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drm/radeon/tn: 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 11:01:59 -04:00
parent 2f8e1eb7d6
commit 7ce9cdaec3
3 changed files with 29 additions and 0 deletions
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2
drivers/gpu/drm/radeon/radeon_asic.c
View File

@ -1833,6 +1833,8 @@ static struct radeon_asic trinity_asic = {
.debugfs_print_current_performance_level = &trinity_dpm_debugfs_print_current_performance_level,
.force_performance_level = &trinity_dpm_force_performance_level,
.enable_bapm = &trinity_dpm_enable_bapm,
.get_current_sclk = &trinity_dpm_get_current_sclk,
.get_current_mclk = &trinity_dpm_get_current_mclk,
},
.pflip = {
.page_flip = &evergreen_page_flip,

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

@ -686,6 +686,8 @@ void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *r
int trinity_dpm_force_performance_level(struct radeon_device *rdev,
enum radeon_dpm_forced_level level);
void trinity_dpm_enable_bapm(struct radeon_device *rdev, bool enable);
u32 trinity_dpm_get_current_sclk(struct radeon_device *rdev);
u32 trinity_dpm_get_current_mclk(struct radeon_device *rdev);
/* DCE6 - SI */
void dce6_bandwidth_update(struct radeon_device *rdev);

25
drivers/gpu/drm/radeon/trinity_dpm.c
View File

@ -1964,6 +1964,31 @@ void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *r
}
}
u32 trinity_dpm_get_current_sclk(struct radeon_device *rdev)
{
struct trinity_power_info *pi = trinity_get_pi(rdev);
struct radeon_ps *rps = &pi->current_rps;
struct trinity_ps *ps = trinity_get_ps(rps);
struct trinity_pl *pl;
u32 current_index =
(RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_STATE_MASK) >>
CURRENT_STATE_SHIFT;
if (current_index >= ps->num_levels) {
return 0;
} else {
pl = &ps->levels[current_index];
return pl->sclk;
}
}
u32 trinity_dpm_get_current_mclk(struct radeon_device *rdev)
{
struct trinity_power_info *pi = trinity_get_pi(rdev);
return pi->sys_info.bootup_uma_clk;
}
void trinity_dpm_fini(struct radeon_device *rdev)
{
int i;