| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.10 517/663] drm/amdgpu: Set reference clock to 100Mhz on Renoir (v2) | Date | Mon, 1 Mar 2021 17:12:45 +0100 |
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From: Alex Deucher <alexander.deucher@amd.com>
commit 6e80fb8ab04f6c4f377e2fd422bdd1855beb7371 upstream.
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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- drivers/gpu/drm/amd/amdgpu/soc15.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c +++ b/drivers/gpu/drm/amd/amdgpu/soc15.c @@ -246,6 +246,8 @@ static u32 soc15_get_xclk(struct amdgpu_ { 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;
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