#include <stdio.h>
#include <stdbool.h>
#include <string.h>
+#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
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_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;
}
-
-#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_LIBDRM
- if ((result = drm_get_device_name_for_fd(fd)))
- return result;
+ result = drmGetDeviceNameFromFd2(fd);
#endif
+
return result;
}
int vendor_id, chip_id, i, j;
char *driver = NULL;
+ /* 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 HAVE_LIBDRM
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;
}