multiple lockings, lock the object once,
and perform the ww dance around attach_phys and pin_pages.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/display/intel_display.c | 69 ---
drivers/gpu/drm/i915/display/intel_display.h
Use some unlocked versions where we're not holding the ww lock.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i91
We need to lock a few more objects, some temporarily,
add ww lock where needed.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/i915_perf.c | 56
1 file changed, 43 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu
Straightforward conversion by using unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/selftests/i915_request.c | 10 +-
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c
As soon as we install fences, we should stop allocating memory
in order to prevent any potential deadlocks.
This is required later on, when we start adding support for
dma-fence annotations.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../gpu/drm/i915/gem
-by: Maarten Lankhorst
---
drivers/gpu/drm/i915/gt/intel_reset.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_reset.c
b/drivers/gpu/drm/i915/gt/intel_reset.c
index 9d177297db79..3c0807d9a86e 100644
--- a/drivers/gpu/drm/i915/gt/intel_rese
Take the ww lock around engine_unpark. Because of the
many many places where rpm is used, I chose the safest option
and used a trylock to opportunistically take this lock for
__engine_unpark.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt
Currently we have a lot of places where we hold the gem object lock,
but haven't yet been converted to the ww dance. Complain loudly about
those places.
i915_vma_pin shouldn't have the obj lock held, so we can do a ww dance,
while i915_vma_pin_ww should.
Signed-off-by: Maarten
vmap is using pin_pages, but needs to use ww locking,
add pin_pages_unlocked to correctly lock the mapping.
Also add ww locking to begin/end cpu access.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_dmabuf.c | 60 --
1
We need to lock the global gtt dma_resv, use i915_vm_lock_objects
to handle this correctly. Add ww handling for this where required.
Add the object lock around unpin/put pages, and use the unlocked
versions of pin_pages and pin_map where required.
Signed-off-by: Maarten Lankhorst
Reviewed-by
ce v1:
- Handle -EDEADLK backoff in intel_ring_submission_setup() better.
- Handle smatch errors reported by Dan and testbot.
Signed-off-by: Maarten Lankhorst
Reported-by: kernel test robot
Reported-by: Dan Carpenter
Reviewed-by: Thomas Hellström
---
.../gpu/drm/i915/gt/intel_ring_submission.c
This should be done as part of the ww loop, in order to remove a
i915_vma_pin that needs ww held.
Now only i915_ggtt_pin() callers remaining.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/intel_gtt.c| 14 +-
drivers/gpu/drm
From: Thomas Hellström
In a ww transaction where we've already locked a reservation
object, assert_object_held() might not throw a splat even if
the object is unlocked. Improve on that situation by asserting
that the reservation object's ww mutex is indeed locked.
Signed-off-by: Thomas Hellström
Same as other tests, use pin_map_unlocked.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_engine_cs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_engine_cs.c
b/drivers/gpu/drm
Use the unlocked variants for pin_map and pin_pages, and add lock
around unpinning/putting pages.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../drm/i915/selftests/intel_memory_region.c | 18 +++---
1 file changed, 11 insertions(+), 7 deletions(-)
diff
With userptr fixed, there is no need for all separate lockdep classes
now, and we can remove all lockdep tricks used. A trylock in the
shrinker is all we need now to flatten the locking hierarchy.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem
Make creation separate from pinning, in order to take the lock only
once, and pin the mapping with the lock held.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/intel_lrc.c | 32 ++---
1 file changed, 25 insertions(+), 7
Use pin_map_unlocked when we're not holding locks.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_mocs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_mocs.c
b/drivers/gpu/drm/i9
e callback would
go down the phys free path.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.h | 3 ++-
drivers/gpu/drm/i915/gem/i915_gem_phys.c | 12 ++--
drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 17 ++---
3 fil
We need to take the obj lock to pin pages, so wait until the callers
have done so, before making the object unshrinkable.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c| 2 +
.../gpu/drm/i915/gem/i915_gem_object_blt.c| 6
It doesn't make sense to export a memory address, we will prevent
allowing access this way to different address spaces when we
rework userptr handling, so best to explicitly disable it.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
-- Still needs an ack from relevant user
Reported-by: Dan Carpenter
Signed-off-by: Maarten Lankhorst
---
drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 27 ++---
1 file changed, 24 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
index
s
you will need CONFIG_I915_USERPTR.
Signed-off-by: Maarten Lankhorst
---
drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 10 ++
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
index 64
since v2:
- Clear entire cacheline when pinning.
Signed-off-by: Maarten Lankhorst
Reported-by: kernel test robot
---
drivers/gpu/drm/i915/gt/intel_timeline.c| 40 +
drivers/gpu/drm/i915/gt/intel_timeline.h| 2 +
drivers/gpu/drm/i915/gt/mock_engine.c | 22 ++-
driver
Straightforward conversion, just convert a bunch of calls to
unlocked versions.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_client_blt.c | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu
We want to remove the changing of ops structure for attaching
phys pages, so we need to kill off HAS_STRUCT_PAGE from ops->flags,
and put it in the bo.
This will remove a potential race of dereferencing the wrong obj->ops
without ww mutex held.
Signed-off-by: Maarten Lankhorst
Revie
pin_map needs the ww lock, so ensure we pin both before submission.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.h| 3 +
drivers/gpu/drm/i915/gem/i915_gem_pages.c | 12 +++
.../gpu/drm/i915/gt/selftest_workarounds.c
We need to lock the object to move it to the correct domain,
add the missing lock.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_domain.c | 18 ++
1 file changed, 10 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu
From: Thomas Hellström
Stolen objects need to lock, and we may call put_pages when
refcount drops to 0, ensure all calls are handled correctly.
Idea-from: Thomas Hellström
Signed-off-by: Maarten Lankhorst
Signed-off-by: Thomas Hellström
---
drivers/gpu/drm/i915/gem/i915_gem_object.h | 14
Use unlocked versions when the ww lock is not held.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_ring_submission.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_ring_submission.c
Now that unsynchronized mappings are removed, the only time userptr
works is when the MMU notifier is enabled. Put all of the userptr
code behind a mmu notifier ifdef.
Signed-off-by: Maarten Lankhorst
---
.../gpu/drm/i915/gem/i915_gem_execbuffer.c| 2 +
drivers/gpu/drm/i915/gem
Only needs to convert a single call to the unlocked version.
Signed-off-by: Maarten Lankhorst
Reviewed-by: Thomas Hellström
---
drivers/gpu/drm/i915/gt/selftest_context.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/selftest_context.c
b
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