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-rw-r--r--mesalib/src/loader/loader.c316
1 files changed, 316 insertions, 0 deletions
diff --git a/mesalib/src/loader/loader.c b/mesalib/src/loader/loader.c
new file mode 100644
index 000000000..108e44402
--- /dev/null
+++ b/mesalib/src/loader/loader.c
@@ -0,0 +1,316 @@
+/*
+ * 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 <stdarg.h>
+#include <stdio.h>
+#include <string.h>
+#include "loader.h"
+
+#include <xf86drm.h>
+
+#define __IS_LOADER
+#include "pci_ids/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);
+ fprintf(stderr, "\n");
+ }
+}
+
+static void (*log)(int level, const char *fmt, ...) = default_logger;
+
+#ifdef HAVE_LIBUDEV
+#include <libudev.h>
+
+static inline struct udev_device *
+udev_device_new_from_fd(struct udev *udev, int fd)
+{
+ struct udev_device *device;
+ struct stat buf;
+
+ if (fstat(fd, &buf) < 0) {
+ log(_LOADER_WARNING, "MESA-LOADER: failed to stat fd %d", 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", fd);
+ return NULL;
+ }
+
+ return device;
+}
+
+int
+loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
+{
+ struct udev *udev = NULL;
+ struct udev_device *device = NULL, *parent;
+ struct stat buf;
+ const char *pci_id;
+
+ *chip_id = -1;
+
+ 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");
+ goto out;
+ }
+
+ 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;
+ }
+
+out:
+ if (device)
+ udev_device_unref(device);
+ if (udev)
+ udev_unref(udev);
+
+ return (*chip_id >= 0);
+}
+
+#elif defined(ANDROID) && !defined(_EGL_NO_DRM)
+
+/* for i915 */
+#include <i915_drm.h>
+/* for radeon */
+#include <radeon_drm.h>
+
+int
+loader_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");
+ return FALSE;
+ }
+ if (!version->name) {
+ log(_LOADER_WARNING, "MESA-LOADER: unable to determine the driver name");
+ drmFreeVersion(version);
+ return FALSE;
+ }
+
+ 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");
+ *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");
+ *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);
+}
+
+#else
+
+int
+loader_get_pci_id_for_fd(int fd, int *vendor_id, int *chip_id)
+{
+ return 0;
+}
+
+#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);
+
+out:
+ udev_device_unref(device);
+ udev_unref(udev);
+#endif
+ return device_name;
+}
+
+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)) {
+ /* fallback to drmGetVersion(): */
+ drmVersionPtr version = drmGetVersion(fd);
+
+ if (!version) {
+ log(_LOADER_WARNING, "failed to get driver name for fd %d", fd);
+ return NULL;
+ }
+
+ driver = strndup(version->name, version->name_len);
+ log(_LOADER_INFO, "using driver %s for %d", driver, fd);
+
+ drmFreeVersion(version);
+
+ 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].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_INFO : _LOADER_WARNING,
+ "pci id for fd %d: %04x:%04x, driver %s",
+ fd, vendor_id, chip_id, driver);
+ return driver;
+}
+
+void
+loader_set_logger(void (*logger)(int level, const char *fmt, ...))
+{
+ log = logger;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 18:26:39 +0000