/*
* 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"),
* Rob Clark <robclark@freedesktop.org>
*/
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
#include <stdarg.h>
#include <stdio.h>
+#include <stdbool.h>
#include <string.h>
+#include <unistd.h>
+#include <stdlib.h>
+#ifdef MAJOR_IN_MKDEV
+#include <sys/mkdev.h>
+#endif
+#ifdef MAJOR_IN_SYSMACROS
+#include <sys/sysmacros.h>
+#endif
#include "loader.h"
-#ifndef __NOT_HAVE_DRM_H
+#ifdef HAVE_LIBDRM
#include <xf86drm.h>
+#ifdef USE_DRICONF
+#include "xmlconfig.h"
+#include "xmlpool.h"
+#endif
#endif
#define __IS_LOADER
-#include "pci_ids/pci_id_driver_map.h"
+#include "pci_id_driver_map.h"
static void default_logger(int level, const char *fmt, ...)
{
- if (level >= _LOADER_WARNING) {
+ if (level <= _LOADER_WARNING) {
va_list args;
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
- fprintf(stderr, "\n");
}
}
-static void (*log)(int level, const char *fmt, ...) = default_logger;
+static void (*log_)(int level, const char *fmt, ...) = default_logger;
-#ifdef HAVE_LIBUDEV
-#include <libudev.h>
+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;
+}
+
+#if defined(HAVE_LIBDRM)
+#ifdef USE_DRICONF
+static const char __driConfigOptionsLoader[] =
+DRI_CONF_BEGIN
+ DRI_CONF_SECTION_INITIALIZATION
+ DRI_CONF_DEVICE_ID_PATH_TAG()
+ DRI_CONF_SECTION_END
+DRI_CONF_END;
-static inline struct udev_device *
-udev_device_new_from_fd(struct udev *udev, int fd)
+static char *loader_get_dri_config_device_id(void)
{
- struct udev_device *device;
- struct stat buf;
+ driOptionCache defaultInitOptions;
+ driOptionCache userInitOptions;
+ char *prime = NULL;
+
+ 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);
+
+ return prime;
+}
+#endif
- if (fstat(fd, &buf) < 0) {
- log(_LOADER_WARNING, "MESA-LOADER: failed to stat fd %d", fd);
- return NULL;
+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);
}
+ return tag;
+}
- 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", fd);
- return NULL;
- }
+static bool drm_device_matches_tag(drmDevicePtr device, const char *prime_tag)
+{
+ char *tag = drm_construct_id_path_tag(device);
+ int ret;
+
+ if (tag == NULL)
+ return false;
- return device;
+ ret = strcmp(tag, prime_tag);
+
+ free(tag);
+ return ret == 0;
}
-int
-loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
+static char *drm_get_id_path_tag_for_fd(int fd)
{
- struct udev *udev = NULL;
- struct udev_device *device = NULL, *parent;
- struct stat buf;
- const char *pci_id;
+ drmDevicePtr device;
+ char *tag;
+
+ if (drmGetDevice(fd, &device) != 0)
+ return NULL;
- *chip_id = -1;
+ tag = drm_construct_id_path_tag(device);
+ drmFreeDevice(&device);
+ return tag;
+}
- udev = udev_new();
- device = udev_device_new_from_fd(udev, fd);
- if (!device)
- goto out;
+int loader_get_user_preferred_fd(int default_fd, int *different_device)
+{
+/* Arbitrary "maximum" value of drm devices. */
+#define MAX_DRM_DEVICES 32
+ const char *dri_prime = getenv("DRI_PRIME");
+ char *default_tag, *prime = NULL;
+ drmDevicePtr devices[MAX_DRM_DEVICES];
+ int i, num_devices, fd;
+ bool found = false;
+
+ if (dri_prime)
+ prime = strdup(dri_prime);
+#ifdef USE_DRICONF
+ else
+ prime = loader_get_dri_config_device_id();
+#endif
- parent = udev_device_get_parent(device);
- if (parent == NULL) {
- log(_LOADER_WARNING, "MESA-LOADER: could not get parent device");
- goto out;
+ if (prime == NULL) {
+ *different_device = 0;
+ return default_fd;
}
- pci_id = udev_device_get_property_value(parent, "PCI_ID");
- if (pci_id == NULL ||
- sscanf(pci_id, "%x:%x", vendor_id, chip_id) != 2) {
- log(_LOADER_WARNING, "MESA-LOADER: malformed or no PCI ID");
- *chip_id = -1;
- goto out;
+ default_tag = drm_get_id_path_tag_for_fd(default_fd);
+ if (default_tag == NULL)
+ goto err;
+
+ num_devices = drmGetDevices(devices, MAX_DRM_DEVICES);
+ if (num_devices < 0)
+ goto err;
+
+ /* 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")) {
+ /* Hmm... detection for 2-7 seems to be broken. Oh well ...
+ * Pick the first render device that is not our own.
+ */
+ for (i = 0; i < num_devices; i++) {
+ if (devices[i]->available_nodes & 1 << DRM_NODE_RENDER &&
+ !drm_device_matches_tag(devices[i], default_tag)) {
+
+ found = true;
+ break;
+ }
+ }
+ } else {
+ for (i = 0; i < num_devices; i++) {
+ if (devices[i]->available_nodes & 1 << DRM_NODE_RENDER &&
+ drm_device_matches_tag(devices[i], prime)) {
+
+ found = true;
+ break;
+ }
+ }
}
-out:
- if (device)
- udev_device_unref(device);
- if (udev)
- udev_unref(udev);
+ if (!found) {
+ drmFreeDevices(devices, num_devices);
+ goto err;
+ }
- return (*chip_id >= 0);
-}
+ fd = loader_open_device(devices[i]->nodes[DRM_NODE_RENDER]);
+ drmFreeDevices(devices, num_devices);
+ if (fd < 0)
+ goto err;
-#elif defined(ANDROID) && !defined(__NOT_HAVE_DRM_H)
+ close(default_fd);
-/* for i915 */
-#include <i915_drm.h>
-/* for radeon */
-#include <radeon_drm.h>
+ *different_device = !!strcmp(default_tag, prime);
-int
-loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
+ free(default_tag);
+ free(prime);
+ return fd;
+
+ err:
+ *different_device = 0;
+
+ free(default_tag);
+ free(prime);
+ return default_fd;
+}
+#else
+int loader_get_user_preferred_fd(int default_fd, int *different_device)
{
- drmVersionPtr version;
+ *different_device = 0;
+ return default_fd;
+}
+#endif
- *chip_id = -1;
+#if defined(HAVE_LIBDRM)
+static int
+dev_node_from_fd(int fd, unsigned int *maj, unsigned int *min)
+{
+ struct stat buf;
- version = drmGetVersion(fd);
- if (!version) {
- log(_LOADER_WARNING, "MESA-LOADER: invalid drm fd");
- return FALSE;
+ if (fstat(fd, &buf) < 0) {
+ log_(_LOADER_WARNING, "MESA-LOADER: failed to stat fd %d\n", fd);
+ return -1;
}
- if (!version->name) {
- log(_LOADER_WARNING, "MESA-LOADER: unable to determine the driver name");
- drmFreeVersion(version);
- return FALSE;
+
+ if (!S_ISCHR(buf.st_mode)) {
+ log_(_LOADER_WARNING, "MESA-LOADER: fd %d not a character device\n", fd);
+ return -1;
}
- if (strcmp(version->name, "i915") == 0) {
- struct drm_i915_getparam gp;
- int ret;
+ *maj = major(buf.st_rdev);
+ *min = minor(buf.st_rdev);
- *vendor_id = 0x8086;
+ return 0;
+}
+#endif
- 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");
- *chip_id = -1;
+#if defined(HAVE_LIBDRM)
+
+static int
+drm_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
+{
+ drmDevicePtr device;
+ int ret;
+
+ if (drmGetDevice(fd, &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 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");
- *chip_id = -1;
+ else {
+ log_(_LOADER_DEBUG, "MESA-LOADER: device is not located on the PCI bus\n");
+ ret = 0;
}
+ drmFreeDevice(&device);
}
- else if (strcmp(version->name, "nouveau") == 0) {
- *vendor_id = 0x10de;
- /* not used */
- *chip_id = 0;
+ else {
+ log_(_LOADER_WARNING, "MESA-LOADER: failed to retrieve device information\n");
+ ret = 0;
}
- else if (strcmp(version->name, "vmwgfx") == 0) {
- *vendor_id = 0x15ad;
- /* assume SVGA II */
- *chip_id = 0x0405;
- }
-
- drmFreeVersion(version);
- return (*chip_id >= 0);
+ return ret;
}
+#endif
-#else
int
loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
{
+#if HAVE_LIBDRM
+ if (drm_get_pci_id_for_fd(fd, vendor_id, chip_id))
+ return 1;
+#endif
return 0;
}
-#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 *device_name = NULL;
-#ifdef HAVE_LIBUDEV
- struct udev *udev;
- struct udev_device *device;
- const char *const_device_name;
-
- 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);
+ char *result = NULL;
-out:
- udev_device_unref(device);
- udev_unref(udev);
+#if HAVE_LIBDRM
+ if ((result = drm_get_device_name_for_fd(fd)))
+ return result;
#endif
- return device_name;
+ 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)) {
-#ifndef __NOT_HAVE_DRM_H
+#if HAVE_LIBDRM
/* fallback to drmGetVersion(): */
drmVersionPtr version = drmGetVersion(fd);
if (!version) {
- log(_LOADER_WARNING, "failed to get driver name for fd %d", fd);
+ 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", driver, fd);
+ log_(_LOADER_INFO, "using driver %s for %d\n", driver, fd);
drmFreeVersion(version);
#endif
if (vendor_id != driver_map[i].vendor_id)
continue;
- if (!(driver_types & driver_map[i].driver_types))
+ if (driver_map[i].predicate && !driver_map[i].predicate(fd))
continue;
if (driver_map[i].num_chips_ids == -1) {
}
out:
- log(driver ? _LOADER_INFO : _LOADER_WARNING,
- "pci id for fd %d: %04x:%04x, driver %s",
+ 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;
+ 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