diff options
Diffstat (limited to 'vmwgfx/vmwgfx_drmi.c')
-rw-r--r-- | vmwgfx/vmwgfx_drmi.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/vmwgfx/vmwgfx_drmi.c b/vmwgfx/vmwgfx_drmi.c index 1e23f4a..496a16b 100644 --- a/vmwgfx/vmwgfx_drmi.c +++ b/vmwgfx/vmwgfx_drmi.c @@ -284,6 +284,109 @@ vmwgfx_dmabuf_destroy(struct vmwgfx_dmabuf *buf) } int +vmwgfx_dma(unsigned int host_x, unsigned int host_y, + RegionPtr region, struct vmwgfx_dmabuf *buf, + uint32_t buf_pitch, uint32_t surface_handle, int to_surface) +{ + BoxPtr clips = REGION_RECTS(region); + unsigned int num_clips = REGION_NUM_RECTS(region); + struct drm_vmw_execbuf_arg arg; + struct drm_vmw_fence_rep rep; + int ret; + unsigned int size; + unsigned i; + SVGA3dCopyBox *cb; + SVGA3dCmdSurfaceDMASuffix *suffix; + SVGA3dCmdSurfaceDMA *body; + struct vmwgfx_int_dmabuf *ibuf = vmwgfx_int_dmabuf(buf); + + struct { + SVGA3dCmdHeader header; + SVGA3dCmdSurfaceDMA body; + SVGA3dCopyBox cb; + } *cmd; + + if (num_clips == 0) + return 0; + + size = sizeof(*cmd) + (num_clips - 1) * sizeof(cmd->cb) + + sizeof(*suffix); + cmd = malloc(size); + if (!cmd) + return -1; + + cmd->header.id = SVGA_3D_CMD_SURFACE_DMA; + cmd->header.size = sizeof(cmd->body) + num_clips * sizeof(cmd->cb) + + sizeof(*suffix); + cb = &cmd->cb; + + suffix = (SVGA3dCmdSurfaceDMASuffix *) &cb[num_clips]; + suffix->suffixSize = sizeof(*suffix); + suffix->maximumOffset = (uint32_t) -1; + suffix->flags.discard = 0; + suffix->flags.unsynchronized = 0; + suffix->flags.reserved = 0; + + body = &cmd->body; + body->guest.ptr.gmrId = buf->gmr_id; + body->guest.ptr.offset = buf->gmr_offset; + body->guest.pitch = buf_pitch; + body->host.sid = surface_handle; + body->host.face = 0; + body->host.mipmap = 0; + + body->transfer = (to_surface ? SVGA3D_WRITE_HOST_VRAM : + SVGA3D_READ_HOST_VRAM); + + + for (i=0; i < num_clips; i++, cb++, clips++) { + cb->x = (uint16_t) clips->x1 + host_x; + cb->y = (uint16_t) clips->y1 + host_y; + cb->z = 0; + cb->srcx = (uint16_t) clips->x1; + cb->srcy = (uint16_t) clips->y1; + cb->srcz = 0; + cb->w = (uint16_t) (clips->x2 - clips->x1); + cb->h = (uint16_t) (clips->y2 - clips->y1); + cb->d = 1; +#if 0 + LogMessage(X_INFO, "DMA! x: %u y: %u srcx: %u srcy: %u w: %u h: %u %s\n", + cb->x, cb->y, cb->srcx, cb->srcy, cb->w, cb->h, + to_surface ? "to" : "from"); +#endif + + } + + memset(&arg, 0, sizeof(arg)); + memset(&rep, 0, sizeof(rep)); + + rep.error = -EFAULT; + arg.fence_rep = ((to_surface) ? 0UL : (unsigned long)&rep); + arg.commands = (unsigned long)cmd; + arg.command_size = size; + arg.throttle_us = 0; + arg.version = DRM_VMW_EXECBUF_VERSION; + + ret = drmCommandWrite(ibuf->drm_fd, DRM_VMW_EXECBUF, &arg, sizeof(arg)); + if (ret) { + LogMessage(X_ERROR, "DMA error %s.\n", strerror(-ret)); + } + + free(cmd); + + if (rep.error == 0) { + ret = vmwgfx_fence_wait(ibuf->drm_fd, rep.handle, TRUE); + if (ret) { + LogMessage(X_ERROR, "DMA from host fence wait error %s.\n", + strerror(-ret)); + vmwgfx_fence_unref(ibuf->drm_fd, rep.handle); + } + } + + return 0; +} + +int vmwgfx_get_param(int drm_fd, uint32_t param, uint64_t *out) { struct drm_vmw_getparam_arg gp_arg; |