diff options
Diffstat (limited to 'src/gallium/winsys/radeon/drm/radeon_drm.c')
| -rw-r--r-- | src/gallium/winsys/radeon/drm/radeon_drm.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/gallium/winsys/radeon/drm/radeon_drm.c b/src/gallium/winsys/radeon/drm/radeon_drm.c new file mode 100644 index 00000000000..3dfcc5aef07 --- /dev/null +++ b/src/gallium/winsys/radeon/drm/radeon_drm.c @@ -0,0 +1,200 @@ +/* + * 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 "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 <sys/ioctl.h> + +static struct radeon_libdrm_winsys * +radeon_winsys_create(int fd) +{ + struct radeon_libdrm_winsys *rws; + + rws = CALLOC_STRUCT(radeon_libdrm_winsys); + if (rws == NULL) { + return NULL; + } + + rws->fd = fd; + return rws; +} + +/* Helper function to do the ioctls needed for setup and init. */ +static void do_ioctls(int fd, struct radeon_libdrm_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); + } + +/* XXX Remove this ifdef when libdrm version 2.4.19 becomes mandatory. */ +#ifdef RADEON_BO_FLAGS_MICRO_TILE_SQUARE + // Supported since 2.1.0. + winsys->squaretiling = version->version_major > 2 || + version->version_minor >= 1; +#endif + + 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_libdrm_winsys* rws; + boolean ret; + + rws = radeon_winsys_create(drmFB); + if (!rws) + return NULL; + + do_ioctls(drmFB, rws); + + /* The state tracker can organize a softpipe fallback if no hw + * driver is found. + */ + if (is_r3xx(rws->pci_id)) { + ret = radeon_setup_winsys(drmFB, rws); + if (ret == FALSE) + goto fail; + return r300_create_screen(&rws->base); + } + +fail: + FREE(rws); + return NULL; +} + +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, + .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 +} |