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drm/i915: Save/restore cursor state on suspend/resume.

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This may fix cursor corruption in X on resume, which would persist until
the cursor was hidden and then shown again.

V2: Also include the cursor control regs.

Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
This commit is contained in:
Eric Anholt 2009-06-03 07:26:58 +00:00
parent 0e7ddf7eee
commit 1fd1c62436
2 changed files with 28 additions and 0 deletions
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8
drivers/gpu/drm/i915/i915_drv.h
View File

@ -285,6 +285,13 @@ typedef struct drm_i915_private {
u8 saveDACMASK;
u8 saveCR[37];
uint64_t saveFENCE[16];
u32 saveCURACNTR;
u32 saveCURAPOS;
u32 saveCURABASE;
u32 saveCURBCNTR;
u32 saveCURBPOS;
u32 saveCURBBASE;
u32 saveCURSIZE;
struct {
struct drm_mm gtt_space;
@ -642,6 +649,7 @@ void i915_gem_detach_phys_object(struct drm_device *dev,
void i915_gem_free_all_phys_object(struct drm_device *dev);
int i915_gem_object_get_pages(struct drm_gem_object *obj);
void i915_gem_object_put_pages(struct drm_gem_object *obj);
void i915_gem_release(struct drm_device * dev, struct drm_file *file_priv);
/* i915_gem_tiling.c */
void i915_gem_detect_bit_6_swizzle(struct drm_device *dev);

20
drivers/gpu/drm/i915/i915_suspend.c
View File

@ -295,6 +295,16 @@ int i915_save_state(struct drm_device *dev)
i915_save_palette(dev, PIPE_B);
dev_priv->savePIPEBSTAT = I915_READ(PIPEBSTAT);
/* Cursor state */
dev_priv->saveCURACNTR = I915_READ(CURACNTR);
dev_priv->saveCURAPOS = I915_READ(CURAPOS);
dev_priv->saveCURABASE = I915_READ(CURABASE);
dev_priv->saveCURBCNTR = I915_READ(CURBCNTR);
dev_priv->saveCURBPOS = I915_READ(CURBPOS);
dev_priv->saveCURBBASE = I915_READ(CURBBASE);
if (!IS_I9XX(dev))
dev_priv->saveCURSIZE = I915_READ(CURSIZE);
/* CRT state */
dev_priv->saveADPA = I915_READ(ADPA);
@ -480,6 +490,16 @@ int i915_restore_state(struct drm_device *dev)
I915_WRITE(DSPBCNTR, dev_priv->saveDSPBCNTR);
I915_WRITE(DSPBADDR, I915_READ(DSPBADDR));
/* Cursor state */
I915_WRITE(CURAPOS, dev_priv->saveCURAPOS);
I915_WRITE(CURACNTR, dev_priv->saveCURACNTR);
I915_WRITE(CURABASE, dev_priv->saveCURABASE);
I915_WRITE(CURBPOS, dev_priv->saveCURBPOS);
I915_WRITE(CURBCNTR, dev_priv->saveCURBCNTR);
I915_WRITE(CURBBASE, dev_priv->saveCURBBASE);
if (!IS_I9XX(dev))
I915_WRITE(CURSIZE, dev_priv->saveCURSIZE);
/* CRT state */
I915_WRITE(ADPA, dev_priv->saveADPA);