>From c02dd827c928fc68526bc41116ea2e06ce3e838b Mon Sep 17 00:00:00 2001 From: Robert Millan <rmh@xxxxxxxxxxx> 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@xxxxxxxxxxx> Signed-off-by: Robert Millan <rmh@xxxxxxxxxxx> --- 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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