diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2024-09-13 17:17:19 +0530 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-10-15 11:19:46 -0400 |
| commit | b3c687169256ec637172b661cf59518eb756db28 (patch) | |
| tree | 80b1201e61897d2bf07bda005f728d1095bbb171 /drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | |
| parent | 40f2cd98828f454bdc5006ad3d94330a5ea164b7 (diff) | |
drm/amdgpu: Fetch NPS mode for GCv9.4.3 VFs
Use the memory ranges published in discovery table to deduce NPS mode
of GC v9.4.3 VFs.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Vignesh Chander <Vignesh.Chander@amd.com>
Tested-by: Vignesh Chander <Vignesh.Chander@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 30 |
1 files changed, 28 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c index bfbfbcc9b89b..010db0e58650 100644 --- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c @@ -1387,10 +1387,29 @@ gmc_v9_0_get_memory_partition(struct amdgpu_device *adev, u32 *supp_modes) } static enum amdgpu_memory_partition +gmc_v9_0_query_vf_memory_partition(struct amdgpu_device *adev) +{ + switch (adev->gmc.num_mem_partitions) { + case 0: + return UNKNOWN_MEMORY_PARTITION_MODE; + case 1: + return AMDGPU_NPS1_PARTITION_MODE; + case 2: + return AMDGPU_NPS2_PARTITION_MODE; + case 4: + return AMDGPU_NPS4_PARTITION_MODE; + default: + return AMDGPU_NPS1_PARTITION_MODE; + } + + return AMDGPU_NPS1_PARTITION_MODE; +} + +static enum amdgpu_memory_partition gmc_v9_0_query_memory_partition(struct amdgpu_device *adev) { if (amdgpu_sriov_vf(adev)) - return AMDGPU_NPS1_PARTITION_MODE; + return gmc_v9_0_query_vf_memory_partition(adev); return gmc_v9_0_get_memory_partition(adev, NULL); } @@ -1935,6 +1954,8 @@ gmc_v9_0_init_sw_mem_ranges(struct amdgpu_device *adev, switch (mode) { case UNKNOWN_MEMORY_PARTITION_MODE: + adev->gmc.num_mem_partitions = 0; + break; case AMDGPU_NPS1_PARTITION_MODE: adev->gmc.num_mem_partitions = 1; break; @@ -1954,7 +1975,7 @@ gmc_v9_0_init_sw_mem_ranges(struct amdgpu_device *adev, /* Use NPS range info, if populated */ r = amdgpu_gmc_get_nps_memranges(adev, mem_ranges, - adev->gmc.num_mem_partitions); + &adev->gmc.num_mem_partitions); if (!r) { l = 0; for (i = 1; i < adev->gmc.num_mem_partitions; ++i) { @@ -1964,6 +1985,11 @@ gmc_v9_0_init_sw_mem_ranges(struct amdgpu_device *adev, } } else { + if (!adev->gmc.num_mem_partitions) { + dev_err(adev->dev, + "Not able to detect NPS mode, fall back to NPS1"); + adev->gmc.num_mem_partitions = 1; + } /* Fallback to sw based calculation */ size = (adev->gmc.real_vram_size + SZ_16M) >> AMDGPU_GPU_PAGE_SHIFT; size /= adev->gmc.num_mem_partitions; |