From 286d9cc67a87863ba510b22d3f32cbeed9864b85 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 21 Jun 2013 15:50:47 -0400 Subject: [PATCH] drm/radeon: add get_temperature() callbacks for CIK (v2) This added support for the on-chip thermal sensors on CIK asics. v2: fix register offset. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/cik.c | 37 ++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/cikd.h | 8 ++++++ drivers/gpu/drm/radeon/radeon_asic.c | 2 ++ drivers/gpu/drm/radeon/radeon_asic.h | 2 ++ drivers/gpu/drm/radeon/radeon_pm.c | 2 ++ 5 files changed, 51 insertions(+) diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c index 727c296662f1..d0804f79efed 100644 --- a/drivers/gpu/drm/radeon/cik.c +++ b/drivers/gpu/drm/radeon/cik.c @@ -69,6 +69,43 @@ static void cik_program_aspm(struct radeon_device *rdev); static void cik_init_pg(struct radeon_device *rdev); static void cik_init_cg(struct radeon_device *rdev); +/* get temperature in millidegrees */ +int ci_get_temp(struct radeon_device *rdev) +{ + u32 temp; + int actual_temp = 0; + + temp = (RREG32_SMC(CG_MULT_THERMAL_STATUS) & CTF_TEMP_MASK) >> + CTF_TEMP_SHIFT; + + if (temp & 0x200) + actual_temp = 255; + else + actual_temp = temp & 0x1ff; + + actual_temp = actual_temp * 1000; + + return actual_temp; +} + +/* get temperature in millidegrees */ +int kv_get_temp(struct radeon_device *rdev) +{ + u32 temp; + int actual_temp = 0; + + temp = RREG32_SMC(0xC0300E0C); + + if (temp) + actual_temp = (temp / 8) - 49; + else + actual_temp = 0; + + actual_temp = actual_temp * 1000; + + return actual_temp; +} + /* * Indirect registers accessor */ diff --git a/drivers/gpu/drm/radeon/cikd.h b/drivers/gpu/drm/radeon/cikd.h index 116b3131a683..65886caaf756 100644 --- a/drivers/gpu/drm/radeon/cikd.h +++ b/drivers/gpu/drm/radeon/cikd.h @@ -32,6 +32,14 @@ #define GENERAL_PWRMGT 0xC0200000 # define GPU_COUNTER_CLK (1 << 15) +#define CG_MULT_THERMAL_STATUS 0xC0300014 +#define ASIC_MAX_TEMP(x) ((x) << 0) +#define ASIC_MAX_TEMP_MASK 0x000001ff +#define ASIC_MAX_TEMP_SHIFT 0 +#define CTF_TEMP(x) ((x) << 9) +#define CTF_TEMP_MASK 0x0003fe00 +#define CTF_TEMP_SHIFT 9 + #define MPLL_BYPASSCLK_SEL 0xC050019C # define MPLL_CLKOUT_SEL(x) ((x) << 8) # define MPLL_CLKOUT_SEL_MASK 0xFF00 diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index 880551b6df61..3a55540fe280 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -2452,6 +2452,7 @@ static struct radeon_asic ci_asic = { .set_pcie_lanes = NULL, .set_clock_gating = NULL, .set_uvd_clocks = &cik_set_uvd_clocks, + .get_temperature = &ci_get_temp, }, .pflip = { .pre_page_flip = &evergreen_pre_page_flip, @@ -2607,6 +2608,7 @@ static struct radeon_asic kv_asic = { .set_pcie_lanes = NULL, .set_clock_gating = NULL, .set_uvd_clocks = &cik_set_uvd_clocks, + .get_temperature = &kv_get_temp, }, .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 3cf7d89c1bd8..d5c6c5b10edf 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -747,5 +747,7 @@ u32 cik_compute_ring_get_wptr(struct radeon_device *rdev, struct radeon_ring *ring); void cik_compute_ring_set_wptr(struct radeon_device *rdev, struct radeon_ring *ring); +int ci_get_temp(struct radeon_device *rdev); +int kv_get_temp(struct radeon_device *rdev); #endif diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 79a03de4ac0a..1408014dce8f 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -569,6 +569,8 @@ static int radeon_hwmon_init(struct radeon_device *rdev) case THERMAL_TYPE_NI: case THERMAL_TYPE_SUMO: case THERMAL_TYPE_SI: + case THERMAL_TYPE_CI: + case THERMAL_TYPE_KV: if (rdev->asic->pm.get_temperature == NULL) return err; rdev->pm.int_hwmon_dev = hwmon_device_register(rdev->dev); -- 2.20.1