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| author |   Alex Deucher <alexander.deucher@amd.com> | 2013-07-18 16:39:53 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-08-30 16:30:32 -0400 |
| commit | ae3e40e8712414321ef2b61e8bb26a5d9701643b (patch) | |
| tree | 1d9452470a10c08b758b144bf27833958b920408 /drivers/gpu | |
| parent | drm/radeon/dpm: implement vblank_too_short callback for CI (diff) | |
| download | linux-dev-ae3e40e8712414321ef2b61e8bb26a5d9701643b.tar.xz linux-dev-ae3e40e8712414321ef2b61e8bb26a5d9701643b.zip | |
drm/radeon/dpm: add debugfs support for KB/KV
This allows you to look at the current DPM state via
debugfs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/radeon/cikd.h | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/kv_dpm.c | 23 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_asic.h | 2 |
4 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h index 9716ffcded43..259b81c7cdd8 100644 --- a/drivers/gpu/drm/radeon/cikd.h +++ b/drivers/gpu/drm/radeon/cikd.h @@ -134,6 +134,10 @@ # define DISP_GAP_MCHG(x) ((x) << 24) # define DISP_GAP_MCHG_MASK (3 << 24) +#define SMU_VOLTAGE_STATUS 0xC0200094 +# define SMU_VOLTAGE_CURRENT_LEVEL_MASK (0xff << 1) +# define SMU_VOLTAGE_CURRENT_LEVEL_SHIFT 1 + #define TARGET_AND_CURRENT_PROFILE_INDEX_1 0xC02000F0 # define CURR_PCIE_INDEX_MASK (0xf << 24) # define CURR_PCIE_INDEX_SHIFT 24 diff --git a/drivers/gpu/drm/radeon/kv_dpm.c b/drivers/gpu/drm/radeon/kv_dpm.c index 2e4016356dab..d584ee4a09ad 100644 --- a/drivers/gpu/drm/radeon/kv_dpm.c +++ b/drivers/gpu/drm/radeon/kv_dpm.c @@ -26,6 +26,7 @@ #include "cikd.h" #include "r600_dpm.h" #include "kv_dpm.h" +#include <linux/seq_file.h> #define KV_MAX_DEEPSLEEP_DIVIDER_ID 5 #define KV_MINIMUM_ENGINE_CLOCK 800 @@ -2481,6 +2482,28 @@ int kv_dpm_init(struct radeon_device *rdev) return 0; } +void kv_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, + struct seq_file *m) +{ + struct kv_power_info *pi = kv_get_pi(rdev); + u32 current_index = + (RREG32_SMC(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_SCLK_INDEX_MASK) >> + CURR_SCLK_INDEX_SHIFT; + u32 sclk, tmp; + u16 vddc; + + if (current_index >= SMU__NUM_SCLK_DPM_STATE) { + seq_printf(m, "invalid dpm profile %d\n", current_index); + } else { + sclk = be32_to_cpu(pi->graphics_level[current_index].SclkFrequency); + tmp = (RREG32_SMC(SMU_VOLTAGE_STATUS) & SMU_VOLTAGE_CURRENT_LEVEL_MASK) >> + SMU_VOLTAGE_CURRENT_LEVEL_SHIFT; + vddc = kv_convert_8bit_index_to_voltage(rdev, (u16)tmp); + seq_printf(m, "power level %d sclk: %u vddc: %u\n", + current_index, sclk, vddc); + } +} + void kv_dpm_print_power_state(struct radeon_device *rdev, struct radeon_ps *rps) { diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 2d7bdda90bba..b25172bc1ef2 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2640,6 +2640,7 @@ static struct radeon_asic kv_asic = { .get_sclk = &kv_dpm_get_sclk, .get_mclk = &kv_dpm_get_mclk, .print_power_state = &kv_dpm_print_power_state, + .debugfs_print_current_performance_level = &kv_dpm_debugfs_print_current_performance_level, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index b5f4e431c493..80ad5d89e4bb 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -782,5 +782,7 @@ u32 kv_dpm_get_sclk(struct radeon_device *rdev, bool low); u32 kv_dpm_get_mclk(struct radeon_device *rdev, bool low); void kv_dpm_print_power_state(struct radeon_device *rdev, struct radeon_ps *ps); +void kv_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev, + struct seq_file *m); #endif |