Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2017 The Chromium OS Authors. All rights reserved. |
| 3 | * Use of this source code is governed by a BSD-style license that can be |
| 4 | * found in the LICENSE file. |
| 5 | */ |
| 6 | |
| 7 | #ifdef DRV_VC4 |
| 8 | |
Stéphane Marchesin | 6ac299f | 2019-03-21 12:23:29 -0700 | [diff] [blame] | 9 | #include <errno.h> |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 10 | #include <stdio.h> |
| 11 | #include <string.h> |
| 12 | #include <sys/mman.h> |
| 13 | #include <vc4_drm.h> |
| 14 | #include <xf86drm.h> |
| 15 | |
| 16 | #include "drv_priv.h" |
| 17 | #include "helpers.h" |
| 18 | #include "util.h" |
| 19 | |
Gurchetan Singh | 8ac0c9a | 2017-05-15 09:34:22 -0700 | [diff] [blame] | 20 | static const uint32_t render_target_formats[] = { DRM_FORMAT_ARGB8888, DRM_FORMAT_RGB565, |
| 21 | DRM_FORMAT_XRGB8888 }; |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 22 | |
| 23 | static int vc4_init(struct driver *drv) |
| 24 | { |
Gurchetan Singh | d300145 | 2017-11-03 17:18:36 -0700 | [diff] [blame] | 25 | drv_add_combinations(drv, render_target_formats, ARRAY_SIZE(render_target_formats), |
| 26 | &LINEAR_METADATA, BO_USE_RENDER_MASK); |
Gurchetan Singh | 8ac0c9a | 2017-05-15 09:34:22 -0700 | [diff] [blame] | 27 | |
| 28 | return drv_modify_linear_combinations(drv); |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 29 | } |
| 30 | |
Gurchetan Singh | c5352e6 | 2020-02-21 17:59:01 -0800 | [diff] [blame^] | 31 | static int vc4_bo_create_for_modifier(struct bo *bo, uint32_t width, uint32_t height, |
| 32 | uint32_t format, uint64_t modifier) |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 33 | { |
| 34 | int ret; |
| 35 | size_t plane; |
Gurchetan Singh | 6423ecb | 2017-03-29 08:23:40 -0700 | [diff] [blame] | 36 | uint32_t stride; |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 37 | struct drm_vc4_create_bo bo_create; |
| 38 | |
Gurchetan Singh | c5352e6 | 2020-02-21 17:59:01 -0800 | [diff] [blame^] | 39 | switch (modifier) { |
| 40 | case DRM_FORMAT_MOD_LINEAR: |
| 41 | break; |
| 42 | case DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED: |
| 43 | drv_log("DRM_FORMAT_MOD_BROADCOM_VC4_T_TILED not supported yet\n"); |
| 44 | return -EINVAL; |
| 45 | default: |
| 46 | return -EINVAL; |
| 47 | } |
| 48 | |
Gurchetan Singh | 6423ecb | 2017-03-29 08:23:40 -0700 | [diff] [blame] | 49 | /* |
| 50 | * Since the ARM L1 cache line size is 64 bytes, align to that as a |
| 51 | * performance optimization. |
| 52 | */ |
| 53 | stride = drv_stride_from_format(format, width, 0); |
| 54 | stride = ALIGN(stride, 64); |
| 55 | drv_bo_from_format(bo, stride, height, format); |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 56 | |
| 57 | memset(&bo_create, 0, sizeof(bo_create)); |
Gurchetan Singh | 298b757 | 2019-09-19 09:55:18 -0700 | [diff] [blame] | 58 | bo_create.size = bo->meta.total_size; |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 59 | |
| 60 | ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VC4_CREATE_BO, &bo_create); |
| 61 | if (ret) { |
Gurchetan Singh | 298b757 | 2019-09-19 09:55:18 -0700 | [diff] [blame] | 62 | drv_log("DRM_IOCTL_VC4_GEM_CREATE failed (size=%zu)\n", bo->meta.total_size); |
Stéphane Marchesin | 6ac299f | 2019-03-21 12:23:29 -0700 | [diff] [blame] | 63 | return -errno; |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 64 | } |
| 65 | |
Gurchetan Singh | 298b757 | 2019-09-19 09:55:18 -0700 | [diff] [blame] | 66 | for (plane = 0; plane < bo->meta.num_planes; plane++) |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 67 | bo->handles[plane].u32 = bo_create.handle; |
| 68 | |
| 69 | return 0; |
| 70 | } |
| 71 | |
Gurchetan Singh | c5352e6 | 2020-02-21 17:59:01 -0800 | [diff] [blame^] | 72 | static int vc4_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, |
| 73 | uint64_t use_flags) |
| 74 | { |
| 75 | struct combination *combo; |
| 76 | |
| 77 | combo = drv_get_combination(bo->drv, format, use_flags); |
| 78 | if (!combo) |
| 79 | return -EINVAL; |
| 80 | |
| 81 | return vc4_bo_create_for_modifier(bo, width, height, format, combo->metadata.modifier); |
| 82 | } |
| 83 | |
| 84 | static int vc4_bo_create_with_modifiers(struct bo *bo, uint32_t width, uint32_t height, |
| 85 | uint32_t format, const uint64_t *modifiers, uint32_t count) |
| 86 | { |
| 87 | static const uint64_t modifier_order[] = { |
| 88 | DRM_FORMAT_MOD_LINEAR, |
| 89 | }; |
| 90 | uint64_t modifier; |
| 91 | |
| 92 | modifier = drv_pick_modifier(modifiers, count, modifier_order, ARRAY_SIZE(modifier_order)); |
| 93 | |
| 94 | return vc4_bo_create_for_modifier(bo, width, height, format, modifier); |
| 95 | } |
| 96 | |
Gurchetan Singh | ee43c30 | 2017-11-14 18:20:27 -0800 | [diff] [blame] | 97 | static void *vc4_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags) |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 98 | { |
| 99 | int ret; |
| 100 | struct drm_vc4_mmap_bo bo_map; |
| 101 | |
| 102 | memset(&bo_map, 0, sizeof(bo_map)); |
| 103 | bo_map.handle = bo->handles[0].u32; |
| 104 | |
Gurchetan Singh | 1b1d56a | 2017-03-10 16:25:23 -0800 | [diff] [blame] | 105 | ret = drmCommandWriteRead(bo->drv->fd, DRM_VC4_MMAP_BO, &bo_map, sizeof(bo_map)); |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 106 | if (ret) { |
Alistair Strachan | 0cfaaa5 | 2018-03-19 14:03:23 -0700 | [diff] [blame] | 107 | drv_log("DRM_VC4_MMAP_BO failed\n"); |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 108 | return MAP_FAILED; |
| 109 | } |
| 110 | |
Gurchetan Singh | 298b757 | 2019-09-19 09:55:18 -0700 | [diff] [blame] | 111 | vma->length = bo->meta.total_size; |
| 112 | return mmap(NULL, bo->meta.total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd, |
Gurchetan Singh | cfb8876 | 2017-09-28 17:14:50 -0700 | [diff] [blame] | 113 | bo_map.offset); |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 114 | } |
| 115 | |
Gurchetan Singh | 3e9d383 | 2017-10-31 10:36:25 -0700 | [diff] [blame] | 116 | const struct backend backend_vc4 = { |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 117 | .name = "vc4", |
| 118 | .init = vc4_init, |
| 119 | .bo_create = vc4_bo_create, |
Gurchetan Singh | c5352e6 | 2020-02-21 17:59:01 -0800 | [diff] [blame^] | 120 | .bo_create_with_modifiers = vc4_bo_create_with_modifiers, |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 121 | .bo_import = drv_prime_bo_import, |
| 122 | .bo_destroy = drv_gem_bo_destroy, |
| 123 | .bo_map = vc4_bo_map, |
Gurchetan Singh | ba6bd50 | 2017-09-18 15:29:47 -0700 | [diff] [blame] | 124 | .bo_unmap = drv_bo_munmap, |
Niklas Schulze | 878fed4 | 2017-02-08 15:29:21 +0100 | [diff] [blame] | 125 | }; |
| 126 | |
| 127 | #endif |