]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commitdiff
drm/amdgpu: Set reference clock to 100Mhz on Renoir (v2)
authorAlex Deucher <alexander.deucher@amd.com>
Tue, 16 Feb 2021 15:57:00 +0000 (10:57 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 18 Feb 2021 21:43:09 +0000 (16:43 -0500)
Fixes the rlc reference clock used for GPU timestamps.
Value is 100Mhz.  Confirmed with hardware team.

v2: reword commit message.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1480
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
drivers/gpu/drm/amd/amdgpu/soc15.c

index e865495d3ead163f6d9b624b28b79ce49432d94a..1221aa6b40a9f53d8b7c18d88727ad9815cebfd8 100644 (file)
@@ -233,6 +233,8 @@ static u32 soc15_get_xclk(struct amdgpu_device *adev)
 {
        u32 reference_clock = adev->clock.spll.reference_freq;
 
+       if (adev->asic_type == CHIP_RENOIR)
+               return 10000;
        if (adev->asic_type == CHIP_RAVEN)
                return reference_clock / 4;