| /* |
| * Copyright 2017 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. |
| */ |
| |
| #include <assert.h> |
| #include <errno.h> |
| #include <stdatomic.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <sys/mman.h> |
| #include <xf86drm.h> |
| |
| #include "drv_helpers.h" |
| #include "drv_priv.h" |
| #include "external/virgl_hw.h" |
| #include "external/virgl_protocol.h" |
| #include "external/virtgpu_drm.h" |
| #include "util.h" |
| #include "virtgpu.h" |
| |
| #define PIPE_TEXTURE_2D 2 |
| |
| #define MESA_LLVMPIPE_MAX_TEXTURE_2D_LEVELS 15 |
| #define MESA_LLVMPIPE_MAX_TEXTURE_2D_SIZE (1 << (MESA_LLVMPIPE_MAX_TEXTURE_2D_LEVELS - 1)) |
| #define MESA_LLVMPIPE_TILE_ORDER 6 |
| #define MESA_LLVMPIPE_TILE_SIZE (1 << MESA_LLVMPIPE_TILE_ORDER) |
| |
| // This comes from a combination of SwiftShader's VkPhysicalDeviceLimits::maxFramebufferWidth and |
| // VkPhysicalDeviceLimits::maxImageDimension2D (see https://crrev.com/c/1917130). |
| #define ANGLE_ON_SWIFTSHADER_MAX_TEXTURE_2D_SIZE 8192 |
| |
| #ifndef MIN |
| #define MIN(a, b) ((a) < (b) ? (a) : (b)) |
| #endif |
| #define VIRGL_2D_MAX_TEXTURE_2D_SIZE \ |
| MIN(ANGLE_ON_SWIFTSHADER_MAX_TEXTURE_2D_SIZE, MESA_LLVMPIPE_MAX_TEXTURE_2D_SIZE) |
| |
| static const uint32_t render_target_formats[] = { DRM_FORMAT_ABGR8888, DRM_FORMAT_ARGB8888, |
| DRM_FORMAT_RGB565, DRM_FORMAT_XBGR8888, |
| DRM_FORMAT_XRGB8888 }; |
| |
| static const uint32_t dumb_texture_source_formats[] = { |
| DRM_FORMAT_R8, DRM_FORMAT_R16, DRM_FORMAT_YVU420, |
| DRM_FORMAT_NV12, DRM_FORMAT_NV21, DRM_FORMAT_YVU420_ANDROID, |
| DRM_FORMAT_ABGR2101010, DRM_FORMAT_ABGR16161616F |
| }; |
| |
| static const uint32_t texture_source_formats[] = { |
| DRM_FORMAT_NV21, DRM_FORMAT_R8, DRM_FORMAT_R16, DRM_FORMAT_RG88, |
| DRM_FORMAT_YVU420_ANDROID, DRM_FORMAT_ABGR2101010, DRM_FORMAT_ABGR16161616F |
| }; |
| |
| extern struct virtgpu_param params[]; |
| |
| struct virgl_priv { |
| int caps_is_v2; |
| union virgl_caps caps; |
| int host_gbm_enabled; |
| atomic_int next_blob_id; |
| }; |
| |
| static uint32_t translate_format(uint32_t drm_fourcc) |
| { |
| switch (drm_fourcc) { |
| case DRM_FORMAT_BGR888: |
| case DRM_FORMAT_RGB888: |
| return VIRGL_FORMAT_R8G8B8_UNORM; |
| case DRM_FORMAT_XRGB8888: |
| return VIRGL_FORMAT_B8G8R8X8_UNORM; |
| case DRM_FORMAT_ARGB8888: |
| return VIRGL_FORMAT_B8G8R8A8_UNORM; |
| case DRM_FORMAT_XBGR8888: |
| return VIRGL_FORMAT_R8G8B8X8_UNORM; |
| case DRM_FORMAT_ABGR8888: |
| return VIRGL_FORMAT_R8G8B8A8_UNORM; |
| case DRM_FORMAT_ABGR16161616F: |
| return VIRGL_FORMAT_R16G16B16A16_FLOAT; |
| case DRM_FORMAT_ABGR2101010: |
| return VIRGL_FORMAT_R10G10B10A2_UNORM; |
| case DRM_FORMAT_RGB565: |
| return VIRGL_FORMAT_B5G6R5_UNORM; |
| case DRM_FORMAT_R8: |
| return VIRGL_FORMAT_R8_UNORM; |
| case DRM_FORMAT_R16: |
| return VIRGL_FORMAT_R16_UNORM; |
| case DRM_FORMAT_RG88: |
| return VIRGL_FORMAT_R8G8_UNORM; |
| case DRM_FORMAT_NV12: |
| return VIRGL_FORMAT_NV12; |
| case DRM_FORMAT_NV21: |
| return VIRGL_FORMAT_NV21; |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_YVU420_ANDROID: |
| return VIRGL_FORMAT_YV12; |
| default: |
| drv_log("Unhandled format:%d\n", drm_fourcc); |
| return 0; |
| } |
| } |
| |
| static bool virgl_bitmask_supports_format(struct virgl_supported_format_mask *supported, |
| uint32_t drm_format) |
| { |
| uint32_t virgl_format = translate_format(drm_format); |
| if (!virgl_format) |
| return false; |
| |
| uint32_t bitmask_index = virgl_format / 32; |
| uint32_t bit_index = virgl_format % 32; |
| return supported->bitmask[bitmask_index] & (1 << bit_index); |
| } |
| |
| // The metadata generated here for emulated buffers is slightly different than the metadata |
| // generated by drv_bo_from_format. In order to simplify transfers in the flush and invalidate |
| // functions below, the emulated buffers are oversized. For example, ignoring stride alignment |
| // requirements to demonstrate, a 6x6 YUV420 image buffer might have the following layout from |
| // drv_bo_from_format: |
| // |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | U | U | U | U | U | U | |
| // | U | U | U | V | V | V | |
| // | V | V | V | V | V | V | |
| // |
| // where each plane immediately follows the previous plane in memory. This layout makes it |
| // difficult to compute the transfers needed for example when the middle 2x2 region of the |
| // image is locked and needs to be flushed/invalidated. |
| // |
| // Emulated multi-plane buffers instead have a layout of: |
| // |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | Y | Y | Y | Y | Y | Y | |
| // | U | U | U | | | | |
| // | U | U | U | | | | |
| // | U | U | U | | | | |
| // | V | V | V | | | | |
| // | V | V | V | | | | |
| // | V | V | V | | | | |
| // |
| // where each plane is placed as a sub-image (albeit with a very large stride) in order to |
| // simplify transfers into 3 sub-image transfers for the above example. |
| // |
| // Additional note: the V-plane is not placed to the right of the U-plane due to some |
| // observed failures in media framework code which assumes the V-plane is not |
| // "row-interlaced" with the U-plane. |
| static void virgl_get_emulated_metadata(const struct bo *bo, struct bo_metadata *metadata) |
| { |
| uint32_t y_plane_height; |
| uint32_t c_plane_height; |
| uint32_t original_width = bo->meta.width; |
| uint32_t original_height = bo->meta.height; |
| |
| metadata->format = DRM_FORMAT_R8; |
| switch (bo->meta.format) { |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_NV21: |
| // Bi-planar |
| metadata->num_planes = 2; |
| |
| y_plane_height = original_height; |
| c_plane_height = DIV_ROUND_UP(original_height, 2); |
| |
| metadata->width = original_width; |
| metadata->height = y_plane_height + c_plane_height; |
| |
| // Y-plane (full resolution) |
| metadata->strides[0] = metadata->width; |
| metadata->offsets[0] = 0; |
| metadata->sizes[0] = metadata->width * y_plane_height; |
| |
| // CbCr-plane (half resolution, interleaved, placed below Y-plane) |
| metadata->strides[1] = metadata->width; |
| metadata->offsets[1] = metadata->offsets[0] + metadata->sizes[0]; |
| metadata->sizes[1] = metadata->width * c_plane_height; |
| |
| metadata->total_size = metadata->width * metadata->height; |
| break; |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_YVU420_ANDROID: |
| // Tri-planar |
| metadata->num_planes = 3; |
| |
| y_plane_height = original_height; |
| c_plane_height = DIV_ROUND_UP(original_height, 2); |
| |
| metadata->width = ALIGN(original_width, 32); |
| metadata->height = y_plane_height + (2 * c_plane_height); |
| |
| // Y-plane (full resolution) |
| metadata->strides[0] = metadata->width; |
| metadata->offsets[0] = 0; |
| metadata->sizes[0] = metadata->width * original_height; |
| |
| // Cb-plane (half resolution, placed below Y-plane) |
| metadata->strides[1] = metadata->width; |
| metadata->offsets[1] = metadata->offsets[0] + metadata->sizes[0]; |
| metadata->sizes[1] = metadata->width * c_plane_height; |
| |
| // Cr-plane (half resolution, placed below Cb-plane) |
| metadata->strides[2] = metadata->width; |
| metadata->offsets[2] = metadata->offsets[1] + metadata->sizes[1]; |
| metadata->sizes[2] = metadata->width * c_plane_height; |
| |
| metadata->total_size = metadata->width * metadata->height; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| struct virtio_transfers_params { |
| size_t xfers_needed; |
| struct rectangle xfer_boxes[DRV_MAX_PLANES]; |
| }; |
| |
| static void virgl_get_emulated_transfers_params(const struct bo *bo, |
| const struct rectangle *transfer_box, |
| struct virtio_transfers_params *xfer_params) |
| { |
| uint32_t y_plane_height; |
| uint32_t c_plane_height; |
| struct bo_metadata emulated_metadata; |
| |
| if (transfer_box->x == 0 && transfer_box->y == 0 && transfer_box->width == bo->meta.width && |
| transfer_box->height == bo->meta.height) { |
| virgl_get_emulated_metadata(bo, &emulated_metadata); |
| |
| xfer_params->xfers_needed = 1; |
| xfer_params->xfer_boxes[0].x = 0; |
| xfer_params->xfer_boxes[0].y = 0; |
| xfer_params->xfer_boxes[0].width = emulated_metadata.width; |
| xfer_params->xfer_boxes[0].height = emulated_metadata.height; |
| |
| return; |
| } |
| |
| switch (bo->meta.format) { |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_NV21: |
| // Bi-planar |
| xfer_params->xfers_needed = 2; |
| |
| y_plane_height = bo->meta.height; |
| c_plane_height = DIV_ROUND_UP(bo->meta.height, 2); |
| |
| // Y-plane (full resolution) |
| xfer_params->xfer_boxes[0].x = transfer_box->x; |
| xfer_params->xfer_boxes[0].y = transfer_box->y; |
| xfer_params->xfer_boxes[0].width = transfer_box->width; |
| xfer_params->xfer_boxes[0].height = transfer_box->height; |
| |
| // CbCr-plane (half resolution, interleaved, placed below Y-plane) |
| xfer_params->xfer_boxes[1].x = transfer_box->x; |
| xfer_params->xfer_boxes[1].y = transfer_box->y + y_plane_height; |
| xfer_params->xfer_boxes[1].width = transfer_box->width; |
| xfer_params->xfer_boxes[1].height = DIV_ROUND_UP(transfer_box->height, 2); |
| |
| break; |
| case DRM_FORMAT_YVU420: |
| case DRM_FORMAT_YVU420_ANDROID: |
| // Tri-planar |
| xfer_params->xfers_needed = 3; |
| |
| y_plane_height = bo->meta.height; |
| c_plane_height = DIV_ROUND_UP(bo->meta.height, 2); |
| |
| // Y-plane (full resolution) |
| xfer_params->xfer_boxes[0].x = transfer_box->x; |
| xfer_params->xfer_boxes[0].y = transfer_box->y; |
| xfer_params->xfer_boxes[0].width = transfer_box->width; |
| xfer_params->xfer_boxes[0].height = transfer_box->height; |
| |
| // Cb-plane (half resolution, placed below Y-plane) |
| xfer_params->xfer_boxes[1].x = transfer_box->x; |
| xfer_params->xfer_boxes[1].y = transfer_box->y + y_plane_height; |
| xfer_params->xfer_boxes[1].width = DIV_ROUND_UP(transfer_box->width, 2); |
| xfer_params->xfer_boxes[1].height = DIV_ROUND_UP(transfer_box->height, 2); |
| |
| // Cr-plane (half resolution, placed below Cb-plane) |
| xfer_params->xfer_boxes[2].x = transfer_box->x; |
| xfer_params->xfer_boxes[2].y = transfer_box->y + y_plane_height + c_plane_height; |
| xfer_params->xfer_boxes[2].width = DIV_ROUND_UP(transfer_box->width, 2); |
| xfer_params->xfer_boxes[2].height = DIV_ROUND_UP(transfer_box->height, 2); |
| |
| break; |
| } |
| } |
| |
| static bool virgl_supports_combination_natively(struct driver *drv, uint32_t drm_format, |
| uint64_t use_flags) |
| { |
| struct virgl_priv *priv = (struct virgl_priv *)drv->priv; |
| |
| if (priv->caps.max_version == 0) |
| return true; |
| |
| if ((use_flags & BO_USE_RENDERING) && |
| !virgl_bitmask_supports_format(&priv->caps.v1.render, drm_format)) |
| return false; |
| |
| if ((use_flags & BO_USE_TEXTURE) && |
| !virgl_bitmask_supports_format(&priv->caps.v1.sampler, drm_format)) |
| return false; |
| |
| if ((use_flags & BO_USE_SCANOUT) && priv->caps_is_v2 && |
| !virgl_bitmask_supports_format(&priv->caps.v2.scanout, drm_format)) |
| return false; |
| |
| return true; |
| } |
| |
| // For virtio backends that do not support formats natively (e.g. multi-planar formats are not |
| // supported in virglrenderer when gbm is unavailable on the host machine), whether or not the |
| // format and usage combination can be handled as a blob (byte buffer). |
| static bool virgl_supports_combination_through_emulation(struct driver *drv, uint32_t drm_format, |
| uint64_t use_flags) |
| { |
| struct virgl_priv *priv = (struct virgl_priv *)drv->priv; |
| |
| // Only enable emulation on non-gbm virtio backends. |
| if (priv->host_gbm_enabled) |
| return false; |
| |
| if (use_flags & (BO_USE_RENDERING | BO_USE_SCANOUT)) |
| return false; |
| |
| if (!virgl_supports_combination_natively(drv, DRM_FORMAT_R8, use_flags)) |
| return false; |
| |
| return drm_format == DRM_FORMAT_NV12 || drm_format == DRM_FORMAT_NV21 || |
| drm_format == DRM_FORMAT_YVU420 || drm_format == DRM_FORMAT_YVU420_ANDROID; |
| } |
| |
| // Adds the given buffer combination to the list of supported buffer combinations if the |
| // combination is supported by the virtio backend. |
| static void virgl_add_combination(struct driver *drv, uint32_t drm_format, |
| struct format_metadata *metadata, uint64_t use_flags) |
| { |
| if (params[param_3d].value) { |
| if ((use_flags & BO_USE_SCANOUT) && |
| !virgl_supports_combination_natively(drv, drm_format, BO_USE_SCANOUT)) { |
| drv_log("Strip scanout on format: %d\n", drm_format); |
| use_flags &= ~BO_USE_SCANOUT; |
| } |
| |
| if (!virgl_supports_combination_natively(drv, drm_format, use_flags) && |
| !virgl_supports_combination_through_emulation(drv, drm_format, use_flags)) { |
| drv_log("Skipping unsupported combination format:%d\n", drm_format); |
| return; |
| } |
| } |
| |
| drv_add_combination(drv, drm_format, metadata, use_flags); |
| } |
| |
| // Adds each given buffer combination to the list of supported buffer combinations if the |
| // combination supported by the virtio backend. |
| static void virgl_add_combinations(struct driver *drv, const uint32_t *drm_formats, |
| uint32_t num_formats, struct format_metadata *metadata, |
| uint64_t use_flags) |
| { |
| uint32_t i; |
| |
| for (i = 0; i < num_formats; i++) |
| virgl_add_combination(drv, drm_formats[i], metadata, use_flags); |
| } |
| |
| static int virgl_2d_dumb_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, |
| uint64_t use_flags) |
| { |
| if (bo->meta.format != DRM_FORMAT_R8) { |
| width = ALIGN(width, MESA_LLVMPIPE_TILE_SIZE); |
| height = ALIGN(height, MESA_LLVMPIPE_TILE_SIZE); |
| } |
| |
| return drv_dumb_bo_create_ex(bo, width, height, format, use_flags, BO_QUIRK_DUMB32BPP); |
| } |
| |
| static inline void handle_flag(uint64_t *flag, uint64_t check_flag, uint32_t *bind, |
| uint32_t virgl_bind) |
| { |
| if ((*flag) & check_flag) { |
| (*flag) &= ~check_flag; |
| (*bind) |= virgl_bind; |
| } |
| } |
| |
| static uint32_t compute_virgl_bind_flags(uint64_t use_flags, uint32_t format) |
| { |
| /* In crosvm, VIRGL_BIND_SHARED means minigbm will allocate, not virglrenderer. */ |
| uint32_t bind = VIRGL_BIND_SHARED; |
| |
| handle_flag(&use_flags, BO_USE_TEXTURE, &bind, VIRGL_BIND_SAMPLER_VIEW); |
| handle_flag(&use_flags, BO_USE_RENDERING, &bind, VIRGL_BIND_RENDER_TARGET); |
| handle_flag(&use_flags, BO_USE_SCANOUT, &bind, VIRGL_BIND_SCANOUT); |
| handle_flag(&use_flags, BO_USE_CURSOR, &bind, VIRGL_BIND_CURSOR); |
| handle_flag(&use_flags, BO_USE_LINEAR, &bind, VIRGL_BIND_LINEAR); |
| handle_flag(&use_flags, BO_USE_GPU_DATA_BUFFER, &bind, VIRGL_BIND_LINEAR); |
| handle_flag(&use_flags, BO_USE_FRONT_RENDERING, &bind, VIRGL_BIND_LINEAR); |
| |
| if (use_flags & BO_USE_PROTECTED) { |
| handle_flag(&use_flags, BO_USE_PROTECTED, &bind, VIRGL_BIND_MINIGBM_PROTECTED); |
| } else { |
| // Make sure we don't set both flags, since that could be mistaken for |
| // protected. Give OFTEN priority over RARELY. |
| if (use_flags & BO_USE_SW_READ_OFTEN) { |
| handle_flag(&use_flags, BO_USE_SW_READ_OFTEN, &bind, |
| VIRGL_BIND_MINIGBM_SW_READ_OFTEN); |
| } else { |
| handle_flag(&use_flags, BO_USE_SW_READ_RARELY, &bind, |
| VIRGL_BIND_MINIGBM_SW_READ_RARELY); |
| } |
| if (use_flags & BO_USE_SW_WRITE_OFTEN) { |
| handle_flag(&use_flags, BO_USE_SW_WRITE_OFTEN, &bind, |
| VIRGL_BIND_MINIGBM_SW_WRITE_OFTEN); |
| } else { |
| handle_flag(&use_flags, BO_USE_SW_WRITE_RARELY, &bind, |
| VIRGL_BIND_MINIGBM_SW_WRITE_RARELY); |
| } |
| } |
| |
| handle_flag(&use_flags, BO_USE_CAMERA_WRITE, &bind, VIRGL_BIND_MINIGBM_CAMERA_WRITE); |
| handle_flag(&use_flags, BO_USE_CAMERA_READ, &bind, VIRGL_BIND_MINIGBM_CAMERA_READ); |
| handle_flag(&use_flags, BO_USE_HW_VIDEO_DECODER, &bind, |
| VIRGL_BIND_MINIGBM_HW_VIDEO_DECODER); |
| handle_flag(&use_flags, BO_USE_HW_VIDEO_ENCODER, &bind, |
| VIRGL_BIND_MINIGBM_HW_VIDEO_ENCODER); |
| |
| if (use_flags) |
| drv_log("Unhandled bo use flag: %llx\n", (unsigned long long)use_flags); |
| |
| return bind; |
| } |
| |
| static int virgl_3d_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, |
| uint64_t use_flags) |
| { |
| int ret; |
| size_t i; |
| uint32_t stride; |
| struct drm_virtgpu_resource_create res_create = { 0 }; |
| struct bo_metadata emulated_metadata; |
| |
| if (virgl_supports_combination_natively(bo->drv, format, use_flags)) { |
| stride = drv_stride_from_format(format, width, 0); |
| drv_bo_from_format(bo, stride, height, format); |
| } else { |
| assert(virgl_supports_combination_through_emulation(bo->drv, format, use_flags)); |
| |
| virgl_get_emulated_metadata(bo, &emulated_metadata); |
| |
| format = emulated_metadata.format; |
| width = emulated_metadata.width; |
| height = emulated_metadata.height; |
| for (i = 0; i < emulated_metadata.num_planes; i++) { |
| bo->meta.strides[i] = emulated_metadata.strides[i]; |
| bo->meta.offsets[i] = emulated_metadata.offsets[i]; |
| bo->meta.sizes[i] = emulated_metadata.sizes[i]; |
| } |
| bo->meta.total_size = emulated_metadata.total_size; |
| } |
| |
| /* |
| * Setting the target is intended to ensure this resource gets bound as a 2D |
| * texture in the host renderer's GL state. All of these resource properties are |
| * sent unchanged by the kernel to the host, which in turn sends them unchanged to |
| * virglrenderer. When virglrenderer makes a resource, it will convert the target |
| * enum to the equivalent one in GL and then bind the resource to that target. |
| */ |
| |
| res_create.target = PIPE_TEXTURE_2D; |
| res_create.format = translate_format(format); |
| res_create.bind = compute_virgl_bind_flags(use_flags, format); |
| res_create.width = width; |
| res_create.height = height; |
| |
| /* For virgl 3D */ |
| res_create.depth = 1; |
| res_create.array_size = 1; |
| res_create.last_level = 0; |
| res_create.nr_samples = 0; |
| |
| res_create.size = ALIGN(bo->meta.total_size, PAGE_SIZE); // PAGE_SIZE = 0x1000 |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_RESOURCE_CREATE, &res_create); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_RESOURCE_CREATE failed with %s\n", strerror(errno)); |
| return ret; |
| } |
| |
| for (uint32_t plane = 0; plane < bo->meta.num_planes; plane++) |
| bo->handles[plane].u32 = res_create.bo_handle; |
| |
| return 0; |
| } |
| |
| static void *virgl_3d_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags) |
| { |
| int ret; |
| struct drm_virtgpu_map gem_map = { 0 }; |
| |
| gem_map.handle = bo->handles[0].u32; |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_MAP, &gem_map); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_MAP failed with %s\n", strerror(errno)); |
| return MAP_FAILED; |
| } |
| |
| vma->length = bo->meta.total_size; |
| return mmap(0, bo->meta.total_size, drv_get_prot(map_flags), MAP_SHARED, bo->drv->fd, |
| gem_map.offset); |
| } |
| |
| static uint32_t virgl_3d_get_max_texture_2d_size(struct driver *drv) |
| { |
| struct virgl_priv *priv = (struct virgl_priv *)drv->priv; |
| |
| if (priv->caps.v2.max_texture_2d_size) |
| return priv->caps.v2.max_texture_2d_size; |
| |
| return UINT32_MAX; |
| } |
| |
| static int virgl_get_caps(struct driver *drv, union virgl_caps *caps, int *caps_is_v2) |
| { |
| int ret; |
| struct drm_virtgpu_get_caps cap_args = { 0 }; |
| |
| *caps_is_v2 = 0; |
| cap_args.addr = (unsigned long long)caps; |
| if (params[param_capset_fix].value) { |
| *caps_is_v2 = 1; |
| cap_args.cap_set_id = 2; |
| cap_args.size = sizeof(union virgl_caps); |
| } else { |
| cap_args.cap_set_id = 1; |
| cap_args.size = sizeof(struct virgl_caps_v1); |
| } |
| |
| ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_GET_CAPS, &cap_args); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_GET_CAPS failed with %s\n", strerror(errno)); |
| *caps_is_v2 = 0; |
| |
| // Fallback to v1 |
| cap_args.cap_set_id = 1; |
| cap_args.size = sizeof(struct virgl_caps_v1); |
| |
| ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_GET_CAPS, &cap_args); |
| if (ret) |
| drv_log("DRM_IOCTL_VIRTGPU_GET_CAPS failed with %s\n", strerror(errno)); |
| } |
| |
| return ret; |
| } |
| |
| static void virgl_init_params_and_caps(struct driver *drv) |
| { |
| struct virgl_priv *priv = (struct virgl_priv *)drv->priv; |
| if (params[param_3d].value) { |
| virgl_get_caps(drv, &priv->caps, &priv->caps_is_v2); |
| |
| // We use two criteria to determine whether host minigbm is used on the host for |
| // swapchain allocations. |
| // |
| // (1) Host minigbm is only available via virglrenderer, and only virglrenderer |
| // advertises capabilities. |
| // (2) Only host minigbm doesn't emulate YUV formats. Checking this is a bit of a |
| // proxy, but it works. |
| priv->host_gbm_enabled = |
| priv->caps.max_version > 0 && |
| virgl_supports_combination_natively(drv, DRM_FORMAT_NV12, BO_USE_TEXTURE); |
| } |
| } |
| |
| static int virgl_init(struct driver *drv) |
| { |
| struct virgl_priv *priv; |
| |
| priv = calloc(1, sizeof(*priv)); |
| if (!priv) |
| return -ENOMEM; |
| |
| drv->priv = priv; |
| |
| virgl_init_params_and_caps(drv); |
| |
| if (params[param_3d].value) { |
| /* This doesn't mean host can scanout everything, it just means host |
| * hypervisor can show it. */ |
| virgl_add_combinations(drv, render_target_formats, |
| ARRAY_SIZE(render_target_formats), &LINEAR_METADATA, |
| BO_USE_RENDER_MASK | BO_USE_SCANOUT); |
| virgl_add_combinations(drv, texture_source_formats, |
| ARRAY_SIZE(texture_source_formats), &LINEAR_METADATA, |
| BO_USE_TEXTURE_MASK); |
| /* NV12 with scanout must flow through virgl_add_combination, so that the native |
| * support is checked and scanout use_flag can be conditionally stripped. */ |
| virgl_add_combination(drv, DRM_FORMAT_NV12, &LINEAR_METADATA, |
| BO_USE_TEXTURE_MASK | BO_USE_CAMERA_READ | |
| BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_DECODER | |
| BO_USE_HW_VIDEO_ENCODER | BO_USE_SCANOUT); |
| } else { |
| /* Virtio primary plane only allows this format. */ |
| virgl_add_combination(drv, DRM_FORMAT_XRGB8888, &LINEAR_METADATA, |
| BO_USE_RENDER_MASK | BO_USE_SCANOUT); |
| /* Virtio cursor plane only allows this format and Chrome cannot live without |
| * ARGB888 renderable format. */ |
| virgl_add_combination(drv, DRM_FORMAT_ARGB8888, &LINEAR_METADATA, |
| BO_USE_RENDER_MASK | BO_USE_CURSOR); |
| /* Android needs more, but they cannot be bound as scanouts anymore after |
| * "drm/virtio: fix DRM_FORMAT_* handling" */ |
| virgl_add_combinations(drv, render_target_formats, |
| ARRAY_SIZE(render_target_formats), &LINEAR_METADATA, |
| BO_USE_RENDER_MASK); |
| virgl_add_combinations(drv, dumb_texture_source_formats, |
| ARRAY_SIZE(dumb_texture_source_formats), &LINEAR_METADATA, |
| BO_USE_TEXTURE_MASK); |
| drv_modify_combination(drv, DRM_FORMAT_NV12, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER); |
| } |
| |
| /* Android CTS tests require this. */ |
| virgl_add_combination(drv, DRM_FORMAT_RGB888, &LINEAR_METADATA, BO_USE_SW_MASK); |
| virgl_add_combination(drv, DRM_FORMAT_BGR888, &LINEAR_METADATA, BO_USE_SW_MASK); |
| virgl_add_combination(drv, DRM_FORMAT_P010, &LINEAR_METADATA, BO_USE_TEXTURE | |
| BO_USE_SW_MASK | BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE); |
| drv_modify_combination(drv, DRM_FORMAT_R8, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | BO_USE_HW_VIDEO_DECODER | |
| BO_USE_HW_VIDEO_ENCODER | BO_USE_GPU_DATA_BUFFER); |
| |
| if (!priv->host_gbm_enabled) { |
| drv_modify_combination(drv, DRM_FORMAT_ABGR8888, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER); |
| drv_modify_combination(drv, DRM_FORMAT_XBGR8888, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER); |
| drv_modify_combination(drv, DRM_FORMAT_NV21, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER); |
| drv_modify_combination(drv, DRM_FORMAT_R16, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER); |
| drv_modify_combination(drv, DRM_FORMAT_YVU420, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER); |
| drv_modify_combination(drv, DRM_FORMAT_YVU420_ANDROID, &LINEAR_METADATA, |
| BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE | |
| BO_USE_HW_VIDEO_DECODER | BO_USE_HW_VIDEO_ENCODER); |
| } |
| |
| return drv_modify_linear_combinations(drv); |
| } |
| |
| static void virgl_close(struct driver *drv) |
| { |
| free(drv->priv); |
| drv->priv = NULL; |
| } |
| |
| static int virgl_bo_create_blob(struct driver *drv, struct bo *bo) |
| { |
| int ret; |
| uint32_t stride; |
| uint32_t cur_blob_id; |
| uint32_t cmd[VIRGL_PIPE_RES_CREATE_SIZE + 1] = { 0 }; |
| struct drm_virtgpu_resource_create_blob drm_rc_blob = { 0 }; |
| struct virgl_priv *priv = (struct virgl_priv *)drv->priv; |
| |
| uint32_t blob_flags = VIRTGPU_BLOB_FLAG_USE_SHAREABLE; |
| if (bo->meta.use_flags & BO_USE_SW_MASK) |
| blob_flags |= VIRTGPU_BLOB_FLAG_USE_MAPPABLE; |
| |
| // For now, all blob use cases are cross device. When we add wider |
| // support for blobs, we can revisit making this unconditional. |
| blob_flags |= VIRTGPU_BLOB_FLAG_USE_CROSS_DEVICE; |
| |
| cur_blob_id = atomic_fetch_add(&priv->next_blob_id, 1); |
| stride = drv_stride_from_format(bo->meta.format, bo->meta.width, 0); |
| drv_bo_from_format(bo, stride, bo->meta.height, bo->meta.format); |
| bo->meta.total_size = ALIGN(bo->meta.total_size, PAGE_SIZE); |
| bo->meta.tiling = blob_flags; |
| |
| cmd[0] = VIRGL_CMD0(VIRGL_CCMD_PIPE_RESOURCE_CREATE, 0, VIRGL_PIPE_RES_CREATE_SIZE); |
| cmd[VIRGL_PIPE_RES_CREATE_TARGET] = PIPE_TEXTURE_2D; |
| cmd[VIRGL_PIPE_RES_CREATE_WIDTH] = bo->meta.width; |
| cmd[VIRGL_PIPE_RES_CREATE_HEIGHT] = bo->meta.height; |
| cmd[VIRGL_PIPE_RES_CREATE_FORMAT] = translate_format(bo->meta.format); |
| cmd[VIRGL_PIPE_RES_CREATE_BIND] = |
| compute_virgl_bind_flags(bo->meta.use_flags, bo->meta.format); |
| cmd[VIRGL_PIPE_RES_CREATE_DEPTH] = 1; |
| cmd[VIRGL_PIPE_RES_CREATE_BLOB_ID] = cur_blob_id; |
| |
| drm_rc_blob.cmd = (uint64_t)&cmd; |
| drm_rc_blob.cmd_size = 4 * (VIRGL_PIPE_RES_CREATE_SIZE + 1); |
| drm_rc_blob.size = bo->meta.total_size; |
| drm_rc_blob.blob_mem = VIRTGPU_BLOB_MEM_HOST3D; |
| drm_rc_blob.blob_flags = blob_flags; |
| drm_rc_blob.blob_id = cur_blob_id; |
| |
| ret = drmIoctl(drv->fd, DRM_IOCTL_VIRTGPU_RESOURCE_CREATE_BLOB, &drm_rc_blob); |
| if (ret < 0) { |
| drv_log("DRM_VIRTGPU_RESOURCE_CREATE_BLOB failed with %s\n", strerror(errno)); |
| return -errno; |
| } |
| |
| for (uint32_t plane = 0; plane < bo->meta.num_planes; plane++) |
| bo->handles[plane].u32 = drm_rc_blob.bo_handle; |
| |
| return 0; |
| } |
| |
| static bool should_use_blob(struct driver *drv, uint32_t format, uint64_t use_flags) |
| { |
| struct virgl_priv *priv = (struct virgl_priv *)drv->priv; |
| |
| // TODO(gurchetansingh): remove once all minigbm users are blob-safe |
| #ifndef VIRTIO_GPU_NEXT |
| return false; |
| #endif |
| |
| // Only use blob when host gbm is available |
| if (!priv->host_gbm_enabled) |
| return false; |
| |
| // Use regular resources if only the GPU needs efficient access. Blob resource is a better |
| // fit for BO_USE_GPU_DATA_BUFFER which is mapped to VIRGL_BIND_LINEAR. |
| if (!(use_flags & (BO_USE_SW_READ_OFTEN | BO_USE_SW_WRITE_OFTEN | BO_USE_LINEAR | |
| BO_USE_NON_GPU_HW | BO_USE_GPU_DATA_BUFFER))) |
| return false; |
| |
| switch (format) { |
| case DRM_FORMAT_R8: |
| // Formats with strictly defined strides are supported |
| return true; |
| case DRM_FORMAT_YVU420_ANDROID: |
| case DRM_FORMAT_NV12: |
| // Knowing buffer metadata at buffer creation isn't yet supported, so buffers |
| // can't be properly mapped into the guest. |
| return (use_flags & BO_USE_SW_MASK) == 0; |
| default: |
| return false; |
| } |
| } |
| |
| static int virgl_bo_create(struct bo *bo, uint32_t width, uint32_t height, uint32_t format, |
| uint64_t use_flags) |
| { |
| if (params[param_resource_blob].value && params[param_host_visible].value && |
| should_use_blob(bo->drv, format, use_flags)) |
| return virgl_bo_create_blob(bo->drv, bo); |
| |
| if (params[param_3d].value) |
| return virgl_3d_bo_create(bo, width, height, format, use_flags); |
| else |
| return virgl_2d_dumb_bo_create(bo, width, height, format, use_flags); |
| } |
| |
| static int virgl_bo_destroy(struct bo *bo) |
| { |
| if (params[param_3d].value) |
| return drv_gem_bo_destroy(bo); |
| else |
| return drv_dumb_bo_destroy(bo); |
| } |
| |
| static void *virgl_bo_map(struct bo *bo, struct vma *vma, size_t plane, uint32_t map_flags) |
| { |
| if (params[param_3d].value) |
| return virgl_3d_bo_map(bo, vma, plane, map_flags); |
| else |
| return drv_dumb_bo_map(bo, vma, plane, map_flags); |
| } |
| |
| static int virgl_bo_invalidate(struct bo *bo, struct mapping *mapping) |
| { |
| int ret; |
| size_t i; |
| struct drm_virtgpu_3d_transfer_from_host xfer = { 0 }; |
| struct drm_virtgpu_3d_wait waitcmd = { 0 }; |
| struct virtio_transfers_params xfer_params; |
| struct virgl_priv *priv = (struct virgl_priv *)bo->drv->priv; |
| uint64_t host_write_flags; |
| |
| if (!params[param_3d].value) |
| return 0; |
| |
| // Invalidate is only necessary if the host writes to the buffer. The encoder and |
| // decoder flags don't differentiate between input and output buffers, but we can |
| // use the format to determine whether this buffer could be encoder/decoder output. |
| host_write_flags = BO_USE_RENDERING | BO_USE_CAMERA_WRITE; |
| if (bo->meta.format == DRM_FORMAT_R8) |
| host_write_flags |= BO_USE_HW_VIDEO_ENCODER; |
| else |
| host_write_flags |= BO_USE_HW_VIDEO_DECODER; |
| |
| if ((bo->meta.use_flags & host_write_flags) == 0) |
| return 0; |
| |
| if (params[param_resource_blob].value && (bo->meta.tiling & VIRTGPU_BLOB_FLAG_USE_MAPPABLE)) |
| return 0; |
| |
| xfer.bo_handle = mapping->vma->handle; |
| |
| if (mapping->rect.x || mapping->rect.y) { |
| /* |
| * virglrenderer uses the box parameters and assumes that offset == 0 for planar |
| * images |
| */ |
| if (bo->meta.num_planes == 1) { |
| xfer.offset = |
| (bo->meta.strides[0] * mapping->rect.y) + |
| drv_bytes_per_pixel_from_format(bo->meta.format, 0) * mapping->rect.x; |
| } |
| } |
| |
| if ((bo->meta.use_flags & BO_USE_RENDERING) == 0) { |
| // Unfortunately, the kernel doesn't actually pass the guest layer_stride |
| // and guest stride to the host (compare virgl.h and virtgpu_drm.h). |
| // For gbm based resources, we can work around this by using the level field |
| // to pass the stride to virglrenderer's gbm transfer code. However, we need |
| // to avoid doing this for resources which don't rely on that transfer code, |
| // which is resources with the BO_USE_RENDERING flag set. |
| // TODO(b/145993887): Send also stride when the patches are landed |
| if (priv->host_gbm_enabled) |
| xfer.level = bo->meta.strides[0]; |
| } |
| |
| if (virgl_supports_combination_natively(bo->drv, bo->meta.format, bo->meta.use_flags)) { |
| xfer_params.xfers_needed = 1; |
| xfer_params.xfer_boxes[0] = mapping->rect; |
| } else { |
| assert(virgl_supports_combination_through_emulation(bo->drv, bo->meta.format, |
| bo->meta.use_flags)); |
| |
| virgl_get_emulated_transfers_params(bo, &mapping->rect, &xfer_params); |
| } |
| |
| for (i = 0; i < xfer_params.xfers_needed; i++) { |
| xfer.box.x = xfer_params.xfer_boxes[i].x; |
| xfer.box.y = xfer_params.xfer_boxes[i].y; |
| xfer.box.w = xfer_params.xfer_boxes[i].width; |
| xfer.box.h = xfer_params.xfer_boxes[i].height; |
| xfer.box.d = 1; |
| |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_TRANSFER_FROM_HOST, &xfer); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_TRANSFER_FROM_HOST failed with %s\n", |
| strerror(errno)); |
| return -errno; |
| } |
| } |
| |
| // The transfer needs to complete before invalidate returns so that any host changes |
| // are visible and to ensure the host doesn't overwrite subsequent guest changes. |
| // TODO(b/136733358): Support returning fences from transfers |
| waitcmd.handle = mapping->vma->handle; |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_WAIT, &waitcmd); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_WAIT failed with %s\n", strerror(errno)); |
| return -errno; |
| } |
| |
| return 0; |
| } |
| |
| static int virgl_bo_flush(struct bo *bo, struct mapping *mapping) |
| { |
| int ret; |
| size_t i; |
| struct drm_virtgpu_3d_transfer_to_host xfer = { 0 }; |
| struct drm_virtgpu_3d_wait waitcmd = { 0 }; |
| struct virtio_transfers_params xfer_params; |
| struct virgl_priv *priv = (struct virgl_priv *)bo->drv->priv; |
| |
| if (!params[param_3d].value) |
| return 0; |
| |
| if (!(mapping->vma->map_flags & BO_MAP_WRITE)) |
| return 0; |
| |
| if (params[param_resource_blob].value && (bo->meta.tiling & VIRTGPU_BLOB_FLAG_USE_MAPPABLE)) |
| return 0; |
| |
| xfer.bo_handle = mapping->vma->handle; |
| |
| if (mapping->rect.x || mapping->rect.y) { |
| /* |
| * virglrenderer uses the box parameters and assumes that offset == 0 for planar |
| * images |
| */ |
| if (bo->meta.num_planes == 1) { |
| xfer.offset = |
| (bo->meta.strides[0] * mapping->rect.y) + |
| drv_bytes_per_pixel_from_format(bo->meta.format, 0) * mapping->rect.x; |
| } |
| } |
| |
| // Unfortunately, the kernel doesn't actually pass the guest layer_stride and |
| // guest stride to the host (compare virgl.h and virtgpu_drm.h). We can use |
| // the level to work around this. |
| if (priv->host_gbm_enabled) |
| xfer.level = bo->meta.strides[0]; |
| |
| if (virgl_supports_combination_natively(bo->drv, bo->meta.format, bo->meta.use_flags)) { |
| xfer_params.xfers_needed = 1; |
| xfer_params.xfer_boxes[0] = mapping->rect; |
| } else { |
| assert(virgl_supports_combination_through_emulation(bo->drv, bo->meta.format, |
| bo->meta.use_flags)); |
| |
| virgl_get_emulated_transfers_params(bo, &mapping->rect, &xfer_params); |
| } |
| |
| for (i = 0; i < xfer_params.xfers_needed; i++) { |
| xfer.box.x = xfer_params.xfer_boxes[i].x; |
| xfer.box.y = xfer_params.xfer_boxes[i].y; |
| xfer.box.w = xfer_params.xfer_boxes[i].width; |
| xfer.box.h = xfer_params.xfer_boxes[i].height; |
| xfer.box.d = 1; |
| |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_TRANSFER_TO_HOST, &xfer); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_TRANSFER_TO_HOST failed with %s\n", |
| strerror(errno)); |
| return -errno; |
| } |
| } |
| |
| // If the buffer is only accessed by the host GPU, then the flush is ordered |
| // with subsequent commands. However, if other host hardware can access the |
| // buffer, we need to wait for the transfer to complete for consistency. |
| // TODO(b/136733358): Support returning fences from transfers |
| if (bo->meta.use_flags & BO_USE_NON_GPU_HW) { |
| waitcmd.handle = mapping->vma->handle; |
| |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_WAIT, &waitcmd); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_WAIT failed with %s\n", strerror(errno)); |
| return -errno; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void virgl_3d_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: |
| /* Camera subsystem requires NV12. */ |
| if (use_flags & (BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE)) { |
| *out_format = DRM_FORMAT_NV12; |
| } else { |
| /* 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: |
| /* All of our host drivers prefer NV12 as their flexible media format. |
| * If that changes, this will need to be modified. */ |
| *out_format = DRM_FORMAT_NV12; |
| /* fallthrough */ |
| case DRM_FORMAT_NV12: |
| case DRM_FORMAT_ABGR8888: |
| case DRM_FORMAT_ARGB8888: |
| case DRM_FORMAT_RGB565: |
| case DRM_FORMAT_XBGR8888: |
| case DRM_FORMAT_XRGB8888: |
| /* These are the scanout capable formats to the guest. Strip scanout use_flag if the |
| * host does not natively support scanout on the requested format. */ |
| if ((use_flags & BO_USE_SCANOUT) && |
| !virgl_supports_combination_natively(drv, format, BO_USE_SCANOUT)) |
| *out_use_flags &= ~BO_USE_SCANOUT; |
| break; |
| case DRM_FORMAT_YVU420_ANDROID: |
| *out_use_flags &= ~BO_USE_SCANOUT; |
| /* HACK: See b/172389166. Also see gbm_bo_create. */ |
| *out_use_flags |= BO_USE_LINEAR; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void virgl_2d_resolve_format_and_use_flags(uint32_t format, uint64_t use_flags, |
| uint32_t *out_format, uint64_t *out_use_flags) |
| { |
| *out_format = format; |
| *out_use_flags = use_flags; |
| |
| /* HACK: See crrev/c/1849773 */ |
| if (format != DRM_FORMAT_XRGB8888) |
| *out_use_flags &= ~BO_USE_SCANOUT; |
| |
| switch (format) { |
| case DRM_FORMAT_FLEX_IMPLEMENTATION_DEFINED: |
| /* Camera subsystem requires NV12. */ |
| if (use_flags & (BO_USE_CAMERA_READ | BO_USE_CAMERA_WRITE)) { |
| *out_format = DRM_FORMAT_NV12; |
| } else { |
| /* 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: |
| *out_format = DRM_FORMAT_YVU420_ANDROID; |
| /* fallthrough */ |
| case DRM_FORMAT_YVU420_ANDROID: |
| *out_use_flags &= ~BO_USE_SCANOUT; |
| /* HACK: See b/172389166. Also see gbm_bo_create. */ |
| *out_use_flags |= BO_USE_LINEAR; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static void virgl_resolve_format_and_use_flags(struct driver *drv, uint32_t format, |
| uint64_t use_flags, uint32_t *out_format, |
| uint64_t *out_use_flags) |
| { |
| if (params[param_3d].value) { |
| return virgl_3d_resolve_format_and_use_flags(drv, format, use_flags, out_format, |
| out_use_flags); |
| } else { |
| return virgl_2d_resolve_format_and_use_flags(format, use_flags, out_format, |
| out_use_flags); |
| } |
| } |
| |
| static int virgl_resource_info(struct bo *bo, uint32_t strides[DRV_MAX_PLANES], |
| uint32_t offsets[DRV_MAX_PLANES], uint64_t *format_modifier) |
| { |
| int ret; |
| struct drm_virtgpu_resource_info_cros res_info = { 0 }; |
| |
| if (!params[param_3d].value) |
| return 0; |
| |
| res_info.bo_handle = bo->handles[0].u32; |
| res_info.type = VIRTGPU_RESOURCE_INFO_TYPE_EXTENDED; |
| ret = drmIoctl(bo->drv->fd, DRM_IOCTL_VIRTGPU_RESOURCE_INFO_CROS, &res_info); |
| if (ret) { |
| drv_log("DRM_IOCTL_VIRTGPU_RESOURCE_INFO failed with %s\n", strerror(errno)); |
| return ret; |
| } |
| |
| for (uint32_t plane = 0; plane < DRV_MAX_PLANES; plane++) { |
| /* |
| * Currently, kernel v4.14 (Betty) doesn't have the extended resource info |
| * ioctl. |
| */ |
| if (!res_info.strides[plane]) |
| break; |
| |
| strides[plane] = res_info.strides[plane]; |
| offsets[plane] = res_info.offsets[plane]; |
| } |
| *format_modifier = res_info.format_modifier; |
| |
| return 0; |
| } |
| |
| static uint32_t virgl_get_max_texture_2d_size(struct driver *drv) |
| { |
| if (params[param_3d].value) |
| return virgl_3d_get_max_texture_2d_size(drv); |
| else |
| return VIRGL_2D_MAX_TEXTURE_2D_SIZE; |
| } |
| |
| const struct backend virtgpu_virgl = { .name = "virtgpu_virgl", |
| .init = virgl_init, |
| .close = virgl_close, |
| .bo_create = virgl_bo_create, |
| .bo_destroy = virgl_bo_destroy, |
| .bo_import = drv_prime_bo_import, |
| .bo_map = virgl_bo_map, |
| .bo_unmap = drv_bo_munmap, |
| .bo_invalidate = virgl_bo_invalidate, |
| .bo_flush = virgl_bo_flush, |
| .resolve_format_and_use_flags = |
| virgl_resolve_format_and_use_flags, |
| .resource_info = virgl_resource_info, |
| .get_max_texture_2d_size = virgl_get_max_texture_2d_size }; |