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| author |   Oak Zeng <Oak.Zeng@amd.com> | 2019-04-11 14:43:39 -0500 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2019-05-24 12:20:47 -0500 |
| commit | d8e408a82704c86ba87c3d58cfe69dcdb758aa07 (patch) | |
| tree | 3cb4be068142e653816c43541852b5116283a4ff /drivers/gpu/drm/amd/include | |
| parent | drm/amdgpu: Remap hdp coherency registers (diff) | |
| download | linux-dev-d8e408a82704c86ba87c3d58cfe69dcdb758aa07.tar.xz linux-dev-d8e408a82704c86ba87c3d58cfe69dcdb758aa07.zip | |
drm/amdkfd: Expose HDP registers to user space
Introduce a new memory type (KFD_IOC_ALLOC_MEM_FLAGS_MMIO_REMAP) and
expose mmio page of HDP registers to user space through this new
memory type.
v2: moved remapped hdp regs to adev struct
v3: rename the new memory type to ALLOC_MEM_FLAGS_MMIO_REMAP
v4: use more generic function name
v5: Fail remapped mmio allocation for asics before gfx9
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/include')
| -rw-r--r-- | drivers/gpu/drm/amd/include/kgd_kfd_interface.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h index b897aca9b4c9..98b9533e672b 100644 --- a/drivers/gpu/drm/amd/include/kgd_kfd_interface.h +++ b/drivers/gpu/drm/amd/include/kgd_kfd_interface.h @@ -174,6 +174,7 @@ struct tile_config { #define ALLOC_MEM_FLAGS_GTT (1 << 1) #define ALLOC_MEM_FLAGS_USERPTR (1 << 2) #define ALLOC_MEM_FLAGS_DOORBELL (1 << 3) +#define ALLOC_MEM_FLAGS_MMIO_REMAP (1 << 4) /* * Allocation flags attributes/access options. |