[PATCH] drm/amdgpu: correct gpu clock counter query on cyan skilfish
Lang Yu
Lang.Yu at amd.com
Thu Sep 21 05:54:21 UTC 2023
Cayn skilfish uses SMUIO v11.0.8 offset.
Signed-off-by: Lang Yu <Lang.Yu at amd.com>
Cc: <stable at vger.kernel.org> # v5.15+
---
drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 1d671c330475..c16ca611886b 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -102,6 +102,11 @@
#define mmGCR_GENERAL_CNTL_Sienna_Cichlid 0x1580
#define mmGCR_GENERAL_CNTL_Sienna_Cichlid_BASE_IDX 0
+#define mmGOLDEN_TSC_COUNT_UPPER_Cyan_Skillfish 0x0105
+#define mmGOLDEN_TSC_COUNT_UPPER_Cyan_Skillfish_BASE_IDX 1
+#define mmGOLDEN_TSC_COUNT_LOWER_Cyan_Skillfish 0x0106
+#define mmGOLDEN_TSC_COUNT_LOWER_Cyan_Skillfish_BASE_IDX 1
+
#define mmGOLDEN_TSC_COUNT_UPPER_Vangogh 0x0025
#define mmGOLDEN_TSC_COUNT_UPPER_Vangogh_BASE_IDX 1
#define mmGOLDEN_TSC_COUNT_LOWER_Vangogh 0x0026
@@ -7313,6 +7318,22 @@ static uint64_t gfx_v10_0_get_gpu_clock_counter(struct amdgpu_device *adev)
uint64_t clock, clock_lo, clock_hi, hi_check;
switch (adev->ip_versions[GC_HWIP][0]) {
+ case IP_VERSION(10, 1, 3):
+ case IP_VERSION(10, 1, 4):
+ preempt_disable();
+ clock_hi = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Cyan_Skillfish);
+ clock_lo = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_LOWER_Cyan_Skillfish);
+ hi_check = RREG32_SOC15_NO_KIQ(SMUIO, 0, mmGOLDEN_TSC_COUNT_UPPER_Cyan_Skillfish);
+ /* 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_Cyan_Skillfish);
+ clock_hi = hi_check;
+ }
+ preempt_enable();
+ clock = clock_lo | (clock_hi << 32ULL);
+ break;
case IP_VERSION(10, 3, 1):
case IP_VERSION(10, 3, 3):
case IP_VERSION(10, 3, 7):
--
2.25.1
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