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-rw-r--r--drivers/gpu/drm/i915/intel_pm.c20
1 files changed, 9 insertions, 11 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 39f3238bf1c3..dd3a1216eab0 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3326,7 +3326,7 @@ static void gen6_enable_rps(struct drm_device *dev)
3326 struct intel_ring_buffer *ring; 3326 struct intel_ring_buffer *ring;
3327 u32 rp_state_cap, hw_max, hw_min; 3327 u32 rp_state_cap, hw_max, hw_min;
3328 u32 gt_perf_status; 3328 u32 gt_perf_status;
3329 u32 rc6vids, pcu_mbox, rc6_mask = 0; 3329 u32 rc6vids, pcu_mbox = 0, rc6_mask = 0;
3330 u32 gtfifodbg; 3330 u32 gtfifodbg;
3331 int rc6_mode; 3331 int rc6_mode;
3332 int i, ret; 3332 int i, ret;
@@ -3414,17 +3414,15 @@ static void gen6_enable_rps(struct drm_device *dev)
3414 I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10); 3414 I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
3415 3415
3416 ret = sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_MIN_FREQ_TABLE, 0); 3416 ret = sandybridge_pcode_write(dev_priv, GEN6_PCODE_WRITE_MIN_FREQ_TABLE, 0);
3417 if (!ret) { 3417 if (ret)
3418 pcu_mbox = 0;
3419 ret = sandybridge_pcode_read(dev_priv, GEN6_READ_OC_PARAMS, &pcu_mbox);
3420 if (!ret && (pcu_mbox & (1<<31))) { /* OC supported */
3421 DRM_DEBUG_DRIVER("Overclocking supported. Max: %dMHz, Overclock max: %dMHz\n",
3422 (dev_priv->rps.max_delay & 0xff) * 50,
3423 (pcu_mbox & 0xff) * 50);
3424 dev_priv->rps.hw_max = pcu_mbox & 0xff;
3425 }
3426 } else {
3427 DRM_DEBUG_DRIVER("Failed to set the min frequency\n"); 3418 DRM_DEBUG_DRIVER("Failed to set the min frequency\n");
3419
3420 ret = sandybridge_pcode_read(dev_priv, GEN6_READ_OC_PARAMS, &pcu_mbox);
3421 if (!ret && (pcu_mbox & (1<<31))) { /* OC supported */
3422 DRM_DEBUG_DRIVER("Overclocking supported. Max: %dMHz, Overclock max: %dMHz\n",
3423 (dev_priv->rps.max_delay & 0xff) * 50,
3424 (pcu_mbox & 0xff) * 50);
3425 dev_priv->rps.hw_max = pcu_mbox & 0xff;
3428 } 3426 }
3429 3427
3430 dev_priv->rps.power = HIGH_POWER; /* force a reset */ 3428 dev_priv->rps.power = HIGH_POWER; /* force a reset */