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drm/amdgpu: correct discovery_tmr_size init val

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The legacy way to initialize discovery_tmr_size
is using DISCOVERY_TMR_SIZE, while after we reduce
DISCOVERY_TMR_SIZE from 64KB to 4KB, variable
discovery_tmr_size is also reduced to 4KB, this is not
correct, it still should be 64KB, discovery_tmr_size
will be used to calculate ip_discovery reserved mem's
start address and size.

Using DISCOVERY_TMR_OFFSET to init discovery_tmr_size instead.

Signed-off-by: Wenhui Sheng <Wenhui.Sheng@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wenhui Sheng
2020-06-29 13:38:58 +08:00
committed by Alex Deucher
parent d818ed288a
commit f56071d440
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
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@@ -1867,7 +1867,7 @@ static int amdgpu_ttm_reserve_tmr(struct amdgpu_device *adev)
adev->discovery_tmr_size =
amdgpu_atomfirmware_get_fw_reserved_fb_size(adev);
if (!adev->discovery_tmr_size)
adev->discovery_tmr_size = DISCOVERY_TMR_SIZE;
adev->discovery_tmr_size = DISCOVERY_TMR_OFFSET;
if (mem_train_support) {
/* reserve vram for mem train according to TMR location */