/* * Copyright © 2009 Corbin Simpson * Copyright © 2011 Marek Olšák * 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 * Marek Olšák */ #include "radeon_drm_bo.h" #include "radeon_drm_cs.h" #include "radeon_drm_public.h" #include "pipebuffer/pb_bufmgr.h" #include "util/u_memory.h" #include #include #ifndef RADEON_INFO_WANT_HYPERZ #define RADEON_INFO_WANT_HYPERZ 7 #endif #ifndef RADEON_INFO_WANT_CMASK #define RADEON_INFO_WANT_CMASK 8 #endif /* Enable/disable feature access for one command stream. * If enable == TRUE, return TRUE on success. * Otherwise, return FALSE. * * We basically do the same thing kernel does, because we have to deal * with multiple contexts (here command streams) backed by one winsys. */ static boolean radeon_set_fd_access(struct radeon_drm_cs *applier, struct radeon_drm_cs **owner, pipe_mutex *mutex, unsigned request, boolean enable) { struct drm_radeon_info info = {0}; unsigned value = enable ? 1 : 0; pipe_mutex_lock(*mutex); /* Early exit if we are sure the request will fail. */ if (enable) { if (*owner) { pipe_mutex_unlock(*mutex); return FALSE; } } else { if (*owner != applier) { pipe_mutex_unlock(*mutex); return FALSE; } } /* Pass through the request to the kernel. */ info.value = (unsigned long)&value; info.request = request; if (drmCommandWriteRead(applier->ws->fd, DRM_RADEON_INFO, &info, sizeof(info)) != 0) { pipe_mutex_unlock(*mutex); return FALSE; } /* Update the rights in the winsys. */ if (enable) { if (value) { *owner = applier; fprintf(stderr, "radeon: Acquired Hyper-Z.\n"); pipe_mutex_unlock(*mutex); return TRUE; } } else { *owner = NULL; fprintf(stderr, "radeon: Released Hyper-Z.\n"); } pipe_mutex_unlock(*mutex); return FALSE; } static boolean radeon_get_drm_value(int fd, unsigned request, const char *name, uint32_t *out) { struct drm_radeon_info info = {0}; int retval; info.value = (unsigned long)out; info.request = request; retval = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)); if (retval) { fprintf(stderr, "%s: Failed to get %s, error number %d\n", __func__, name, retval); return FALSE; } return TRUE; } /* Helper function to do the ioctls needed for setup and init. */ static boolean do_winsys_init(struct radeon_drm_winsys *ws) { struct drm_radeon_gem_info gem_info = {0}; int retval; drmVersionPtr version; /* 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 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. * * 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. */ /* Get DRM version. */ version = drmGetVersion(ws->fd); if (version->version_major != 2 || version->version_minor < 3) { fprintf(stderr, "%s: DRM version is %d.%d.%d but this driver is " "only compatible with 2.3.x (kernel 2.6.34) or later.\n", __FUNCTION__, version->version_major, version->version_minor, version->version_patchlevel); drmFreeVersion(version); return FALSE; } ws->info.drm_major = version->version_major; ws->info.drm_minor = version->version_minor; ws->info.drm_patchlevel = version->version_patchlevel; drmFreeVersion(version); /* Get PCI ID. */ if (!radeon_get_drm_value(ws->fd, RADEON_INFO_DEVICE_ID, "PCI ID", &ws->info.pci_id)) return FALSE; /* Check PCI ID. */ switch (ws->info.pci_id) { #define CHIPSET(pci_id, name, family) case pci_id: #include "pci_ids/r300_pci_ids.h" #undef CHIPSET break; default: fprintf(stderr, "radeon: Invalid PCI ID.\n"); return FALSE; } /* Get GEM info. */ retval = drmCommandWriteRead(ws->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); return FALSE; } ws->info.gart_size = gem_info.gart_size; ws->info.vram_size = gem_info.vram_size; ws->num_cpus = sysconf(_SC_NPROCESSORS_ONLN); /* Generation-specific queries. */ if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_GB_PIPES, "GB pipe count", &ws->info.r300_num_gb_pipes)) return FALSE; if (!radeon_get_drm_value(ws->fd, RADEON_INFO_NUM_Z_PIPES, "Z pipe count", &ws->info.r300_num_z_pipes)) return FALSE; return TRUE; } static void radeon_winsys_destroy(struct radeon_winsys *rws) { struct radeon_drm_winsys *ws = (struct radeon_drm_winsys*)rws; pipe_mutex_destroy(ws->hyperz_owner_mutex); pipe_mutex_destroy(ws->cmask_owner_mutex); ws->cman->destroy(ws->cman); ws->kman->destroy(ws->kman); FREE(rws); } static void radeon_query_info(struct radeon_winsys *rws, struct radeon_info *info) { *info = ((struct radeon_drm_winsys *)rws)->info; } static boolean radeon_cs_request_feature(struct radeon_winsys_cs *rcs, enum radeon_feature_id fid, boolean enable) { struct radeon_drm_cs *cs = radeon_drm_cs(rcs); switch (fid) { case RADEON_FID_R300_HYPERZ_ACCESS: if (debug_get_bool_option("RADEON_HYPERZ", FALSE)) { return radeon_set_fd_access(cs, &cs->ws->hyperz_owner, &cs->ws->hyperz_owner_mutex, RADEON_INFO_WANT_HYPERZ, enable); } else { return FALSE; } case RADEON_FID_R300_CMASK_ACCESS: if (debug_get_bool_option("RADEON_CMASK", FALSE)) { return radeon_set_fd_access(cs, &cs->ws->cmask_owner, &cs->ws->cmask_owner_mutex, RADEON_INFO_WANT_CMASK, enable); } else { return FALSE; } } return FALSE; } struct radeon_winsys *radeon_drm_winsys_create(int fd) { struct radeon_drm_winsys *ws = CALLOC_STRUCT(radeon_drm_winsys); if (!ws) { return NULL; } ws->fd = fd; if (!do_winsys_init(ws)) goto fail; /* Create managers. */ ws->kman = radeon_bomgr_create(ws); if (!ws->kman) goto fail; ws->cman = pb_cache_manager_create(ws->kman, 1000000); if (!ws->cman) goto fail; /* Set functions. */ ws->base.destroy = radeon_winsys_destroy; ws->base.query_info = radeon_query_info; ws->base.cs_request_feature = radeon_cs_request_feature; radeon_bomgr_init_functions(ws); radeon_drm_cs_init_functions(ws); pipe_mutex_init(ws->hyperz_owner_mutex); pipe_mutex_init(ws->cmask_owner_mutex); return &ws->base; fail: if (ws->cman) ws->cman->destroy(ws->cman); if (ws->kman) ws->kman->destroy(ws->kman); FREE(ws); return NULL; }