878fed4088
BUG=None TEST=None Change-Id: I6cece89a42ea41066cd8c4e2fc332898d5edb60a Reviewed-on: https://chromium-review.googlesource.com/439448 Commit-Ready: Niklas Schulze <me@jns.io> Tested-by: Niklas Schulze <me@jns.io> Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/*
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* Copyright 2017 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifdef DRV_VC4
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#include <stdio.h>
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#include <string.h>
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#include <sys/mman.h>
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#include <vc4_drm.h>
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#include <xf86drm.h>
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#include "drv_priv.h"
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#include "helpers.h"
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#include "util.h"
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static struct supported_combination combos[3] = {
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{DRM_FORMAT_ARGB8888, DRM_FORMAT_MOD_NONE,
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BO_USE_CURSOR | BO_USE_LINEAR | BO_USE_RENDERING | BO_USE_SW_READ_OFTEN |
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BO_USE_SW_WRITE_OFTEN | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
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{DRM_FORMAT_RGB565, DRM_FORMAT_MOD_NONE,
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BO_USE_RENDERING | BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN |
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BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
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{DRM_FORMAT_XRGB8888, DRM_FORMAT_MOD_NONE,
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BO_USE_CURSOR | BO_USE_LINEAR | BO_USE_RENDERING | BO_USE_SW_READ_OFTEN |
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BO_USE_SW_WRITE_OFTEN | BO_USE_SW_READ_RARELY | BO_USE_SW_WRITE_RARELY},
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};
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static int vc4_init(struct driver *drv)
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{
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drv_insert_combinations(drv, combos, ARRAY_SIZE(combos));
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return drv_add_kms_flags(drv);
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}
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static int vc4_bo_create(struct bo *bo, uint32_t width, uint32_t height,
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uint32_t format, uint32_t flags)
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{
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int ret;
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size_t plane;
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struct drm_vc4_create_bo bo_create;
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drv_bo_from_format(bo, width, height, format);
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memset(&bo_create, 0, sizeof(bo_create));
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bo_create.size = bo->total_size;
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ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VC4_CREATE_BO, &bo_create);
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if (ret) {
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fprintf(stderr, "drv: DRM_IOCTL_VC4_GEM_CREATE failed "
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"(size=%zu)\n", bo->total_size);
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return ret;
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}
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for (plane = 0; plane < bo->num_planes; plane++)
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bo->handles[plane].u32 = bo_create.handle;
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return 0;
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}
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static void *vc4_bo_map(struct bo *bo, struct map_info *data, size_t plane)
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{
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int ret;
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struct drm_vc4_mmap_bo bo_map;
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memset(&bo_map, 0, sizeof(bo_map));
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bo_map.handle = bo->handles[0].u32;
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ret = drmCommandWriteRead(bo->drv->fd, DRM_VC4_MMAP_BO, &bo_map,
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sizeof(bo_map));
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if (ret) {
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fprintf(stderr, "drv: DRM_VC4_MMAP_BO failed\n");
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return MAP_FAILED;
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}
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data->length = bo->total_size;
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return mmap(0, bo->total_size, PROT_READ | PROT_WRITE, MAP_SHARED,
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bo->drv->fd, bo_map.offset);
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}
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struct backend backend_vc4 =
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{
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.name = "vc4",
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.init = vc4_init,
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.bo_create = vc4_bo_create,
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.bo_import = drv_prime_bo_import,
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.bo_destroy = drv_gem_bo_destroy,
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.bo_map = vc4_bo_map,
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};
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#endif
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