From: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
drivers/gpu/drm/radeon/radeon.h | 1 +
drivers/gpu/drm/radeon/radeon_pm.c | 4 ++++
drivers/gpu/drm/radeon/si.c | 19 +++++++++++++++++++
drivers/gpu/drm/radeon/sid.h | 8 ++++++++
4 files changed, 32 insertions(+), 0 deletions(-)
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index aaad93d..c75ccc7 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -241,6 +241,7 @@ extern int rv6xx_get_temp(struct radeon_device *rdev);
extern int rv770_get_temp(struct radeon_device *rdev);
extern int evergreen_get_temp(struct radeon_device *rdev);
extern int sumo_get_temp(struct radeon_device *rdev);
+extern int si_get_temp(struct radeon_device *rdev);
extern void evergreen_tiling_fields(unsigned tiling_flags, unsigned *bankw,
unsigned *bankh, unsigned *mtaspect,
unsigned *tile_split);
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 3575129..a6dbefc 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -474,6 +474,9 @@ static ssize_t radeon_hwmon_show_temp(struct device *dev,
case THERMAL_TYPE_SUMO:
temp = sumo_get_temp(rdev);
break;
+ case THERMAL_TYPE_SI:
+ temp = si_get_temp(rdev);
+ break;
default:
temp = 0;
break;
@@ -514,6 +517,7 @@ static int radeon_hwmon_init(struct radeon_device *rdev)
case THERMAL_TYPE_EVERGREEN:
case THERMAL_TYPE_NI:
case THERMAL_TYPE_SUMO:
+ case THERMAL_TYPE_SI:
rdev->pm.int_hwmon_dev = hwmon_device_register(rdev->dev);
if (IS_ERR(rdev->pm.int_hwmon_dev)) {
err = PTR_ERR(rdev->pm.int_hwmon_dev);
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 39c64df..3e91429 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -28,6 +28,25 @@
#include "sid.h"
#include "atom.h"
+/* get temperature in millidegrees */
+int si_get_temp(struct radeon_device *rdev)
+{
+ u32 temp;
+ int actual_temp = 0;
+
+ temp = (RREG32(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;
+}
+
/* watermark setup */
static u32 dce6_line_buffer_adjust(struct radeon_device *rdev,
struct radeon_crtc *radeon_crtc,
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 962cc17..f565a8f 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -24,6 +24,14 @@
#ifndef SI_H
#define SI_H
+#define CG_MULT_THERMAL_STATUS 0x714
+#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 MC_SHARED_CHMAP 0x2004
#define NOOFCHAN_SHIFT 12
#define NOOFCHAN_MASK 0x0000f000
--
1.7.7.5
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