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drm/i915: Pin cursor bo and unpin old bo when setting cursor. 

We also didn't track the cursor bo before and would leak a reference
when the cursor image was change.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
This commit is contained in:
Kristian Høgsberg 2008-12-17 22:14:59 -05:00 committed by Dave Airlie
parent 9bb2d6f94a
commit 3f8bc370ac
2 changed files with 22 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/gpu/drm/i915/intel_display.c
View File

@ -986,19 +986,17 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
uint32_t base = (pipe == 0) ? CURABASE : CURBBASE;
uint32_t temp;
size_t addr;
int ret;
DRM_DEBUG("\n");
/* if we want to turn off the cursor ignore width and height */
if (!handle) {
DRM_DEBUG("cursor off\n");
/* turn of the cursor */
temp = 0;
temp |= CURSOR_MODE_DISABLE;
I915_WRITE(control, temp);
I915_WRITE(base, 0);
return 0;
temp = CURSOR_MODE_DISABLE;
addr = 0;
bo = NULL;
goto finish;
}
/* Currently we only support 64x64 cursors */
@ -1025,15 +1023,30 @@ static int intel_crtc_cursor_set(struct drm_crtc *crtc,
addr = obj_priv->gtt_offset;
}
intel_crtc->cursor_addr = addr;
ret = i915_gem_object_pin(bo, PAGE_SIZE);
if (ret) {
DRM_ERROR("failed to pin cursor bo\n");
drm_gem_object_unreference(bo);
return ret;
}
temp = 0;
/* set the pipe for the cursor */
temp |= (pipe << 28);
temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
finish:
I915_WRITE(control, temp);
I915_WRITE(base, addr);
if (intel_crtc->cursor_bo) {
i915_gem_object_unpin(intel_crtc->cursor_bo);
drm_gem_object_unreference(intel_crtc->cursor_bo);
}
intel_crtc->cursor_addr = addr;
intel_crtc->cursor_bo = bo;
return 0;
}

1
drivers/gpu/drm/i915/intel_drv.h
View File

@ -88,6 +88,7 @@ struct intel_crtc {
struct drm_crtc base;
int pipe;
int plane;
struct drm_gem_object *cursor_bo;
uint32_t cursor_addr;
u8 lut_r[256], lut_g[256], lut_b[256];
int dpms_mode;