| /* |
| * Copyright 2015 The Chromium OS Authors. All rights reserved. |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifdef DRV_MEDIATEK |
| |
| // clang-format off |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <inttypes.h> |
| #include <poll.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <sys/mman.h> |
| #include <unistd.h> |
| #include <xf86drm.h> |
| #include <mediatek_drm.h> |
| // clang-format on |
| |
| #include "drv_helpers.h" |
| #include "drv_priv.h" |
| #include "util.h" |
| |
| #define TILE_TYPE_LINEAR 0 |
| |
| #if defined(MTK_MT8183) || defined(MTK_MT8186) |
| #define SUPPORTS_YUV422_AND_HIGH_BIT_DEPTH_TEXTURING |
| #endif |
| |
| // All platforms except MT8173 should USE_NV12_FOR_HW_VIDEO_DECODING. |
| #if defined(MTK_MT8183) || defined(MTK_MT8186) || defined(MTK_MT8192) || defined(MTK_MT8195) |
| #define USE_NV12_FOR_HW_VIDEO_DECODING |
| #endif |
| |
| struct mediatek_private_map_data { |
| void *cached_addr; |
| void *gem_addr; |
| int prime_fd; |
| }; |
| |
| static const uint32_t render_target_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888, |
| DRM_FORMAT_RGB565, DRM_FORMAT_XBGR8888, |
| DRM_FORMAT_XRGB8888 }; |
| |
| // clang-format off |
| static const uint32_t texture_source_formats[] = { |
| #ifdef SUPPORTS_YUV422_AND_HIGH_BIT_DEPTH_TEXTURING |
| DRM_FORMAT_NV21, |
| DRM_FORMAT_YUYV, |
| DRM_FORMAT_ABGR2101010, |
| DRM_FORMAT_ABGR16161616F, |
| #endif |
| DRM_FORMAT_NV12, |
| DRM_FORMAT_YVU420, |
| DRM_FORMAT_YVU420_ANDROID |
| }; |
| // clang-format on |
| |
| static int mediatek_init(struct driver *drv) |
| { |
| struct format_metadata metadata; |
| |
| drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats), |
| &LINEAR_METADATA, BO_USE_RENDER_MASK | BO_USE_SCANOUT); |
| |
| drv_add_combinations(drv, texture_source_formats, ARRAY_SIZE(texture_source_formats), |
| &LINEAR_METADATA, BO_USE_TEXTURE_MASK); |
| |
| drv_add_combination(drv, DRM_FORMAT_R8, &LINEAR_METADATA, BO_USE_SW_MASK | BO_USE_LINEAR); |
| |
| /* Android CTS tests require this. */ |
| drv_add_combination(drv, DRM_FORMAT_BGR888, &LINEAR_METADATA, BO_USE_SW_MASK); |
| |
| /* Support BO_USE_HW_VIDEO_DECODER for protected content minigbm allocations. */ |
| metadata.tiling = TILE_TYPE_LINEAR; |
| metadata.priority = 1; |
| metadata.modifier = DRM_FORMAT_MOD_LINEAR; |
| drv_modify_combination(drv, DRM_FORMAT_YVU420, &metadata, BO_USE_HW_VIDEO_DECODER); |
| drv_modify_combination(drv, DRM_FORMAT_YVU420_ANDROID, &metadata, BO_USE_HW_VIDEO_DECODER); |
| #ifdef USE_NV12_FOR_HW_VIDEO_DECODING |
| // TODO(hiroh): Switch to use NV12 for video decoder on MT8173 as well. |
| drv_modify_combination(drv, DRM_FORMAT_NV12, &metadata, BO_USE_HW_VIDEO_DECODER); |
| #endif |
| |
| /* |
| * R8 format is used for Android's HAL_PIXEL_FORMAT_BLOB for input/output from |
| * hardware decoder/encoder. |
| */ |
| drv_modify_combination(drv, DRM_FORMAT_R8, &metadata, |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER | |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE); |
| |
| /* NV12 format for encoding and display. */ |
| drv_modify_combination(drv, DRM_FORMAT_NV12, &metadata, |
| BO_USE_SCANOUT | BO_USE_HW_VIDEO_ENCODER | BO_USE_CAMERA_READ | |
| BO_USE_CAMERA_WRITE); |
| |
| #ifdef MTK_MT8183 |
| /* Only for MT8183 Camera subsystem */ |
| drv_modify_combination(drv, DRM_FORMAT_NV21, &metadata, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE); |
| drv_modify_combination(drv, DRM_FORMAT_YUYV, &metadata, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE); |
| drv_modify_combination(drv, DRM_FORMAT_YVU420, &metadata, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE); |
| /* Private formats for private reprocessing in camera */ |
| drv_add_combination(drv, DRM_FORMAT_MTISP_SXYZW10, &metadata, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_SW_MASK); |
| #endif |
| |
| return drv_modify_linear_combinations(drv); |
| } |
| |
| static int mediatek_bo_create_with_modifiers(struct bo *bo, uint32_t width, uint32_t height, |
| uint32_t format, const uint64_t *modifiers, |
| uint32_t count) |
| { |
| int ret; |
| size_t plane; |
| uint32_t stride; |
| struct drm_mtk_gem_create gem_create = { 0 }; |
| |
| if (!drv_has_modifier(modifiers, count, DRM_FORMAT_MOD_LINEAR)) { |
| errno = EINVAL; |
| drv_log("no usable modifier found\n"); |
| return -EINVAL; |
| } |
| |
| /* |
| * 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); |
| |
| if (bo->meta.use_flags & BO_USE_HW_VIDEO_ENCODER) { |
| uint32_t aligned_height = ALIGN(height, 32); |
| uint32_t padding[DRV_MAX_PLANES] = { 0 }; |
| |
| for (plane = 0; plane < bo->meta.num_planes; ++plane) { |
| uint32_t plane_stride = drv_stride_from_format(format, stride, plane); |
| padding[plane] = plane_stride * |
| (32 / drv_vertical_subsampling_from_format(format, plane)); |
| } |
| |
| drv_bo_from_format_and_padding(bo, stride, aligned_height, format, padding); |
| } else { |
| #ifdef SUPPORTS_YUV422_AND_HIGH_BIT_DEPTH_TEXTURING |
| /* |
| * JPEG Encoder Accelerator requires 16x16 alignment. We want the buffer |
| * from camera can be put in JEA directly so align the height to 16 |
| * bytes. |
| */ |
| if (format == DRM_FORMAT_NV12) |
| height = ALIGN(height, 16); |
| #endif |
| drv_bo_from_format(bo, stride, height, format); |
| } |
| |
| gem_create.size = bo->meta.total_size; |
| |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MTK_GEM_CREATE, &gem_create); |
| if (ret) { |
| drv_log("DRM_IOCTL_MTK_GEM_CREATE failed (size=%" PRIu64 ")\n", gem_create.size); |
| return -errno; |
| } |
| |
| for (plane = 0; plane < bo->meta.num_planes; plane++) |
| bo->handles[plane].u32 = gem_create.handle; |
| |
| return 0; |
| } |
| |
| static int mediatek_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, |
| uint64_t use_flags) |
| { |
| uint64_t modifiers[] = { DRM_FORMAT_MOD_LINEAR }; |
| return mediatek_bo_create_with_modifiers(bo, width, height, format, modifiers, |
| ARRAY_SIZE(modifiers)); |
| } |
| |
| static void *mediatek_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags) |
| { |
| int ret, prime_fd; |
| struct drm_mtk_gem_map_off gem_map = { 0 }; |
| struct mediatek_private_map_data *priv; |
| void *addr = NULL; |
| |
| gem_map.handle = bo->handles[0].u32; |
| |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_MTK_GEM_MAP_OFFSET, &gem_map); |
| if (ret) { |
| drv_log("DRM_IOCTL_MTK_GEM_MAP_OFFSET failed\n"); |
| return MAP_FAILED; |
| } |
| |
| prime_fd = drv_bo_get_plane_fd(bo, 0); |
| if (prime_fd < 0) { |
| drv_log("Failed to get a prime fd\n"); |
| return MAP_FAILED; |
| } |
| |
| addr = mmap(0, bo->meta.total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd, |
| gem_map.offset); |
| if (addr == MAP_FAILED) |
| goto out_close_prime_fd; |
| |
| vma->length = bo->meta.total_size; |
| |
| priv = calloc(1, sizeof(*priv)); |
| if (!priv) |
| goto out_unmap_addr; |
| |
| if (bo->meta.use_flags & BO_USE_RENDERSCRIPT) { |
| priv->cached_addr = calloc(1, bo->meta.total_size); |
| if (!priv->cached_addr) |
| goto out_free_priv; |
| |
| priv->gem_addr = addr; |
| addr = priv->cached_addr; |
| } |
| |
| priv->prime_fd = prime_fd; |
| vma->priv = priv; |
| |
| return addr; |
| |
| out_free_priv: |
| free(priv); |
| out_unmap_addr: |
| munmap(addr, bo->meta.total_size); |
| out_close_prime_fd: |
| close(prime_fd); |
| return MAP_FAILED; |
| } |
| |
| static int mediatek_bo_unmap(struct bo *bo, struct vma *vma) |
| { |
| if (vma->priv) { |
| struct mediatek_private_map_data *priv = vma->priv; |
| |
| if (priv->cached_addr) { |
| vma->addr = priv->gem_addr; |
| free(priv->cached_addr); |
| } |
| |
| close(priv->prime_fd); |
| free(priv); |
| vma->priv = NULL; |
| } |
| |
| return munmap(vma->addr, vma->length); |
| } |
| |
| static int mediatek_bo_invalidate(struct bo *bo, struct mapping *mapping) |
| { |
| struct mediatek_private_map_data *priv = mapping->vma->priv; |
| |
| if (priv) { |
| struct pollfd fds = { |
| .fd = priv->prime_fd, |
| }; |
| |
| if (mapping->vma->map_flags & BO_MAP_WRITE) |
| fds.events |= POLLOUT; |
| |
| if (mapping->vma->map_flags & BO_MAP_READ) |
| fds.events |= POLLIN; |
| |
| poll(&fds, 1, -1); |
| if (fds.revents != fds.events) |
| drv_log("poll prime_fd failed\n"); |
| |
| if (priv->cached_addr) |
| memcpy(priv->cached_addr, priv->gem_addr, bo->meta.total_size); |
| } |
| |
| return 0; |
| } |
| |
| static int mediatek_bo_flush(struct bo *bo, struct mapping *mapping) |
| { |
| struct mediatek_private_map_data *priv = mapping->vma->priv; |
| if (priv && priv->cached_addr && (mapping->vma->map_flags & BO_MAP_WRITE)) |
| memcpy(priv->gem_addr, priv->cached_addr, bo->meta.total_size); |
| |
| return 0; |
| } |
| |
| static void mediatek_resolve_format_and_use_flags(struct driver *drv, uint32_t format, |
| uint64_t use_flags, uint32_t *out_format, |
| uint64_t *out_use_flags) |
| { |
| *out_format = format; |
| *out_use_flags = use_flags; |
| switch (format) { |
| case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED: |
| #ifdef MTK_MT8183 |
| /* Only MT8183 Camera subsystem offers private reprocessing |
| * capability. CAMERA_READ indicates the buffer is intended for |
| * reprocessing and hence given the private format for MTK. */ |
| if (use_flags & BO_USE_CAMERA_READ) { |
| *out_format = DRM_FORMAT_MTISP_SXYZW10; |
| break; |
| } |
| #endif |
| if (use_flags & BO_USE_CAMERA_WRITE) { |
| *out_format = DRM_FORMAT_NV12; |
| break; |
| } |
| |
| /* HACK: See b/28671744 */ |
| *out_format = DRM_FORMAT_XBGR8888; |
| *out_use_flags &= ~BO_USE_HW_VIDEO_ENCODER; |
| break; |
| case DRM_FORMAT_FLEX_YCbCr_420_888: |
| #ifdef USE_NV12_FOR_HW_VIDEO_DECODING |
| // TODO(hiroh): Switch to use NV12 for video decoder on MT8173 as well. |
| if (use_flags & (BO_USE_HW_VIDEO_DECODER)) { |
| *out_format = DRM_FORMAT_NV12; |
| break; |
| } |
| #endif |
| if (use_flags & |
| (BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_ENCODER)) { |
| *out_format = DRM_FORMAT_NV12; |
| break; |
| } |
| |
| /* HACK: See b/139714614 */ |
| *out_format = DRM_FORMAT_YVU420; |
| *out_use_flags &= ~BO_USE_SCANOUT; |
| break; |
| case DRM_FORMAT_YVU420_ANDROID: |
| *out_use_flags &= ~BO_USE_SCANOUT; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| const struct backend backend_mediatek = { |
| .name = "mediatek", |
| .init = mediatek_init, |
| .bo_create = mediatek_bo_create, |
| .bo_create_with_modifiers = mediatek_bo_create_with_modifiers, |
| .bo_destroy = drv_gem_bo_destroy, |
| .bo_import = drv_prime_bo_import, |
| .bo_map = mediatek_bo_map, |
| .bo_unmap = mediatek_bo_unmap, |
| .bo_invalidate = mediatek_bo_invalidate, |
| .bo_flush = mediatek_bo_flush, |
| .resolve_format_and_use_flags = mediatek_resolve_format_and_use_flags, |
| }; |
| |
| #endif |