/* * 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 * Joakim Sindholt */ #include "radeon_drm.h" #include "radeon_r300.h" #include "radeon_buffer.h" #include "r300_winsys.h" #include "trace/tr_drm.h" #include "util/u_memory.h" #include "xf86drm.h" #include /* 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; drmVersionPtr version; info.value = (unsigned long)⌖ /* We do things in a specific order here. * * DRM version first. We need to be sure we're running on a KMS chipset. * This is also for some features. * * Then, 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. */ version = drmGetVersion(fd); if (version->version_major != 2) { fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is " "only compatible with 2.x.x\n", __FUNCTION__, version->version_major, version->version_minor, version->version_patchlevel); drmFreeVersion(version); exit(1); } 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; winsys->vram_size = gem_info.vram_size; debug_printf("radeon: Successfully grabbed chipset info from kernel!\n" "radeon: DRM version: %d.%d.%d ID: 0x%04x GB: %d Z: %d\n" "radeon: GART size: %d MB VRAM size: %d MB\n", version->version_major, version->version_minor, version->version_patchlevel, winsys->pci_id, winsys->gb_pipes, winsys->z_pipes, winsys->gart_size / 1024 / 1024, winsys->vram_size / 1024 / 1024); drmFreeVersion(version); } /* 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); /* The state tracker can organize a softpipe fallback if no hw * driver is found. */ if (is_r3xx(rwinsys->pci_id)) { radeon_setup_winsys(drmFB, rwinsys); return r300_create_screen(rwinsys); } else { FREE(rwinsys); return NULL; } } boolean radeon_buffer_from_texture(struct drm_api* api, struct pipe_screen* screen, struct pipe_texture* texture, struct pipe_buffer** buffer, unsigned* stride) { /* XXX fix this */ return r300_get_texture_buffer(screen, 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, screen, 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, screen, texture, &buffer, stride)) { return FALSE; } *handle = ((struct radeon_pipe_buffer*)buffer)->bo->handle; pipe_buffer_reference(&buffer, NULL); return TRUE; } static void radeon_drm_api_destroy(struct drm_api *api) { return; } struct drm_api drm_api_hooks = { .name = "radeon", .driver_name = "radeon", .create_screen = radeon_create_screen, .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, .destroy = radeon_drm_api_destroy, }; struct drm_api* drm_api_create() { #ifdef DEBUG return trace_drm_create(&drm_api_hooks); #else return &drm_api_hooks; #endif }