|
[AMD Public Use]
Acked-by: Alex Deucher <alexander.deucher@xxxxxxx>
From: Zhao, Jiange <Jiange.Zhao@xxxxxxx>
Sent: Wednesday, March 4, 2020 12:39 AM To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx <amd-gfx@xxxxxxxxxxxxxxxxxxxxx> Cc: Deng, Emily <Emily.Deng@xxxxxxx>; Liu, Monk <Monk.Liu@xxxxxxx>; Deucher, Alexander <Alexander.Deucher@xxxxxxx>; Zhao, Jiange <Jiange.Zhao@xxxxxxx> Subject: [PATCH] drm/amdgpu/sriov: Use VF-accessible register for gpu_clock_count Navi12 VK CTS subtest timestamp.calibrated.dev_domain_test failed
because mmRLC_CAPTURE_GPU_CLOCK_COUNT register cannot be written in VF due to security policy. Solution: use a VF-accessible timestamp register pair mmGOLDEN_TSC_COUNT_LOWER/UPPER for SRIOV case. v2: according to Deucher Alexander's advice, switch to mmGOLDEN_TSC_COUNT_LOWER/UPPER for both bare metal and SRIOV. Signed-off-by: jianzh <Jiange.Zhao@xxxxxxx> --- drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c index 03655c3..22a07ad 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c @@ -35,6 +35,8 @@ #include "gc/gc_10_1_0_offset.h" #include "gc/gc_10_1_0_sh_mask.h" +#include "smuio/smuio_11_0_0_offset.h" +#include "smuio/smuio_11_0_0_sh_mask.h" #include "navi10_enum.h" #include "hdp/hdp_5_0_0_offset.h" #include "ivsrcid/gfx/irqsrcs_gfx_10_1.h" @@ -3925,9 +3927,8 @@ static uint64_t gfx_v10_0_get_gpu_clock_counter(struct amdgpu_device *adev) amdgpu_gfx_off_ctrl(adev, false); mutex_lock(&adev->gfx.gpu_clock_mutex); - WREG32_SOC15(GC, 0, mmRLC_CAPTURE_GPU_CLOCK_COUNT, 1); - clock = (uint64_t)RREG32_SOC15(GC, 0, mmRLC_GPU_CLOCK_COUNT_LSB) | - ((uint64_t)RREG32_SOC15(GC, 0, mmRLC_GPU_CLOCK_COUNT_MSB) << 32ULL); + clock = (uint64_t)RREG32_SOC15(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER) | + ((uint64_t)RREG32_SOC15(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER) << 32ULL); mutex_unlock(&adev->gfx.gpu_clock_mutex); amdgpu_gfx_off_ctrl(adev, true); return clock; -- 2.7.4 |
_______________________________________________ amd-gfx mailing list amd-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/amd-gfx
