No functional change, but reserves 0x2 for use by userspace.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_reg.h | 2 ++
drivers/gpu/drm/i915/intel_pm.c | 10 +++++-----
2 files changed, 7 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 8120bf2..d482c12 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -4115,6 +4115,8 @@
#define FORCEWAKE_ACK_HSW 0x130044
#define FORCEWAKE_ACK 0x130090
#define FORCEWAKE_MT 0xa188 /* multi-threaded */
+#define FORCEWAKE_KERNEL 0x1
+#define FORCEWAKE_USER 0x2
#define FORCEWAKE_MT_ACK 0x130040
#define ECOBUS 0xa180
#define FORCEWAKE_MT_ENABLE (1<<5)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 4e5fc33..9853f35 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -4011,7 +4011,7 @@ static void __gen6_gt_force_wake_get(struct drm_i915_private *dev_priv)
FORCEWAKE_ACK_TIMEOUT_MS))
DRM_ERROR("Timed out waiting for forcewake old ack to clear.\n");
- I915_WRITE_NOTRACE(FORCEWAKE, 1);
+ I915_WRITE_NOTRACE(FORCEWAKE, FORCEWAKE_KERNEL);
POSTING_READ(ECOBUS); /* something from same cacheline, but !FORCEWAKE */
if (wait_for_atomic((I915_READ_NOTRACE(forcewake_ack) & 1),
@@ -4034,7 +4034,7 @@ static void __gen6_gt_force_wake_mt_get(struct drm_i915_private *dev_priv)
FORCEWAKE_ACK_TIMEOUT_MS))
DRM_ERROR("Timed out waiting for forcewake old ack to clear.\n");
- I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_ENABLE(1));
+ I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
POSTING_READ(ECOBUS); /* something from same cacheline, but !FORCEWAKE */
if (wait_for_atomic((I915_READ_NOTRACE(forcewake_ack) & 1),
@@ -4078,7 +4078,7 @@ static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
static void __gen6_gt_force_wake_mt_put(struct drm_i915_private *dev_priv)
{
- I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_DISABLE(1));
+ I915_WRITE_NOTRACE(FORCEWAKE_MT, _MASKED_BIT_DISABLE(FORCEWAKE_KERNEL));
/* gen6_gt_check_fifodbg doubles as the POSTING_READ */
gen6_gt_check_fifodbg(dev_priv);
}
@@ -4122,7 +4122,7 @@ static void vlv_force_wake_get(struct drm_i915_private *dev_priv)
FORCEWAKE_ACK_TIMEOUT_MS))
DRM_ERROR("Timed out waiting for forcewake old ack to clear.\n");
- I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_ENABLE(1));
+ I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_ENABLE(FORCEWAKE_KERNEL));
if (wait_for_atomic((I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1),
FORCEWAKE_ACK_TIMEOUT_MS))
@@ -4133,7 +4133,7 @@ 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(1));
+ I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_DISABLE(FORCEWAKE_KERNEL));
/* The below doubles as a POSTING_READ */
gen6_gt_check_fifodbg(dev_priv);
}
--
1.7.10.4
