| /* |
| * Copyright © 2009 Corbin Simpson |
| * All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining |
| * a copy of this software and associated documentation files (the |
| * "Software"), to deal in the Software without restriction, including |
| * without limitation the rights to use, copy, modify, merge, publish, |
| * distribute, sub license, and/or sell copies of the Software, and to |
| * permit persons to whom the Software is furnished to do so, subject to |
| * the following conditions: |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
| * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS |
| * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE |
| * USE OR OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * The above copyright notice and this permission notice (including the |
| * next paragraph) shall be included in all copies or substantial portions |
| * of the Software. |
| */ |
| /* |
| * Authors: |
| * Corbin Simpson <MostAwesomeDude@gmail.com> |
| * Joakim Sindholt <opensource@zhasha.com> |
| */ |
| |
| #include "softpipe/sp_winsys.h" |
| |
| #include "radeon_drm.h" |
| |
| /* Helper function to do the ioctls needed for setup and init. */ |
| static void do_ioctls(int fd, struct radeon_winsys* winsys) |
| { |
| struct drm_radeon_gem_info gem_info = {0}; |
| struct drm_radeon_info info = {0}; |
| int target = 0; |
| int retval; |
| |
| info.value = (unsigned long)⌖ |
| |
| /* We do things in a specific order here. |
| * |
| * First, the PCI ID. This is essential and should return usable numbers |
| * for all Radeons. If this fails, we probably got handed an FD for some |
| * non-Radeon card. |
| * |
| * The GB and Z pipe requests should always succeed, but they might not |
| * return sensical values for all chipsets, but that's alright because |
| * the pipe drivers already know that. |
| * |
| * The GEM info is actually bogus on the kernel side, as well as our side |
| * (see radeon_gem_info_ioctl in radeon_gem.c) but that's alright because |
| * we don't actually use the info for anything yet. |
| * XXX update the above when we can safely use vram_size instead of vram_visible */ |
| info.request = RADEON_INFO_DEVICE_ID; |
| retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)); |
| if (retval) { |
| fprintf(stderr, "%s: Failed to get PCI ID, " |
| "error number %d\n", __FUNCTION__, retval); |
| exit(1); |
| } |
| winsys->pci_id = target; |
| |
| info.request = RADEON_INFO_NUM_GB_PIPES; |
| retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)); |
| if (retval) { |
| fprintf(stderr, "%s: Failed to get GB pipe count, " |
| "error number %d\n", __FUNCTION__, retval); |
| exit(1); |
| } |
| winsys->gb_pipes = target; |
| |
| info.request = RADEON_INFO_NUM_Z_PIPES; |
| retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)); |
| if (retval) { |
| fprintf(stderr, "%s: Failed to get Z pipe count, " |
| "error number %d\n", __FUNCTION__, retval); |
| exit(1); |
| } |
| winsys->z_pipes = target; |
| |
| retval = drmCommandWriteRead(fd, DRM_RADEON_GEM_INFO, |
| &gem_info, sizeof(gem_info)); |
| if (retval) { |
| fprintf(stderr, "%s: Failed to get MM info, error number %d\n", |
| __FUNCTION__, retval); |
| exit(1); |
| } |
| winsys->gart_size = gem_info.gart_size; |
| /* XXX */ |
| winsys->vram_size = gem_info.vram_visible; |
| } |
| |
| /* Guess at whether this chipset should use r300g. |
| * |
| * I believe that this check is valid, but I haven't been exhaustive. */ |
| static boolean is_r3xx(int pciid) |
| { |
| return (pciid > 0x3150) && (pciid < 0x796f); |
| } |
| |
| /* Create a pipe_screen. */ |
| struct pipe_screen* radeon_create_screen(struct drm_api* api, |
| int drmFB, |
| struct drm_create_screen_arg *arg) |
| { |
| struct radeon_winsys* rwinsys = radeon_pipe_winsys(drmFB); |
| do_ioctls(drmFB, rwinsys); |
| |
| if (!is_r3xx(rwinsys->pci_id) || |
| debug_get_bool_option("RADEON_SOFTPIPE", FALSE)) { |
| return softpipe_create_screen((struct pipe_winsys*)rwinsys); |
| } else { |
| radeon_setup_winsys(drmFB, rwinsys); |
| return r300_create_screen(rwinsys); |
| } |
| } |
| |
| /* Create a pipe_context. */ |
| struct pipe_context* radeon_create_context(struct drm_api* api, |
| struct pipe_screen* screen) |
| { |
| struct radeon_winsys* rwinsys = (struct radeon_winsys*)screen->winsys; |
| |
| if (!is_r3xx(rwinsys->pci_id) || |
| debug_get_bool_option("RADEON_SOFTPIPE", FALSE)) { |
| return softpipe_create(screen); |
| } else { |
| return r300_create_context(screen, rwinsys); |
| } |
| } |
| |
| boolean radeon_buffer_from_texture(struct drm_api* api, |
| struct pipe_texture* texture, |
| struct pipe_buffer** buffer, |
| unsigned* stride) |
| { |
| /* XXX fix this */ |
| return r300_get_texture_buffer(texture, buffer, stride); |
| } |
| |
| /* Create a buffer from a handle. */ |
| /* XXX what's up with name? */ |
| struct pipe_buffer* radeon_buffer_from_handle(struct drm_api* api, |
| struct pipe_screen* screen, |
| const char* name, |
| unsigned handle) |
| { |
| struct radeon_bo_manager* bom = |
| ((struct radeon_winsys*)screen->winsys)->priv->bom; |
| struct radeon_pipe_buffer* radeon_buffer; |
| struct radeon_bo* bo = NULL; |
| |
| bo = radeon_bo_open(bom, handle, 0, 0, 0, 0); |
| if (bo == NULL) { |
| return NULL; |
| } |
| |
| radeon_buffer = CALLOC_STRUCT(radeon_pipe_buffer); |
| if (radeon_buffer == NULL) { |
| radeon_bo_unref(bo); |
| return NULL; |
| } |
| |
| pipe_reference_init(&radeon_buffer->base.reference, 1); |
| radeon_buffer->base.screen = screen; |
| radeon_buffer->base.usage = PIPE_BUFFER_USAGE_PIXEL; |
| radeon_buffer->bo = bo; |
| return &radeon_buffer->base; |
| } |
| |
| static struct pipe_texture* |
| radeon_texture_from_shared_handle(struct drm_api *api, |
| struct pipe_screen *screen, |
| struct pipe_texture *templ, |
| const char *name, |
| unsigned stride, |
| unsigned handle) |
| { |
| struct pipe_buffer *buffer; |
| struct pipe_texture *blanket; |
| |
| buffer = radeon_buffer_from_handle(api, screen, name, handle); |
| if (!buffer) { |
| return NULL; |
| } |
| |
| blanket = screen->texture_blanket(screen, templ, &stride, buffer); |
| |
| pipe_buffer_reference(&buffer, NULL); |
| |
| return blanket; |
| } |
| |
| static boolean radeon_shared_handle_from_texture(struct drm_api *api, |
| struct pipe_screen *screen, |
| struct pipe_texture *texture, |
| unsigned *stride, |
| unsigned *handle) |
| { |
| int retval, fd; |
| struct drm_gem_flink flink; |
| struct radeon_pipe_buffer* radeon_buffer; |
| struct pipe_buffer *buffer = NULL; |
| |
| if (!radeon_buffer_from_texture(api, texture, &buffer, stride)) { |
| return FALSE; |
| } |
| |
| radeon_buffer = (struct radeon_pipe_buffer*)buffer; |
| if (!radeon_buffer->flinked) { |
| fd = ((struct radeon_winsys*)screen->winsys)->priv->fd; |
| |
| flink.handle = radeon_buffer->bo->handle; |
| |
| retval = ioctl(fd, DRM_IOCTL_GEM_FLINK, &flink); |
| if (retval) { |
| debug_printf("radeon: DRM_IOCTL_GEM_FLINK failed, error %d\n", |
| retval); |
| return FALSE; |
| } |
| |
| radeon_buffer->flink = flink.name; |
| radeon_buffer->flinked = TRUE; |
| } |
| |
| *handle = radeon_buffer->flink; |
| return TRUE; |
| } |
| |
| static boolean radeon_local_handle_from_texture(struct drm_api *api, |
| struct pipe_screen *screen, |
| struct pipe_texture *texture, |
| unsigned *stride, |
| unsigned *handle) |
| { |
| struct pipe_buffer *buffer = NULL; |
| if (!radeon_buffer_from_texture(api, texture, &buffer, stride)) { |
| return FALSE; |
| } |
| |
| *handle = ((struct radeon_pipe_buffer*)buffer)->bo->handle; |
| |
| pipe_buffer_reference(&buffer, NULL); |
| |
| return TRUE; |
| } |
| |
| struct drm_api drm_api_hooks = { |
| .name = "radeon", |
| .create_screen = radeon_create_screen, |
| .create_context = radeon_create_context, |
| .texture_from_shared_handle = radeon_texture_from_shared_handle, |
| .shared_handle_from_texture = radeon_shared_handle_from_texture, |
| .local_handle_from_texture = radeon_local_handle_from_texture, |
| }; |
| |
| struct drm_api* drm_api_create() |
| { |
| #ifdef DEBUG |
| return trace_drm_create(&drm_api_hooks); |
| #else |
| return &drm_api_hooks; |
| #endif |
| } |