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author | Zhao Yakui <yakui.zhao@intel.com> | 2010-03-22 22:45:36 +0800 |
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committer | Eric Anholt <eric@anholt.net> | 2010-04-12 09:27:46 -0700 |
commit | d4294342fd4b94a3297867da00c1c5e929c28d4f (patch) | |
tree | e73174d08c90854f1f87d4b1a173122f8c631089 /drivers/gpu/drm/i915/intel_display.c | |
parent | a2c459ee9aa52a659611ec1f1b43bfde49017b23 (diff) | |
download | linux-3.10-d4294342fd4b94a3297867da00c1c5e929c28d4f.tar.gz linux-3.10-d4294342fd4b94a3297867da00c1c5e929c28d4f.tar.bz2 linux-3.10-d4294342fd4b94a3297867da00c1c5e929c28d4f.zip |
drm/i915: Move Pineview CxSR and watermark code into update_wm hook.
Previously, after setting up the Pineview CxSR state, i9xx_update_wm would
get called and overwrite our state.
BTW: We will disable the self-refresh and never enable it any more if we
can't find the appropriate the latency on pineview plaftorm. In such case
the update_wm callback will be NULL.
The bitmask macro is also defined to access the corresponding fifo
watermark register.
Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
-rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 153 |
1 files changed, 79 insertions, 74 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 32a24898786..e38c9068a04 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -2645,66 +2645,6 @@ static void pineview_disable_cxsr(struct drm_device *dev) DRM_INFO("Big FIFO is disabled\n"); } -static void pineview_enable_cxsr(struct drm_device *dev, unsigned long clock, - int pixel_size) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - u32 reg; - unsigned long wm; - struct cxsr_latency *latency; - - latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->fsb_freq, - dev_priv->mem_freq); - if (!latency) { - DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); - pineview_disable_cxsr(dev); - return; - } - - /* Display SR */ - wm = intel_calculate_wm(clock, &pineview_display_wm, pixel_size, - latency->display_sr); - reg = I915_READ(DSPFW1); - reg &= 0x7fffff; - reg |= wm << 23; - I915_WRITE(DSPFW1, reg); - DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); - - /* cursor SR */ - wm = intel_calculate_wm(clock, &pineview_cursor_wm, pixel_size, - latency->cursor_sr); - reg = I915_READ(DSPFW3); - reg &= ~(0x3f << 24); - reg |= (wm & 0x3f) << 24; - I915_WRITE(DSPFW3, reg); - - /* Display HPLL off SR */ - wm = intel_calculate_wm(clock, &pineview_display_hplloff_wm, - latency->display_hpll_disable, I915_FIFO_LINE_SIZE); - reg = I915_READ(DSPFW3); - reg &= 0xfffffe00; - reg |= wm & 0x1ff; - I915_WRITE(DSPFW3, reg); - - /* cursor HPLL off SR */ - wm = intel_calculate_wm(clock, &pineview_cursor_hplloff_wm, pixel_size, - latency->cursor_hpll_disable); - reg = I915_READ(DSPFW3); - reg &= ~(0x3f << 16); - reg |= (wm & 0x3f) << 16; - I915_WRITE(DSPFW3, reg); - DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); - - /* activate cxsr */ - reg = I915_READ(DSPFW3); - reg |= PINEVIEW_SELF_REFRESH_EN; - I915_WRITE(DSPFW3, reg); - - DRM_INFO("Big FIFO is enabled\n"); - - return; -} - /* * Latency for FIFO fetches is dependent on several factors: * - memory configuration (speed, channels) @@ -2789,6 +2729,71 @@ static int i830_get_fifo_size(struct drm_device *dev, int plane) return size; } +static void pineview_update_wm(struct drm_device *dev, int planea_clock, + int planeb_clock, int sr_hdisplay, int pixel_size) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + u32 reg; + unsigned long wm; + struct cxsr_latency *latency; + int sr_clock; + + latency = intel_get_cxsr_latency(IS_PINEVIEW_G(dev), dev_priv->fsb_freq, + dev_priv->mem_freq); + if (!latency) { + DRM_DEBUG_KMS("Unknown FSB/MEM found, disable CxSR\n"); + pineview_disable_cxsr(dev); + return; + } + + if (!planea_clock || !planeb_clock) { + sr_clock = planea_clock ? planea_clock : planeb_clock; + + /* Display SR */ + wm = intel_calculate_wm(sr_clock, &pineview_display_wm, + pixel_size, latency->display_sr); + reg = I915_READ(DSPFW1); + reg &= ~DSPFW_SR_MASK; + reg |= wm << DSPFW_SR_SHIFT; + I915_WRITE(DSPFW1, reg); + DRM_DEBUG_KMS("DSPFW1 register is %x\n", reg); + + /* cursor SR */ + wm = intel_calculate_wm(sr_clock, &pineview_cursor_wm, + pixel_size, latency->cursor_sr); + reg = I915_READ(DSPFW3); + reg &= ~DSPFW_CURSOR_SR_MASK; + reg |= (wm & 0x3f) << DSPFW_CURSOR_SR_SHIFT; + I915_WRITE(DSPFW3, reg); + + /* Display HPLL off SR */ + wm = intel_calculate_wm(sr_clock, &pineview_display_hplloff_wm, + pixel_size, latency->display_hpll_disable); + reg = I915_READ(DSPFW3); + reg &= ~DSPFW_HPLL_SR_MASK; + reg |= wm & DSPFW_HPLL_SR_MASK; + I915_WRITE(DSPFW3, reg); + + /* cursor HPLL off SR */ + wm = intel_calculate_wm(sr_clock, &pineview_cursor_hplloff_wm, + pixel_size, latency->cursor_hpll_disable); + reg = I915_READ(DSPFW3); + reg &= ~DSPFW_HPLL_CURSOR_MASK; + reg |= (wm & 0x3f) << DSPFW_HPLL_CURSOR_SHIFT; + I915_WRITE(DSPFW3, reg); + DRM_DEBUG_KMS("DSPFW3 register is %x\n", reg); + + /* activate cxsr */ + reg = I915_READ(DSPFW3); + reg |= PINEVIEW_SELF_REFRESH_EN; + I915_WRITE(DSPFW3, reg); + DRM_DEBUG_KMS("Self-refresh is enabled\n"); + } else { + pineview_disable_cxsr(dev); + DRM_DEBUG_KMS("Self-refresh is disabled\n"); + } +} + static void g4x_update_wm(struct drm_device *dev, int planea_clock, int planeb_clock, int sr_hdisplay, int pixel_size) { @@ -3078,12 +3083,6 @@ static void intel_update_watermarks(struct drm_device *dev) if (enabled <= 0) return; - /* Single plane configs can enable self refresh */ - if (enabled == 1 && IS_PINEVIEW(dev)) - pineview_enable_cxsr(dev, sr_clock, pixel_size); - else if (IS_PINEVIEW(dev)) - pineview_disable_cxsr(dev); - dev_priv->display.update_wm(dev, planea_clock, planeb_clock, sr_hdisplay, pixel_size); } @@ -5091,7 +5090,20 @@ static void intel_init_display(struct drm_device *dev) /* For FIFO watermark updates */ if (HAS_PCH_SPLIT(dev)) dev_priv->display.update_wm = NULL; - else if (IS_G4X(dev)) + else if (IS_PINEVIEW(dev)) { + if (!intel_get_cxsr_latency(IS_PINEVIEW_G(dev), + dev_priv->fsb_freq, + dev_priv->mem_freq)) { + DRM_INFO("failed to find known CxSR latency " + "(found fsb freq %d, mem freq %d), " + "disabling CxSR\n", + dev_priv->fsb_freq, dev_priv->mem_freq); + /* Disable CxSR and never update its watermark again */ + pineview_disable_cxsr(dev); + dev_priv->display.update_wm = NULL; + } else + dev_priv->display.update_wm = pineview_update_wm; + } else if (IS_G4X(dev)) dev_priv->display.update_wm = g4x_update_wm; else if (IS_I965G(dev)) dev_priv->display.update_wm = i965_update_wm; @@ -5164,13 +5176,6 @@ void intel_modeset_init(struct drm_device *dev) (unsigned long)dev); intel_setup_overlay(dev); - - if (IS_PINEVIEW(dev) && !intel_get_cxsr_latency(IS_PINEVIEW_G(dev), - dev_priv->fsb_freq, - dev_priv->mem_freq)) - DRM_INFO("failed to find known CxSR latency " - "(found fsb freq %d, mem freq %d), disabling CxSR\n", - dev_priv->fsb_freq, dev_priv->mem_freq); } void intel_modeset_cleanup(struct drm_device *dev) |