linux.git/drivers/gpu/drm/imagination, branch v6.9 Linux kernel source tree drm/imagination: Ensure PVR_MIPS_PT_PAGE_COUNT is never zero 2024-04-29T11:31:28+00:00 Matt Coster matt.coster@imgtec.com 2024-03-05T10:28:33+00:00 e4236b14fe32a8d92686ec656c870a6bb1d6f50a When the host page size was more than 4 times larger than the FW page size, this macro evaluated to zero resulting in zero-sized arrays. Use DIV_ROUND_UP() to ensure the correct behavior. Reported-by: 20240228012313.5934-1-yaolu@kylinos.cn Closes: https://lore.kernel.org/dri-devel/20240228012313.5934-1-yaolu@kylinos.cn Link: https://lore.kernel.org/dri-devel/20240228012313.5934-1-yaolu@kylinos.cn Fixes: 927f3e0253c1 ("drm/imagination: Implement MIPS firmware processor and MMU support") Cc: stable@vger.kernel.org Signed-off-by: Matt Coster <matt.coster@imgtec.com> Reviewed-by: Frank Binns <frank.binns@imgtec.com> 
When the host page size was more than 4 times larger than the FW page
size, this macro evaluated to zero resulting in zero-sized arrays.

Use DIV_ROUND_UP() to ensure the correct behavior.

Reported-by: 20240228012313.5934-1-yaolu@kylinos.cn
Closes: https://lore.kernel.org/dri-devel/20240228012313.5934-1-yaolu@kylinos.cn
Link: https://lore.kernel.org/dri-devel/20240228012313.5934-1-yaolu@kylinos.cn
Fixes: 927f3e0253c1 ("drm/imagination: Implement MIPS firmware processor and MMU support")
Cc: stable@vger.kernel.org
Signed-off-by: Matt Coster <matt.coster@imgtec.com>
Reviewed-by: Frank Binns <frank.binns@imgtec.com>
Merge tag 'drm-misc-next-fixes-2024-01-04' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2024-01-05T00:31:54+00:00 Dave Airlie airlied@redhat.com 2024-01-05T00:31:29+00:00 3c064aea46d071ccf95a142be5532768a7fa6f02 One fix for drm/plane to avoid a use-after-free and some additional warnings to prevent more of these occurences, a lock inversion dependency fix and an indentation fix for drm/rockchip, and some doc warning fixes for imagination and gpuvm. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/enhl33v2oeihktta2yfyc4exvezdvm3eexcuwxkethc5ommrjo@lkidkv2kwakq 
One fix for drm/plane to avoid a use-after-free and some additional
warnings to prevent more of these occurences, a lock inversion
dependency fix and an indentation fix for drm/rockchip, and some doc
warning fixes for imagination and gpuvm.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/enhl33v2oeihktta2yfyc4exvezdvm3eexcuwxkethc5ommrjo@lkidkv2kwakq
drm/imagination: pvr_device.h: fix all kernel-doc warnings 2024-01-02T10:50:05+00:00 Randy Dunlap rdunlap@infradead.org 2023-12-31T05:49:10+00:00 eee706839333ec0643f1b4898a37588025bf4cb5 Correct all kernel-doc notation on pvr_device.h so that there are no kernel-doc warnings remaining. pvr_device.h:292: warning: Excess struct member 'active' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'idle' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'work' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'old_kccb_cmds_executed' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'kccb_stall_count' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'ccb' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'rtn_q' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'rtn_obj' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'rtn' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'slot_count' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'reserved_count' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'waiters' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'fence_ctx' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'id' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'seqno' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'active' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'idle' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'work' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'old_kccb_cmds_executed' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'kccb_stall_count' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'ccb' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'rtn_q' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'rtn_obj' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'rtn' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'slot_count' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'reserved_count' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'waiters' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'fence_ctx' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'id' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'seqno' description in 'pvr_device' pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Frank Binns <frank.binns@imgtec.com> Cc: Donald Robson <donald.robson@imgtec.com> Cc: Matt Coster <matt.coster@imgtec.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: David Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: dri-devel@lists.freedesktop.org Cc: Jonathan Corbet <corbet@lwn.net> Cc: Vegard Nossum <vegard.nossum@oracle.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231231054910.31805-1-rdunlap@infradead.org 
Correct all kernel-doc notation on pvr_device.h so that there are no
kernel-doc warnings remaining.

pvr_device.h:292: warning: Excess struct member 'active' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'idle' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'work' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'old_kccb_cmds_executed' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'kccb_stall_count' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'ccb' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'rtn_q' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'rtn_obj' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'rtn' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'slot_count' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'reserved_count' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'waiters' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'fence_ctx' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'id' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'seqno' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'active' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'idle' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'work' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'old_kccb_cmds_executed' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'kccb_stall_count' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'ccb' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'rtn_q' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'rtn_obj' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'rtn' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'slot_count' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'reserved_count' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'waiters' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'fence_ctx' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'id' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'seqno' description in 'pvr_device'
pvr_device.h:292: warning: Excess struct member 'lock' description in 'pvr_device'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Frank Binns <frank.binns@imgtec.com>
Cc: Donald Robson <donald.robson@imgtec.com>
Cc: Matt Coster <matt.coster@imgtec.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231231054910.31805-1-rdunlap@infradead.org
Merge tag 'drm-misc-next-fixes-2023-12-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-next 2023-12-22T04:36:03+00:00 Dave Airlie airlied@redhat.com 2023-12-22T03:13:36+00:00 dc83fb6e38fe5a507b4d714a5dfb0902790c3b3f More fixes for the new imagination drier, a DT node refcount fix for the new aux bridge driver and a missing header fix for the LUT management code. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/42dw6ok2g5kz5xljrw7t6lzrgafhwslgw3j4rbaaivluv24vkj@k4smx5r3y2gh 
More fixes for the new imagination drier, a DT node refcount fix for the
new aux bridge driver and a missing header fix for the LUT management
code.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/42dw6ok2g5kz5xljrw7t6lzrgafhwslgw3j4rbaaivluv24vkj@k4smx5r3y2gh
Merge tag 'drm-msm-next-2023-12-15' of https://gitlab.freedesktop.org/drm/msm into drm-next 2023-12-19T21:54:03+00:00 Dave Airlie airlied@redhat.com 2023-12-19T21:43:25+00:00 22a2decedfbeb981df04dca880412b9520b2f8a1 Updates for v6.8: Core: - Add support for SDM670, SM8650 - Handle the CFG interconnect to fix the obscure hangs / timeouts on register write - Kconfig fix for QMP dependency - DT schema fixes DPU: - Add support for SDM670, SM8650 - Enable SmartDMA on SM8350 and SM8450 - Correct UBWC settings for SC8280XP - Fix catalog settings for SC8180X - Actually make use of the version to switch between QSEED3/3LITE/4 scalers - Use devres-managed and drm-managed allocations where appropriate - misc other fixes - Enabled YUV writeback on SC7280, SM8250 - Enabled writeback on SM8350, SM8450 - CRC fix when encoder is selected as the input source - other misc fixes MDP4: - Use devres-managed and drm-managed allocations where appropriate - flush vblank event on CRTC disable MDP5: - Use devres-managed and drm-managed allocations where appropriate DP: - Add support for SM8650 - Enable PM runtime support - Merge msm-specific debugfs dir with the generic one - Described DisplayPort on SM8150 in DeviceTree bindings - Moved dp_display_get_next_bridge() to probe() DSI: - Add support for SM8650 - Enable PM runtime support GPU/GEM: - demote userspace triggerable warnings to debug - add GEM object metadata UAPI - move GPU devcoredumps to GPU device - fix hangcheck to skip retired submits - expose UBWC config to userspace - fix a680 chip-id - drm_exec conversion - drm/ci: remove rebase-merge directory (to unblock CI) [airlied: fix drm_exec/amd interaction] Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGs9auYqmo-7NSd9FsbNBCDf7aBevd=4xkcF3A5G_OGvMQ@mail.gmail.com 
Updates for v6.8:

Core:
- Add support for SDM670, SM8650
- Handle the CFG interconnect to fix the obscure hangs / timeouts
  on register write
- Kconfig fix for QMP dependency
- DT schema fixes

DPU:
- Add support for SDM670, SM8650
- Enable SmartDMA on SM8350 and SM8450
- Correct UBWC settings for SC8280XP
- Fix catalog settings for SC8180X
- Actually make use of the version to switch between QSEED3/3LITE/4
  scalers
- Use devres-managed and drm-managed allocations where appropriate
- misc other fixes
- Enabled YUV writeback on SC7280, SM8250
- Enabled writeback on SM8350, SM8450
- CRC fix when encoder is selected as the input source
- other misc fixes

MDP4:
- Use devres-managed and drm-managed allocations where appropriate
- flush vblank event on CRTC disable

MDP5:
- Use devres-managed and drm-managed allocations where appropriate

DP:
- Add support for SM8650
- Enable PM runtime support
- Merge msm-specific debugfs dir with the generic one
- Described DisplayPort on SM8150 in DeviceTree bindings
- Moved dp_display_get_next_bridge() to probe()

DSI:
- Add support for SM8650
- Enable PM runtime support

GPU/GEM:
- demote userspace triggerable warnings to debug
- add GEM object metadata UAPI
- move GPU devcoredumps to GPU device
- fix hangcheck to skip retired submits
- expose UBWC config to userspace
- fix a680 chip-id
- drm_exec conversion
- drm/ci: remove rebase-merge directory (to unblock CI)

[airlied: fix drm_exec/amd interaction]
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <robdclark@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/CAF6AEGs9auYqmo-7NSd9FsbNBCDf7aBevd=4xkcF3A5G_OGvMQ@mail.gmail.com
drm/imagination: Fix error path in pvr_vm_create_context 2023-12-15T13:04:21+00:00 Donald Robson donald.robson@imgtec.com 2023-12-13T14:44:31+00:00 8a53e29fe05c56f643eaab285f224c09b9c3dd4c It is possible to double free the vm_ctx->mmu_ctx object in this function.     630 err_page_table_destroy: --> 631         pvr_mmu_context_destroy(vm_ctx->mmu_ctx); The pvr_vm_context_put() function does:         kref_put(&vm_ctx->ref_count, pvr_vm_context_release); Here the pvr_vm_context_release() will call:         pvr_mmu_context_destroy(vm_ctx->mmu_ctx); Refactor to an unwind style. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Donald Robson <donald.robson@imgtec.com> Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231213144431.94956-2-donald.robson@imgtec.com 
It is possible to double free the vm_ctx->mmu_ctx object in this
function.

    630 err_page_table_destroy:
--> 631         pvr_mmu_context_destroy(vm_ctx->mmu_ctx);

The pvr_vm_context_put() function does:

        kref_put(&vm_ctx->ref_count, pvr_vm_context_release);

Here the pvr_vm_context_release() will call:

        pvr_mmu_context_destroy(vm_ctx->mmu_ctx);

Refactor to an unwind style.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231213144431.94956-2-donald.robson@imgtec.com
drm/imagination: Fix ERR_PTR test on pointer to pointer. 2023-12-15T13:04:16+00:00 Donald Robson donald.robson@imgtec.com 2023-12-13T14:44:30+00:00 f175498378bdae2ebcf61170a2a866cb96e8a69a drivers/gpu/drm/imagination/pvr_vm.c:631 pvr_vm_create_context() error: 'vm_ctx->mmu_ctx' dereferencing possible ERR_PTR() 612 vm_ctx->mmu_ctx = pvr_mmu_context_create(pvr_dev); 613 err = PTR_ERR_OR_ZERO(&vm_ctx->mmu_ctx); ^ The address is never an error pointer so this will always return 0. Remove the ampersand. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231213144431.94956-1-donald.robson@imgtec.com 
drivers/gpu/drm/imagination/pvr_vm.c:631 pvr_vm_create_context()
  error: 'vm_ctx->mmu_ctx' dereferencing possible ERR_PTR()

612         vm_ctx->mmu_ctx = pvr_mmu_context_create(pvr_dev);
613         err = PTR_ERR_OR_ZERO(&vm_ctx->mmu_ctx);
                                      ^
The address is never an error pointer so this will always return 0.
Remove the ampersand.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231213144431.94956-1-donald.robson@imgtec.com
drm/imagination: Fixed oops when misusing ioctl CREATE_HWRT_DATASET 2023-12-15T13:04:08+00:00 Donald Robson donald.robson@imgtec.com 2023-12-08T16:30:19+00:00 f1f55ed3ffe4212f5c96106bf6396c461a2bf223 While writing the matching IGT suite I discovered that it's possible to cause a kernel oops when using DRM_IOCTL_PVR_CREATE_HWRT_DATASET when the call to hwrt_init_common_fw_structure() fails. Use an unwind-type error path to avoid cleaning up the object using the the release function before it is fully resolved. Signed-off-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231208163019.95913-1-donald.robson@imgtec.com 
While writing the matching IGT suite I discovered that it's possible to
cause a kernel oops when using DRM_IOCTL_PVR_CREATE_HWRT_DATASET when
the call to hwrt_init_common_fw_structure() fails.

Use an unwind-type error path to avoid cleaning up the object using the
the release function before it is fully resolved.

Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231208163019.95913-1-donald.robson@imgtec.com
drm/imagination: Fixed infinite loop in pvr_vm_mips_map() 2023-12-15T13:03:57+00:00 Donald Robson donald.robson@imgtec.com 2023-12-08T16:08:25+00:00 b39610c773431ac7991cf6235e26d693ccabd9e9 Unwinding loop in error path for this function uses unsigned limit variable, causing the promotion of the signed counter variable. --> 204 for (; pfn >= start_pfn; pfn--) ^^^^^^^^^^^^^^^^ If start_pfn can be zero then this is an endless loop. I've seen this code in other places as well. This loop is slightly off as well. It should decrement pfn on the first iteration. Fix by making the loop limit variables signed. Also fix missing predecrement by modifying to while loop. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231208160825.92933-1-donald.robson@imgtec.com 
Unwinding loop in error path for this function uses unsigned limit
variable, causing the promotion of the signed counter variable.

--> 204         for (; pfn >= start_pfn; pfn--)
                       ^^^^^^^^^^^^^^^^
If start_pfn can be zero then this is an endless loop.  I've seen this
code in other places as well.  This loop is slightly off as well.  It
should decrement pfn on the first iteration.

Fix by making the loop limit variables signed. Also fix missing
predecrement by modifying to while loop.

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Donald Robson <donald.robson@imgtec.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231208160825.92933-1-donald.robson@imgtec.com
drm/imagination: vm: Fix heap lookup condition 2023-12-13T15:19:01+00:00 Alex Bee knaerzche@gmail.com 2023-12-08T17:08:56+00:00 ec2cbaf604f4a5f4bc5484ae86016ebe91236fdc When conditionally checking for heap existence of a certian address in pvr_vm_bind_op_map_init the condition whether the map request comes from a user is incorrect: The context must not be the kernel-context to be a user(space) context and should be looked up in pvr_heaps. That makes addresses coming from userspace not being verfied against the defined ranges and prevents firmware loading for meta cores. Fixes: ff5f643de0bf ("drm/imagination: Add GEM and VM related code") Signed-off-by: Alex Bee <knaerzche@gmail.com> Reviewed-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231208170856.1748413-1-knaerzche@gmail.com 
When conditionally checking for heap existence of a certian address in
pvr_vm_bind_op_map_init the condition whether the map request comes from a
user is incorrect: The context must not be the kernel-context to be a
user(space) context and should be looked up in pvr_heaps.

That makes addresses coming from userspace not being verfied against the
defined ranges and prevents firmware loading for meta cores.

Fixes: ff5f643de0bf ("drm/imagination: Add GEM and VM related code")
Signed-off-by: Alex Bee <knaerzche@gmail.com>
Reviewed-by: Donald Robson <donald.robson@imgtec.com>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231208170856.1748413-1-knaerzche@gmail.com