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drm/amdgpu/gfx10: add wraparound gpu counter check for APUs as well

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commit 244ee39885 upstream.

Apply the same check we do for dGPUs for APUs as well.

Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alex Deucher
2021-11-18 14:33:23 -05:00
committed by Greg Kroah-Hartman
parent db8ed1e61b
commit 8c501d9cf1
1 changed files with 13 additions and 2 deletions
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drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+13 -2
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@@ -7729,8 +7729,19 @@ static uint64_t gfx_v10_0_get_gpu_clock_counter(struct amdgpu_device *adev)
switch (adev->asic_type) {
case CHIP_VANGOGH:
case CHIP_YELLOW_CARP:
clock = (uint64_t)RREG32_SOC15(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER_Vangogh) |
((uint64_t)RREG32_SOC15(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Vangogh) << 32ULL);
preempt_disable();
clock_hi = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Vangogh);
clock_lo = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER_Vangogh);
hi_check = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Vangogh);
/* The SMUIO TSC clock frequency is 100MHz, which sets 32-bit carry over
* roughly every 42 seconds.
*/
if (hi_check != clock_hi) {
clock_lo = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER_Vangogh);
clock_hi = hi_check;
}
preempt_enable();
clock = clock_lo | (clock_hi << 32ULL);
break;
default:
preempt_disable();