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/*
* 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