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drm/radeon/btc: implement get_current_sclk/mclk 

Will be used for exposing current clocks via INFO ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2014-09-30 10:39:30 -04:00
parent 296deb7167
commit 99550ee9e8
3 changed files with 50 additions and 0 deletions
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46
drivers/gpu/drm/radeon/btc_dpm.c
View File

@ -2761,6 +2761,52 @@ void btc_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
}
}
u32 btc_dpm_get_current_sclk(struct radeon_device *rdev)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
struct radeon_ps *rps = &eg_pi->current_rps;
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) {
return 0;
} else {
if (current_index == 0)
pl = &ps->low;
else if (current_index == 1)
pl = &ps->medium;
else /* current_index == 2 */
pl = &ps->high;
return pl->sclk;
}
}
u32 btc_dpm_get_current_mclk(struct radeon_device *rdev)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
struct radeon_ps *rps = &eg_pi->current_rps;
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) {
return 0;
} else {
if (current_index == 0)
pl = &ps->low;
else if (current_index == 1)
pl = &ps->medium;
else /* current_index == 2 */
pl = &ps->high;
return pl->mclk;
}
}
u32 btc_dpm_get_sclk(struct radeon_device *rdev, bool low)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);

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

@ -1580,6 +1580,8 @@ static struct radeon_asic btc_asic = {
.debugfs_print_current_performance_level = &btc_dpm_debugfs_print_current_performance_level,
.force_performance_level = &rv770_dpm_force_performance_level,
.vblank_too_short = &btc_dpm_vblank_too_short,
.get_current_sclk = &btc_dpm_get_current_sclk,
.get_current_mclk = &btc_dpm_get_current_mclk,
},
.pflip = {
.page_flip = &evergreen_page_flip,

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

@ -569,6 +569,8 @@ u32 btc_dpm_get_mclk(struct radeon_device *rdev, bool low);
bool btc_dpm_vblank_too_short(struct radeon_device *rdev);
void btc_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
struct seq_file *m);
u32 btc_dpm_get_current_sclk(struct radeon_device *rdev);
u32 btc_dpm_get_current_mclk(struct radeon_device *rdev);
int sumo_dpm_init(struct radeon_device *rdev);
int sumo_dpm_enable(struct radeon_device *rdev);
int sumo_dpm_late_enable(struct radeon_device *rdev);