kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.h, branch v6.19.11

drm/amdgpu: Add ioctl to get all gem handles for a process

2025-09-02T19:34:00+00:00

Add new ioctl DRM_IOCTL_AMDGPU_GEM_LIST_HANDLES. This ioctl returns a list of bos with their handles, sizes, and flags and domains. This ioctl is meant to be used during CRIU checkpoint and provide information needed to reconstruct the bos in CRIU restore. Userspace for this and the next change can be found at https://github.com/checkpoint-restore/criu/pull/2613 Signed-off-by: David Francis Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: Allow more flags to be set on gem create.

2025-09-02T19:34:00+00:00

The GEM create flag AMDGPU_GEM_CREATE_VRAM_WIPE_ON_RELEASE specifies that gem memory contains sensitive information and should be cleared to prevent snooping. The COHERENT and UNCACHED gem create flags enable memory features related to sharing memory across devices. For CRIU we need to re-create KFD BOs through the GEM_CREATE IOCTL, so allow those KFD specific flags here as well. This will also aid us in the future and allows to move the KFD components over using the render node for allocations. Signed-off-by: David Francis Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: rework how PTE flags are generated v3

2025-08-04T18:26:38+00:00

Previously we tried to keep the HW specific PTE flags in each mapping, but for CRIU that isn't sufficient any more since the original value is needed for the checkpoint procedure. So rework the whole handling, nuke the early mapping function, keep the UAPI flags in each mapping instead of the HW flags and translate them to the HW flags while filling in the PTEs. Only tested on Navi 23 for now, so probably needs quite a bit of more work. v2: fix KFD and SVN handling v3: one more SVN fix pointed out by Felix v4: squash in gfx12 fix from David Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: use GEM references instead of TTMs v2

2024-09-18T20:15:13+00:00

Instead of a TTM reference grab a GEM reference whenever necessary. v2: fix typo in amdgpu_bo_unref pointed out by Vitaly, initialize the GEM funcs for kernel allocations as well. Signed-off-by: Christian König Reviewed-by: Daniel Vetter (v1) Signed-off-by: Alex Deucher

drm/amdkfd: Store xcp partition id to amdgpu bo

2023-06-09T14:36:38+00:00

For memory accounting per compute partition and export drm amdgpu bo and then import to KFD, we need the xcp id to account the memory usage or find the KFD node of the original amdgpu bo to create the KFD bo on the correct adev KFD node. Set xcp_id_plus1 of amdgpu_bo_param to create bo and store xcp_id to amddgpu bo. Add helper macro to get the mem_id from adev and xcp_id. v2: squash in fix ("drm/amdgpu: Fix BO creation failure on GFX 9.4.3 dGPU") Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Add memory partition mem_id to amdgpu_bo

2023-06-09T14:00:00+00:00

Add mem_id_plus1 parameter to amdgpu_gem_object_create and pass it to amdgpu_bo_create. For dGPU mode allocation, mem_id is used by VRAM manager to get the memory partition fpfn, lpfn from xcp manager. For APU native mode allocation, mem_id is used to get NUMA node id from xcp manager, then pass to TTM as numa pool id to alloc memory from the specific NUMA node. mem_id -1 means for entire VRAM or any NUMA nodes. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Introduce GEM object functions

2020-09-25T07:19:42+00:00

GEM object functions deprecate several similar callback interfaces in struct drm_driver. This patch replaces the per-driver callbacks with per-instance callbacks in amdgpu. The only exception is gem_prime_mmap, which is non-trivial to convert. v3: * remove amdgpu_object.c from patch (Christian) v2: * move object-function instance to amdgpu_gem.c (Christian) * set callbacks in amdgpu_gem_object_create() (Christian) Signed-off-by: Thomas Zimmermann Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20200923102159.24084-2-tzimmermann@suse.de

drm/amdgpu: cleanup mtype mapping

2019-09-16T14:59:21+00:00

Unify how we map the UAPI flags to the PTE hardware flags for a mapping. Only the MTYPE is actually ASIC dependent, all other flags should be copied over 1 to 1 and ASIC differences are handled later on. Signed-off-by: Christian König Signed-off-by: Alex Deucher

dma-buf: rename reservation_object to dma_resv

2019-08-13T07:09:30+00:00

Be more consistent with the naming of the other DMA-buf objects. Signed-off-by: Christian König Reviewed-by: Chris Wilson Link: https://patchwork.freedesktop.org/patch/323401/

drm/amdgpu: use embedded gem object

2019-08-06T06:21:54+00:00

Drop drm_gem_object from amdgpu_bo, use the ttm_buffer_object.base instead. Build tested only. Signed-off-by: Gerd Hoffmann Reviewed-by: Christian König Link: http://patchwork.freedesktop.org/patch/msgid/20190805140119.7337-6-kraxel@redhat.com