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| author | Alex Deucher <alexander.deucher@amd.com> | 2023-06-07 12:43:30 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-23 15:35:16 -0400 |
| commit | c09b3bf7363db982b17950b8e4f27b0564817301 (patch) | |
| tree | 970fc1f176abb6a0ad805953917ef3773a1116bd /drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | |
| parent | 4e3f85d1c071ed174aa5a7477d499d576412df3b (diff) | |
| download | linux-c09b3bf7363db982b17950b8e4f27b0564817301.tar.gz linux-c09b3bf7363db982b17950b8e4f27b0564817301.tar.bz2 linux-c09b3bf7363db982b17950b8e4f27b0564817301.zip | |
drm/amdgpu/atomfirmware: fix LPDDR5 width reporting
LPDDR5 channels are 32 bit rather than 64, report the width properly
in the log.
v2: Only LPDDR5 are 32 bits per channel. DDR5 is 64 bits per channel
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2468
Acked-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c index ef4b9a41f20a..0b7f4c4d58e5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c @@ -327,10 +327,13 @@ amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev, mem_channel_number = igp_info->v11.umachannelnumber; if (!mem_channel_number) mem_channel_number = 1; - /* channel width is 64 */ - if (vram_width) - *vram_width = mem_channel_number * 64; mem_type = igp_info->v11.memorytype; + if (mem_type == LpDdr5MemType) + mem_channel_width = 32; + else + mem_channel_width = 64; + if (vram_width) + *vram_width = mem_channel_number * mem_channel_width; if (vram_type) *vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type); break; @@ -345,10 +348,13 @@ amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev, mem_channel_number = igp_info->v21.umachannelnumber; if (!mem_channel_number) mem_channel_number = 1; - /* channel width is 64 */ - if (vram_width) - *vram_width = mem_channel_number * 64; mem_type = igp_info->v21.memorytype; + if (mem_type == LpDdr5MemType) + mem_channel_width = 32; + else + mem_channel_width = 64; + if (vram_width) + *vram_width = mem_channel_number * mem_channel_width; if (vram_type) *vram_type = convert_atom_mem_type_to_vram_type(adev, mem_type); break; |