This allows you to look at the current DPM state via
debugfs.
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/cikd.h | 4 ++++
drivers/gpu/drm/radeon/kv_dpm.c | 23 +++++++++++++++++++++++
drivers/gpu/drm/radeon/radeon_asic.c | 1 +
drivers/gpu/drm/radeon/radeon_asic.h | 2 ++
4 files changed, 30 insertions(+)
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index baada55..0977cf8 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -134,6 +134,10 @@
# define DISP_GAP_MCHG(x) ((x) << 24)
# define DISP_GAP_MCHG_MASK (3 << 24)
+#define SMU_VOLTAGE_STATUS 0xC0200094
+# define SMU_VOLTAGE_CURRENT_LEVEL_MASK (0xff << 1)
+# define SMU_VOLTAGE_CURRENT_LEVEL_SHIFT 1
+
#define TARGET_AND_CURRENT_PROFILE_INDEX_1 0xC02000F0
# define CURR_PCIE_INDEX_MASK (0xf << 24)
# define CURR_PCIE_INDEX_SHIFT 24
diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c
index 2e40163..d584ee4 100644
--- a/drivers/gpu/drm/radeon/kv_dpm.c
+++ b/drivers/gpu/drm/radeon/kv_dpm.c
@@ -26,6 +26,7 @@
#include "cikd.h"
#include "r600_dpm.h"
#include "kv_dpm.h"
+#include <linux/seq_file.h>
#define KV_MAX_DEEPSLEEP_DIVIDER_ID 5
#define KV_MINIMUM_ENGINE_CLOCK 800
@@ -2481,6 +2482,28 @@ int kv_dpm_init(struct radeon_device *rdev)
return 0;
}
+void kv_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m)
+{
+ struct kv_power_info *pi = kv_get_pi(rdev);
+ u32 current_index =
+ (RREG32_SMC(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_SCLK_INDEX_MASK) >>
+ CURR_SCLK_INDEX_SHIFT;
+ u32 sclk, tmp;
+ u16 vddc;
+
+ if (current_index >= SMU__NUM_SCLK_DPM_STATE) {
+ seq_printf(m, "invalid dpm profile %d\n", current_index);
+ } else {
+ sclk = be32_to_cpu(pi->graphics_level[current_index].SclkFrequency);
+ tmp = (RREG32_SMC(SMU_VOLTAGE_STATUS) & SMU_VOLTAGE_CURRENT_LEVEL_MASK) >>
+ SMU_VOLTAGE_CURRENT_LEVEL_SHIFT;
+ vddc = kv_convert_8bit_index_to_voltage(rdev, (u16)tmp);
+ seq_printf(m, "power level %d sclk: %u vddc: %u\n",
+ current_index, sclk, vddc);
+ }
+}
+
void kv_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *rps)
{
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 2d7bdda..b25172b 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2640,6 +2640,7 @@ static struct radeon_asic kv_asic = {
.get_sclk = &kv_dpm_get_sclk,
.get_mclk = &kv_dpm_get_mclk,
.print_power_state = &kv_dpm_print_power_state,
+ .debugfs_print_current_performance_level = &kv_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index b5f4e43..80ad5d8 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -782,5 +782,7 @@ u32 kv_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 kv_dpm_get_mclk(struct radeon_device *rdev, bool low);
void kv_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
+void kv_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m);
#endif
--
1.8.3.1
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