blob: 5ae98f4761015443c1f5e51591b0f521e3891c9c [file] [log] [blame]
/*
* Copyright 2014 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_ROCKCHIP
#include <errno.h>
#include <inttypes.h>
#include <rockchip_drm.h>
#include <stdio.h>
#include <string.h>
#include <sys/mman.h>
#include <xf86drm.h>
#include "drv_priv.h"
#include "helpers.h"
#include "util.h"
struct rockchip_private_map_data {
void *cached_addr;
void *gem_addr;
};
static const uint32_t scanout_render_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888,
DRM_FORMAT_BGR888, DRM_FORMAT_RGB565,
DRM_FORMAT_XBGR8888, DRM_FORMAT_XRGB8888 };
static const uint32_t texture_only_formats[] = { DRM_FORMAT_NV12, DRM_FORMAT_YVU420,
DRM_FORMAT_YVU420_ANDROID };
static int afbc_bo_from_format(struct bo *bo, uint32_t width, uint32_t height, uint32_t format)
{
/* We've restricted ourselves to four bytes per pixel. */
const uint32_t pixel_size = 4;
const uint32_t clump_width = 4;
const uint32_t clump_height = 4;
#define AFBC_NARROW 1
#if AFBC_NARROW == 1
const uint32_t block_width = 4 * clump_width;
const uint32_t block_height = 4 * clump_height;
#else
const uint32_t block_width = 8 * clump_width;
const uint32_t block_height = 2 * clump_height;
#endif
const uint32_t header_block_size = 16;
const uint32_t body_block_size = block_width * block_height * pixel_size;
const uint32_t width_in_blocks = DIV_ROUND_UP(width, block_width);
const uint32_t height_in_blocks = DIV_ROUND_UP(height, block_height);
const uint32_t total_blocks = width_in_blocks * height_in_blocks;
const uint32_t header_plane_size = total_blocks * header_block_size;
const uint32_t body_plane_size = total_blocks * body_block_size;
/* GPU requires 64 bytes, but EGL import code expects 1024 byte
* alignement for the body plane. */
const uint32_t body_plane_alignment = 1024;
const uint32_t body_plane_offset = ALIGN(header_plane_size, body_plane_alignment);
const uint32_t total_size = body_plane_offset + body_plane_size;
bo->meta.strides[0] = width_in_blocks * block_width * pixel_size;
bo->meta.sizes[0] = total_size;
bo->meta.offsets[0] = 0;
bo->meta.total_size = total_size;
bo->meta.format_modifier = DRM_FORMAT_MOD_CHROMEOS_ROCKCHIP_AFBC;
return 0;
}
static int rockchip_init(struct driver *drv)
{
struct format_metadata metadata;
metadata.tiling = 0;
metadata.priority = 1;
metadata.modifier = DRM_FORMAT_MOD_LINEAR;
drv_add_combinations(drv, scanout_render_formats, ARRAY_SIZE(scanout_render_formats),
&metadata, BO_USE_RENDER_MASK | BO_USE_SCANOUT);
drv_add_combinations(drv, texture_only_formats, ARRAY_SIZE(texture_only_formats), &metadata,
BO_USE_TEXTURE_MASK);
/* NV12 format for camera, display, decoding and encoding. */
/* Camera ISP supports only NV12 output. */
drv_modify_combination(drv, DRM_FORMAT_NV12, &metadata,
BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_SCANOUT |
BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER);
drv_modify_linear_combinations(drv);
/*
* R8 format is used for Android's HAL_PIXEL_FORMAT_BLOB and is used for JPEG snapshots
* from camera and input/output from hardware decoder/encoder.
*/
drv_add_combination(drv, DRM_FORMAT_R8, &metadata,
BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_SW_MASK |
BO_USE_LINEAR | BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER);
return 0;
}
static int rockchip_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;
struct drm_rockchip_gem_create gem_create = { 0 };
if (format == DRM_FORMAT_NV12) {
uint32_t w_mbs = DIV_ROUND_UP(width, 16);
uint32_t h_mbs = DIV_ROUND_UP(height, 16);
uint32_t aligned_width = w_mbs * 16;
uint32_t aligned_height = h_mbs * 16;
drv_bo_from_format(bo, aligned_width, aligned_height, format);
/*
* drv_bo_from_format updates total_size. Add an extra data space for rockchip video
* driver to store motion vectors.
*/
bo->meta.total_size += w_mbs * h_mbs * 128;
} else if (width <= 2560 &&
drv_has_modifier(modifiers, count, DRM_FORMAT_MOD_CHROMEOS_ROCKCHIP_AFBC) &&
bo->drv->compression) {
/* If the caller has decided they can use AFBC, always
* pick that */
afbc_bo_from_format(bo, width, height, format);
} else {
if (!drv_has_modifier(modifiers, count, DRM_FORMAT_MOD_LINEAR)) {
errno = EINVAL;
drv_log("no usable modifier found\n");
return -errno;
}
uint32_t stride;
/*
* Since the ARM L1 cache line size is 64 bytes, align to that
* as a performance optimization. For YV12, the Mali cmem allocator
* requires that chroma planes are aligned to 64-bytes, so align the
* luma plane to 128 bytes.
*/
stride = drv_stride_from_format(format, width, 0);
if (format == DRM_FORMAT_YVU420 || format == DRM_FORMAT_YVU420_ANDROID)
stride = ALIGN(stride, 128);
else
stride = ALIGN(stride, 64);
drv_bo_from_format(bo, stride, height, format);
}
gem_create.size = bo->meta.total_size;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_ROCKCHIP_GEM_CREATE, &gem_create);
if (ret) {
drv_log("DRM_IOCTL_ROCKCHIP_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 rockchip_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 rockchip_bo_create_with_modifiers(bo, width, height, format, modifiers,
ARRAY_SIZE(modifiers));
}
static void *rockchip_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags)
{
int ret;
struct rockchip_private_map_data *priv;
struct drm_rockchip_gem_map_off gem_map = { 0 };
/* We can only map buffers created with SW access flags, which should
* have no modifiers (ie, not AFBC). */
if (bo->meta.format_modifier == DRM_FORMAT_MOD_CHROMEOS_ROCKCHIP_AFBC)
return MAP_FAILED;
gem_map.handle = bo->handles[0].u32;
ret = drmIoctl(bo->drv->fd, DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET, &gem_map);
if (ret) {
drv_log("DRM_IOCTL_ROCKCHIP_GEM_MAP_OFFSET failed\n");
return MAP_FAILED;
}
void *addr = mmap(0, bo->meta.total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd,
gem_map.offset);
vma->length = bo->meta.total_size;
if (bo->meta.use_flags & BO_USE_RENDERSCRIPT) {
priv = calloc(1, sizeof(*priv));
priv->cached_addr = calloc(1, bo->meta.total_size);
priv->gem_addr = addr;
vma->priv = priv;
addr = priv->cached_addr;
}
return addr;
}
static int rockchip_bo_unmap(struct bo *bo, struct vma *vma)
{
if (vma->priv) {
struct rockchip_private_map_data *priv = vma->priv;
vma->addr = priv->gem_addr;
free(priv->cached_addr);
free(priv);
vma->priv = NULL;
}
return munmap(vma->addr, vma->length);
}
static int rockchip_bo_invalidate(struct bo *bo, struct mapping *mapping)
{
if (mapping->vma->priv) {
struct rockchip_private_map_data *priv = mapping->vma->priv;
memcpy(priv->cached_addr, priv->gem_addr, bo->meta.total_size);
}
return 0;
}
static int rockchip_bo_flush(struct bo *bo, struct mapping *mapping)
{
struct rockchip_private_map_data *priv = mapping->vma->priv;
if (priv && (mapping->vma->map_flags & BO_MAP_WRITE))
memcpy(priv->gem_addr, priv->cached_addr, bo->meta.total_size);
return 0;
}
static uint32_t rockchip_resolve_format(struct driver *drv, uint32_t format, uint64_t use_flags)
{
switch (format) {
case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED:
/* Camera subsystem requires NV12. */
if (use_flags & (BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE))
return DRM_FORMAT_NV12;
/*HACK: See b/28671744 */
return DRM_FORMAT_XBGR8888;
case DRM_FORMAT_FLEX_YCbCr_420_888:
return DRM_FORMAT_NV12;
default:
return format;
}
}
const struct backend backend_rockchip = {
.name = "rockchip",
.init = rockchip_init,
.bo_create = rockchip_bo_create,
.bo_create_with_modifiers = rockchip_bo_create_with_modifiers,
.bo_destroy = drv_gem_bo_destroy,
.bo_import = drv_prime_bo_import,
.bo_map = rockchip_bo_map,
.bo_unmap = rockchip_bo_unmap,
.bo_invalidate = rockchip_bo_invalidate,
.bo_flush = rockchip_bo_flush,
.resolve_format = rockchip_resolve_format,
};
#endif