diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_fb.c')
| -rw-r--r-- | drivers/gpu/drm/msm/msm_fb.c | 66 |
1 files changed, 56 insertions, 10 deletions
diff --git a/drivers/gpu/drm/msm/msm_fb.c b/drivers/gpu/drm/msm/msm_fb.c index 5cf165c9c3a9..fc175e724ad6 100644 --- a/drivers/gpu/drm/msm/msm_fb.c +++ b/drivers/gpu/drm/msm/msm_fb.c @@ -15,11 +15,12 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <drm/drm_crtc.h> +#include <drm/drm_crtc_helper.h> + #include "msm_drv.h" #include "msm_kms.h" - -#include "drm_crtc.h" -#include "drm_crtc_helper.h" +#include "msm_gem.h" struct msm_framebuffer { struct drm_framebuffer base; @@ -28,6 +29,8 @@ struct msm_framebuffer { }; #define to_msm_framebuffer(x) container_of(x, struct msm_framebuffer, base) +static struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev, + const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos); static int msm_framebuffer_create_handle(struct drm_framebuffer *fb, struct drm_file *file_priv, @@ -84,14 +87,15 @@ void msm_framebuffer_describe(struct drm_framebuffer *fb, struct seq_file *m) * should be fine, since only the scanout (mdpN) side of things needs * this, the gpu doesn't care about fb's. */ -int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id) +int msm_framebuffer_prepare(struct drm_framebuffer *fb, + struct msm_gem_address_space *aspace) { struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb); int ret, i, n = fb->format->num_planes; uint64_t iova; for (i = 0; i < n; i++) { - ret = msm_gem_get_iova(msm_fb->planes[i], id, &iova); + ret = msm_gem_get_iova(msm_fb->planes[i], aspace, &iova); DBG("FB[%u]: iova[%d]: %08llx (%d)", fb->base.id, i, iova, ret); if (ret) return ret; @@ -100,21 +104,23 @@ int msm_framebuffer_prepare(struct drm_framebuffer *fb, int id) return 0; } -void msm_framebuffer_cleanup(struct drm_framebuffer *fb, int id) +void msm_framebuffer_cleanup(struct drm_framebuffer *fb, + struct msm_gem_address_space *aspace) { struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb); int i, n = fb->format->num_planes; for (i = 0; i < n; i++) - msm_gem_put_iova(msm_fb->planes[i], id); + msm_gem_put_iova(msm_fb->planes[i], aspace); } -uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, int id, int plane) +uint32_t msm_framebuffer_iova(struct drm_framebuffer *fb, + struct msm_gem_address_space *aspace, int plane) { struct msm_framebuffer *msm_fb = to_msm_framebuffer(fb); if (!msm_fb->planes[plane]) return 0; - return msm_gem_iova(msm_fb->planes[plane], id) + fb->offsets[plane]; + return msm_gem_iova(msm_fb->planes[plane], aspace) + fb->offsets[plane]; } struct drm_gem_object *msm_framebuffer_bo(struct drm_framebuffer *fb, int plane) @@ -158,7 +164,7 @@ out_unref: return ERR_PTR(ret); } -struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev, +static struct drm_framebuffer *msm_framebuffer_init(struct drm_device *dev, const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object **bos) { struct msm_drm_private *priv = dev->dev_private; @@ -234,3 +240,43 @@ fail: return ERR_PTR(ret); } + +struct drm_framebuffer * +msm_alloc_stolen_fb(struct drm_device *dev, int w, int h, int p, uint32_t format) +{ + struct drm_mode_fb_cmd2 mode_cmd = { + .pixel_format = format, + .width = w, + .height = h, + .pitches = { p }, + }; + struct drm_gem_object *bo; + struct drm_framebuffer *fb; + int size; + + /* allocate backing bo */ + size = mode_cmd.pitches[0] * mode_cmd.height; + DBG("allocating %d bytes for fb %d", size, dev->primary->index); + bo = msm_gem_new(dev, size, MSM_BO_SCANOUT | MSM_BO_WC | MSM_BO_STOLEN); + if (IS_ERR(bo)) { + dev_warn(dev->dev, "could not allocate stolen bo\n"); + /* try regular bo: */ + bo = msm_gem_new(dev, size, MSM_BO_SCANOUT | MSM_BO_WC); + } + if (IS_ERR(bo)) { + dev_err(dev->dev, "failed to allocate buffer object\n"); + return ERR_CAST(bo); + } + + fb = msm_framebuffer_init(dev, &mode_cmd, &bo); + if (IS_ERR(fb)) { + dev_err(dev->dev, "failed to allocate fb\n"); + /* note: if fb creation failed, we can't rely on fb destroy + * to unref the bo: + */ + drm_gem_object_unreference_unlocked(bo); + return ERR_CAST(fb); + } + + return fb; +} |