We could split this out into a separate routine at some point as an
optimization.
Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
drivers/gpu/drm/i915/i915_reg.h | 2 ++
drivers/gpu/drm/i915/intel_pm.c | 11 ++++++++---
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1c6e066..558c6d1 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4271,6 +4271,8 @@
#define FORCEWAKE 0xA18C
#define FORCEWAKE_VLV 0x1300b0
#define FORCEWAKE_ACK_VLV 0x1300b4
+#define FORCEWAKE_MEDIA_VLV 0x1300b8
+#define FORCEWAKE_ACK_MEDIA_VLV 0x1300bc
#define FORCEWAKE_ACK_HSW 0x130044
#define FORCEWAKE_ACK 0x130090
#define VLV_GTLC_WAKE_CTRL 0x130090
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 3e976f4..e3947cb 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4423,10 +4423,15 @@ static void vlv_force_wake_get(struct drm_i915_private *dev_priv)
DRM_ERROR("Timed out waiting for forcewake old ack to clear.\n");
I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
+ I915_WRITE_NOTRACE(FORCEWAKE_MEDIA_VLV, _MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
if (wait_for_atomic((I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1),
FORCEWAKE_ACK_TIMEOUT_MS))
- DRM_ERROR("Timed out waiting for forcewake to ack request.\n");
+ DRM_ERROR("Timed out waiting for GT to ack forcewake request.\n");
+
+ if (wait_for_atomic((I915_READ_NOTRACE(FORCEWAKE_ACK_MEDIA_VLV) & 1),
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR("Timed out waiting for media to ack forcewake request.\n");
__gen6_gt_wait_for_thread_c0(dev_priv);
}
@@ -4434,8 +4439,8 @@ static void vlv_force_wake_get(struct drm_i915_private *dev_priv)
static void vlv_force_wake_put(struct drm_i915_private *dev_priv)
{
I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_DISABLE(FORCEWAKE_KERNEL));
- /* something from same cacheline, but !FORCEWAKE_VLV */
- POSTING_READ(FORCEWAKE_ACK_VLV);
+ I915_WRITE_NOTRACE(FORCEWAKE_MEDIA_VLV, _MASKED_BIT_DISABLE(FORCEWAKE_KERNEL));
+ /* The below doubles as a POSTING_READ */
gen6_gt_check_fifodbg(dev_priv);
}
--
1.7.9.5
