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 <alexander.deucher@amd.com>
diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 727c296..d0804f7 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -69,6 +69,43 @@
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
*/