]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - drivers/gpu/drm/i915/intel_display.c
Merge remote-tracking branch 'drm-intel/for-linux-next'
[karo-tx-linux.git] / drivers / gpu / drm / i915 / intel_display.c
index f674267d24dfcecc15602f3d04b97138106908c0..3e79a2a0669d478646c9ac3aef1a727af8774160 100644 (file)
@@ -309,32 +309,30 @@ static const intel_limit_t intel_limits_ironlake_dual_lvds_100m = {
                .p2_slow = 7, .p2_fast = 7 },
 };
 
-static const intel_limit_t intel_limits_vlv_dac = {
-       .dot = { .min = 25000, .max = 270000 },
-       .vco = { .min = 4000000, .max = 6000000 },
-       .n = { .min = 1, .max = 7 },
-       .m = { .min = 22, .max = 450 }, /* guess */
-       .m1 = { .min = 2, .max = 3 },
-       .m2 = { .min = 11, .max = 156 },
-       .p = { .min = 10, .max = 30 },
-       .p1 = { .min = 1, .max = 3 },
-       .p2 = { .dot_limit = 270000,
-               .p2_slow = 2, .p2_fast = 20 },
-};
-
-static const intel_limit_t intel_limits_vlv_hdmi = {
-       .dot = { .min = 25000, .max = 270000 },
+static const intel_limit_t intel_limits_vlv = {
+        /*
+         * These are the data rate limits (measured in fast clocks)
+         * since those are the strictest limits we have. The fast
+         * clock and actual rate limits are more relaxed, so checking
+         * them would make no difference.
+         */
+       .dot = { .min = 25000 * 5, .max = 270000 * 5 },
        .vco = { .min = 4000000, .max = 6000000 },
        .n = { .min = 1, .max = 7 },
-       .m = { .min = 60, .max = 300 }, /* guess */
        .m1 = { .min = 2, .max = 3 },
        .m2 = { .min = 11, .max = 156 },
-       .p = { .min = 10, .max = 30 },
        .p1 = { .min = 2, .max = 3 },
-       .p2 = { .dot_limit = 270000,
-               .p2_slow = 2, .p2_fast = 20 },
+       .p2 = { .p2_slow = 2, .p2_fast = 20 }, /* slow=min, fast=max */
 };
 
+static void vlv_clock(int refclk, intel_clock_t *clock)
+{
+       clock->m = clock->m1 * clock->m2;
+       clock->p = clock->p1 * clock->p2;
+       clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
+       clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
+}
+
 /**
  * Returns whether any output on the specified pipe is of the specified type
  */
@@ -410,10 +408,7 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc, int refclk)
                else
                        limit = &intel_limits_pineview_sdvo;
        } else if (IS_VALLEYVIEW(dev)) {
-               if (intel_pipe_has_type(crtc, INTEL_OUTPUT_ANALOG))
-                       limit = &intel_limits_vlv_dac;
-               else
-                       limit = &intel_limits_vlv_hdmi;
+               limit = &intel_limits_vlv;
        } else if (!IS_GEN2(dev)) {
                if (intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
                        limit = &intel_limits_i9xx_lvds;
@@ -435,8 +430,8 @@ static void pineview_clock(int refclk, intel_clock_t *clock)
 {
        clock->m = clock->m2 + 2;
        clock->p = clock->p1 * clock->p2;
-       clock->vco = refclk * clock->m / clock->n;
-       clock->dot = clock->vco / clock->p;
+       clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n);
+       clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
 }
 
 static uint32_t i9xx_dpll_compute_m(struct dpll *dpll)
@@ -448,8 +443,8 @@ static void i9xx_clock(int refclk, intel_clock_t *clock)
 {
        clock->m = i9xx_dpll_compute_m(clock);
        clock->p = clock->p1 * clock->p2;
-       clock->vco = refclk * clock->m / (clock->n + 2);
-       clock->dot = clock->vco / clock->p;
+       clock->vco = DIV_ROUND_CLOSEST(refclk * clock->m, clock->n + 2);
+       clock->dot = DIV_ROUND_CLOSEST(clock->vco, clock->p);
 }
 
 #define INTELPllInvalid(s)   do { /* DRM_DEBUG(s); */ return false; } while (0)
@@ -462,20 +457,26 @@ static bool intel_PLL_is_valid(struct drm_device *dev,
                               const intel_limit_t *limit,
                               const intel_clock_t *clock)
 {
+       if (clock->n   < limit->n.min   || limit->n.max   < clock->n)
+               INTELPllInvalid("n out of range\n");
        if (clock->p1  < limit->p1.min  || limit->p1.max  < clock->p1)
                INTELPllInvalid("p1 out of range\n");
-       if (clock->p   < limit->p.min   || limit->p.max   < clock->p)
-               INTELPllInvalid("p out of range\n");
        if (clock->m2  < limit->m2.min  || limit->m2.max  < clock->m2)
                INTELPllInvalid("m2 out of range\n");
        if (clock->m1  < limit->m1.min  || limit->m1.max  < clock->m1)
                INTELPllInvalid("m1 out of range\n");
-       if (clock->m1 <= clock->m2 && !IS_PINEVIEW(dev))
-               INTELPllInvalid("m1 <= m2\n");
-       if (clock->m   < limit->m.min   || limit->m.max   < clock->m)
-               INTELPllInvalid("m out of range\n");
-       if (clock->n   < limit->n.min   || limit->n.max   < clock->n)
-               INTELPllInvalid("n out of range\n");
+
+       if (!IS_PINEVIEW(dev) && !IS_VALLEYVIEW(dev))
+               if (clock->m1 <= clock->m2)
+                       INTELPllInvalid("m1 <= m2\n");
+
+       if (!IS_VALLEYVIEW(dev)) {
+               if (clock->p < limit->p.min || limit->p.max < clock->p)
+                       INTELPllInvalid("p out of range\n");
+               if (clock->m < limit->m.min || limit->m.max < clock->m)
+                       INTELPllInvalid("m out of range\n");
+       }
+
        if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
                INTELPllInvalid("vco out of range\n");
        /* XXX: We may need to be checking "Dot clock" depending on the multiplier,
@@ -669,68 +670,56 @@ vlv_find_best_dpll(const intel_limit_t *limit, struct drm_crtc *crtc,
                   int target, int refclk, intel_clock_t *match_clock,
                   intel_clock_t *best_clock)
 {
-       u32 p1, p2, m1, m2, vco, bestn, bestm1, bestm2, bestp1, bestp2;
-       u32 m, n, fastclk;
-       u32 updrate, minupdate, p;
-       unsigned long bestppm, ppm, absppm;
-       int dotclk, flag;
-
-       flag = 0;
-       dotclk = target * 1000;
-       bestppm = 1000000;
-       ppm = absppm = 0;
-       fastclk = dotclk / (2*100);
-       updrate = 0;
-       minupdate = 19200;
-       n = p = p1 = p2 = m = m1 = m2 = vco = bestn = 0;
-       bestm1 = bestm2 = bestp1 = bestp2 = 0;
+       struct drm_device *dev = crtc->dev;
+       intel_clock_t clock;
+       unsigned int bestppm = 1000000;
+       /* min update 19.2 MHz */
+       int max_n = min(limit->n.max, refclk / 19200);
+       bool found = false;
+
+       target *= 5; /* fast clock */
+
+       memset(best_clock, 0, sizeof(*best_clock));
 
        /* based on hardware requirement, prefer smaller n to precision */
-       for (n = limit->n.min; n <= ((refclk) / minupdate); n++) {
-               updrate = refclk / n;
-               for (p1 = limit->p1.max; p1 > limit->p1.min; p1--) {
-                       for (p2 = limit->p2.p2_fast+1; p2 > 0; p2--) {
-                               if (p2 > 10)
-                                       p2 = p2 - 1;
-                               p = p1 * p2;
+       for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) {
+               for (clock.p1 = limit->p1.max; clock.p1 >= limit->p1.min; clock.p1--) {
+                       for (clock.p2 = limit->p2.p2_fast; clock.p2 >= limit->p2.p2_slow;
+                            clock.p2 -= clock.p2 > 10 ? 2 : 1) {
+                               clock.p = clock.p1 * clock.p2;
                                /* based on hardware requirement, prefer bigger m1,m2 values */
-                               for (m1 = limit->m1.min; m1 <= limit->m1.max; m1++) {
-                                       m2 = DIV_ROUND_CLOSEST(fastclk * p * n, refclk * m1);
-                                       m = m1 * m2;
-                                       vco = updrate * m;
+                               for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max; clock.m1++) {
+                                       unsigned int ppm, diff;
+
+                                       clock.m2 = DIV_ROUND_CLOSEST(target * clock.p * clock.n,
+                                                                    refclk * clock.m1);
+
+                                       vlv_clock(refclk, &clock);
 
-                                       if (vco < limit->vco.min || vco >= limit->vco.max)
+                                       if (!intel_PLL_is_valid(dev, limit,
+                                                               &clock))
                                                continue;
 
-                                       ppm = 1000000 * ((vco / p) - fastclk) / fastclk;
-                                       absppm = (ppm > 0) ? ppm : (-ppm);
-                                       if (absppm < 100 && ((p1 * p2) > (bestp1 * bestp2))) {
+                                       diff = abs(clock.dot - target);
+                                       ppm = div_u64(1000000ULL * diff, target);
+
+                                       if (ppm < 100 && clock.p > best_clock->p) {
                                                bestppm = 0;
-                                               flag = 1;
-                                       }
-                                       if (absppm < bestppm - 10) {
-                                               bestppm = absppm;
-                                               flag = 1;
+                                               *best_clock = clock;
+                                               found = true;
                                        }
-                                       if (flag) {
-                                               bestn = n;
-                                               bestm1 = m1;
-                                               bestm2 = m2;
-                                               bestp1 = p1;
-                                               bestp2 = p2;
-                                               flag = 0;
+
+                                       if (bestppm >= 10 && ppm < bestppm - 10) {
+                                               bestppm = ppm;
+                                               *best_clock = clock;
+                                               found = true;
                                        }
                                }
                        }
                }
        }
-       best_clock->n = bestn;
-       best_clock->m1 = bestm1;
-       best_clock->m2 = bestm2;
-       best_clock->p1 = bestp1;
-       best_clock->p2 = bestp2;
 
-       return true;
+       return found;
 }
 
 bool intel_crtc_active(struct drm_crtc *crtc)
@@ -811,6 +800,25 @@ void intel_wait_for_vblank(struct drm_device *dev, int pipe)
                DRM_DEBUG_KMS("vblank wait timed out\n");
 }
 
+static bool pipe_dsl_stopped(struct drm_device *dev, enum pipe pipe)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       u32 reg = PIPEDSL(pipe);
+       u32 line1, line2;
+       u32 line_mask;
+
+       if (IS_GEN2(dev))
+               line_mask = DSL_LINEMASK_GEN2;
+       else
+               line_mask = DSL_LINEMASK_GEN3;
+
+       line1 = I915_READ(reg) & line_mask;
+       mdelay(5);
+       line2 = I915_READ(reg) & line_mask;
+
+       return line1 == line2;
+}
+
 /*
  * intel_wait_for_pipe_off - wait for pipe to turn off
  * @dev: drm device
@@ -842,22 +850,8 @@ void intel_wait_for_pipe_off(struct drm_device *dev, int pipe)
                             100))
                        WARN(1, "pipe_off wait timed out\n");
        } else {
-               u32 last_line, line_mask;
-               int reg = PIPEDSL(pipe);
-               unsigned long timeout = jiffies + msecs_to_jiffies(100);
-
-               if (IS_GEN2(dev))
-                       line_mask = DSL_LINEMASK_GEN2;
-               else
-                       line_mask = DSL_LINEMASK_GEN3;
-
                /* Wait for the display line to settle */
-               do {
-                       last_line = I915_READ(reg) & line_mask;
-                       mdelay(5);
-               } while (((I915_READ(reg) & line_mask) != last_line) &&
-                        time_after(timeout, jiffies));
-               if (time_after(jiffies, timeout))
+               if (wait_for(pipe_dsl_stopped(dev, pipe), 100))
                        WARN(1, "pipe_off wait timed out\n");
        }
 }
@@ -1823,63 +1817,75 @@ static void intel_disable_pipe(struct drm_i915_private *dev_priv,
  * Plane regs are double buffered, going from enabled->disabled needs a
  * trigger in order to latch.  The display address reg provides this.
  */
-void intel_flush_display_plane(struct drm_i915_private *dev_priv,
-                                     enum plane plane)
+void intel_flush_primary_plane(struct drm_i915_private *dev_priv,
+                              enum plane plane)
 {
-       if (dev_priv->info->gen >= 4)
-               I915_WRITE(DSPSURF(plane), I915_READ(DSPSURF(plane)));
-       else
-               I915_WRITE(DSPADDR(plane), I915_READ(DSPADDR(plane)));
+       u32 reg = dev_priv->info->gen >= 4 ? DSPSURF(plane) : DSPADDR(plane);
+
+       I915_WRITE(reg, I915_READ(reg));
+       POSTING_READ(reg);
 }
 
 /**
- * intel_enable_plane - enable a display plane on a given pipe
+ * intel_enable_primary_plane - enable the primary plane on a given pipe
  * @dev_priv: i915 private structure
  * @plane: plane to enable
  * @pipe: pipe being fed
  *
  * Enable @plane on @pipe, making sure that @pipe is running first.
  */
-static void intel_enable_plane(struct drm_i915_private *dev_priv,
-                              enum plane plane, enum pipe pipe)
+static void intel_enable_primary_plane(struct drm_i915_private *dev_priv,
+                                      enum plane plane, enum pipe pipe)
 {
+       struct intel_crtc *intel_crtc =
+               to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
        int reg;
        u32 val;
 
        /* If the pipe isn't enabled, we can't pump pixels and may hang */
        assert_pipe_enabled(dev_priv, pipe);
 
+       WARN(intel_crtc->primary_enabled, "Primary plane already enabled\n");
+
+       intel_crtc->primary_enabled = true;
+
        reg = DSPCNTR(plane);
        val = I915_READ(reg);
        if (val & DISPLAY_PLANE_ENABLE)
                return;
 
        I915_WRITE(reg, val | DISPLAY_PLANE_ENABLE);
-       intel_flush_display_plane(dev_priv, plane);
+       intel_flush_primary_plane(dev_priv, plane);
        intel_wait_for_vblank(dev_priv->dev, pipe);
 }
 
 /**
- * intel_disable_plane - disable a display plane
+ * intel_disable_primary_plane - disable the primary plane
  * @dev_priv: i915 private structure
  * @plane: plane to disable
  * @pipe: pipe consuming the data
  *
  * Disable @plane; should be an independent operation.
  */
-static void intel_disable_plane(struct drm_i915_private *dev_priv,
-                               enum plane plane, enum pipe pipe)
+static void intel_disable_primary_plane(struct drm_i915_private *dev_priv,
+                                       enum plane plane, enum pipe pipe)
 {
+       struct intel_crtc *intel_crtc =
+               to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
        int reg;
        u32 val;
 
+       WARN(!intel_crtc->primary_enabled, "Primary plane already disabled\n");
+
+       intel_crtc->primary_enabled = false;
+
        reg = DSPCNTR(plane);
        val = I915_READ(reg);
        if ((val & DISPLAY_PLANE_ENABLE) == 0)
                return;
 
        I915_WRITE(reg, val & ~DISPLAY_PLANE_ENABLE);
-       intel_flush_display_plane(dev_priv, plane);
+       intel_flush_primary_plane(dev_priv, plane);
        intel_wait_for_vblank(dev_priv->dev, pipe);
 }
 
@@ -1915,10 +1921,7 @@ intel_pin_and_fence_fb_obj(struct drm_device *dev,
                alignment = 0;
                break;
        case I915_TILING_Y:
-               /* Despite that we check this in framebuffer_init userspace can
-                * screw us over and change the tiling after the fact. Only
-                * pinned buffers can't change their tiling. */
-               DRM_DEBUG_DRIVER("Y tiled not allowed for scan out buffers\n");
+               WARN(1, "Y tiled bo slipped through, driver bug!\n");
                return -EINVAL;
        default:
                BUG();
@@ -3332,7 +3335,7 @@ static void intel_disable_planes(struct drm_crtc *crtc)
                        intel_plane_disable(&intel_plane->base);
 }
 
-static void hsw_enable_ips(struct intel_crtc *crtc)
+void hsw_enable_ips(struct intel_crtc *crtc)
 {
        struct drm_i915_private *dev_priv = crtc->base.dev->dev_private;
 
@@ -3345,9 +3348,17 @@ static void hsw_enable_ips(struct intel_crtc *crtc)
         * for a vblank, so all we need to do here is to enable the IPS bit. */
        assert_plane_enabled(dev_priv, crtc->plane);
        I915_WRITE(IPS_CTL, IPS_ENABLE);
+
+       /* The bit only becomes 1 in the next vblank, so this wait here is
+        * essentially intel_wait_for_vblank. If we don't have this and don't
+        * wait for vblanks until the end of crtc_enable, then the HW state
+        * readout code will complain that the expected IPS_CTL value is not the
+        * one we read. */
+       if (wait_for(I915_READ_NOTRACE(IPS_CTL) & IPS_ENABLE, 50))
+               DRM_ERROR("Timed out waiting for IPS enable\n");
 }
 
-static void hsw_disable_ips(struct intel_crtc *crtc)
+void hsw_disable_ips(struct intel_crtc *crtc)
 {
        struct drm_device *dev = crtc->base.dev;
        struct drm_i915_private *dev_priv = dev->dev_private;
@@ -3454,7 +3465,7 @@ static void ironlake_crtc_enable(struct drm_crtc *crtc)
        intel_update_watermarks(crtc);
        intel_enable_pipe(dev_priv, pipe,
                          intel_crtc->config.has_pch_encoder, false);
-       intel_enable_plane(dev_priv, plane, pipe);
+       intel_enable_primary_plane(dev_priv, plane, pipe);
        intel_enable_planes(crtc);
        intel_crtc_update_cursor(crtc, true);
 
@@ -3496,7 +3507,7 @@ static void haswell_crtc_enable_planes(struct drm_crtc *crtc)
        int pipe = intel_crtc->pipe;
        int plane = intel_crtc->plane;
 
-       intel_enable_plane(dev_priv, plane, pipe);
+       intel_enable_primary_plane(dev_priv, plane, pipe);
        intel_enable_planes(crtc);
        intel_crtc_update_cursor(crtc, true);
 
@@ -3526,7 +3537,7 @@ static void haswell_crtc_disable_planes(struct drm_crtc *crtc)
 
        intel_crtc_update_cursor(crtc, false);
        intel_disable_planes(crtc);
-       intel_disable_plane(dev_priv, plane, pipe);
+       intel_disable_primary_plane(dev_priv, plane, pipe);
 }
 
 /*
@@ -3665,7 +3676,7 @@ static void ironlake_crtc_disable(struct drm_crtc *crtc)
 
        intel_crtc_update_cursor(crtc, false);
        intel_disable_planes(crtc);
-       intel_disable_plane(dev_priv, plane, pipe);
+       intel_disable_primary_plane(dev_priv, plane, pipe);
 
        if (intel_crtc->config.has_pch_encoder)
                intel_set_pch_fifo_underrun_reporting(dev, pipe, false);
@@ -3873,7 +3884,7 @@ static void valleyview_crtc_enable(struct drm_crtc *crtc)
 
        intel_update_watermarks(crtc);
        intel_enable_pipe(dev_priv, pipe, false, is_dsi);
-       intel_enable_plane(dev_priv, plane, pipe);
+       intel_enable_primary_plane(dev_priv, plane, pipe);
        intel_enable_planes(crtc);
        intel_crtc_update_cursor(crtc, true);
 
@@ -3911,7 +3922,7 @@ static void i9xx_crtc_enable(struct drm_crtc *crtc)
 
        intel_update_watermarks(crtc);
        intel_enable_pipe(dev_priv, pipe, false, false);
-       intel_enable_plane(dev_priv, plane, pipe);
+       intel_enable_primary_plane(dev_priv, plane, pipe);
        intel_enable_planes(crtc);
        /* The fixup needs to happen before cursor is enabled */
        if (IS_G4X(dev))
@@ -3967,7 +3978,7 @@ static void i9xx_crtc_disable(struct drm_crtc *crtc)
        intel_crtc_dpms_overlay(intel_crtc, false);
        intel_crtc_update_cursor(crtc, false);
        intel_disable_planes(crtc);
-       intel_disable_plane(dev_priv, plane, pipe);
+       intel_disable_primary_plane(dev_priv, plane, pipe);
 
        intel_disable_pipe(dev_priv, pipe);
 
@@ -5197,10 +5208,10 @@ static void vlv_crtc_clock_get(struct intel_crtc *crtc,
        clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7;
        clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f;
 
-       clock.vco = refclk * clock.m1 * clock.m2 / clock.n;
-       clock.dot = 2 * clock.vco / (clock.p1 * clock.p2);
+       vlv_clock(refclk, &clock);
 
-       pipe_config->port_clock = clock.dot / 10;
+       /* clock.dot is the fast clock */
+       pipe_config->port_clock = clock.dot / 5;
 }
 
 static bool i9xx_get_pipe_config(struct intel_crtc *crtc,
@@ -6057,11 +6068,6 @@ static int ironlake_crtc_mode_set(struct drm_crtc *crtc,
        else
                intel_crtc->lowfreq_avail = false;
 
-       if (intel_crtc->config.has_pch_encoder) {
-               pll = intel_crtc_to_shared_dpll(intel_crtc);
-
-       }
-
        intel_set_pipe_timings(intel_crtc);
 
        if (intel_crtc->config.has_pch_encoder) {
@@ -6547,22 +6553,62 @@ static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
        }
 }
 
-static void haswell_modeset_global_resources(struct drm_device *dev)
+#define for_each_power_domain(domain, mask)                            \
+       for ((domain) = 0; (domain) < POWER_DOMAIN_NUM; (domain)++)     \
+               if ((1 << (domain)) & (mask))
+
+static unsigned long get_pipe_power_domains(struct drm_device *dev,
+                                           enum pipe pipe, bool pfit_enabled)
 {
-       bool enable = false;
+       unsigned long mask;
+       enum transcoder transcoder;
+
+       transcoder = intel_pipe_to_cpu_transcoder(dev->dev_private, pipe);
+
+       mask = BIT(POWER_DOMAIN_PIPE(pipe));
+       mask |= BIT(POWER_DOMAIN_TRANSCODER(transcoder));
+       if (pfit_enabled)
+               mask |= BIT(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe));
+
+       return mask;
+}
+
+static void modeset_update_power_wells(struct drm_device *dev)
+{
+       unsigned long pipe_domains[I915_MAX_PIPES] = { 0, };
        struct intel_crtc *crtc;
 
+       /*
+        * First get all needed power domains, then put all unneeded, to avoid
+        * any unnecessary toggling of the power wells.
+        */
        list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
+               enum intel_display_power_domain domain;
+
                if (!crtc->base.enabled)
                        continue;
 
-               if (crtc->pipe != PIPE_A || crtc->config.pch_pfit.enabled ||
-                   crtc->config.cpu_transcoder != TRANSCODER_EDP)
-                       enable = true;
+               pipe_domains[crtc->pipe] = get_pipe_power_domains(dev,
+                                               crtc->pipe,
+                                               crtc->config.pch_pfit.enabled);
+
+               for_each_power_domain(domain, pipe_domains[crtc->pipe])
+                       intel_display_power_get(dev, domain);
        }
 
-       intel_set_power_well(dev, enable);
+       list_for_each_entry(crtc, &dev->mode_config.crtc_list, base.head) {
+               enum intel_display_power_domain domain;
+
+               for_each_power_domain(domain, crtc->enabled_power_domains)
+                       intel_display_power_put(dev, domain);
 
+               crtc->enabled_power_domains = pipe_domains[crtc->pipe];
+       }
+}
+
+static void haswell_modeset_global_resources(struct drm_device *dev)
+{
+       modeset_update_power_wells(dev);
        hsw_update_package_c8(dev);
 }
 
@@ -6708,6 +6754,44 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
        return 0;
 }
 
+static struct {
+       int clock;
+       u32 config;
+} hdmi_audio_clock[] = {
+       { DIV_ROUND_UP(25200 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_25175 },
+       { 25200, AUD_CONFIG_PIXEL_CLOCK_HDMI_25200 }, /* default per bspec */
+       { 27000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27000 },
+       { 27000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_27027 },
+       { 54000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54000 },
+       { 54000 * 1001 / 1000, AUD_CONFIG_PIXEL_CLOCK_HDMI_54054 },
+       { DIV_ROUND_UP(74250 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_74176 },
+       { 74250, AUD_CONFIG_PIXEL_CLOCK_HDMI_74250 },
+       { DIV_ROUND_UP(148500 * 1000, 1001), AUD_CONFIG_PIXEL_CLOCK_HDMI_148352 },
+       { 148500, AUD_CONFIG_PIXEL_CLOCK_HDMI_148500 },
+};
+
+/* get AUD_CONFIG_PIXEL_CLOCK_HDMI_* value for mode */
+static u32 audio_config_hdmi_pixel_clock(struct drm_display_mode *mode)
+{
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(hdmi_audio_clock); i++) {
+               if (mode->clock == hdmi_audio_clock[i].clock)
+                       break;
+       }
+
+       if (i == ARRAY_SIZE(hdmi_audio_clock)) {
+               DRM_DEBUG_KMS("HDMI audio pixel clock setting for %d not found, falling back to defaults\n", mode->clock);
+               i = 1;
+       }
+
+       DRM_DEBUG_KMS("Configuring HDMI audio for pixel clock %d (0x%08x)\n",
+                     hdmi_audio_clock[i].clock,
+                     hdmi_audio_clock[i].config);
+
+       return hdmi_audio_clock[i].config;
+}
+
 static bool intel_eld_uptodate(struct drm_connector *connector,
                               int reg_eldv, uint32_t bits_eldv,
                               int reg_elda, uint32_t bits_elda,
@@ -6738,7 +6822,8 @@ static bool intel_eld_uptodate(struct drm_connector *connector,
 }
 
 static void g4x_write_eld(struct drm_connector *connector,
-                         struct drm_crtc *crtc)
+                         struct drm_crtc *crtc,
+                         struct drm_display_mode *mode)
 {
        struct drm_i915_private *dev_priv = connector->dev->dev_private;
        uint8_t *eld = connector->eld;
@@ -6778,7 +6863,8 @@ static void g4x_write_eld(struct drm_connector *connector,
 }
 
 static void haswell_write_eld(struct drm_connector *connector,
-                                    struct drm_crtc *crtc)
+                             struct drm_crtc *crtc,
+                             struct drm_display_mode *mode)
 {
        struct drm_i915_private *dev_priv = connector->dev->dev_private;
        uint8_t *eld = connector->eld;
@@ -6831,8 +6917,9 @@ static void haswell_write_eld(struct drm_connector *connector,
                DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
                eld[5] |= (1 << 2);     /* Conn_Type, 0x1 = DisplayPort */
                I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
-       } else
-               I915_WRITE(aud_config, 0);
+       } else {
+               I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
+       }
 
        if (intel_eld_uptodate(connector,
                               aud_cntrl_st2, eldv,
@@ -6865,7 +6952,8 @@ static void haswell_write_eld(struct drm_connector *connector,
 }
 
 static void ironlake_write_eld(struct drm_connector *connector,
-                                    struct drm_crtc *crtc)
+                              struct drm_crtc *crtc,
+                              struct drm_display_mode *mode)
 {
        struct drm_i915_private *dev_priv = connector->dev->dev_private;
        uint8_t *eld = connector->eld;
@@ -6909,8 +6997,9 @@ static void ironlake_write_eld(struct drm_connector *connector,
                DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
                eld[5] |= (1 << 2);     /* Conn_Type, 0x1 = DisplayPort */
                I915_WRITE(aud_config, AUD_CONFIG_N_VALUE_INDEX); /* 0x1 = DP */
-       } else
-               I915_WRITE(aud_config, 0);
+       } else {
+               I915_WRITE(aud_config, audio_config_hdmi_pixel_clock(mode));
+       }
 
        if (intel_eld_uptodate(connector,
                               aud_cntrl_st2, eldv,
@@ -6960,7 +7049,7 @@ void intel_write_eld(struct drm_encoder *encoder,
        connector->eld[6] = drm_av_sync_delay(connector, mode) / 2;
 
        if (dev_priv->display.write_eld)
-               dev_priv->display.write_eld(connector, crtc);
+               dev_priv->display.write_eld(connector, crtc, mode);
 }
 
 static void i845_update_cursor(struct drm_crtc *crtc, u32 base)
@@ -7267,14 +7356,21 @@ intel_framebuffer_create(struct drm_device *dev,
                return ERR_PTR(-ENOMEM);
        }
 
+       ret = i915_mutex_lock_interruptible(dev);
+       if (ret)
+               goto err;
+
        ret = intel_framebuffer_init(dev, intel_fb, mode_cmd, obj);
-       if (ret) {
-               drm_gem_object_unreference_unlocked(&obj->base);
-               kfree(intel_fb);
-               return ERR_PTR(ret);
-       }
+       mutex_unlock(&dev->struct_mutex);
+       if (ret)
+               goto err;
 
        return &intel_fb->base;
+err:
+       drm_gem_object_unreference_unlocked(&obj->base);
+       kfree(intel_fb);
+
+       return ERR_PTR(ret);
 }
 
 static u32
@@ -7317,6 +7413,7 @@ static struct drm_framebuffer *
 mode_fits_in_fbdev(struct drm_device *dev,
                   struct drm_display_mode *mode)
 {
+#ifdef CONFIG_DRM_I915_FBDEV
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct drm_i915_gem_object *obj;
        struct drm_framebuffer *fb;
@@ -7337,6 +7434,9 @@ mode_fits_in_fbdev(struct drm_device *dev,
                return NULL;
 
        return fb;
+#else
+       return NULL;
+#endif
 }
 
 bool intel_get_load_detect_pipe(struct drm_connector *connector,
@@ -9862,7 +9962,13 @@ static void intel_setup_outputs(struct drm_device *dev)
                if (I915_READ(PCH_DP_D) & DP_DETECTED)
                        intel_dp_init(dev, PCH_DP_D, PORT_D);
        } else if (IS_VALLEYVIEW(dev)) {
-               /* Check for built-in panel first. Shares lanes with HDMI on SDVOC */
+               if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
+                       intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
+                                       PORT_B);
+                       if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
+                               intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
+               }
+
                if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIC) & SDVO_DETECTED) {
                        intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIC,
                                        PORT_C);
@@ -9871,13 +9977,6 @@ static void intel_setup_outputs(struct drm_device *dev)
                                              PORT_C);
                }
 
-               if (I915_READ(VLV_DISPLAY_BASE + GEN4_HDMIB) & SDVO_DETECTED) {
-                       intel_hdmi_init(dev, VLV_DISPLAY_BASE + GEN4_HDMIB,
-                                       PORT_B);
-                       if (I915_READ(VLV_DISPLAY_BASE + DP_B) & DP_DETECTED)
-                               intel_dp_init(dev, VLV_DISPLAY_BASE + DP_B, PORT_B);
-               }
-
                intel_dsi_init(dev);
        } else if (SUPPORTS_DIGITAL_OUTPUTS(dev)) {
                bool found = false;
@@ -9934,6 +10033,7 @@ static void intel_setup_outputs(struct drm_device *dev)
 void intel_framebuffer_fini(struct intel_framebuffer *fb)
 {
        drm_framebuffer_cleanup(&fb->base);
+       WARN_ON(!fb->obj->framebuffer_references--);
        drm_gem_object_unreference_unlocked(&fb->obj->base);
 }
 
@@ -9965,9 +10065,12 @@ int intel_framebuffer_init(struct drm_device *dev,
                           struct drm_mode_fb_cmd2 *mode_cmd,
                           struct drm_i915_gem_object *obj)
 {
+       int aligned_height, tile_height;
        int pitch_limit;
        int ret;
 
+       WARN_ON(!mutex_is_locked(&dev->struct_mutex));
+
        if (obj->tiling_mode == I915_TILING_Y) {
                DRM_DEBUG("hardware does not support tiling Y\n");
                return -EINVAL;
@@ -10056,8 +10159,16 @@ int intel_framebuffer_init(struct drm_device *dev,
        if (mode_cmd->offsets[0] != 0)
                return -EINVAL;
 
+       tile_height = IS_GEN2(dev) ? 16 : 8;
+       aligned_height = ALIGN(mode_cmd->height,
+                              obj->tiling_mode ? tile_height : 1);
+       /* FIXME drm helper for size checks (especially planar formats)? */
+       if (obj->base.size < aligned_height * mode_cmd->pitches[0])
+               return -EINVAL;
+
        drm_helper_mode_fill_fb_struct(&intel_fb->base, mode_cmd);
        intel_fb->obj = obj;
+       intel_fb->obj->framebuffer_references++;
 
        ret = drm_framebuffer_init(dev, &intel_fb->base, &intel_fb_funcs);
        if (ret) {
@@ -10083,9 +10194,15 @@ intel_user_framebuffer_create(struct drm_device *dev,
        return intel_framebuffer_create(dev, mode_cmd, obj);
 }
 
+#ifndef CONFIG_DRM_I915_FBDEV
+static inline void intel_fbdev_output_poll_changed(struct drm_device *dev)
+{
+}
+#endif
+
 static const struct drm_mode_config_funcs intel_mode_funcs = {
        .fb_create = intel_user_framebuffer_create,
-       .output_poll_changed = intel_fb_output_poll_changed,
+       .output_poll_changed = intel_fbdev_output_poll_changed,
 };
 
 /* Set up chip specific display functions */
@@ -10300,8 +10417,7 @@ static struct intel_quirk intel_quirks[] = {
        /* ThinkPad T60 needs pipe A force quirk (bug #16494) */
        { 0x2782, 0x17aa, 0x201a, quirk_pipea_force },
 
-       /* 830/845 need to leave pipe A & dpll A up */
-       { 0x2562, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
+       /* 830 needs to leave pipe A & dpll A up */
        { 0x3577, PCI_ANY_ID, PCI_ANY_ID, quirk_pipea_force },
 
        /* Lenovo U160 cannot use SSC on LVDS */
@@ -10643,7 +10759,7 @@ void i915_redisable_vga(struct drm_device *dev)
            (I915_READ(HSW_PWR_WELL_DRIVER) & HSW_PWR_WELL_STATE_ENABLED) == 0)
                return;
 
-       if (I915_READ(vga_reg) != VGA_DISP_DISABLE) {
+       if (!(I915_READ(vga_reg) & VGA_DISP_DISABLE)) {
                DRM_DEBUG_KMS("Something enabled VGA plane, disabling it\n");
                i915_disable_vga(dev);
        }
@@ -10666,6 +10782,7 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
                                                                 &crtc->config);
 
                crtc->base.enabled = crtc->active;
+               crtc->primary_enabled = crtc->active;
 
                DRM_DEBUG_KMS("[CRTC:%d] hw state readout: %s\n",
                              crtc->base.base.id,
@@ -10706,11 +10823,11 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
                }
 
                encoder->connectors_active = false;
-               DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe=%i\n",
+               DRM_DEBUG_KMS("[ENCODER:%d:%s] hw state readout: %s, pipe %c\n",
                              encoder->base.base.id,
                              drm_get_encoder_name(&encoder->base),
                              encoder->base.crtc ? "enabled" : "disabled",
-                             pipe);
+                             pipe_name(pipe));
        }
 
        list_for_each_entry(connector, &dev->mode_config.connector_list,
@@ -10783,6 +10900,9 @@ void intel_modeset_setup_hw_state(struct drm_device *dev,
                pll->on = false;
        }
 
+       if (IS_HASWELL(dev))
+               ilk_wm_get_hw_state(dev);
+
        if (force_restore) {
                i915_redisable_vga(dev);
 
@@ -11061,7 +11181,7 @@ intel_display_print_error_state(struct drm_i915_error_state_buf *m,
        }
 
        for (i = 0; i < error->num_transcoders; i++) {
-               err_printf(m, "  CPU transcoder: %c\n",
+               err_printf(m, "CPU transcoder: %c\n",
                           transcoder_name(error->transcoder[i].cpu_transcoder));
                err_printf(m, "  CONF: %08x\n", error->transcoder[i].conf);
                err_printf(m, "  HTOTAL: %08x\n", error->transcoder[i].htotal);