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| author | Christian König <christian.koenig@amd.com> | 2018-01-29 16:03:50 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:19:05 -0500 |
| commit | 6b034e25c86805d14259668a3ce6dc27c7509557 (patch) | |
| tree | 3bc5ebb71908bdb9a4982b5b904636d6465eed57 | |
| parent | e2751493fc31f59d31081479918782c2cbda0d56 (diff) | |
| download | linux-6b034e25c86805d14259668a3ce6dc27c7509557.tar.bz2 | |
drm/amdgpu: limit the VM address space with older VCE FW versions
Older VCE FW versions are buggy and can't work with 48bit address
spaces.
RFC: Should we limit the address space or just reject loading the older
VCE firmware?
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h | 2 |
2 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index f828096114c3..e851c66cbb5e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -581,6 +581,11 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file vm_size = adev->vm_manager.max_pfn * AMDGPU_GPU_PAGE_SIZE; vm_size -= AMDGPU_VA_RESERVED_SIZE; + + /* Older VCE FW versions are buggy and can handle only 40bits */ + if (adev->vce.fw_version < AMDGPU_VCE_FW_53_45) + vm_size = min(vm_size, 1ULL << 40); + dev_info.virtual_address_offset = AMDGPU_VA_RESERVED_SIZE; dev_info.virtual_address_max = min(vm_size, AMDGPU_VA_HOLE_START); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h index 0fd378ae92c3..71781267ee4c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vce.h @@ -30,6 +30,8 @@ #define AMDGPU_VCE_HARVEST_VCE0 (1 << 0) #define AMDGPU_VCE_HARVEST_VCE1 (1 << 1) +#define AMDGPU_VCE_FW_53_45 ((53 << 24) | (45 << 16)) + struct amdgpu_vce { struct amdgpu_bo *vcpu_bo; uint64_t gpu_addr; |