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drm/radeon/dpm: add debugfs support for rv6xx

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This allows you to look at the current DPM state via
debugfs.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2013-06-28 14:20:53 -04:00
parent 1316b79256
commit 242916a5ee
3 changed files with 28 additions and 0 deletions
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1
drivers/gpu/drm/radeon/radeon_asic.c
View file

@ -1160,6 +1160,7 @@ static struct radeon_asic rv6xx_asic = {
.get_sclk = &rv6xx_dpm_get_sclk,
.get_mclk = &rv6xx_dpm_get_mclk,
.print_power_state = &rv6xx_dpm_print_power_state,
.debugfs_print_current_performance_level = &rv6xx_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &rs600_pre_page_flip,

2
drivers/gpu/drm/radeon/radeon_asic.h
View file

@ -416,6 +416,8 @@ u32 rv6xx_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 rv6xx_dpm_get_mclk(struct radeon_device *rdev, bool low);
void rv6xx_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
void rv6xx_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
/* rs780 dpm */
int rs780_dpm_init(struct radeon_device *rdev);
int rs780_dpm_enable(struct radeon_device *rdev);

25
drivers/gpu/drm/radeon/rv6xx_dpm.c
View file

@ -2027,6 +2027,31 @@ void rv6xx_dpm_print_power_state(struct radeon_device *rdev,
r600_dpm_print_ps_status(rdev, rps);
}
void rv6xx_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m)
{
struct radeon_ps *rps = rdev->pm.dpm.current_ps;
struct rv6xx_ps *ps = rv6xx_get_ps(rps);
struct rv6xx_pl *pl;
u32 current_index =
(RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>
CURRENT_PROFILE_INDEX_SHIFT;
if (current_index > 2) {
seq_printf(m, "invalid dpm profile %d\n", current_index);
} else {
if (current_index == 0)
pl = &ps->low;
else if (current_index == 1)
pl = &ps->medium;
else /* current_index == 2 */
pl = &ps->high;
seq_printf(m, "uvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
seq_printf(m, "power level %d sclk: %u mclk: %u vddc: %u\n",
current_index, pl->sclk, pl->mclk, pl->vddc);
}
}
void rv6xx_dpm_fini(struct radeon_device *rdev)
{
int i;