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drm/radeon/dpm: add debugfs support for 7xx/evergreen/btc

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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 10:06:26 -04:00
parent 242916a5ee
commit bd210d11cd
4 changed files with 39 additions and 0 deletions
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3
drivers/gpu/drm/radeon/radeon_asic.c
View File

@ -1392,6 +1392,7 @@ static struct radeon_asic rv770_asic = {
.get_sclk = &rv770_dpm_get_sclk,
.get_mclk = &rv770_dpm_get_mclk,
.print_power_state = &rv770_dpm_print_power_state,
.debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &rs600_pre_page_flip,
@ -1514,6 +1515,7 @@ static struct radeon_asic evergreen_asic = {
.get_sclk = &rv770_dpm_get_sclk,
.get_mclk = &rv770_dpm_get_mclk,
.print_power_state = &rv770_dpm_print_power_state,
.debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,
@ -1758,6 +1760,7 @@ static struct radeon_asic btc_asic = {
.get_sclk = &btc_dpm_get_sclk,
.get_mclk = &btc_dpm_get_mclk,
.print_power_state = &rv770_dpm_print_power_state,
.debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level,
},
.pflip = {
.pre_page_flip = &evergreen_pre_page_flip,

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

@ -476,6 +476,8 @@ u32 rv770_dpm_get_sclk(struct radeon_device *rdev, bool low);
u32 rv770_dpm_get_mclk(struct radeon_device *rdev, bool low);
void rv770_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
void rv770_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
/*
* evergreen

30
drivers/gpu/drm/radeon/rv770_dpm.c
View File

@ -2430,6 +2430,36 @@ void rv770_dpm_print_power_state(struct radeon_device *rdev,
r600_dpm_print_ps_status(rdev, rps);
}
void rv770_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m)
{
struct radeon_ps *rps = rdev->pm.dpm.current_ps;
struct rv7xx_ps *ps = rv770_get_ps(rps);
struct rv7xx_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);
if (rdev->family >= CHIP_CEDAR) {
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);
} else {
seq_printf(m, "power level %d sclk: %u mclk: %u vddc: %u\n",
current_index, pl->sclk, pl->mclk, pl->vddc);
}
}
}
void rv770_dpm_fini(struct radeon_device *rdev)
{
int i;

4
drivers/gpu/drm/radeon/rv770d.h
View File

@ -207,6 +207,10 @@
# define MUX_TCLK_TO_XCLK (1 << 8)
# define XTALIN_DIVIDE (1 << 9)
#define TARGET_AND_CURRENT_PROFILE_INDEX 0x66c
# define CURRENT_PROFILE_INDEX_MASK (0xf << 4)
# define CURRENT_PROFILE_INDEX_SHIFT 4
#define S0_VID_LOWER_SMIO_CNTL 0x678
#define S1_VID_LOWER_SMIO_CNTL 0x67c
#define S2_VID_LOWER_SMIO_CNTL 0x680