diff options
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_drv.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_fb.c | 43 | ||||
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_ttm.c | 4 |
3 files changed, 44 insertions, 5 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_drv.h b/drivers/gpu/drm/mgag200/mgag200_drv.h index dcfc973e29f7..bf29b2f4d68d 100644 --- a/drivers/gpu/drm/mgag200/mgag200_drv.h +++ b/drivers/gpu/drm/mgag200/mgag200_drv.h @@ -115,6 +115,8 @@ struct mga_fbdev { void *sysram; int size; struct ttm_bo_kmap_obj mapping; + int x1, y1, x2, y2; /* dirty rect */ + spinlock_t dirty_lock; }; struct mga_crtc { diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c index 421beabec45b..5da824ce9ba1 100644 --- a/drivers/gpu/drm/mgag200/mgag200_fb.c +++ b/drivers/gpu/drm/mgag200/mgag200_fb.c @@ -29,16 +29,52 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev, int bpp = (mfbdev->mfb.base.bits_per_pixel + 7)/8; int ret; bool unmap = false; + bool store_for_later = false; + int x2, y2; + unsigned long flags; obj = mfbdev->mfb.obj; bo = gem_to_mga_bo(obj); + /* + * try and reserve the BO, if we fail with busy + * then the BO is being moved and we should + * store up the damage until later. + */ ret = mgag200_bo_reserve(bo, true); if (ret) { - DRM_ERROR("failed to reserve fb bo\n"); + if (ret != -EBUSY) + return; + + store_for_later = true; + } + + x2 = x + width - 1; + y2 = y + height - 1; + spin_lock_irqsave(&mfbdev->dirty_lock, flags); + + if (mfbdev->y1 < y) + y = mfbdev->y1; + if (mfbdev->y2 > y2) + y2 = mfbdev->y2; + if (mfbdev->x1 < x) + x = mfbdev->x1; + if (mfbdev->x2 > x2) + x2 = mfbdev->x2; + + if (store_for_later) { + mfbdev->x1 = x; + mfbdev->x2 = x2; + mfbdev->y1 = y; + mfbdev->y2 = y2; + spin_unlock_irqrestore(&mfbdev->dirty_lock, flags); return; } + mfbdev->x1 = mfbdev->y1 = INT_MAX; + mfbdev->x2 = mfbdev->y2 = 0; + spin_unlock_irqrestore(&mfbdev->dirty_lock, flags); + if (!bo->kmap.virtual) { ret = ttm_bo_kmap(&bo->bo, 0, bo->bo.num_pages, &bo->kmap); if (ret) { @@ -48,10 +84,10 @@ static void mga_dirty_update(struct mga_fbdev *mfbdev, } unmap = true; } - for (i = y; i < y + height; i++) { + for (i = y; i <= y2; i++) { /* assume equal stride for now */ src_offset = dst_offset = i * mfbdev->mfb.base.pitches[0] + (x * bpp); - memcpy_toio(bo->kmap.virtual + src_offset, mfbdev->sysram + src_offset, width * bpp); + memcpy_toio(bo->kmap.virtual + src_offset, mfbdev->sysram + src_offset, (x2 - x + 1) * bpp); } if (unmap) @@ -252,6 +288,7 @@ int mgag200_fbdev_init(struct mga_device *mdev) mdev->mfbdev = mfbdev; mfbdev->helper.funcs = &mga_fb_helper_funcs; + spin_lock_init(&mfbdev->dirty_lock); ret = drm_fb_helper_init(mdev->dev, &mfbdev->helper, mdev->num_crtc, MGAG200FB_CONN_LIMIT); diff --git a/drivers/gpu/drm/mgag200/mgag200_ttm.c b/drivers/gpu/drm/mgag200/mgag200_ttm.c index 8fc9d9201945..401c9891d3a8 100644 --- a/drivers/gpu/drm/mgag200/mgag200_ttm.c +++ b/drivers/gpu/drm/mgag200/mgag200_ttm.c @@ -315,8 +315,8 @@ int mgag200_bo_reserve(struct mgag200_bo *bo, bool no_wait) ret = ttm_bo_reserve(&bo->bo, true, no_wait, false, 0); if (ret) { - if (ret != -ERESTARTSYS) - DRM_ERROR("reserve failed %p\n", bo); + if (ret != -ERESTARTSYS && ret != -EBUSY) + DRM_ERROR("reserve failed %p %d\n", bo, ret); return ret; } return 0; |