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-rw-r--r--drivers/gpu/drm/radeon/radeon_asic.c1
-rw-r--r--drivers/gpu/drm/radeon/radeon_asic.h2
-rw-r--r--drivers/gpu/drm/radeon/rs780_dpm.c25
-rw-r--r--drivers/gpu/drm/radeon/rs780d.h3
4 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index fea997e247ba..78bec1a58ed1 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1270,6 +1270,7 @@ static struct radeon_asic rs780_asic = {
.get_sclk = &rs780_dpm_get_sclk,
.get_mclk = &rs780_dpm_get_mclk,
.print_power_state = &rs780_dpm_print_power_state,
+ .debugfs_print_current_performance_level = &rs780_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &rs600_pre_page_flip,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index b04b5789f4a8..ca1895709908 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -433,6 +433,8 @@ u32 rs780_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low);
void rs780_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
+void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m);
/* uvd */
int r600_uvd_init(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/rs780_dpm.c b/drivers/gpu/drm/radeon/rs780_dpm.c
index bef832a62fee..d1a1ce73bd45 100644
--- a/drivers/gpu/drm/radeon/rs780_dpm.c
+++ b/drivers/gpu/drm/radeon/rs780_dpm.c
@@ -28,6 +28,7 @@
#include "r600_dpm.h"
#include "rs780_dpm.h"
#include "atom.h"
+#include <linux/seq_file.h>
static struct igp_ps *rs780_get_ps(struct radeon_ps *rps)
{
@@ -961,3 +962,27 @@ u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low)
return pi->bootup_uma_clk;
}
+
+void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m)
+{
+ struct radeon_ps *rps = rdev->pm.dpm.current_ps;
+ struct igp_ps *ps = rs780_get_ps(rps);
+ u32 current_fb_div = RREG32(FVTHROT_STATUS_REG0) & CURRENT_FEEDBACK_DIV_MASK;
+ u32 func_cntl = RREG32(CG_SPLL_FUNC_CNTL);
+ u32 ref_div = ((func_cntl & SPLL_REF_DIV_MASK) >> SPLL_REF_DIV_SHIFT) + 1;
+ u32 post_div = ((func_cntl & SPLL_SW_HILEN_MASK) >> SPLL_SW_HILEN_SHIFT) + 1 +
+ ((func_cntl & SPLL_SW_LOLEN_MASK) >> SPLL_SW_LOLEN_SHIFT) + 1;
+ u32 sclk = (rdev->clock.spll.reference_freq * current_fb_div) /
+ (post_div * ref_div);
+
+ seq_printf(m, "uvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
+
+ /* guess based on the current sclk */
+ if (sclk < (ps->sclk_low + 500))
+ seq_printf(m, "power level 0 sclk: %u vddc_index: %d\n",
+ ps->sclk_low, ps->min_voltage);
+ else
+ seq_printf(m, "power level 1 sclk: %u vddc_index: %d\n",
+ ps->sclk_high, ps->max_voltage);
+}
diff --git a/drivers/gpu/drm/radeon/rs780d.h b/drivers/gpu/drm/radeon/rs780d.h
index b1142ed1c628..cfbe9a43d97b 100644
--- a/drivers/gpu/drm/radeon/rs780d.h
+++ b/drivers/gpu/drm/radeon/rs780d.h
@@ -28,6 +28,7 @@
# define SPLL_SLEEP (1 << 1)
# define SPLL_REF_DIV(x) ((x) << 2)
# define SPLL_REF_DIV_MASK (7 << 2)
+# define SPLL_REF_DIV_SHIFT 2
# define SPLL_FB_DIV(x) ((x) << 5)
# define SPLL_FB_DIV_MASK (0xff << 2)
# define SPLL_FB_DIV_SHIFT 2
@@ -36,8 +37,10 @@
# define SPLL_PULSENUM_MASK (3 << 14)
# define SPLL_SW_HILEN(x) ((x) << 16)
# define SPLL_SW_HILEN_MASK (0xf << 16)
+# define SPLL_SW_HILEN_SHIFT 16
# define SPLL_SW_LOLEN(x) ((x) << 20)
# define SPLL_SW_LOLEN_MASK (0xf << 20)
+# define SPLL_SW_LOLEN_SHIFT 20
# define SPLL_DIVEN (1 << 24)
# define SPLL_BYPASS_EN (1 << 25)
# define SPLL_CHG_STATUS (1 << 29)