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drm/radeon/dpm: add debugfs support for cayman

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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 17:49:02 -04:00
parent 490ab9314b
commit bdf0c4f07d
4 changed files with 27 additions and 0 deletions
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20
drivers/gpu/drm/radeon/ni_dpm.c
View File

@ -4287,6 +4287,26 @@ void ni_dpm_print_power_state(struct radeon_device *rdev,
r600_dpm_print_ps_status(rdev, rps);
}
void ni_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\n",
current_index, pl->sclk, pl->mclk, pl->vddc, pl->vddci);
}
}
u32 ni_dpm_get_sclk(struct radeon_device *rdev, bool low)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);

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

@ -618,6 +618,10 @@
# define MRDCKD0_BYPASS (1 << 30)
# define MRDCKD1_BYPASS (1 << 31)
#define TARGET_AND_CURRENT_PROFILE_INDEX 0x66c
# define CURRENT_STATE_INDEX_MASK (0xf << 4)
# define CURRENT_STATE_INDEX_SHIFT 4
#define CG_AT 0x6d4
# define CG_R(x) ((x) << 0)
# define CG_R_MASK (0xffff << 0)

1
drivers/gpu/drm/radeon/radeon_asic.c
View File

@ -1936,6 +1936,7 @@ static struct radeon_asic cayman_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 = &ni_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,

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

@ -613,6 +613,8 @@ u32 ni_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 ni_dpm_get_mclk(struct radeon_device *rdev, bool low);
void ni_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
void ni_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
int trinity_dpm_init(struct radeon_device *rdev);
int trinity_dpm_enable(struct radeon_device *rdev);
void trinity_dpm_disable(struct radeon_device *rdev);