drm/i915: save and restore dsparb and d_state registers.
Signed-off-by: Dave Airlie <airlied@redhat.com>
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a59e122a67
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2 changed files with 17 additions and 0 deletions
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@ -256,6 +256,9 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state)
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pci_save_state(dev->pdev);
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pci_read_config_byte(dev->pdev, LBB, &dev_priv->saveLBB);
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/* Display arbitration control */
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dev_priv->saveDSPARB = I915_READ(DSPARB);
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/* Pipe & plane A info */
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dev_priv->savePIPEACONF = I915_READ(PIPEACONF);
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dev_priv->savePIPEASRC = I915_READ(PIPEASRC);
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@ -349,6 +352,7 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state)
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dev_priv->saveVGACNTRL = I915_READ(VGACNTRL);
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/* Clock gating state */
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dev_priv->saveD_STATE = I915_READ(D_STATE);
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dev_priv->saveDSPCLK_GATE_D = I915_READ(DSPCLK_GATE_D);
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/* Cache mode state */
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@ -388,6 +392,8 @@ static int i915_resume(struct drm_device *dev)
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pci_write_config_byte(dev->pdev, LBB, dev_priv->saveLBB);
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I915_WRITE(DSPARB, dev_priv->saveDSPARB);
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/* Pipe & plane A info */
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/* Prime the clock */
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if (dev_priv->saveDPLL_A & DPLL_VCO_ENABLE) {
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@ -507,6 +513,7 @@ static int i915_resume(struct drm_device *dev)
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udelay(150);
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/* Clock gating state */
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I915_WRITE (D_STATE, dev_priv->saveD_STATE);
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I915_WRITE (DSPCLK_GATE_D, dev_priv->saveDSPCLK_GATE_D);
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/* Cache mode state */
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@ -119,6 +119,7 @@ typedef struct drm_i915_private {
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u8 saveLBB;
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u32 saveDSPACNTR;
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u32 saveDSPBCNTR;
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u32 saveDSPARB;
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u32 savePIPEACONF;
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u32 savePIPEBCONF;
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u32 savePIPEASRC;
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@ -188,6 +189,7 @@ typedef struct drm_i915_private {
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u32 saveIIR;
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u32 saveIMR;
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u32 saveCACHE_MODE_0;
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u32 saveD_STATE;
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u32 saveDSPCLK_GATE_D;
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u32 saveMI_ARB_STATE;
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u32 saveSWF0[16];
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@ -670,6 +672,8 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
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/** P1 value is 2 greater than this field */
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# define VGA0_PD_P1_MASK (0x1f << 0)
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/* PCI D state control register */
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#define D_STATE 0x6104
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#define DSPCLK_GATE_D 0x6200
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/* I830 CRTC registers */
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@ -980,6 +984,12 @@ extern int i915_wait_ring(struct drm_device * dev, int n, const char *caller);
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#define PIPECONF_INTERLACE_W_FIELD_INDICATION (6 << 21)
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#define PIPECONF_INTERLACE_FIELD_0_ONLY (7 << 21)
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#define DSPARB 0x70030
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#define DSPARB_CSTART_MASK (0x7f << 7)
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#define DSPARB_CSTART_SHIFT 7
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#define DSPARB_BSTART_MASK (0x7f)
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#define DSPARB_BSTART_SHIFT 0
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#define PIPEBCONF 0x71008
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#define PIPEBCONF_ENABLE (1<<31)
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#define PIPEBCONF_DISABLE 0
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