/*
* 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>
+ * Copyright (C) 2014-2016 Emil Velikov <emil.l.velikov@gmail.com>
+ * Copyright (C) 2016 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
-#ifdef HAVE_LIBUDEV
-#include <assert.h>
-#include <dlfcn.h>
-#endif
+#include <unistd.h>
+#include <stdlib.h>
#ifdef MAJOR_IN_MKDEV
#include <sys/mkdev.h>
#endif
#include "loader.h"
#ifdef HAVE_LIBDRM
-#include <stdlib.h>
-#include <unistd.h>
#include <xf86drm.h>
#ifdef USE_DRICONF
-#include "xmlconfig.h"
-#include "xmlpool.h"
+#include "util/xmlconfig.h"
+#include "util/xmlpool.h"
#endif
#endif
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;
-}
-#endif
-
#if defined(HAVE_LIBDRM)
#ifdef USE_DRICONF
static const char __driConfigOptionsLoader[] =
static char *drm_construct_id_path_tag(drmDevicePtr device)
{
-/* Length of "pci-xxxx_xx_xx_x\0" */
-#define PCI_ID_PATH_TAG_LENGTH 17
char *tag = NULL;
if (device->bustype == DRM_BUS_PCI) {
- tag = calloc(PCI_ID_PATH_TAG_LENGTH, sizeof(char));
- if (tag == NULL)
- return NULL;
-
- snprintf(tag, PCI_ID_PATH_TAG_LENGTH, "pci-%04x_%02x_%02x_%1u",
- device->businfo.pci->domain, device->businfo.pci->bus,
- device->businfo.pci->dev, device->businfo.pci->func);
+ if (asprintf(&tag, "pci-%04x_%02x_%02x_%1u",
+ device->businfo.pci->domain,
+ device->businfo.pci->bus,
+ device->businfo.pci->dev,
+ device->businfo.pci->func) < 0) {
+ return NULL;
+ }
}
return tag;
}
drmDevicePtr device;
char *tag;
- if (drmGetDevice(fd, &device) != 0)
+ if (drmGetDevice2(fd, 0, &device) != 0)
return NULL;
tag = drm_construct_id_path_tag(device);
return tag;
}
-int loader_get_user_preferred_fd(int default_fd, int *different_device)
+int loader_get_user_preferred_fd(int default_fd, bool *different_device)
{
/* Arbitrary "maximum" value of drm devices. */
#define MAX_DRM_DEVICES 32
#endif
if (prime == NULL) {
- *different_device = 0;
+ *different_device = false;
return default_fd;
}
if (default_tag == NULL)
goto err;
- num_devices = drmGetDevices(devices, MAX_DRM_DEVICES);
+ num_devices = drmGetDevices2(0, devices, MAX_DRM_DEVICES);
if (num_devices < 0)
goto err;
return fd;
err:
- *different_device = 0;
+ *different_device = false;
free(default_tag);
free(prime);
return default_fd;
}
#else
-int loader_get_user_preferred_fd(int default_fd, int *different_device)
+int loader_get_user_preferred_fd(int default_fd, bool *different_device)
{
- *different_device = 0;
+ *different_device = false;
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_LIBDRM)
static int
drmDevicePtr device;
int ret;
- if (drmGetDevice(fd, &device) == 0) {
+ if (drmGetDevice2(fd, 0, &device) == 0) {
if (device->bustype == DRM_BUS_PCI) {
*vendor_id = device->deviceinfo.pci->vendor_id;
*chip_id = device->deviceinfo.pci->device_id;
ret = 1;
}
else {
- log_(_LOADER_WARNING, "MESA-LOADER: device is not located on the PCI bus\n");
+ log_(_LOADER_DEBUG, "MESA-LOADER: device is not located on the PCI bus\n");
ret = 0;
}
drmFreeDevice(&device);
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] = "\nDEVNAME=";
- 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)) {
- buf[strcspn(buf, "\n")] = '\0';
- 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;
+ result = drmGetDeviceNameFromFd2(fd);
#endif
+
return result;
}
char *
-loader_get_driver_for_fd(int fd, unsigned driver_types)
+loader_get_driver_for_fd(int fd)
{
int vendor_id, chip_id, i, j;
char *driver = NULL;
- if (!driver_types)
- driver_types = _LOADER_GALLIUM | _LOADER_DRI;
+ /* Allow an environment variable to force choosing a different driver
+ * binary. If that driver binary can't survive on this FD, that's the
+ * user's problem, but this allows vc4 simulator to run on an i965 host,
+ * and may be useful for some touch testing of i915 on an i965 host.
+ */
+ if (geteuid() == getuid()) {
+ driver = getenv("MESA_LOADER_DRIVER_OVERRIDE");
+ if (driver)
+ return strdup(driver);
+ }
if (!loader_get_pci_id_for_fd(fd, &vendor_id, &chip_id)) {
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;
{
log_ = logger;
}
+
+/* XXX: Local definition to avoid pulling the heavyweight GL/gl.h and
+ * GL/internal/dri_interface.h
+ */
+
+#ifndef __DRI_DRIVER_GET_EXTENSIONS
+#define __DRI_DRIVER_GET_EXTENSIONS "__driDriverGetExtensions"
+#endif
+
+char *
+loader_get_extensions_name(const char *driver_name)
+{
+ char *name = NULL;
+
+ if (asprintf(&name, "%s_%s", __DRI_DRIVER_GET_EXTENSIONS, driver_name) < 0)
+ return NULL;
+
+ const size_t len = strlen(name);
+ for (size_t i = 0; i < len; i++) {
+ if (name[i] == '-')
+ name[i] = '_';
+ }
+
+ return name;
+}
projects / mesa.git / blobdiff