* found in the LICENSE file.
*/
-#ifdef GBM_MEDIATEK
+#ifdef DRV_MEDIATEK
+// clang-format off
#include <stdio.h>
#include <string.h>
+#include <sys/mman.h>
#include <xf86drm.h>
#include <mediatek_drm.h>
-#include <stdio.h>
-#include "gbm_priv.h"
+// clang-format on
+
+#include "drv_priv.h"
#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 };
+
+static const uint32_t texture_source_formats[] = { DRM_FORMAT_R8, DRM_FORMAT_YVU420,
+ DRM_FORMAT_YVU420_ANDROID };
-static int gbm_mediatek_bo_create(struct gbm_bo *bo,
- uint32_t width, uint32_t height,
- uint32_t format, uint32_t flags)
+static int mediatek_init(struct driver *drv)
+{
+ int ret;
+ ret = drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats),
+ &LINEAR_METADATA, BO_USE_RENDER_MASK);
+ if (ret)
+ return ret;
+
+ ret = drv_add_combinations(drv, texture_source_formats, ARRAY_SIZE(texture_source_formats),
+ &LINEAR_METADATA, BO_USE_TEXTURE_MASK);
+ if (ret)
+ return ret;
+
+ return drv_modify_linear_combinations(drv);
+}
+
+static int mediatek_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format,
+ uint64_t use_flags)
{
- size_t size;
- struct drm_mtk_gem_create gem_create;
int ret;
+ size_t plane;
+ uint32_t stride;
+ struct drm_mtk_gem_create gem_create;
- bo->strides[0] = gbm_stride_from_format(format, width);
- size = height * bo->strides[0];
+ /*
+ * Since the ARM L1 cache line size is 64 bytes, align to that as a
+ * performance optimization.
+ */
+ stride = drv_stride_from_format(format, width, 0);
+ stride = ALIGN(stride, 64);
+ drv_bo_from_format(bo, stride, height, format);
memset(&gem_create, 0, sizeof(gem_create));
- gem_create.size = size;
+ gem_create.size = bo->total_size;
- ret = drmIoctl(bo->gbm->fd, DRM_IOCTL_MTK_GEM_CREATE, &gem_create);
+ ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MTK_GEM_CREATE, &gem_create);
if (ret) {
- fprintf(stderr, "minigbm: DRM_IOCTL_MTK_GEM_CREATE failed "
- "(size=%zu)\n", size);
+ fprintf(stderr, "drv: DRM_IOCTL_MTK_GEM_CREATE failed (size=%llu)\n",
+ gem_create.size);
return ret;
}
- bo->handles[0].u32 = gem_create.handle;
- bo->sizes[0] = size;
- bo->offsets[0] = 0;
+ for (plane = 0; plane < bo->num_planes; plane++)
+ bo->handles[plane].u32 = gem_create.handle;
return 0;
}
-const struct gbm_driver gbm_driver_mediatek =
+static void *mediatek_bo_map(struct bo *bo, struct map_info *data, size_t plane, uint32_t map_flags)
{
- .name = "mediatek",
- .bo_create = gbm_mediatek_bo_create,
- .bo_destroy = gbm_gem_bo_destroy,
- .format_list = {
- {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE},
- {GBM_FORMAT_XRGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE | GBM_BO_USE_LINEAR},
- {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_RENDERING | GBM_BO_USE_WRITE},
- {GBM_FORMAT_ARGB8888, GBM_BO_USE_SCANOUT | GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE | GBM_BO_USE_LINEAR},
+ 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;
+
+ ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MTK_GEM_MAP_OFFSET, &gem_map);
+ if (ret) {
+ fprintf(stderr, "drv: DRM_IOCTL_MTK_GEM_MAP_OFFSET failed\n");
+ 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;
+
+ 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 use_flags)
+{
+ switch (format) {
+ case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
+ /*HACK: See b/28671744 */
+ return DRM_FORMAT_XBGR8888;
+ case DRM_FORMAT_FLEX_YCbCr_420_888:
+ return DRM_FORMAT_YVU420;
+ default:
+ return format;
+ }
+}
+
+struct backend backend_mediatek = {
+ .name = "mediatek",
+ .init = mediatek_init,
+ .bo_create = mediatek_bo_create,
+ .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,
};
#endif
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