Support manual LCLK DPM level switch on Vega20.
Change-Id: I4c6ea6356a90ef6d99f39f7a5cd5cdcb89846d32
Signed-off-by: Evan Quan <evan.q...@amd.com>
Acked-by: Alex Deucher <alexander.deuc...@amd.com>
Reviewed-by: Rex Zhu <rex....@amd.com>
Reviewed-by: Feifei Xu <feifei...@amd.com>
---
.../drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 43 +++++++++++++++++++
1 file changed, 43 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
index 15788c6486b1..fa57c678e2cf 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
@@ -49,6 +49,10 @@
#include "soc15_common.h"
#include "smuio/smuio_9_0_offset.h"
#include "smuio/smuio_9_0_sh_mask.h"
+#include "nbio/nbio_7_4_sh_mask.h"
+
+#define smnPCIE_LC_SPEED_CNTL 0x11140290
+#define smnPCIE_LC_LINK_WIDTH_CNTL 0x11140288
static void vega20_set_default_registry_data(struct pp_hwmgr *hwmgr)
{
@@ -2272,6 +2276,18 @@ static int vega20_force_clock_level(struct pp_hwmgr
*hwmgr,
break;
case PP_PCIE:
+ soft_min_level = mask ? (ffs(mask) - 1) : 0;
+ soft_max_level = mask ? (fls(mask) - 1) : 0;
+ if (soft_min_level >= NUM_LINK_LEVELS ||
+ soft_max_level >= NUM_LINK_LEVELS)
+ return -EINVAL;
+
+ ret = smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetMinLinkDpmByIndex, soft_min_level);
+ PP_ASSERT_WITH_CODE(!ret,
+ "Failed to set min link dpm level!",
+ return ret);
+
break;
default:
@@ -2748,9 +2764,14 @@ static int vega20_print_clock_levels(struct pp_hwmgr
*hwmgr,
data->od8_settings.od8_settings_array;
OverDriveTable_t *od_table =
&(data->smc_state_table.overdrive_table);
+ struct phm_ppt_v3_information *pptable_information =
+ (struct phm_ppt_v3_information *)hwmgr->pptable;
+ PPTable_t *pptable = (PPTable_t *)pptable_information->smc_pptable;
+ struct amdgpu_device *adev = hwmgr->adev;
struct pp_clock_levels_with_latency clocks;
int i, now, size = 0;
int ret = 0;
+ uint32_t gen_speed, lane_width;
switch (type) {
case PP_SCLK:
@@ -2788,6 +2809,28 @@ static int vega20_print_clock_levels(struct pp_hwmgr
*hwmgr,
break;
case PP_PCIE:
+ gen_speed = (RREG32_PCIE(smnPCIE_LC_SPEED_CNTL) &
+
PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE_MASK)
+ >>
PSWUSP0_PCIE_LC_SPEED_CNTL__LC_CURRENT_DATA_RATE__SHIFT;
+ lane_width = (RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL) &
+ PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK)
+ >> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT;
+ for (i = 0; i < NUM_LINK_LEVELS; i++)
+ size += sprintf(buf + size, "%d: %s %s %dMhz %s\n", i,
+ (pptable->PcieGenSpeed[i] == 0) ?
"2.5GT/s," :
+ (pptable->PcieGenSpeed[i] == 1) ?
"5.0GT/s," :
+ (pptable->PcieGenSpeed[i] == 2) ?
"8.0GT/s," :
+ (pptable->PcieGenSpeed[i] == 3) ?
"16.0GT/s," : "",
+ (pptable->PcieLaneCount[i] == 1) ? "x1"
:
+ (pptable->PcieLaneCount[i] == 2) ? "x2"
:
+ (pptable->PcieLaneCount[i] == 3) ? "x4"
:
+ (pptable->PcieLaneCount[i] == 4) ? "x8"
:
+ (pptable->PcieLaneCount[i] == 5) ?
"x12" :
+ (pptable->PcieLaneCount[i] == 6) ?
"x16" : "",
+ pptable->LclkFreq[i],
+ (gen_speed == pptable->PcieGenSpeed[i])
&&
+ (lane_width ==
pptable->PcieLaneCount[i]) ?
+ "*" : "");
break;
case OD_SCLK:
--
2.20.1
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