gralloc0_register_buffer: initialize gralloc0 when needed

[android-x86/external-minigbm.git] / mediatek.c

diff --git a/mediatek.c b/mediatek.c
index 3d2702f..1a1061c 100644 (file)
--- a/mediatek.c
+++ b/mediatek.c
@@ -18,6 +18,11 @@
 #include "helpers.h"
 #include "util.h"
 
+struct mediatek_private_map_data {
+       void *cached_addr;
+       void *gem_addr;
+};
+
 static const uint32_t render_target_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888,
                                                  DRM_FORMAT_RGB565, DRM_FORMAT_XBGR8888,
                                                  DRM_FORMAT_XRGB8888 };
@@ -42,7 +47,7 @@ static int mediatek_init(struct driver *drv)
 }
 
 static int mediatek_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
-                             uint32_t flags)
+                             uint64_t use_flags)
 {
        int ret;
        size_t plane;
@@ -73,10 +78,11 @@ static int mediatek_bo_create(struct bo *bo, uint32_t width, uint32_t height, ui
        return 0;
 }
 
-static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane, int prot)
+static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane, uint32_t map_flags)
 {
        int ret;
        struct drm_mtk_gem_map_off gem_map;
+       struct mediatek_private_map_data *priv;
 
        memset(&gem_map, 0, sizeof(gem_map));
        gem_map.handle = bo->handles[0].u32;
@@ -87,12 +93,46 @@ static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane,
                return MAP_FAILED;
        }
 
+       void *addr = mmap(0, bo->total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd,
+                         gem_map.offset);
+
        data->length = bo->total_size;
 
-       return mmap(0, bo->total_size, prot, MAP_SHARED, bo->drv->fd, gem_map.offset);
+       if (bo->use_flags & BO_USE_RENDERSCRIPT) {
+               priv = calloc(1, sizeof(*priv));
+               priv->cached_addr = calloc(1, bo->total_size);
+               priv->gem_addr = addr;
+               memcpy(priv->cached_addr, priv->gem_addr, bo->total_size);
+               data->priv = priv;
+               addr = priv->cached_addr;
+       }
+
+       return addr;
+}
+
+static int mediatek_bo_unmap(struct bo *bo, struct map_info *data)
+{
+       if (data->priv) {
+               struct mediatek_private_map_data *priv = data->priv;
+               data->addr = priv->gem_addr;
+               free(priv->cached_addr);
+               free(priv);
+               data->priv = NULL;
+       }
+
+       return munmap(data->addr, data->length);
+}
+
+static int mediatek_bo_flush(struct bo *bo, struct map_info *data)
+{
+       struct mediatek_private_map_data *priv = data->priv;
+       if (priv && (data->map_flags & BO_MAP_WRITE))
+               memcpy(priv->gem_addr, priv->cached_addr, bo->total_size);
+
+       return 0;
 }
 
-static uint32_t mediatek_resolve_format(uint32_t format, uint64_t usage)
+static uint32_t mediatek_resolve_format(uint32_t format, uint64_t use_flags)
 {
        switch (format) {
        case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
@@ -112,6 +152,8 @@ struct backend backend_mediatek = {
        .bo_destroy = drv_gem_bo_destroy,
        .bo_import = drv_prime_bo_import,
        .bo_map = mediatek_bo_map,
+       .bo_unmap = mediatek_bo_unmap,
+       .bo_flush = mediatek_bo_flush,
        .resolve_format = mediatek_resolve_format,
 };