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path: root/drivers/gpu/drm/i915/intel_display.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r--drivers/gpu/drm/i915/intel_display.c161
1 files changed, 86 insertions, 75 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index bbdd72909a1..65b635ce28c 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -90,12 +90,12 @@ typedef struct {
#define I9XX_DOT_MAX 400000
#define I9XX_VCO_MIN 1400000
#define I9XX_VCO_MAX 2800000
-#define I9XX_N_MIN 3
-#define I9XX_N_MAX 8
+#define I9XX_N_MIN 1
+#define I9XX_N_MAX 6
#define I9XX_M_MIN 70
#define I9XX_M_MAX 120
#define I9XX_M1_MIN 10
-#define I9XX_M1_MAX 20
+#define I9XX_M1_MAX 22
#define I9XX_M2_MIN 5
#define I9XX_M2_MAX 9
#define I9XX_P_SDVO_DAC_MIN 5
@@ -189,9 +189,7 @@ static const intel_limit_t *intel_limit(struct drm_crtc *crtc)
return limit;
}
-/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
-
-static void i8xx_clock(int refclk, intel_clock_t *clock)
+static void intel_clock(int refclk, intel_clock_t *clock)
{
clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
clock->p = clock->p1 * clock->p2;
@@ -199,25 +197,6 @@ static void i8xx_clock(int refclk, intel_clock_t *clock)
clock->dot = clock->vco / clock->p;
}
-/** Derive the pixel clock for the given refclk and divisors for 9xx chips. */
-
-static void i9xx_clock(int refclk, intel_clock_t *clock)
-{
- clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
- clock->p = clock->p1 * clock->p2;
- clock->vco = refclk * clock->m / (clock->n + 2);
- clock->dot = clock->vco / clock->p;
-}
-
-static void intel_clock(struct drm_device *dev, int refclk,
- intel_clock_t *clock)
-{
- if (IS_I9XX(dev))
- i9xx_clock (refclk, clock);
- else
- i8xx_clock (refclk, clock);
-}
-
/**
* Returns whether any output on the specified pipe is of the specified type
*/
@@ -238,7 +217,7 @@ bool intel_pipe_has_type (struct drm_crtc *crtc, int type)
return false;
}
-#define INTELPllInvalid(s) { /* ErrorF (s) */; return false; }
+#define INTELPllInvalid(s) do { DRM_DEBUG(s); return false; } while (0)
/**
* Returns whether the given set of divisors are valid for a given refclk with
* the given connectors.
@@ -318,7 +297,7 @@ static bool intel_find_best_PLL(struct drm_crtc *crtc, int target,
clock.p1 <= limit->p1.max; clock.p1++) {
int this_err;
- intel_clock(dev, refclk, &clock);
+ intel_clock(refclk, &clock);
if (!intel_PLL_is_valid(crtc, &clock))
continue;
@@ -343,7 +322,7 @@ intel_wait_for_vblank(struct drm_device *dev)
udelay(20000);
}
-static void
+static int
intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
struct drm_framebuffer *old_fb)
{
@@ -361,11 +340,21 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
u32 dspcntr, alignment;
+ int ret;
/* no fb bound */
if (!crtc->fb) {
DRM_DEBUG("No FB bound\n");
- return;
+ return 0;
+ }
+
+ switch (pipe) {
+ case 0:
+ case 1:
+ break;
+ default:
+ DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);
+ return -EINVAL;
}
intel_fb = to_intel_framebuffer(crtc->fb);
@@ -377,28 +366,30 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
alignment = 64 * 1024;
break;
case I915_TILING_X:
- if (IS_I9XX(dev))
- alignment = 1024 * 1024;
- else
- alignment = 512 * 1024;
+ /* pin() will align the object as required by fence */
+ alignment = 0;
break;
case I915_TILING_Y:
/* FIXME: Is this true? */
DRM_ERROR("Y tiled not allowed for scan out buffers\n");
- return;
+ return -EINVAL;
default:
BUG();
}
- if (i915_gem_object_pin(intel_fb->obj, alignment))
- return;
-
- i915_gem_object_set_to_gtt_domain(intel_fb->obj, 1);
-
- Start = obj_priv->gtt_offset;
- Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+ mutex_lock(&dev->struct_mutex);
+ ret = i915_gem_object_pin(intel_fb->obj, alignment);
+ if (ret != 0) {
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
- I915_WRITE(dspstride, crtc->fb->pitch);
+ ret = i915_gem_object_set_to_gtt_domain(intel_fb->obj, 1);
+ if (ret != 0) {
+ i915_gem_object_unpin(intel_fb->obj);
+ mutex_unlock(&dev->struct_mutex);
+ return ret;
+ }
dspcntr = I915_READ(dspcntr_reg);
/* Mask out pixel format bits in case we change it */
@@ -419,11 +410,17 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
break;
default:
DRM_ERROR("Unknown color depth\n");
- return;
+ i915_gem_object_unpin(intel_fb->obj);
+ mutex_unlock(&dev->struct_mutex);
+ return -EINVAL;
}
I915_WRITE(dspcntr_reg, dspcntr);
+ Start = obj_priv->gtt_offset;
+ Offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+
DRM_DEBUG("Writing base %08lX %08lX %d %d\n", Start, Offset, x, y);
+ I915_WRITE(dspstride, crtc->fb->pitch);
if (IS_I965G(dev)) {
I915_WRITE(dspbase, Offset);
I915_READ(dspbase);
@@ -440,27 +437,24 @@ intel_pipe_set_base(struct drm_crtc *crtc, int x, int y,
intel_fb = to_intel_framebuffer(old_fb);
i915_gem_object_unpin(intel_fb->obj);
}
+ mutex_unlock(&dev->struct_mutex);
if (!dev->primary->master)
- return;
+ return 0;
master_priv = dev->primary->master->driver_priv;
if (!master_priv->sarea_priv)
- return;
+ return 0;
- switch (pipe) {
- case 0:
- master_priv->sarea_priv->pipeA_x = x;
- master_priv->sarea_priv->pipeA_y = y;
- break;
- case 1:
+ if (pipe) {
master_priv->sarea_priv->pipeB_x = x;
master_priv->sarea_priv->pipeB_y = y;
- break;
- default:
- DRM_ERROR("Can't update pipe %d in SAREA\n", pipe);
- break;
+ } else {
+ master_priv->sarea_priv->pipeA_x = x;
+ master_priv->sarea_priv->pipeA_y = y;
}
+
+ return 0;
}
@@ -708,11 +702,11 @@ static int intel_panel_fitter_pipe (struct drm_device *dev)
return 1;
}
-static void intel_crtc_mode_set(struct drm_crtc *crtc,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode,
- int x, int y,
- struct drm_framebuffer *old_fb)
+static int intel_crtc_mode_set(struct drm_crtc *crtc,
+ struct drm_display_mode *mode,
+ struct drm_display_mode *adjusted_mode,
+ int x, int y,
+ struct drm_framebuffer *old_fb)
{
struct drm_device *dev = crtc->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
@@ -732,13 +726,14 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE;
int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS;
int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
- int refclk;
+ int refclk, num_outputs = 0;
intel_clock_t clock;
u32 dpll = 0, fp = 0, dspcntr, pipeconf;
bool ok, is_sdvo = false, is_dvo = false;
bool is_crt = false, is_lvds = false, is_tv = false;
struct drm_mode_config *mode_config = &dev->mode_config;
struct drm_connector *connector;
+ int ret;
drm_vblank_pre_modeset(dev, pipe);
@@ -768,9 +763,14 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
is_crt = true;
break;
}
+
+ num_outputs++;
}
- if (IS_I9XX(dev)) {
+ if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2) {
+ refclk = dev_priv->lvds_ssc_freq * 1000;
+ DRM_DEBUG("using SSC reference clock of %d MHz\n", refclk / 1000);
+ } else if (IS_I9XX(dev)) {
refclk = 96000;
} else {
refclk = 48000;
@@ -779,7 +779,7 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
ok = intel_find_best_PLL(crtc, adjusted_mode->clock, refclk, &clock);
if (!ok) {
DRM_ERROR("Couldn't find PLL settings for mode!\n");
- return;
+ return -EINVAL;
}
fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
@@ -829,11 +829,14 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
}
}
- if (is_tv) {
+ if (is_sdvo && is_tv)
+ dpll |= PLL_REF_INPUT_TVCLKINBC;
+ else if (is_tv)
/* XXX: just matching BIOS for now */
-/* dpll |= PLL_REF_INPUT_TVCLKINBC; */
+ /* dpll |= PLL_REF_INPUT_TVCLKINBC; */
dpll |= 3;
- }
+ else if (is_lvds && dev_priv->lvds_use_ssc && num_outputs < 2)
+ dpll |= PLLB_REF_INPUT_SPREADSPECTRUMIN;
else
dpll |= PLL_REF_INPUT_DREFCLK;
@@ -950,9 +953,13 @@ static void intel_crtc_mode_set(struct drm_crtc *crtc,
I915_WRITE(dspcntr_reg, dspcntr);
/* Flush the plane changes */
- intel_pipe_set_base(crtc, x, y, old_fb);
+ ret = intel_pipe_set_base(crtc, x, y, old_fb);
+ if (ret != 0)
+ return ret;
drm_vblank_post_modeset(dev, pipe);
+
+ return 0;
}
/** Loads the palette/gamma unit for the CRTC with the prepared values */
@@ -1001,6 +1008,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
temp = CURSOR_MODE_DISABLE;
addr = 0;
bo = NULL;
+ mutex_lock(&dev->struct_mutex);
goto finish;
}
@@ -1023,18 +1031,19 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
}
/* we only need to pin inside GTT if cursor is non-phy */
+ mutex_lock(&dev->struct_mutex);
if (!dev_priv->cursor_needs_physical) {
ret = i915_gem_object_pin(bo, PAGE_SIZE);
if (ret) {
DRM_ERROR("failed to pin cursor bo\n");
- goto fail;
+ goto fail_locked;
}
addr = obj_priv->gtt_offset;
} else {
ret = i915_gem_attach_phys_object(dev, bo, (pipe == 0) ? I915_GEM_PHYS_CURSOR_0 : I915_GEM_PHYS_CURSOR_1);
if (ret) {
DRM_ERROR("failed to attach phys object\n");
- goto fail;
+ goto fail_locked;
}
addr = obj_priv->phys_obj->handle->busaddr;
}
@@ -1054,10 +1063,9 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
i915_gem_detach_phys_object(dev, intel_crtc->cursor_bo);
} else
i915_gem_object_unpin(intel_crtc->cursor_bo);
- mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(intel_crtc->cursor_bo);
- mutex_unlock(&dev->struct_mutex);
}
+ mutex_unlock(&dev->struct_mutex);
intel_crtc->cursor_addr = addr;
intel_crtc->cursor_bo = bo;
@@ -1065,6 +1073,7 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
return 0;
fail:
mutex_lock(&dev->struct_mutex);
+fail_locked:
drm_gem_object_unreference(bo);
mutex_unlock(&dev->struct_mutex);
return ret;
@@ -1292,7 +1301,7 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
}
/* XXX: Handle the 100Mhz refclk */
- i9xx_clock(96000, &clock);
+ intel_clock(96000, &clock);
} else {
bool is_lvds = (pipe == 1) && (I915_READ(LVDS) & LVDS_PORT_EN);
@@ -1304,9 +1313,9 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
if ((dpll & PLL_REF_INPUT_MASK) ==
PLLB_REF_INPUT_SPREADSPECTRUMIN) {
/* XXX: might not be 66MHz */
- i8xx_clock(66000, &clock);
+ intel_clock(66000, &clock);
} else
- i8xx_clock(48000, &clock);
+ intel_clock(48000, &clock);
} else {
if (dpll & PLL_P1_DIVIDE_BY_TWO)
clock.p1 = 2;
@@ -1319,7 +1328,7 @@ static int intel_crtc_clock_get(struct drm_device *dev, struct drm_crtc *crtc)
else
clock.p2 = 2;
- i8xx_clock(48000, &clock);
+ intel_clock(48000, &clock);
}
}
@@ -1598,7 +1607,9 @@ intel_user_framebuffer_create(struct drm_device *dev,
ret = intel_framebuffer_create(dev, mode_cmd, &fb, obj);
if (ret) {
+ mutex_lock(&dev->struct_mutex);
drm_gem_object_unreference(obj);
+ mutex_unlock(&dev->struct_mutex);
return NULL;
}