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path: root/drivers/gpu/drm/drm_gpuvm.c
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2023-12-20Merge tag 'drm-msm-next-2023-12-15' of ↵Dave Airlie1-2/+2
https://gitlab.freedesktop.org/drm/msm into drm-next 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
2023-12-12Backmerge tag 'v6.7-rc5' into drm-nextDave Airlie1-1/+1
Linux 6.7-rc5 Alex requested this for some amdkfd work relying on the symbols exports. Signed-off-by: Dave Airlie <airlied@redhat.com>
2023-12-10drm/exec: Pass in initial # of objectsRob Clark1-2/+2
In cases where the # is known ahead of time, it is silly to do the table resize dance. Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Christian König <christian.koenig@amd.com> Patchwork: https://patchwork.freedesktop.org/patch/568338/
2023-12-05drm/gpuvm: Let drm_gpuvm_bo_put() report when the vm_bo object is destroyedBoris Brezillon1-2/+6
Some users need to release resources attached to the vm_bo object when it's destroyed. In Panthor's case, we need to release the pin ref so BO pages can be returned to the system when all GPU mappings are gone. This could be done through a custom drm_gpuvm::vm_bo_free() hook, but this has all sort of locking implications that would force us to expose a drm_gem_shmem_unpin_locked() helper, not to mention the fact that having a ::vm_bo_free() implementation without a ::vm_bo_alloc() one seems odd. So let's keep things simple, and extend drm_gpuvm_bo_put() to report when the object is destroyed. Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231204151406.1977285-1-boris.brezillon@collabora.com
2023-12-05drm/gpuvm: fall back to drm_exec_lock_obj()Danilo Krummrich1-5/+38
Fall back to drm_exec_lock_obj() if num_fences is zero for the drm_gpuvm_prepare_* function family. Otherwise dma_resv_reserve_fences() would actually allocate slots even though num_fences is zero. Cc: Christian König <christian.koenig@amd.com> Acked-by: Donald Robson <donald.robson@imgtec.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231129220835.297885-2-dakr@redhat.com
2023-11-28drm/gpuvm: Fix deprecated license identifierThomas Hellström1-1/+1
"GPL-2.0-only" in the license header was incorrectly changed to the now deprecated "GPL-2.0". Fix. Cc: Maxime Ripard <mripard@kernel.org> Cc: Danilo Krummrich <dakr@redhat.com> Reported-by: David Edelsohn <dje.gcc@gmail.com> Closes: https://lore.kernel.org/dri-devel/5lfrhdpkwhpgzipgngojs3tyqfqbesifzu5nf4l5q3nhfdhcf2@25nmiq7tfrew/T/#m5c356d68815711eea30dd94cc6f7ea8cd4344fe3 Fixes: f7749a549b4f ("drm/gpuvm: Dual-licence the drm_gpuvm code GPL-2.0 OR MIT") Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by: Maxime Ripard <mripard@kernel.org> Acked-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231106114827.62492-1-thomas.hellstrom@linux.intel.com
2023-11-13drm/gpuvm: track/lock/validate external/evicted objectsDanilo Krummrich1-0/+633
Currently the DRM GPUVM offers common infrastructure to track GPU VA allocations and mappings, generically connect GPU VA mappings to their backing buffers and perform more complex mapping operations on the GPU VA space. However, there are more design patterns commonly used by drivers, which can potentially be generalized in order to make the DRM GPUVM represent a basis for GPU-VM implementations. In this context, this patch aims at generalizing the following elements. 1) Provide a common dma-resv for GEM objects not being used outside of this GPU-VM. 2) Provide tracking of external GEM objects (GEM objects which are shared with other GPU-VMs). 3) Provide functions to efficiently lock all GEM objects dma-resv the GPU-VM contains mappings of. 4) Provide tracking of evicted GEM objects the GPU-VM contains mappings of, such that validation of evicted GEM objects is accelerated. 5) Provide some convinience functions for common patterns. Big thanks to Boris Brezillon for his help to figure out locking for drivers updating the GPU VA space within the fence signalling path. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Suggested-by: Matthew Brost <matthew.brost@intel.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-12-dakr@redhat.com
2023-11-13drm/gpuvm: add an abstraction for a VM / BO combinationDanilo Krummrich1-47/+293
Add an abstraction layer between the drm_gpuva mappings of a particular drm_gem_object and this GEM object itself. The abstraction represents a combination of a drm_gem_object and drm_gpuvm. The drm_gem_object holds a list of drm_gpuvm_bo structures (the structure representing this abstraction), while each drm_gpuvm_bo contains list of mappings of this GEM object. This has multiple advantages: 1) We can use the drm_gpuvm_bo structure to attach it to various lists of the drm_gpuvm. This is useful for tracking external and evicted objects per VM, which is introduced in subsequent patches. 2) Finding mappings of a certain drm_gem_object mapped in a certain drm_gpuvm becomes much cheaper. 3) Drivers can derive and extend the structure to easily represent driver specific states of a BO for a certain GPUVM. The idea of this abstraction was taken from amdgpu, hence the credit for this idea goes to the developers of amdgpu. Cc: Christian König <christian.koenig@amd.com> Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-11-dakr@redhat.com
2023-11-13drm/gpuvm: reference count drm_gpuvm structuresDanilo Krummrich1-11/+45
Implement reference counting for struct drm_gpuvm. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-10-dakr@redhat.com
2023-11-13drm/gpuvm: add drm_gpuvm_flags to drm_gpuvmDanilo Krummrich1-0/+3
Introduce flags for struct drm_gpuvm, this required by subsequent commits. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-8-dakr@redhat.com
2023-11-13drm/gpuvm: add common dma-resv per struct drm_gpuvmDanilo Krummrich1-0/+53
Provide a common dma-resv for GEM objects not being used outside of this GPU-VM. This is used in a subsequent patch to generalize dma-resv, external and evicted object handling and GEM validation. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-6-dakr@redhat.com
2023-11-13drm/gpuvm: export drm_gpuvm_range_valid()Danilo Krummrich1-1/+13
Drivers may use this function to validate userspace requests in advance, hence export it. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-4-dakr@redhat.com
2023-11-13drm/gpuvm: don't always WARN in drm_gpuvm_check_overflow()Danilo Krummrich1-7/+13
Don't always WARN in drm_gpuvm_check_overflow() and separate it into a drm_gpuvm_check_overflow() and a dedicated drm_gpuvm_warn_check_overflow() variant. This avoids printing warnings due to invalid userspace requests. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-3-dakr@redhat.com
2023-11-13drm/gpuvm: convert WARN() to drm_WARN() variantsDanilo Krummrich1-15/+17
Use drm_WARN() and drm_WARN_ON() variants to indicate drivers the context the failing VM resides in. Acked-by: Christian König <christian.koenig@amd.com> Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-2-dakr@redhat.com
2023-10-17drm/gpuvm: Dual-licence the drm_gpuvm code GPL-2.0 OR MITThomas Hellström1-1/+1
Dual-licence in order to make it possible for other non-GPL os'es to re-implement the code. The use of EXPORT_SYMBOL_GPL() is intentionally left untouched to prevent use of drm_gpuvm as a proxy for non-GPL drivers to access GPL-only kernel symbols. Much of the ideas and algorithms used in the drm_gpuvm code is already present in one way or another in MIT-licensed code. Cc: Danilo Krummrich <dakr@redhat.com> Cc: airlied@gmail.com Cc: daniel@ffwll.ch Cc: linux-kernel@vger.kernel.org Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by: Danilo Krummrich <dakr@redhat.com> Reviewed-by: Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231010142725.8920-1-thomas.hellstrom@linux.intel.com
2023-09-29Merge tag 'drm-misc-next-2023-09-27' of ↵Dave Airlie1-0/+1726
git://anongit.freedesktop.org/drm/drm-misc into drm-next drm-misc-next for v6.7-rc1: UAPI Changes: - drm_file owner is now updated during use, in the case of a drm fd opened by the display server for a client, the correct owner is displayed. - Qaic gains support for the QAIC_DETACH_SLICE_BO ioctl to allow bo recycling. Cross-subsystem Changes: - Disable boot logo for au1200fb, mmpfb and unexport logo helpers. Only fbcon should manage display of logo. - Update freescale in MAINTAINERS. - Add some bridge files to bridge in MAINTAINERS. - Update gma500 driver repo in MAINTAINERS to point to drm-misc. Core Changes: - Move size computations to drm buddy allocator. - Make drm_atomic_helper_shutdown(NULL) a nop. - Assorted small fixes in drm_debugfs, DP-MST payload addition error handling. - Fix DRM_BRIDGE_ATTACH_NO_CONNECTOR handling. - Handle bad (h/v)sync_end in EDID by clipping to htotal. - Build GPUVM as a module. Driver Changes: - Simple drivers don't need to cache prepared result. - Call drm_atomic_helper_shutdown() in shutdown/unbind for a whole lot more drm drivers. - Assorted small fixes in amdgpu, ssd130x, bridge/it6621, accel/qaic, nouveau, tc358768. - Add NV12 for komeda writeback. - Add arbitration lost event to synopsis/dw-hdmi-cec. - Speed up s/r in nouveau by not restoring some big bo's. - Assorted nouveau display rework in preparation for GSP-RM, especially related to how the modeset sequence works and the DP sequence in relation to link training. - Update anx7816 panel. - Support NVSYNC and NHSYNC in tegra. - Allow multiple power domains in simple driver. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/f1fae5eb-25b8-192a-9a53-215e1184ce81@linux.intel.com
2023-09-26drm/gpuvm: allow building as moduleDanilo Krummrich1-0/+3
Currently, the DRM GPUVM does not have any core dependencies preventing a module build. Also, new features from subsequent patches require helpers (namely drm_exec) which can be built as module. Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230920144343.64830-3-dakr@redhat.com
2023-09-26drm/gpuvm: rename struct drm_gpuva_manager to struct drm_gpuvmDanilo Krummrich1-0/+1725
Rename struct drm_gpuva_manager to struct drm_gpuvm including corresponding functions. This way the GPUVA manager's structures align very well with the documentation of VM_BIND [1] and VM_BIND locking [2]. It also provides a better foundation for the naming of data structures and functions introduced for implementing a common dma-resv per GPU-VM including tracking of external and evicted objects in subsequent patches. [1] Documentation/gpu/drm-vm-bind-async.rst [2] Documentation/gpu/drm-vm-bind-locking.rst Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com> Cc: Matthew Brost <matthew.brost@intel.com> Acked-by: Dave Airlie <airlied@redhat.com> Acked-by: Christian König <christian.koenig@amd.com> Signed-off-by: Danilo Krummrich <dakr@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230920144343.64830-2-dakr@redhat.com
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