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-rw-r--r--src/gallium/targets/gbm/Makefile32
-rw-r--r--src/gallium/targets/gbm/gbm.c61
-rw-r--r--src/gallium/targets/gbm/pipe_loader.c192
-rw-r--r--src/gallium/targets/gbm/pipe_loader.h48
4 files changed, 333 insertions, 0 deletions
diff --git a/src/gallium/targets/gbm/Makefile b/src/gallium/targets/gbm/Makefile
new file mode 100644
index 00000000000..74a023293ab
--- /dev/null
+++ b/src/gallium/targets/gbm/Makefile
@@ -0,0 +1,32 @@
+# src/gallium/targets/gbm/Makefile
+
+TOP = ../../../..
+include $(TOP)/configs/current
+
+PIPE_PREFIX := pipe_
+
+GBM_BACKEND = gbm_gallium_drm
+GBM_SOURCES = gbm.c pipe_loader.c
+
+GBM_INCLUDES = \
+ -I$(TOP)/include \
+ -I$(TOP)/src/gallium/state_trackers/gbm \
+ -I$(TOP)/src/gbm/main \
+ -I$(TOP)/src/gallium/auxiliary \
+ -I$(TOP)/src/gallium/include \
+
+GBM_LIBS = $(LIBUDEV_LIBS) $(LIBDRM_LIB) \
+ $(TOP)/src/gallium/state_trackers/gbm/libgbm.a \
+ $(TOP)/src/gallium/drivers/identity/libidentity.a \
+ $(TOP)/src/gallium/drivers/trace/libtrace.a \
+ $(TOP)/src/gallium/drivers/rbug/librbug.a \
+ $(GALLIUM_AUXILIARIES)
+
+
+GBM_CFLAGS = \
+ -D_EGL_GALLIUM_DRIVER_SEARCH_DIR=\"$(EGL_DRIVER_INSTALL_DIR)\" \
+ -DPIPE_PREFIX=\"$(PIPE_PREFIX)\" \
+ $(LIBUDEV_CFLAGS) \
+ $(LIBDRM_CFLAGS)
+
+include $(TOP)/src/gbm/backends/Makefile.template
diff --git a/src/gallium/targets/gbm/gbm.c b/src/gallium/targets/gbm/gbm.c
new file mode 100644
index 00000000000..e840fc5fa1a
--- /dev/null
+++ b/src/gallium/targets/gbm/gbm.c
@@ -0,0 +1,61 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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:
+ * Benjamin Franzke <[email protected]>
+ */
+
+#include "util/u_inlines.h"
+
+#include "gbm_gallium_drmint.h"
+#include "pipe_loader.h"
+
+static struct pipe_screen *
+create_drm_screen(const char *name, int fd)
+{
+ struct pipe_module *pmod = get_pipe_module(name);
+
+ return (pmod && pmod->drmdd && pmod->drmdd->create_screen) ?
+ pmod->drmdd->create_screen(fd) : NULL;
+}
+
+int
+gallium_screen_create(struct gbm_gallium_drm_device *gdrm)
+{
+ gdrm->base.driver_name = drm_fd_get_screen_name(gdrm->base.base.fd);
+ if (gdrm->base.driver_name == NULL)
+ return -1;
+
+ gdrm->screen = create_drm_screen(gdrm->base.driver_name, gdrm->base.base.fd);
+ if (gdrm->screen == NULL) {
+ debug_printf("failed to load driver: %s\n", gdrm->base.driver_name);
+ return -1;
+ };
+
+ return 0;
+}
+
+GBM_EXPORT struct gbm_backend gbm_backend = {
+ .backend_name = "gallium_drm",
+ .create_device = gbm_gallium_drm_device_create,
+};
diff --git a/src/gallium/targets/gbm/pipe_loader.c b/src/gallium/targets/gbm/pipe_loader.c
new file mode 100644
index 00000000000..472614c7052
--- /dev/null
+++ b/src/gallium/targets/gbm/pipe_loader.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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:
+ * Kristian Høgsberg <[email protected]>
+ * Benjamin Franzke <[email protected]>
+ */
+
+#include <stdio.h>
+#include "util/u_string.h"
+#include "util/u_memory.h"
+
+#include <libudev.h>
+
+#include "gbm_gallium_drmint.h"
+#include "pipe_loader.h"
+#define DRIVER_MAP_GALLIUM_ONLY
+#include "pci_ids/pci_id_driver_map.h"
+
+static struct pipe_module pipe_modules[16];
+
+static INLINE char *
+loader_strdup(const char *str)
+{
+ return mem_dup(str, strlen(str) + 1);
+}
+
+char *
+drm_fd_get_screen_name(int fd)
+{
+ struct udev *udev;
+ struct udev_device *device, *parent;
+ const char *pci_id;
+ char *driver = NULL;
+ int vendor_id, chip_id, i, j;
+
+ udev = udev_new();
+ device = _gbm_udev_device_new_from_fd(udev, fd);
+ if (device == NULL)
+ return NULL;
+
+ parent = udev_device_get_parent(device);
+ if (parent == NULL) {
+ fprintf(stderr, "gbm: 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) {
+ fprintf(stderr, "gbm: malformed or no PCI ID");
+ goto out;
+ }
+
+ for (i = 0; driver_map[i].driver; i++) {
+ if (vendor_id != driver_map[i].vendor_id)
+ continue;
+ if (driver_map[i].num_chips_ids == -1) {
+ driver = loader_strdup(driver_map[i].driver);
+ _gbm_log("pci id for %d: %04x:%04x, driver %s",
+ fd, vendor_id, chip_id, driver);
+ goto out;
+ }
+
+ for (j = 0; j < driver_map[i].num_chips_ids; j++)
+ if (driver_map[i].chip_ids[j] == chip_id) {
+ driver = loader_strdup(driver_map[i].driver);
+ _gbm_log("pci id for %d: %04x:%04x, driver %s",
+ fd, vendor_id, chip_id, driver);
+ goto out;
+ }
+ }
+
+out:
+ udev_device_unref(device);
+ udev_unref(udev);
+
+ return driver;
+}
+
+static void
+find_pipe_module(struct pipe_module *pmod, const char *name)
+{
+ char *search_paths, *end, *next, *p;
+ char path[PATH_MAX];
+ int ret;
+
+ search_paths = NULL;
+ if (geteuid() == getuid()) {
+ /* don't allow setuid apps to use EGL_DRIVERS_PATH */
+ search_paths = getenv("EGL_DRIVERS_PATH");
+ }
+ if (search_paths == NULL)
+ search_paths = _EGL_GALLIUM_DRIVER_SEARCH_DIR;
+
+ end = search_paths + strlen(search_paths);
+ for (p = search_paths; p < end && pmod->lib == NULL; p = next + 1) {
+ int len;
+ next = strchr(p, ':');
+ if (next == NULL)
+ next = end;
+
+ len = next - p;
+
+ if (len) {
+ ret = util_snprintf(path, sizeof(path),
+ "%.*s/" PIPE_PREFIX "%s" UTIL_DL_EXT, len, p, pmod->name);
+ }
+ else {
+ ret = util_snprintf(path, sizeof(path),
+ PIPE_PREFIX "%s" UTIL_DL_EXT, pmod->name);
+ }
+ if (ret > 0 && ret < sizeof(path)) {
+ pmod->lib = util_dl_open(path);
+ debug_printf("loaded %s\n", path);
+ }
+
+ }
+}
+
+static boolean
+load_pipe_module(struct pipe_module *pmod, const char *name)
+{
+ pmod->name = loader_strdup(name);
+ if (!pmod->name)
+ return FALSE;
+
+ find_pipe_module(pmod, name);
+
+ if (pmod->lib) {
+ pmod->drmdd = (const struct drm_driver_descriptor *)
+ util_dl_get_proc_address(pmod->lib, "driver_descriptor");
+
+ /* sanity check on the name */
+ if (pmod->drmdd && strcmp(pmod->drmdd->name, pmod->name) != 0)
+ pmod->drmdd = NULL;
+
+ if (!pmod->drmdd) {
+ util_dl_close(pmod->lib);
+ pmod->lib = NULL;
+ }
+ }
+
+ return (pmod->drmdd != NULL);
+}
+
+struct pipe_module *
+get_pipe_module(const char *name)
+{
+ struct pipe_module *pmod = NULL;
+ int i;
+
+ if (!name)
+ return NULL;
+
+ for (i = 0; i < Elements(pipe_modules); i++) {
+ if (!pipe_modules[i].initialized ||
+ strcmp(pipe_modules[i].name, name) == 0) {
+ pmod = &pipe_modules[i];
+ break;
+ }
+ }
+ if (!pmod)
+ return NULL;
+
+ if (!pmod->initialized) {
+ load_pipe_module(pmod, name);
+ pmod->initialized = TRUE;
+ }
+
+ return pmod;
+}
diff --git a/src/gallium/targets/gbm/pipe_loader.h b/src/gallium/targets/gbm/pipe_loader.h
new file mode 100644
index 00000000000..2e4cd9906b7
--- /dev/null
+++ b/src/gallium/targets/gbm/pipe_loader.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * 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:
+ * Benjamin Franzke <[email protected]>
+ */
+
+#ifndef _PIPE_LOADER_H_
+#define _PIPE_LOADER_H_
+
+#include "pipe/p_compiler.h"
+#include "util/u_dl.h"
+#include "state_tracker/drm_driver.h"
+
+struct pipe_module {
+ boolean initialized;
+ char *name;
+ struct util_dl_library *lib;
+ const struct drm_driver_descriptor *drmdd;
+};
+
+struct pipe_module *
+get_pipe_module(const char *name);
+
+char *
+drm_fd_get_screen_name(int fd);
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 05:19:47 +0000