[AMD Public Use] You might want to add a comment to the code here. It looks wrong to use the OFFSET. Alex ________________________________ From: amd-gfx on behalf of Wenhui.Sheng Sent: Monday, June 29, 2020 2:07 AM To: amd-gfx@lists.freedesktop.org Cc: Sheng, Wenhui ; Zhang, Hawking Subject: [PATCH] drm/amdgpu: correct discovery_tmr_size init val From: Wenhui Sheng 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 --- drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 7d51768684dd..56beafbd3ab9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -1872,7 +1872,7 @@ 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 */ -- 2.17.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.freedesktop.org%2Fmailman%2Flistinfo%2Famd-gfx&data=02%7C01%7Calexander.deucher%40amd.com%7Cba68c480e1fc4e73952408d81bf2ca8a%7C3dd8961fe4884e608e11a82d994e183d%7C0%7C0%7C637290077543935012&sdata=R0g%2FzsOg%2BoH5%2BccXgnGAhRd0JfMgCTuXlv6yuIQSVuY%3D&reserved=0