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drm/amdgpu: Enable seq64 manager and fix bugs

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- Enable the seq64 mapping sequence.
- Fix wflinfo va conflict and other bugs.

v1:
  - The seq64 area needs to be included in the AMDGPU_VA_RESERVED_SIZE
    otherwise the areas will conflict with user space allocations (Alex)

  - It needs to be mapped read only in the user VM (Alex)

v2:
  - Instead of just one define for TOP/BOTTOM
    reserved space separate them into two (Christian)

  - Fix the CPU and VA calculations and while at it
    also cleanup error handling and kerneldoc (Christian)

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Arunpravin Paneer Selvam
2024-01-11 23:21:13 -08:00
committed by Alex Deucher
parent 059e7c6b8f
commit 00a11f977b
11 changed files with 68 additions and 52 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
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@@ -136,7 +136,11 @@ struct amdgpu_mem_stats;
#define AMDGPU_IS_MMHUB1(x) ((x) >= AMDGPU_MMHUB1_START && (x) < AMDGPU_MAX_VMHUBS)
/* Reserve 2MB at top/bottom of address space for kernel use */
#define AMDGPU_VA_RESERVED_SIZE (2ULL << 20)
#define AMDGPU_VA_RESERVED_CSA_SIZE (2ULL << 20)
#define AMDGPU_VA_RESERVED_SEQ64_SIZE (2ULL << 20)
#define AMDGPU_VA_RESERVED_BOTTOM (2ULL << 20)
#define AMDGPU_VA_RESERVED_TOP (AMDGPU_VA_RESERVED_SEQ64_SIZE + \
AMDGPU_VA_RESERVED_CSA_SIZE)
/* See vm_update_mode */
#define AMDGPU_VM_USE_CPU_FOR_GFX (1 << 0)