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| author | Danijel Slivka <danijel.slivka@amd.com> | 2022-10-04 15:39:44 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-11-10 18:17:25 +0100 |
| commit | d7414b65e804e215d60e2fe12a6985bb061dc22b (patch) | |
| tree | 71cf2dab2342b7843f635eb9ee45b92be037b0f6 /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | |
| parent | 8b8fecb299f9237f6e5a038c22fba7e9e0d53a0e (diff) | |
drm/amdgpu: set vm_update_mode=0 as default for Sienna Cichlid in SRIOV case
[ Upstream commit 65f8682b9aaae20c2cdee993e6fe52374ad513c9 ]
For asic with VF MMIO access protection avoid using CPU for VM table updates.
CPU pagetable updates have issues with HDP flush as VF MMIO access protection
blocks write to mmBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL register
during sriov runtime.
v3: introduce virtualization capability flag AMDGPU_VF_MMIO_ACCESS_PROTECT
which indicates that VF MMIO write access is not allowed in sriov runtime
Signed-off-by: Danijel Slivka <danijel.slivka@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h index 239f232f9c02..617d072275eb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h @@ -31,6 +31,7 @@ #define AMDGPU_SRIOV_CAPS_IS_VF (1 << 2) /* this GPU is a virtual function */ #define AMDGPU_PASSTHROUGH_MODE (1 << 3) /* thw whole GPU is pass through for VM */ #define AMDGPU_SRIOV_CAPS_RUNTIME (1 << 4) /* is out of full access mode */ +#define AMDGPU_VF_MMIO_ACCESS_PROTECT (1 << 5) /* MMIO write access is not allowed in sriov runtime */ /* flags for indirect register access path supported by rlcg for sriov */ #define AMDGPU_RLCG_GC_WRITE_LEGACY (0x8 << 28) @@ -294,6 +295,9 @@ struct amdgpu_video_codec_info; #define amdgpu_passthrough(adev) \ ((adev)->virt.caps & AMDGPU_PASSTHROUGH_MODE) +#define amdgpu_sriov_vf_mmio_access_protection(adev) \ +((adev)->virt.caps & AMDGPU_VF_MMIO_ACCESS_PROTECT) + static inline bool is_virtual_machine(void) { #if defined(CONFIG_X86) |