#include "../../../platform/x86/intel_ips.h"
#include <linux/module.h>
+#define FORCEWAKE_ACK_TIMEOUT_MS 2
+
/* FBC, or Frame Buffer Compression, is a technique employed to compress the
* framebuffer contents in-memory, aiming at reducing the required bandwidth
* during in-memory transfers and, therefore, reduce the power packet.
u32 limits = gen6_rps_limits(dev_priv, &val);
WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+ WARN_ON(val > dev_priv->rps.max_delay);
+ WARN_ON(val < dev_priv->rps.min_delay);
if (val == dev_priv->rps.cur_delay)
return;
*/
I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, limits);
+ POSTING_READ(GEN6_RPNSWREQ);
+
dev_priv->rps.cur_delay = val;
trace_intel_gpu_freq_change(val * 50);
{
struct drm_i915_private *dev_priv = dev->dev_private;
int pipe;
- uint32_t dspclk_gate = VRHUNIT_CLOCK_GATE_DISABLE;
-
- I915_WRITE(PCH_DSPCLK_GATE_D, dspclk_gate);
I915_WRITE(WM3_LP_ILK, 0);
I915_WRITE(WM2_LP_ILK, 0);
*/
I915_WRITE(GEN6_UCGCTL2, GEN6_RCZUNIT_CLOCK_GATE_DISABLE);
- I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
+ /* WaDisableEarlyCull */
+ I915_WRITE(_3D_CHICKEN3,
+ _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
I915_WRITE(IVB_CHICKEN3,
CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
+ /* WaDisableEarlyCull */
+ I915_WRITE(_3D_CHICKEN3,
+ _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
+
I915_WRITE(IVB_CHICKEN3,
CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
CHICKEN3_DGMG_DONE_FIX_DISABLE);
I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER,
GEN7_WA_L3_CHICKEN_MODE);
+ /* WaForceL3Serialization */
+ I915_WRITE(GEN7_L3SQCREG4, I915_READ(GEN7_L3SQCREG4) &
+ ~L3SQ_URB_READ_CAM_MATCH_DISABLE);
+
/* According to the BSpec vol1g, bit 12 (RCPBUNIT) clock
* gating disable must be set. Failure to set it results in
* flickering pixels due to Z write ordering failures after
I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
+ /* WaDisableEarlyCull */
+ I915_WRITE(_3D_CHICKEN3,
+ _MASKED_BIT_ENABLE(_3D_CHICKEN_SF_DISABLE_OBJEND_CULL));
+
I915_WRITE(IVB_CHICKEN3,
CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
CHICKEN3_DGMG_DONE_FIX_DISABLE);
I915_WRITE(GEN7_L3CNTLREG1, GEN7_WA_FOR_GEN7_L3_CONTROL);
I915_WRITE(GEN7_L3_CHICKEN_MODE_REGISTER, GEN7_WA_L3_CHICKEN_MODE);
+ /* WaForceL3Serialization */
+ I915_WRITE(GEN7_L3SQCREG4, I915_READ(GEN7_L3SQCREG4) &
+ ~L3SQ_URB_READ_CAM_MATCH_DISABLE);
+
/* This is required by WaCatErrorRejectionIssue */
I915_WRITE(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG,
I915_READ(GEN7_SQ_CHICKEN_MBCUNIT_CONFIG) |
if (IS_PINEVIEW(dev))
I915_WRITE(ECOSKPD, _MASKED_BIT_ENABLE(ECO_GATING_CX_ONLY));
+
+ /* IIR "flip pending" means done if this bit is set */
+ I915_WRITE(ECOSKPD, _MASKED_BIT_DISABLE(ECO_FLIP_DONE));
}
static void i85x_init_clock_gating(struct drm_device *dev)
else
forcewake_ack = FORCEWAKE_ACK;
- if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1) == 0, 500))
- DRM_ERROR("Force wake wait timed out\n");
+ if (wait_for_atomic((I915_READ_NOTRACE(forcewake_ack) & 1) == 0,
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR("Timed out waiting for forcewake old ack to clear.\n");
I915_WRITE_NOTRACE(FORCEWAKE, 1);
- POSTING_READ(FORCEWAKE);
+ POSTING_READ(ECOBUS); /* something from same cacheline, but !FORCEWAKE */
- if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500))
- DRM_ERROR("Force wake wait timed out\n");
+ if (wait_for_atomic((I915_READ_NOTRACE(forcewake_ack) & 1),
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR("Timed out waiting for forcewake to ack request.\n");
__gen6_gt_wait_for_thread_c0(dev_priv);
}
else
forcewake_ack = FORCEWAKE_MT_ACK;
- if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1) == 0, 500))
- DRM_ERROR("Force wake wait timed out\n");
+ if (wait_for_atomic((I915_READ_NOTRACE(forcewake_ack) & 1) == 0,
+ 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));
- POSTING_READ(FORCEWAKE_MT);
+ POSTING_READ(ECOBUS); /* something from same cacheline, but !FORCEWAKE */
- if (wait_for_atomic_us((I915_READ_NOTRACE(forcewake_ack) & 1), 500))
- DRM_ERROR("Force wake wait timed out\n");
+ if (wait_for_atomic((I915_READ_NOTRACE(forcewake_ack) & 1),
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR("Timed out waiting for forcewake to ack request.\n");
__gen6_gt_wait_for_thread_c0(dev_priv);
}
static void __gen6_gt_force_wake_put(struct drm_i915_private *dev_priv)
{
I915_WRITE_NOTRACE(FORCEWAKE, 0);
- POSTING_READ(FORCEWAKE);
+ /* gen6_gt_check_fifodbg doubles as the POSTING_READ */
gen6_gt_check_fifodbg(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));
- POSTING_READ(FORCEWAKE_MT);
+ /* gen6_gt_check_fifodbg doubles as the POSTING_READ */
gen6_gt_check_fifodbg(dev_priv);
}
static void vlv_force_wake_get(struct drm_i915_private *dev_priv)
{
- /* Already awake? */
- if ((I915_READ(0x130094) & 0xa1) == 0xa1)
- return;
+ if (wait_for_atomic((I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1) == 0,
+ FORCEWAKE_ACK_TIMEOUT_MS))
+ DRM_ERROR("Timed out waiting for forcewake old ack to clear.\n");
- I915_WRITE_NOTRACE(FORCEWAKE_VLV, 0xffffffff);
- POSTING_READ(FORCEWAKE_VLV);
+ I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_ENABLE(1));
- if (wait_for_atomic_us((I915_READ_NOTRACE(FORCEWAKE_ACK_VLV) & 1), 500))
- DRM_ERROR("Force wake wait timed out\n");
+ 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");
__gen6_gt_wait_for_thread_c0(dev_priv);
}
static void vlv_force_wake_put(struct drm_i915_private *dev_priv)
{
- I915_WRITE_NOTRACE(FORCEWAKE_VLV, 0xffff0000);
- /* FIXME: confirm VLV behavior with Punit folks */
- POSTING_READ(FORCEWAKE_VLV);
+ I915_WRITE_NOTRACE(FORCEWAKE_VLV, _MASKED_BIT_DISABLE(1));
+ /* The below doubles as a POSTING_READ */
+ gen6_gt_check_fifodbg(dev_priv);
}
void intel_gt_init(struct drm_device *dev)
projects / ~andy / linux / blobdiff