AC_SUBST(FUSE_CFLAGS)
AC_SUBST(FUSE_LIBS)
+PKG_CHECK_MODULES([PCIACCESS], [pciaccess],
+ [have_pciaccess=yes], [have_pciaccess=no])
+AC_SUBST(PCIACCESS_CFLAGS)
+AC_SUBST(PCIACCESS_LIBS)
+
#
# Parse arguments
# This parses all arguments that are given via "--enable-XY" or "--with-XY" and
fi
AC_MSG_RESULT([$enable_hotplug])
+# pciaccess
+AC_MSG_CHECKING([whether user wants pciaccess device detection])
+AC_ARG_ENABLE([pciaccess],
+ [AS_HELP_STRING([--enable-pciaccess],
+ [enable device detection via pciaccess])])
+if test "x$enable_pciaccess" = "x" ; then
+ enable_pciaccess="yes (default)"
+fi
+AC_MSG_RESULT([$enable_pciaccess])
+
# eloop-dbus
AC_MSG_CHECKING([whether user wants eloop dbus support])
AC_ARG_ENABLE([eloop-dbus],
fi
fi
+# pciaccess
+pciaccess_avail=no
+if test ! "x$enable_pciaccess" = "xno" ; then
+ if test "x$have_pciaccess" = "xyes" ; then
+ pciaccess_avail=yes
+ elif test "x$enable_pciaccess" = "xyes" ; then
+ AC_ERROR([pciaccess libraries not found for pciaccess device detection])
+ fi
+fi
+
# renderer bblit
renderer_bblit_avail=no
if test ! "x$enable_renderer_bblit" = "xno" ; then
fi
fi
+# pciaccess
+pciaccess_enabled=no
+if test "x$pciaccess_avail" = "xyes" ; then
+ if test "x${enable_pciaccess% *}" = "xyes" ; then
+ pciaccess_enabled=yes
+ fi
+fi
+
# hotplug
hotplug_enabled=no
if test "x$hotplug_avail" = "xyes" ; then
AM_CONDITIONAL([BUILD_ENABLE_HOTPLUG],
[test "x$hotplug_enabled" = "xyes"])
+# pciaccess
+if test "x$pciaccess_enabled" = "xyes" ; then
+ AC_DEFINE([BUILD_ENABLE_PCIACCESS], [1],
+ [Use pciaccess for device detection])
+fi
+
+AM_CONDITIONAL([BUILD_ENABLE_PCIACCESS],
+ [test "x$pciaccess_enabled" = "xyes"])
+
# renderer bblit
if test "x$renderer_bblit_enabled" = "xyes" ; then
AC_DEFINE([BUILD_ENABLE_RENDERER_BBLIT], [1],
optimizations: $optimizations_enabled ($optimizations_avail)
multi-seat: $multi_seat_enabled ($multi_seat_avail)
hotplug: $hotplug_enabled ($hotplug_avail)
+ pciaccess: $pciaccess_enabled ($pciaccess_avail)
eloop-dbus: $eloop_dbus_enabled ($eloop_dbus_avail)
Video Backends:
--- /dev/null
+/*
+ * uterm - Linux User-Space Terminal
+ *
+ * Copyright (c) 2012 David Herrmann <dh.herrmann@googlemail.com>
+ *
+ * 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 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.
+ */
+
+/*
+ * PCI Helpers
+ * This uses the pciaccess library to retrieve information from the PCI bus.
+ */
+
+#include <errno.h>
+#include <inttypes.h>
+#include <pciaccess.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "log.h"
+#include "uterm.h"
+#include "uterm_pci.h"
+
+#define LOG_SUBSYSTEM "pci"
+
+/* pci classes */
+#define UTERM_PCI_CLASS_PREHISTORIC 0x00
+#define UTERM_PCI_CLASS_DISPLAY 0x03
+#define UTERM_PCI_CLASS_MULTIMEDIA 0x04
+#define UTERM_PCI_CLASS_PROCESSOR 0x0b
+
+/* pci sub-classes */
+#define UTERM_PCI_SUBCLASS_DISPLAY_VGA 0x00
+#define UTERM_PCI_SUBCLASS_MULTIMEDIA_VIDEO 0x00
+#define UTERM_PCI_SUBCLASS_PROCESSOR_COPROC 0x40
+
+/* pci registers */
+#define UTERM_PCI_CMD_MEM_ENABLE 0x02
+
+static bool uterm_pci_is_gpu(struct pci_device *dev)
+{
+ uint32_t class = dev->device_class;
+ uint32_t match;
+
+ match = UTERM_PCI_CLASS_PREHISTORIC << 16;
+ if ((class & 0x00ff0000) == match)
+ return true;
+
+ match = UTERM_PCI_CLASS_DISPLAY << 16;
+ if ((class & 0x00ff0000) == match)
+ return true;
+
+ match = UTERM_PCI_CLASS_MULTIMEDIA << 16;
+ match |= UTERM_PCI_SUBCLASS_MULTIMEDIA_VIDEO << 8;
+ if ((class & 0x00ffff00) == match)
+ return true;
+
+ match = UTERM_PCI_CLASS_PROCESSOR << 16;
+ match |= UTERM_PCI_SUBCLASS_PROCESSOR_COPROC << 8;
+ if ((class & 0x00ffff00) == match)
+ return true;
+
+ return false;
+}
+
+static bool uterm_pci_is_vga(struct pci_device *dev)
+{
+ uint32_t class = dev->device_class;
+ uint32_t match;
+
+ match = UTERM_PCI_CLASS_DISPLAY << 16;
+ match |= UTERM_PCI_SUBCLASS_DISPLAY_VGA << 8;
+ return (class & 0x00ffff00) == match;
+}
+
+static const struct pci_slot_match uterm_pci_match = {
+ .domain = PCI_MATCH_ANY,
+ .bus = PCI_MATCH_ANY,
+ .dev = PCI_MATCH_ANY,
+ .func = PCI_MATCH_ANY,
+ .match_data = 0,
+};
+
+#define UTERM_PCI_FORMAT "pci:%04x:%02x:%02x.%d"
+
+int uterm_pci_get_primary_id(char **out)
+{
+ int ret;
+ struct pci_device_iterator *iter;
+ struct pci_device *dev;
+ char *buf;
+ uint16_t cmd;
+ unsigned int num;
+
+ if (!out)
+ return -EINVAL;
+
+ ret = pci_system_init();
+ if (ret) {
+ log_error("cannot initialize pciaccess library (%d/%d): %m",
+ ret, errno);
+ return -EFAULT;
+ }
+
+ iter = pci_slot_match_iterator_create(&uterm_pci_match);
+ if (!iter) {
+ log_error("cannot create pci-slot iterator (%d): %m",
+ errno);
+ ret = -EFAULT;
+ goto out_cleanup;
+ }
+
+ buf = NULL;
+ num = 0;
+ while ((dev = pci_device_next(iter))) {
+ if (!uterm_pci_is_gpu(dev))
+ continue;
+
+ ++num;
+ if (!pci_device_is_boot_vga(dev))
+ continue;
+
+ log_debug("primary PCI GPU: " UTERM_PCI_FORMAT,
+ dev->domain, dev->bus, dev->dev, dev->func);
+
+ if (buf) {
+ log_warning("multiple primary PCI GPUs found");
+ continue;
+ }
+
+ ret = asprintf(&buf, UTERM_PCI_FORMAT, dev->domain, dev->bus,
+ dev->dev, dev->func);
+ if (ret < 0) {
+ log_error("cannot allocate memory for PCI name");
+ goto out_iter;
+ }
+ }
+
+ free(iter);
+ if (buf) {
+ ret = 0;
+ *out = buf;
+ goto out_cleanup;
+ }
+
+ /* If no GPU is marked as boot_vga, we try finding a VGA card */
+ iter = pci_slot_match_iterator_create(&uterm_pci_match);
+ if (!iter) {
+ log_error("cannot create pci-slot iterator (%d): %m",
+ errno);
+ ret = -EFAULT;
+ goto out_cleanup;
+ }
+
+ while ((dev = pci_device_next(iter))) {
+ if (!uterm_pci_is_gpu(dev))
+ continue;
+
+ ret = pci_device_cfg_read_u16(dev, &cmd, 4);
+ if (ret)
+ continue;
+ if (!(cmd & UTERM_PCI_CMD_MEM_ENABLE))
+ continue;
+ if (num != 1 && !uterm_pci_is_vga(dev))
+ continue;
+
+ log_debug("primary PCI VGA GPU: " UTERM_PCI_FORMAT,
+ dev->domain, dev->bus, dev->dev, dev->func);
+
+ if (buf) {
+ log_warning("multiple primary PCI VGA GPUs found");
+ continue;
+ }
+
+ ret = asprintf(&buf, UTERM_PCI_FORMAT, dev->domain, dev->bus,
+ dev->dev, dev->func);
+ if (ret < 0) {
+ log_error("cannot allocate memory for PCI name");
+ goto out_iter;
+ }
+ }
+
+ if (buf) {
+ ret = 0;
+ *out = buf;
+ } else {
+ log_warning("no primary PCI GPU found");
+ ret = -ENOENT;
+ }
+
+out_iter:
+ free(iter);
+out_cleanup:
+ pci_system_cleanup();
+ return ret;
+}
--- /dev/null
+/*
+ * uterm - Linux User-Space Terminal
+ *
+ * Copyright (c) 2012 David Herrmann <dh.herrmann@googlemail.com>
+ *
+ * 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 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.
+ */
+
+/*
+ * PCI Helpers
+ * This uses the pciaccess library to retrieve information from the PCI bus.
+ */
+
+#ifndef UTERM_PCI_H
+#define UTERM_PCI_H
+
+#include <stdlib.h>
+#include "uterm.h"
+
+#ifdef BUILD_ENABLE_PCIACCESS
+
+int uterm_pci_get_primary_id(char **out);
+
+#else
+
+static inline int uterm_pci_get_primary_id(char **out)
+{
+ return -EOPNOTSUPP;
+}
+
+#endif
+
+#endif /* UTERM_PCI_H */
projects / platform / upstream / kmscon.git / commitdiff