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dri2: refine dri2_probe_driver_name (v2) 

V2:
1. update comment
2. check bustype if PCI
3. configure add libdrm version check for drmGetDevice

Get PCI information from info->fd with drmGetDevice instead of
assuming the info->fd is the first entity of scrn which is not
true for multi entities scrn.

Signed-off-by: Qiang Yu <Qiang.Yu@amd.com>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
This commit is contained in:
Qiang Yu 2017-01-11 13:59:22 +08:00 committed by Adam Jackson
parent b1a6986395
commit 7617a0a180
2 changed files with 30 additions and 20 deletions
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7
configure.ac
View File

@ -1338,7 +1338,12 @@ AM_CONDITIONAL(DRI3, test "x$DRI3" = xyes)
if test "x$DRI" = xyes || test "x$DRI2" = xyes || test "x$DRI3" = xyes || test "x$CONFIG_UDEV_KMS" = xyes; then
if test "x$DRM" = xyes; then
AC_DEFINE(WITH_LIBDRM, 1, [Building with libdrm support])
PKG_CHECK_MODULES([LIBDRM], $LIBDRM)
if test "x$DRI2" = xyes; then
dnl 2.4.65 is required for drmGetDevice
PKG_CHECK_MODULES([LIBDRM], libdrm >= 2.4.65)
else
PKG_CHECK_MODULES([LIBDRM], $LIBDRM)
fi
fi
fi

43
hw/xfree86/dri2/dri2.c
View File

@ -1440,21 +1440,17 @@ get_prime_id(void)
static char *
dri2_probe_driver_name(ScreenPtr pScreen, DRI2InfoPtr info)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
EntityInfoPtr pEnt = xf86GetEntityInfo(pScrn->entityList[0]);
struct pci_device *pdev = NULL;
#ifdef WITH_LIBDRM
int i, j;
char *driver = NULL;
drmDevicePtr dev;
if (pEnt)
pdev = xf86GetPciInfoForEntity(pEnt->index);
/* For non-PCI devices, just assume that the 3D driver is named
* the same as the kernel driver. This is currently true for vc4
* and msm (freedreno).
/* For non-PCI devices and drmGetDevice fail, just assume that
* the 3D driver is named the same as the kernel driver. This is
* currently true for vc4 and msm (freedreno).
*/
if (!pdev) {
if (drmGetDevice(info->fd, &dev) || dev->bustype != DRM_BUS_PCI) {
drmVersionPtr version = drmGetVersion(info->fd);
char *kernel_driver;
if (!version) {
xf86DrvMsg(pScreen->myNum, X_ERROR,
@ -1463,29 +1459,38 @@ dri2_probe_driver_name(ScreenPtr pScreen, DRI2InfoPtr info)
return NULL;
}
kernel_driver = strndup(version->name, version->name_len);
driver = strndup(version->name, version->name_len);
drmFreeVersion(version);
return kernel_driver;
return driver;
}
for (i = 0; driver_map[i].driver; i++) {
if (pdev->vendor_id != driver_map[i].vendor_id)
if (dev->deviceinfo.pci->vendor_id != driver_map[i].vendor_id)
continue;
if (driver_map[i].num_chips_ids == -1)
return strdup(driver_map[i].driver);
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] == pdev->device_id)
return strdup(driver_map[i].driver);
if (driver_map[i].chip_ids[j] == dev->deviceinfo.pci->device_id) {
driver = strdup(driver_map[i].driver);
goto out;
}
}
}
xf86DrvMsg(pScreen->myNum, X_ERROR,
"[DRI2] No driver mapping found for PCI device "
"0x%04x / 0x%04x\n",
pdev->vendor_id, pdev->device_id);
dev->deviceinfo.pci->vendor_id, dev->deviceinfo.pci->device_id);
out:
drmFreeDevice(&dev);
return driver;
#else
return NULL;
#endif
}
Bool