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drm/radeon/kms: add support for internal thermal sensor on SI

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Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alex Deucher 2012-03-20 17:18:10 -04:00 committed by Dave Airlie
parent 14607d0836
commit 1bd47d2e16
4 changed files with 32 additions and 0 deletions
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1
drivers/gpu/drm/radeon/radeon.h
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@ -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);

4
drivers/gpu/drm/radeon/radeon_pm.c
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@ -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);

19
drivers/gpu/drm/radeon/si.c
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@ -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,

8
drivers/gpu/drm/radeon/sid.h
View File

@ -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