| /* |
| * Copyright (C) 2013 Rob Clark <robclark@freedesktop.org> |
| * |
| * This code is derived from the following files. |
| * |
| * * src/glx/dri3_common.c |
| * Copyright © 2013 Keith Packard |
| * |
| * * src/egl/drivers/dri2/common.c |
| * * src/gbm/backends/dri/driver_name.c |
| * Copyright © 2011 Intel Corporation |
| * |
| * Authors: |
| * Kristian Høgsberg <krh@bitplanet.net> |
| * Benjamin Franzke <benjaminfranzke@googlemail.com> |
| * |
| * * src/gallium/targets/egl-static/egl.c |
| * Copyright (C) 2010-2011 LunarG Inc. |
| * |
| * Authors: |
| * Chia-I Wu <olv@lunarg.com> |
| * |
| * * src/gallium/state_trackers/egl/drm/native_drm.c |
| * Copyright (C) 2010 Chia-I Wu <olv@0xlab.org> |
| * |
| * * src/egl/drivers/dri2/platform_android.c |
| * |
| * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com> |
| * Copyright (C) 2010-2011 LunarG Inc. |
| * |
| * Based on platform_x11, which has |
| * |
| * Copyright © 2011 Intel Corporation |
| * |
| * * src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c |
| * Copyright 2011 Intel Corporation |
| * Copyright 2012 Francisco Jerez |
| * All Rights Reserved. |
| * |
| * Authors: |
| * Kristian Høgsberg <krh@bitplanet.net> |
| * Benjamin Franzke <benjaminfranzke@googlemail.com> |
| * |
| * 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, sublicense, |
| * 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 above copyright notice and this permission notice (including the next |
| * paragraph) shall be included in all copies or substantial portions of the |
| * Software. |
| * |
| * 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 NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHORS OR COPYRIGHT HOLDERS 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. |
| * |
| * Authors: |
| * Rob Clark <robclark@freedesktop.org> |
| */ |
| |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| #include <stdarg.h> |
| #include <stdio.h> |
| #include <string.h> |
| #ifdef HAVE_LIBUDEV |
| #include <assert.h> |
| #include <dlfcn.h> |
| #include <unistd.h> |
| #include <stdlib.h> |
| #ifdef USE_DRICONF |
| #include "xmlconfig.h" |
| #include "xmlpool.h" |
| #endif |
| #endif |
| #ifdef HAVE_SYSFS |
| #include <sys/types.h> |
| #endif |
| #include "loader.h" |
| |
| #ifdef HAVE_LIBDRM |
| #include <xf86drm.h> |
| #endif |
| |
| #define __IS_LOADER |
| #include "pci_id_driver_map.h" |
| |
| static void default_logger(int level, const char *fmt, ...) |
| { |
| if (level <= _LOADER_WARNING) { |
| va_list args; |
| va_start(args, fmt); |
| vfprintf(stderr, fmt, args); |
| va_end(args); |
| } |
| } |
| |
| static void (*log_)(int level, const char *fmt, ...) = default_logger; |
| |
| int |
| loader_open_device(const char *device_name) |
| { |
| int fd; |
| #ifdef O_CLOEXEC |
| fd = open(device_name, O_RDWR | O_CLOEXEC); |
| if (fd == -1 && errno == EINVAL) |
| #endif |
| { |
| fd = open(device_name, O_RDWR); |
| if (fd != -1) |
| fcntl(fd, F_SETFD, fcntl(fd, F_GETFD) | FD_CLOEXEC); |
| } |
| return fd; |
| } |
| |
| #ifdef HAVE_LIBUDEV |
| #include <libudev.h> |
| |
| static void *udev_handle = NULL; |
| |
| static void * |
| udev_dlopen_handle(void) |
| { |
| char name[80]; |
| unsigned flags = RTLD_NOLOAD | RTLD_LOCAL | RTLD_LAZY; |
| int version; |
| |
| /* libudev.so.1 changed the return types of the two unref functions |
| * from voids to pointers. We don't use those return values, and the |
| * only ABI I've heard that cares about this kind of change (calling |
| * a function with a void * return that actually only returns void) |
| * might be ia64. |
| */ |
| |
| /* First try opening an already linked libudev, then try loading one */ |
| do { |
| for (version = 1; version >= 0; version--) { |
| snprintf(name, sizeof(name), "libudev.so.%d", version); |
| udev_handle = dlopen(name, flags); |
| if (udev_handle) |
| return udev_handle; |
| } |
| |
| if ((flags & RTLD_NOLOAD) == 0) |
| break; |
| |
| flags &= ~RTLD_NOLOAD; |
| } while (1); |
| |
| log_(_LOADER_WARNING, |
| "Couldn't dlopen libudev.so.1 or " |
| "libudev.so.0, driver detection may be broken.\n"); |
| return NULL; |
| } |
| |
| static int dlsym_failed = 0; |
| |
| static void * |
| checked_dlsym(void *dlopen_handle, const char *name) |
| { |
| void *result = dlsym(dlopen_handle, name); |
| if (!result) |
| dlsym_failed = 1; |
| return result; |
| } |
| |
| #define UDEV_SYMBOL(ret, name, args) \ |
| ret (*name) args = checked_dlsym(udev_dlopen_handle(), #name); |
| |
| |
| static inline struct udev_device * |
| udev_device_new_from_fd(struct udev *udev, int fd) |
| { |
| struct udev_device *device; |
| struct stat buf; |
| UDEV_SYMBOL(struct udev_device *, udev_device_new_from_devnum, |
| (struct udev *udev, char type, dev_t devnum)); |
| |
| if (dlsym_failed) |
| return NULL; |
| |
| if (fstat(fd, &buf) < 0) { |
| log_(_LOADER_WARNING, "MESA-LOADER: failed to stat fd %d\n", fd); |
| return NULL; |
| } |
| |
| device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev); |
| if (device == NULL) { |
| log_(_LOADER_WARNING, |
| "MESA-LOADER: could not create udev device for fd %d\n", fd); |
| return NULL; |
| } |
| |
| return device; |
| } |
| |
| static int |
| libudev_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id) |
| { |
| struct udev *udev = NULL; |
| struct udev_device *device = NULL, *parent; |
| const char *pci_id; |
| UDEV_SYMBOL(struct udev *, udev_new, (void)); |
| UDEV_SYMBOL(struct udev_device *, udev_device_get_parent, |
| (struct udev_device *)); |
| UDEV_SYMBOL(const char *, udev_device_get_property_value, |
| (struct udev_device *, const char *)); |
| UDEV_SYMBOL(struct udev_device *, udev_device_unref, |
| (struct udev_device *)); |
| UDEV_SYMBOL(struct udev *, udev_unref, (struct udev *)); |
| |
| *chip_id = -1; |
| |
| if (dlsym_failed) |
| return 0; |
| |
| udev = udev_new(); |
| device = udev_device_new_from_fd(udev, fd); |
| if (!device) |
| goto out; |
| |
| parent = udev_device_get_parent(device); |
| if (parent == NULL) { |
| log_(_LOADER_WARNING, "MESA-LOADER: could not get parent device\n"); |
| goto out; |
| } |
| |
| pci_id = udev_device_get_property_value(parent, "PCI_ID"); |
| if (pci_id == NULL) { |
| log_(_LOADER_INFO, "MESA-LOADER: no PCI ID\n"); |
| *chip_id = -1; |
| goto out; |
| } else if (sscanf(pci_id, "%x:%x", vendor_id, chip_id) != 2) { |
| log_(_LOADER_WARNING, "MESA-LOADER: malformed PCI ID\n"); |
| *chip_id = -1; |
| goto out; |
| } |
| |
| out: |
| if (device) |
| udev_device_unref(device); |
| if (udev) |
| udev_unref(udev); |
| |
| return (*chip_id >= 0); |
| } |
| |
| static char * |
| get_render_node_from_id_path_tag(struct udev *udev, |
| char *id_path_tag, |
| char another_tag) |
| { |
| struct udev_device *device; |
| struct udev_enumerate *e; |
| struct udev_list_entry *entry; |
| const char *path, *id_path_tag_tmp; |
| char *path_res; |
| char found = 0; |
| UDEV_SYMBOL(struct udev_enumerate *, udev_enumerate_new, |
| (struct udev *)); |
| UDEV_SYMBOL(int, udev_enumerate_add_match_subsystem, |
| (struct udev_enumerate *, const char *)); |
| UDEV_SYMBOL(int, udev_enumerate_add_match_sysname, |
| (struct udev_enumerate *, const char *)); |
| UDEV_SYMBOL(int, udev_enumerate_scan_devices, |
| (struct udev_enumerate *)); |
| UDEV_SYMBOL(struct udev_list_entry *, udev_enumerate_get_list_entry, |
| (struct udev_enumerate *)); |
| UDEV_SYMBOL(void, udev_enumerate_unref, |
| (struct udev_enumerate *)); |
| UDEV_SYMBOL(struct udev_list_entry *, udev_list_entry_get_next, |
| (struct udev_list_entry *)); |
| UDEV_SYMBOL(const char *, udev_list_entry_get_name, |
| (struct udev_list_entry *)); |
| UDEV_SYMBOL(struct udev_device *, udev_device_new_from_syspath, |
| (struct udev *, const char *)); |
| UDEV_SYMBOL(const char *, udev_device_get_property_value, |
| (struct udev_device *, const char *)); |
| UDEV_SYMBOL(const char *, udev_device_get_devnode, |
| (struct udev_device *)); |
| UDEV_SYMBOL(struct udev_device *, udev_device_unref, |
| (struct udev_device *)); |
| |
| e = udev_enumerate_new(udev); |
| udev_enumerate_add_match_subsystem(e, "drm"); |
| udev_enumerate_add_match_sysname(e, "render*"); |
| |
| udev_enumerate_scan_devices(e); |
| udev_list_entry_foreach(entry, udev_enumerate_get_list_entry(e)) { |
| path = udev_list_entry_get_name(entry); |
| device = udev_device_new_from_syspath(udev, path); |
| if (!device) |
| continue; |
| id_path_tag_tmp = udev_device_get_property_value(device, "ID_PATH_TAG"); |
| if (id_path_tag_tmp) { |
| if ((!another_tag && !strcmp(id_path_tag, id_path_tag_tmp)) || |
| (another_tag && strcmp(id_path_tag, id_path_tag_tmp))) { |
| found = 1; |
| break; |
| } |
| } |
| udev_device_unref(device); |
| } |
| |
| udev_enumerate_unref(e); |
| |
| if (found) { |
| path_res = strdup(udev_device_get_devnode(device)); |
| udev_device_unref(device); |
| return path_res; |
| } |
| return NULL; |
| } |
| |
| static char * |
| get_id_path_tag_from_fd(struct udev *udev, int fd) |
| { |
| struct udev_device *device; |
| const char *id_path_tag_tmp; |
| char *id_path_tag; |
| UDEV_SYMBOL(const char *, udev_device_get_property_value, |
| (struct udev_device *, const char *)); |
| UDEV_SYMBOL(struct udev_device *, udev_device_unref, |
| (struct udev_device *)); |
| |
| device = udev_device_new_from_fd(udev, fd); |
| if (!device) |
| return NULL; |
| |
| id_path_tag_tmp = udev_device_get_property_value(device, "ID_PATH_TAG"); |
| if (!id_path_tag_tmp) |
| return NULL; |
| |
| id_path_tag = strdup(id_path_tag_tmp); |
| |
| udev_device_unref(device); |
| return id_path_tag; |
| } |
| |
| #ifdef USE_DRICONF |
| const char __driConfigOptionsLoader[] = |
| DRI_CONF_BEGIN |
| DRI_CONF_SECTION_INITIALIZATION |
| DRI_CONF_DEVICE_ID_PATH_TAG() |
| DRI_CONF_SECTION_END |
| DRI_CONF_END; |
| #endif |
| |
| int loader_get_user_preferred_fd(int default_fd, int *different_device) |
| { |
| struct udev *udev; |
| #ifdef USE_DRICONF |
| driOptionCache defaultInitOptions; |
| driOptionCache userInitOptions; |
| #endif |
| const char *dri_prime = getenv("DRI_PRIME"); |
| char *prime = NULL; |
| int is_different_device = 0, fd = default_fd; |
| char *default_device_id_path_tag; |
| char *device_name = NULL; |
| char another_tag = 0; |
| UDEV_SYMBOL(struct udev *, udev_new, (void)); |
| UDEV_SYMBOL(struct udev *, udev_unref, (struct udev *)); |
| |
| if (dri_prime) |
| prime = strdup(dri_prime); |
| #ifdef USE_DRICONF |
| else { |
| driParseOptionInfo(&defaultInitOptions, __driConfigOptionsLoader); |
| driParseConfigFiles(&userInitOptions, &defaultInitOptions, 0, "loader"); |
| if (driCheckOption(&userInitOptions, "device_id", DRI_STRING)) |
| prime = strdup(driQueryOptionstr(&userInitOptions, "device_id")); |
| driDestroyOptionCache(&userInitOptions); |
| driDestroyOptionInfo(&defaultInitOptions); |
| } |
| #endif |
| |
| if (prime == NULL) { |
| *different_device = 0; |
| return default_fd; |
| } |
| |
| udev = udev_new(); |
| if (!udev) |
| goto prime_clean; |
| |
| default_device_id_path_tag = get_id_path_tag_from_fd(udev, default_fd); |
| if (!default_device_id_path_tag) |
| goto udev_clean; |
| |
| is_different_device = 1; |
| /* two format are supported: |
| * "1": choose any other card than the card used by default. |
| * id_path_tag: (for example "pci-0000_02_00_0") choose the card |
| * with this id_path_tag. |
| */ |
| if (!strcmp(prime,"1")) { |
| free(prime); |
| prime = strdup(default_device_id_path_tag); |
| /* request a card with a different card than the default card */ |
| another_tag = 1; |
| } else if (!strcmp(default_device_id_path_tag, prime)) |
| /* we are to get a new fd (render-node) of the same device */ |
| is_different_device = 0; |
| |
| device_name = get_render_node_from_id_path_tag(udev, |
| prime, |
| another_tag); |
| if (device_name == NULL) { |
| is_different_device = 0; |
| goto default_device_clean; |
| } |
| |
| fd = loader_open_device(device_name); |
| if (fd >= 0) { |
| close(default_fd); |
| } else { |
| fd = default_fd; |
| is_different_device = 0; |
| } |
| free(device_name); |
| |
| default_device_clean: |
| free(default_device_id_path_tag); |
| udev_clean: |
| udev_unref(udev); |
| prime_clean: |
| free(prime); |
| |
| *different_device = is_different_device; |
| return fd; |
| } |
| #else |
| int loader_get_user_preferred_fd(int default_fd, int *different_device) |
| { |
| *different_device = 0; |
| return default_fd; |
| } |
| #endif |
| |
| #if defined(HAVE_SYSFS) || defined(HAVE_LIBDRM) |
| static int |
| dev_node_from_fd(int fd, unsigned int *maj, unsigned int *min) |
| { |
| struct stat buf; |
| |
| if (fstat(fd, &buf) < 0) { |
| log_(_LOADER_WARNING, "MESA-LOADER: failed to stat fd %d\n", fd); |
| return -1; |
| } |
| |
| if (!S_ISCHR(buf.st_mode)) { |
| log_(_LOADER_WARNING, "MESA-LOADER: fd %d not a character device\n", fd); |
| return -1; |
| } |
| |
| *maj = major(buf.st_rdev); |
| *min = minor(buf.st_rdev); |
| |
| return 0; |
| } |
| #endif |
| |
| #if defined(HAVE_SYSFS) |
| static int |
| sysfs_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id) |
| { |
| unsigned int maj, min; |
| FILE *f; |
| char buf[0x40]; |
| |
| if (dev_node_from_fd(fd, &maj, &min) < 0) { |
| *chip_id = -1; |
| return 0; |
| } |
| |
| snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/device/vendor", maj, min); |
| if (!(f = fopen(buf, "r"))) { |
| *chip_id = -1; |
| return 0; |
| } |
| if (fscanf(f, "%x", vendor_id) != 1) { |
| *chip_id = -1; |
| fclose(f); |
| return 0; |
| } |
| fclose(f); |
| snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/device/device", maj, min); |
| if (!(f = fopen(buf, "r"))) { |
| *chip_id = -1; |
| return 0; |
| } |
| if (fscanf(f, "%x", chip_id) != 1) { |
| *chip_id = -1; |
| fclose(f); |
| return 0; |
| } |
| fclose(f); |
| return 1; |
| } |
| #endif |
| |
| #if defined(HAVE_LIBDRM) |
| /* for i915 */ |
| #include <i915_drm.h> |
| /* for radeon */ |
| #include <radeon_drm.h> |
| |
| static int |
| drm_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id) |
| { |
| drmVersionPtr version; |
| |
| *chip_id = -1; |
| |
| version = drmGetVersion(fd); |
| if (!version) { |
| log_(_LOADER_WARNING, "MESA-LOADER: invalid drm fd\n"); |
| return 0; |
| } |
| if (!version->name) { |
| log_(_LOADER_WARNING, "MESA-LOADER: unable to determine the driver name\n"); |
| drmFreeVersion(version); |
| return 0; |
| } |
| |
| if (strcmp(version->name, "i915") == 0) { |
| struct drm_i915_getparam gp; |
| int ret; |
| |
| *vendor_id = 0x8086; |
| |
| memset(&gp, 0, sizeof(gp)); |
| gp.param = I915_PARAM_CHIPSET_ID; |
| gp.value = chip_id; |
| ret = drmCommandWriteRead(fd, DRM_I915_GETPARAM, &gp, sizeof(gp)); |
| if (ret) { |
| log_(_LOADER_WARNING, "MESA-LOADER: failed to get param for i915\n"); |
| *chip_id = -1; |
| } |
| } |
| else if (strcmp(version->name, "radeon") == 0) { |
| struct drm_radeon_info info; |
| int ret; |
| |
| *vendor_id = 0x1002; |
| |
| memset(&info, 0, sizeof(info)); |
| info.request = RADEON_INFO_DEVICE_ID; |
| info.value = (unsigned long) chip_id; |
| ret = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info, sizeof(info)); |
| if (ret) { |
| log_(_LOADER_WARNING, "MESA-LOADER: failed to get info for radeon\n"); |
| *chip_id = -1; |
| } |
| } |
| else if (strcmp(version->name, "nouveau") == 0) { |
| *vendor_id = 0x10de; |
| /* not used */ |
| *chip_id = 0; |
| } |
| else if (strcmp(version->name, "vmwgfx") == 0) { |
| *vendor_id = 0x15ad; |
| /* assume SVGA II */ |
| *chip_id = 0x0405; |
| } |
| |
| drmFreeVersion(version); |
| |
| return (*chip_id >= 0); |
| } |
| #endif |
| |
| |
| int |
| loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id) |
| { |
| #if HAVE_LIBUDEV |
| if (libudev_get_pci_id_for_fd(fd, vendor_id, chip_id)) |
| return 1; |
| #endif |
| #if HAVE_SYSFS |
| if (sysfs_get_pci_id_for_fd(fd, vendor_id, chip_id)) |
| return 1; |
| #endif |
| #if HAVE_LIBDRM |
| if (drm_get_pci_id_for_fd(fd, vendor_id, chip_id)) |
| return 1; |
| #endif |
| return 0; |
| } |
| |
| |
| #ifdef HAVE_LIBUDEV |
| static char * |
| libudev_get_device_name_for_fd(int fd) |
| { |
| char *device_name = NULL; |
| struct udev *udev; |
| struct udev_device *device; |
| const char *const_device_name; |
| UDEV_SYMBOL(struct udev *, udev_new, (void)); |
| UDEV_SYMBOL(const char *, udev_device_get_devnode, |
| (struct udev_device *)); |
| UDEV_SYMBOL(struct udev_device *, udev_device_unref, |
| (struct udev_device *)); |
| UDEV_SYMBOL(struct udev *, udev_unref, (struct udev *)); |
| |
| if (dlsym_failed) |
| return NULL; |
| |
| udev = udev_new(); |
| device = udev_device_new_from_fd(udev, fd); |
| if (device == NULL) |
| return NULL; |
| |
| const_device_name = udev_device_get_devnode(device); |
| if (!const_device_name) |
| goto out; |
| device_name = strdup(const_device_name); |
| |
| out: |
| udev_device_unref(device); |
| udev_unref(udev); |
| return device_name; |
| } |
| #endif |
| |
| |
| #if HAVE_SYSFS |
| static char * |
| sysfs_get_device_name_for_fd(int fd) |
| { |
| char *device_name = NULL; |
| unsigned int maj, min; |
| FILE *f; |
| char buf[0x40]; |
| static const char match[9] = "\0DEVNAME="; |
| int expected = 1; |
| |
| if (dev_node_from_fd(fd, &maj, &min) < 0) |
| return NULL; |
| |
| snprintf(buf, sizeof(buf), "/sys/dev/char/%d:%d/uevent", maj, min); |
| if (!(f = fopen(buf, "r"))) |
| return NULL; |
| |
| while (expected < sizeof(match)) { |
| int c = getc(f); |
| |
| if (c == EOF) { |
| fclose(f); |
| return NULL; |
| } else if (c == match[expected] ) |
| expected++; |
| else |
| expected = 0; |
| } |
| |
| strcpy(buf, "/dev/"); |
| if (fgets(buf + 5, sizeof(buf) - 5, f)) |
| device_name = strdup(buf); |
| |
| fclose(f); |
| return device_name; |
| } |
| #endif |
| |
| #if defined(HAVE_LIBDRM) |
| static char * |
| drm_get_device_name_for_fd(int fd) |
| { |
| unsigned int maj, min; |
| char buf[0x40]; |
| int n; |
| |
| if (dev_node_from_fd(fd, &maj, &min) < 0) |
| return NULL; |
| |
| n = snprintf(buf, sizeof(buf), DRM_DEV_NAME, DRM_DIR_NAME, min); |
| if (n == -1 || n >= sizeof(buf)) |
| return NULL; |
| |
| return strdup(buf); |
| } |
| #endif |
| |
| char * |
| loader_get_device_name_for_fd(int fd) |
| { |
| char *result = NULL; |
| |
| #if HAVE_LIBUDEV |
| if ((result = libudev_get_device_name_for_fd(fd))) |
| return result; |
| #endif |
| #if HAVE_SYSFS |
| if ((result = sysfs_get_device_name_for_fd(fd))) |
| return result; |
| #endif |
| #if HAVE_LIBDRM |
| if ((result = drm_get_device_name_for_fd(fd))) |
| return result; |
| #endif |
| return result; |
| } |
| |
| char * |
| loader_get_driver_for_fd(int fd, unsigned driver_types) |
| { |
| int vendor_id, chip_id, i, j; |
| char *driver = NULL; |
| |
| if (!driver_types) |
| driver_types = _LOADER_GALLIUM | _LOADER_DRI; |
| |
| if (!loader_get_pci_id_for_fd(fd, &vendor_id, &chip_id)) { |
| |
| #if HAVE_LIBDRM |
| /* fallback to drmGetVersion(): */ |
| drmVersionPtr version = drmGetVersion(fd); |
| |
| if (!version) { |
| log_(_LOADER_WARNING, "failed to get driver name for fd %d\n", fd); |
| return NULL; |
| } |
| |
| driver = strndup(version->name, version->name_len); |
| log_(_LOADER_INFO, "using driver %s for %d\n", driver, fd); |
| |
| drmFreeVersion(version); |
| #endif |
| |
| return driver; |
| } |
| |
| for (i = 0; driver_map[i].driver; i++) { |
| if (vendor_id != driver_map[i].vendor_id) |
| continue; |
| |
| if (!(driver_types & driver_map[i].driver_types)) |
| continue; |
| |
| if (driver_map[i].predicate && !driver_map[i].predicate(fd)) |
| continue; |
| |
| if (driver_map[i].num_chips_ids == -1) { |
| driver = strdup(driver_map[i].driver); |
| goto out; |
| } |
| |
| for (j = 0; j < driver_map[i].num_chips_ids; j++) |
| if (driver_map[i].chip_ids[j] == chip_id) { |
| driver = strdup(driver_map[i].driver); |
| goto out; |
| } |
| } |
| |
| out: |
| log_(driver ? _LOADER_DEBUG : _LOADER_WARNING, |
| "pci id for fd %d: %04x:%04x, driver %s\n", |
| fd, vendor_id, chip_id, driver); |
| return driver; |
| } |
| |
| void |
| loader_set_logger(void (*logger)(int level, const char *fmt, ...)) |
| { |
| log_ = logger; |
| } |