struct drm_i915_private *dev_priv = dev->dev_private;
int pipe = crtc->pipe;
enum dpio_channel port = vlv_pipe_to_channel(pipe);
- int dpll = DPLL(crtc->pipe);
u32 tmp;
assert_pipe_disabled(dev_priv, crtc->pipe);
udelay(1);
/* Enable PLL */
- tmp = I915_READ(dpll);
- tmp |= DPLL_VCO_ENABLE;
- I915_WRITE(dpll, tmp);
+ I915_WRITE(DPLL(pipe), crtc->config.dpll_hw_state.dpll);
/* Check PLL is locked */
- if (wait_for(((I915_READ(dpll) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
+ if (wait_for(((I915_READ(DPLL(pipe)) & DPLL_LOCK_VLV) == DPLL_LOCK_VLV), 1))
DRM_ERROR("PLL %d failed to lock\n", pipe);
- /* Deassert soft data lane reset*/
- tmp = vlv_dpio_read(dev_priv, pipe, VLV_PCS_DW0(port));
- tmp |= (DPIO_PCS_TX_LANE2_RESET | DPIO_PCS_TX_LANE1_RESET);
- vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), tmp);
-
+ /* not sure when this should be written */
+ I915_WRITE(DPLL_MD(pipe), crtc->config.dpll_hw_state.dpll_md);
+ POSTING_READ(DPLL_MD(pipe));
mutex_unlock(&dev_priv->dpio_lock);
}
static void chv_disable_pll(struct drm_i915_private *dev_priv, enum pipe pipe)
{
- int dpll = DPLL(pipe);
+ enum dpio_channel port = vlv_pipe_to_channel(pipe);
u32 val;
+ /* Make sure the pipe isn't still relying on us */
+ assert_pipe_disabled(dev_priv, pipe);
+
/* Set PLL en = 0 */
- val = I915_READ(dpll);
- val &= ~DPLL_VCO_ENABLE;
- I915_WRITE(dpll, val);
+ val = DPLL_SSC_REF_CLOCK_CHV;
+ if (pipe != PIPE_A)
+ val |= DPLL_INTEGRATED_CRI_CLK_VLV;
+ I915_WRITE(DPLL(pipe), val);
+ POSTING_READ(DPLL(pipe));
+ mutex_lock(&dev_priv->dpio_lock);
+
+ /* Disable 10bit clock to display controller */
+ val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
+ val &= ~DPIO_DCLKP_EN;
+ vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val);
+
+ mutex_unlock(&dev_priv->dpio_lock);
}
void vlv_wait_port_ready(struct drm_i915_private *dev_priv,
int pipe = crtc->pipe;
int dpll_reg = DPLL(crtc->pipe);
enum dpio_channel port = vlv_pipe_to_channel(pipe);
- u32 val, loopfilter, intcoeff;
+ u32 loopfilter, intcoeff;
u32 bestn, bestm1, bestm2, bestp1, bestp2, bestm2_frac;
int refclk;
- mutex_lock(&dev_priv->dpio_lock);
+ crtc->config.dpll_hw_state.dpll = DPLL_SSC_REF_CLOCK_CHV |
+ DPLL_REFA_CLK_ENABLE_VLV | DPLL_VGA_MODE_DIS |
+ DPLL_VCO_ENABLE;
+ if (pipe != PIPE_A)
+ crtc->config.dpll_hw_state.dpll |= DPLL_INTEGRATED_CRI_CLK_VLV;
+
+ crtc->config.dpll_hw_state.dpll_md =
+ (crtc->config.pixel_multiplier - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT;
bestn = crtc->config.dpll.n;
bestm2_frac = crtc->config.dpll.m2 & 0x3fffff;
/*
* Enable Refclk and SSC
*/
- val = I915_READ(dpll_reg);
- val |= (DPLL_SSC_REF_CLOCK_CHV | DPLL_REFA_CLK_ENABLE_VLV);
- I915_WRITE(dpll_reg, val);
-
- /* Propagate soft reset to data lane reset */
- val = vlv_dpio_read(dev_priv, pipe, VLV_PCS_DW0(port));
- val &= ~(DPIO_PCS_TX_LANE2_RESET | DPIO_PCS_TX_LANE1_RESET);
- vlv_dpio_write(dev_priv, pipe, VLV_PCS_DW0(port), val);
+ I915_WRITE(dpll_reg,
+ crtc->config.dpll_hw_state.dpll & ~DPLL_VCO_ENABLE);
- /* Disable 10bit clock to display controller */
- val = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW14(port));
- val &= ~DPIO_DCLKP_EN;
- vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW14(port), val);
+ mutex_lock(&dev_priv->dpio_lock);
/* p1 and p2 divider */
vlv_dpio_write(dev_priv, pipe, CHV_CMN_DW13(port),
do_intel_finish_page_flip(dev, crtc);
}
+/* Is 'a' after or equal to 'b'? */
+static bool g4x_flip_count_after_eq(u32 a, u32 b)
+{
+ return !((a - b) & 0x80000000);
+}
+
+static bool page_flip_finished(struct intel_crtc *crtc)
+{
+ struct drm_device *dev = crtc->base.dev;
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
+ /*
+ * The relevant registers doen't exist on pre-ctg.
+ * As the flip done interrupt doesn't trigger for mmio
+ * flips on gmch platforms, a flip count check isn't
+ * really needed there. But since ctg has the registers,
+ * include it in the check anyway.
+ */
+ if (INTEL_INFO(dev)->gen < 5 && !IS_G4X(dev))
+ return true;
+
+ /*
+ * A DSPSURFLIVE check isn't enough in case the mmio and CS flips
+ * used the same base address. In that case the mmio flip might
+ * have completed, but the CS hasn't even executed the flip yet.
+ *
+ * A flip count check isn't enough as the CS might have updated
+ * the base address just after start of vblank, but before we
+ * managed to process the interrupt. This means we'd complete the
+ * CS flip too soon.
+ *
+ * Combining both checks should get us a good enough result. It may
+ * still happen that the CS flip has been executed, but has not
+ * yet actually completed. But in case the base address is the same
+ * anyway, we don't really care.
+ */
+ return (I915_READ(DSPSURFLIVE(crtc->plane)) & ~0xfff) ==
+ crtc->unpin_work->gtt_offset &&
+ g4x_flip_count_after_eq(I915_READ(PIPE_FLIPCOUNT_GM45(crtc->pipe)),
+ crtc->unpin_work->flip_count);
+}
+
void intel_prepare_page_flip(struct drm_device *dev, int plane)
{
struct drm_i915_private *dev_priv = dev->dev_private;
* is also accompanied by a spurious intel_prepare_page_flip().
*/
spin_lock_irqsave(&dev->event_lock, flags);
- if (intel_crtc->unpin_work)
+ if (intel_crtc->unpin_work && page_flip_finished(intel_crtc))
atomic_inc_not_zero(&intel_crtc->unpin_work->pending);
spin_unlock_irqrestore(&dev->event_lock, flags);
}
if (ret)
goto err;
+ intel_crtc->unpin_work->gtt_offset =
+ i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset;
+
ret = intel_ring_begin(ring, 6);
if (ret)
goto err_unpin;
intel_ring_emit(ring, MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
intel_ring_emit(ring, fb->pitches[0]);
- intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+ intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
intel_ring_emit(ring, 0); /* aux display base address, unused */
intel_mark_page_flip_active(intel_crtc);
if (ret)
goto err;
+ intel_crtc->unpin_work->gtt_offset =
+ i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset;
+
ret = intel_ring_begin(ring, 6);
if (ret)
goto err_unpin;
intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
intel_ring_emit(ring, fb->pitches[0]);
- intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+ intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
intel_ring_emit(ring, MI_NOOP);
intel_mark_page_flip_active(intel_crtc);
if (ret)
goto err;
+ intel_crtc->unpin_work->gtt_offset =
+ i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset;
+
ret = intel_ring_begin(ring, 4);
if (ret)
goto err_unpin;
intel_ring_emit(ring, MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
intel_ring_emit(ring, fb->pitches[0]);
- intel_ring_emit(ring,
- (i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset) |
+ intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset |
obj->tiling_mode);
/* XXX Enabling the panel-fitter across page-flip is so far
if (ret)
goto err;
+ intel_crtc->unpin_work->gtt_offset =
+ i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset;
+
ret = intel_ring_begin(ring, 4);
if (ret)
goto err_unpin;
intel_ring_emit(ring, MI_DISPLAY_FLIP |
MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
intel_ring_emit(ring, fb->pitches[0] | obj->tiling_mode);
- intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+ intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
/* Contrary to the suggestions in the documentation,
* "Enable Panel Fitter" does not seem to be required when page
if (ret)
goto err;
+ intel_crtc->unpin_work->gtt_offset =
+ i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset;
+
switch (intel_crtc->plane) {
case PLANE_A:
plane_bit = MI_DISPLAY_FLIP_IVB_PLANE_A;
intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | plane_bit);
intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
- intel_ring_emit(ring, i915_gem_obj_ggtt_offset(obj) + intel_crtc->dspaddr_offset);
+ intel_ring_emit(ring, intel_crtc->unpin_work->gtt_offset);
intel_ring_emit(ring, (MI_NOOP));
intel_mark_page_flip_active(intel_crtc);
atomic_inc(&intel_crtc->unpin_work_count);
intel_crtc->reset_counter = atomic_read(&dev_priv->gpu_error.reset_counter);
+ if (INTEL_INFO(dev)->gen >= 5 || IS_G4X(dev))
+ work->flip_count = I915_READ(PIPE_FLIPCOUNT_GM45(intel_crtc->pipe)) + 1;
+
ret = dev_priv->display.queue_flip(dev, crtc, fb, obj, page_flip_flags);
if (ret)
goto cleanup_pending;
intel_dp_init(dev, VLV_DISPLAY_BASE + DP_C, PORT_C);
}
+ if (IS_CHERRYVIEW(dev)) {
+ if (I915_READ(VLV_DISPLAY_BASE + CHV_HDMID) & SDVO_DETECTED) {
+ intel_hdmi_init(dev, VLV_DISPLAY_BASE + CHV_HDMID,
+ PORT_D);
+ if (I915_READ(VLV_DISPLAY_BASE + DP_D) & DP_DETECTED)
+ intel_dp_init(dev, VLV_DISPLAY_BASE + DP_D, PORT_D);
+ }
+ }
+
intel_dsi_init(dev);
} else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
bool found = false;
projects / firefly-linux-kernel-4.4.55.git / blobdiff