diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_fb.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_fb.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c index 7137492fe78e..4269da268a4a 100644 --- a/drivers/gpu/drm/msm/msm_fb.c +++ b/drivers/gpu/drm/msm/msm_fb.c @@ -21,6 +21,10 @@ struct msm_framebuffer { /* Count of # of attached planes which need dirtyfb: */ refcount_t dirtyfb; + + /* Framebuffer per-plane address, if pinned, else zero: */ + uint64_t iova[DRM_FORMAT_MAX_PLANES]; + atomic_t prepare_count; }; #define to_msm_framebuffer(x) container_of(x, struct msm_framebuffer, base) @@ -76,14 +80,16 @@ int msm_framebuffer_prepare(struct drm_framebuffer *fb, { struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb); int ret, i, n = fb->format->num_planes; - uint64_t iova; if (needs_dirtyfb) refcount_inc(&msm_fb->dirtyfb); + atomic_inc(&msm_fb->prepare_count); + for (i = 0; i < n; i++) { - ret = msm_gem_get_and_pin_iova(fb->obj[i], aspace, &iova); - drm_dbg_state(fb->dev, "FB[%u]: iova[%d]: %08llx (%d)", fb->base.id, i, iova, ret); + ret = msm_gem_get_and_pin_iova(fb->obj[i], aspace, &msm_fb->iova[i]); + drm_dbg_state(fb->dev, "FB[%u]: iova[%d]: %08llx (%d)", + fb->base.id, i, msm_fb->iova[i], ret); if (ret) return ret; } @@ -103,14 +109,16 @@ void msm_framebuffer_cleanup(struct drm_framebuffer *fb, for (i = 0; i < n; i++) msm_gem_unpin_iova(fb->obj[i], aspace); + + if (!atomic_dec_return(&msm_fb->prepare_count)) + memset(msm_fb->iova, 0, sizeof(msm_fb->iova)); } uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, struct msm_gem_address_space *aspace, int plane) { - if (!fb->obj[plane]) - return 0; - return msm_gem_iova(fb->obj[plane], aspace) + fb->offsets[plane]; + struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb); + return msm_fb->iova[plane] + fb->offsets[plane]; } struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane) |