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drm/radeon/dpm: add debugfs support for SI

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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 18:02:19 -04:00
parent bdf0c4f07d
commit 7982128c3d
4 changed files with 26 additions and 0 deletions
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1
drivers/gpu/drm/radeon/radeon_asic.c
View File

@ -2282,6 +2282,7 @@ static struct radeon_asic si_asic = {
.get_sclk = &ni_dpm_get_sclk,
.get_mclk = &ni_dpm_get_mclk,
.print_power_state = &ni_dpm_print_power_state,
.debugfs_print_current_performance_level = &si_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,

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

@ -677,6 +677,8 @@ int si_dpm_set_power_state(struct radeon_device *rdev);
void si_dpm_post_set_power_state(struct radeon_device *rdev);
void si_dpm_fini(struct radeon_device *rdev);
void si_dpm_display_configuration_changed(struct radeon_device *rdev);
void si_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
/* DCE8 - CIK */
void dce8_bandwidth_update(struct radeon_device *rdev);

19
drivers/gpu/drm/radeon/si_dpm.c
View File

@ -6385,3 +6385,22 @@ void si_dpm_fini(struct radeon_device *rdev)
r600_free_extended_power_table(rdev);
}
void si_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m)
{
struct radeon_ps *rps = rdev->pm.dpm.current_ps;
struct ni_ps *ps = ni_get_ps(rps);
struct rv7xx_pl *pl;
u32 current_index =
(RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_STATE_INDEX_MASK) >>
CURRENT_STATE_INDEX_SHIFT;
if (current_index >= ps->performance_level_count) {
seq_printf(m, "invalid dpm profile %d\n", current_index);
} else {
pl = &ps->performance_levels[current_index];
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 vddci: %u pcie gen: %u\n",
current_index, pl->sclk, pl->mclk, pl->vddc, pl->vddci, pl->pcie_gen + 1);
}
}

4
drivers/gpu/drm/radeon/sid.h
View File

@ -220,6 +220,10 @@
# define GFX_CLK_OFF_ACPI_D3 (1 << 13)
# define DYN_LIGHT_SLEEP_EN (1 << 14)
#define TARGET_AND_CURRENT_PROFILE_INDEX 0x798
# define CURRENT_STATE_INDEX_MASK (0xf << 4)
# define CURRENT_STATE_INDEX_SHIFT 4
#define CG_FTV 0x7bc
#define CG_FFCT_0 0x7c0