* [PATCH] drm: Implement drmCheckModesettingSupported() for FreeBSD
@ 2014-01-23 14:50 Robert Millan
2014-01-24 14:43 ` Robert Millan
0 siblings, 1 reply; 3+ messages in thread
From: Robert Millan @ 2014-01-23 14:50 UTC (permalink / raw)
To: dri-devel; +Cc: Konstantin Belousov
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>From c02dd827c928fc68526bc41116ea2e06ce3e838b Mon Sep 17 00:00:00 2001
From: Robert Millan <rmh@freebsd.org>
Date: Thu, 23 Jan 2014 14:46:05 +0000
Subject: [PATCH] drm: Implement drmCheckModesettingSupported() for FreeBSD
Add the missing implementation of drmCheckModesettingSupported()
to detect KMS support on FreeBSD (and GNU/kFreeBSD).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=72847
Signed-off-by: Konstantin Belousov <kib@freebsd.org>
Signed-off-by: Robert Millan <rmh@freebsd.org>
---
configure.ac | 2 ++
xf86drmMode.c | 35 ++++++++++++++++++++++++++++++++++-
2 files changed, 36 insertions(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 969fb83..d2d19d6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -185,6 +185,8 @@ AC_CANONICAL_HOST
if test "x$LIBKMS" = xauto ; then
case $host_os in
linux*) LIBKMS="yes" ;;
+ freebsd* | kfreebsd*-gnu)
+ LIBKMS="yes" ;;
*) LIBKMS="no" ;;
esac
fi
diff --git a/xf86drmMode.c b/xf86drmMode.c
index dd7966e..a6bb2ee 100644
--- a/xf86drmMode.c
+++ b/xf86drmMode.c
@@ -723,7 +723,7 @@ int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property
*/
int drmCheckModesettingSupported(const char *busid)
{
-#ifdef __linux__
+#if defined (__linux__)
char pci_dev_dir[1024];
int domain, bus, dev, func;
DIR *sysdir;
@@ -773,6 +773,39 @@ int drmCheckModesettingSupported(const char *busid)
closedir(sysdir);
if (found)
return 0;
+#elif defined (__FreeBSD__) || defined (__FreeBSD_kernel__)
+ char kbusid[1024], sbusid[1024];
+ char oid[128];
+ int domain, bus, dev, func;
+ int i, modesetting, ret;
+ size_t len;
+
+ ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev,
+ &func);
+ if (ret != 4)
+ return -EINVAL;
+ snprintf(kbusid, sizeof(kbusid), "pci:%04x:%02x:%02x.%d", domain, bus,
+ dev, func);
+
+ /* How many GPUs do we expect in the machine ? */
+ for (i = 0; i < 16; i++) {
+ snprintf(oid, sizeof(oid), "hw.dri.%d.busid", i);
+ len = sizeof(sbusid);
+ ret = sysctlbyname(oid, sbusid, &len, NULL, 0);
+ if (ret == -1) {
+ if (errno == ENOENT)
+ continue;
+ return -EINVAL;
+ }
+ if (strcmp(sbusid, kbusid) != 0)
+ continue;
+ snprintf(oid, sizeof(oid), "hw.dri.%d.modesetting", i);
+ len = sizeof(modesetting);
+ ret = sysctlbyname(oid, &modesetting, &len, NULL, 0);
+ if (ret == -1 || len != sizeof(modesetting))
+ return -EINVAL;
+ return (modesetting ? 0 : -ENOSYS);
+ }
#endif
return -ENOSYS;
--
1.7.10.4
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2014-01-23 14:50 [PATCH] drm: Implement drmCheckModesettingSupported() for FreeBSD Robert Millan
2014-01-24 14:43 ` Robert Millan
2014-01-24 22:54 ` Alex Deucher
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