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078277e4d9
xserver-multidpi/hw/xfree86/common/xf86Init.c
Dave Airlie 078277e4d9 xf86: autobind GPUs to the screen 
This is a modified version of a patch we've been carry-ing in Fedora and
RHEL for years now. This patch automatically adds secondary GPUs to the
master as output sink / offload source making e.g. the use of
slave-outputs just work, with requiring the user to manually run
"xrandr --setprovideroutputsource" before he can hookup an external
monitor to his hybrid graphics laptop.

There is one problem with this patch, which is why it was not upstreamed
before. What to do when a secondary GPU gets detected really is a policy
decission (e.g. one may want to autobind PCI GPUs but not USB ones) and
as such should be under control of the Desktop Environment.

Unconditionally adding autobinding support to the xserver will result
in races between the DE dealing with the hotplug of a secondary GPU
and the server itself dealing with it.

However we've waited for years for any Desktop Environments to actually
start doing some sort of autoconfiguration of secondary GPUs and there
is still not a single DE dealing with this, so I believe that it is
time to upstream this now.

To avoid potential future problems if any DEs get support for doing
secondary GPU configuration themselves, the new autobind functionality
is made optional. Since no DEs currently support doing this themselves it
is enabled by default. When DEs grow support for doing this themselves
they can disable the servers autobinding through the servers cmdline or a
xorg.conf snippet.

Signed-off-by: Dave Airlie <airlied@gmail.com>
[hdegoede@redhat.com: Make configurable, fix with nvidia, submit upstream]
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>
---
Changes in v2:
-Make the default enabled instead of installing a xorg.conf
 snippet which enables it unconditionally

Changes in v3:
-Handle GPUScreen autoconfig in randr/rrprovider.c, looking at
 rrScrPriv->provider, rather then in hw/xfree86/modes/xf86Crtc.c
 looking at xf86CrtcConfig->provider. This fixes the autoconfig not
 working with the nvidia binary driver
2019-08-07 12:26:59 +02:00

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/*
* Loosely based on code bearing the following copyright:
*
* Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany.
*/
/*
* Copyright (c) 1992-2003 by The XFree86 Project, Inc.
*
* 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*
* Except as contained in this notice, the name of the copyright holder(s)
* and author(s) shall not be used in advertising or otherwise to promote
* the sale, use or other dealings in this Software without prior written
* authorization from the copyright holder(s) and author(s).
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <stdlib.h>
#include <errno.h>
#undef HAS_UTSNAME
#if !defined(WIN32)
#define HAS_UTSNAME 1
#include <sys/utsname.h>
#endif
#include <X11/X.h>
#include <X11/Xmd.h>
#include <X11/Xproto.h>
#include <X11/Xatom.h>
#include "input.h"
#include "servermd.h"
#include "windowstr.h"
#include "scrnintstr.h"
#include "site.h"
#include "mi.h"
#include "dbus-core.h"
#include "systemd-logind.h"
#include "loaderProcs.h"
#define XF86_OS_PRIVS
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86Config.h"
#include "xf86_OSlib.h"
#include "xf86cmap.h"
#include "xorgVersion.h"
#include "buildDateTime.h"
#include "mipointer.h"
#include <X11/extensions/XI.h>
#include <X11/extensions/XIproto.h>
#include "xf86Extensions.h"
#include "xf86DDC.h"
#include "xf86Xinput.h"
#include "xf86InPriv.h"
#include "xf86Crtc.h"
#include "picturestr.h"
#include "randrstr.h"
#include "glxvndabi.h"
#include "xf86Bus.h"
#ifdef XSERVER_LIBPCIACCESS
#include "xf86VGAarbiter.h"
#endif
#include "globals.h"
#include "xserver-properties.h"
#ifdef DPMSExtension
#include <X11/extensions/dpmsconst.h>
#include "dpmsproc.h"
#endif
#include <hotplug.h>
void (*xf86OSPMClose) (void) = NULL;
static Bool xorgHWOpenConsole = FALSE;
/* Common pixmap formats */
static PixmapFormatRec formats[MAXFORMATS] = {
{1, 1, BITMAP_SCANLINE_PAD},
{4, 8, BITMAP_SCANLINE_PAD},
{8, 8, BITMAP_SCANLINE_PAD},
{15, 16, BITMAP_SCANLINE_PAD},
{16, 16, BITMAP_SCANLINE_PAD},
{24, 32, BITMAP_SCANLINE_PAD},
{32, 32, BITMAP_SCANLINE_PAD},
};
static int numFormats = 7;
static Bool formatsDone = FALSE;
#ifndef PRE_RELEASE
#define PRE_RELEASE XORG_VERSION_SNAP
#endif
static void
xf86PrintBanner(void)
{
#if PRE_RELEASE
xf86ErrorFVerb(0, "\n"
"This is a pre-release version of the X server from "
XVENDORNAME ".\n" "It is not supported in any way.\n"
"Bugs may be filed in the bugzilla at http://bugs.freedesktop.org/.\n"
"Select the \"xorg\" product for bugs you find in this release.\n"
"Before reporting bugs in pre-release versions please check the\n"
"latest version in the X.Org Foundation git repository.\n"
"See http://wiki.x.org/wiki/GitPage for git access instructions.\n");
#endif
xf86ErrorFVerb(0, "\nX.Org X Server %d.%d.%d",
XORG_VERSION_MAJOR, XORG_VERSION_MINOR, XORG_VERSION_PATCH);
#if XORG_VERSION_SNAP > 0
xf86ErrorFVerb(0, ".%d", XORG_VERSION_SNAP);
#endif
#if XORG_VERSION_SNAP >= 900
/* When the minor number is 99, that signifies that the we are making
* a release candidate for a major version. (X.0.0)
* When the patch number is 99, that signifies that the we are making
* a release candidate for a minor version. (X.Y.0)
* When the patch number is < 99, then we are making a release
* candidate for the next point release. (X.Y.Z)
*/
#if XORG_VERSION_MINOR >= 99
xf86ErrorFVerb(0, " (%d.0.0 RC %d)", XORG_VERSION_MAJOR + 1,
XORG_VERSION_SNAP - 900);
#elif XORG_VERSION_PATCH == 99
xf86ErrorFVerb(0, " (%d.%d.0 RC %d)", XORG_VERSION_MAJOR,
XORG_VERSION_MINOR + 1, XORG_VERSION_SNAP - 900);
#else
xf86ErrorFVerb(0, " (%d.%d.%d RC %d)", XORG_VERSION_MAJOR,
XORG_VERSION_MINOR, XORG_VERSION_PATCH + 1,
XORG_VERSION_SNAP - 900);
#endif
#endif
#ifdef XORG_CUSTOM_VERSION
xf86ErrorFVerb(0, " (%s)", XORG_CUSTOM_VERSION);
#endif
xf86ErrorFVerb(0, "\nX Protocol Version %d, Revision %d\n",
X_PROTOCOL, X_PROTOCOL_REVISION);
#ifdef HAS_UTSNAME
{
struct utsname name;
/* Linux & BSD state that 0 is success, SysV (including Solaris, HP-UX,
and Irix) and Single Unix Spec 3 just say that non-negative is success.
All agree that failure is represented by a negative number.
*/
if (uname(&name) >= 0) {
xf86ErrorFVerb(0, "Current Operating System: %s %s %s %s %s\n",
name.sysname, name.nodename, name.release,
name.version, name.machine);
#ifdef __linux__
do {
char buf[80];
int fd = open("/proc/cmdline", O_RDONLY);
if (fd != -1) {
xf86ErrorFVerb(0, "Kernel command line: ");
memset(buf, 0, 80);
while (read(fd, buf, 80) > 0) {
xf86ErrorFVerb(0, "%.80s", buf);
memset(buf, 0, 80);
}
close(fd);
}
} while (0);
#endif
}
}
#endif
#if defined(BUILD_DATE) && (BUILD_DATE > 19000000)
{
struct tm t;
char buf[100];
memset(&t, 0, sizeof(t));
memset(buf, 0, sizeof(buf));
t.tm_mday = BUILD_DATE % 100;
t.tm_mon = (BUILD_DATE / 100) % 100 - 1;
t.tm_year = BUILD_DATE / 10000 - 1900;
#if defined(BUILD_TIME)
t.tm_sec = BUILD_TIME % 100;
t.tm_min = (BUILD_TIME / 100) % 100;
t.tm_hour = (BUILD_TIME / 10000) % 100;
if (strftime(buf, sizeof(buf), "%d %B %Y %I:%M:%S%p", &t))
xf86ErrorFVerb(0, "Build Date: %s\n", buf);
#else
if (strftime(buf, sizeof(buf), "%d %B %Y", &t))
xf86ErrorFVerb(0, "Build Date: %s\n", buf);
#endif
}
#endif
#if defined(BUILDERSTRING)
xf86ErrorFVerb(0, "%s \n", BUILDERSTRING);
#endif
xf86ErrorFVerb(0, "Current version of pixman: %s\n",
pixman_version_string());
xf86ErrorFVerb(0, "\tBefore reporting problems, check "
"" __VENDORDWEBSUPPORT__ "\n"
"\tto make sure that you have the latest version.\n");
}
Bool
xf86PrivsElevated(void)
{
return PrivsElevated();
}
static void
xf86AutoConfigOutputDevices(void)
{
int i;
if (!xf86Info.autoBindGPU)
return;
for (i = 0; i < xf86NumGPUScreens; i++)
RRProviderAutoConfigGpuScreen(xf86ScrnToScreen(xf86GPUScreens[i]),
xf86ScrnToScreen(xf86Screens[0]));
}
static void
AddSeatId(CallbackListPtr *pcbl, void *data, void *screen)
{
ScreenPtr pScreen = screen;
Atom SeatAtom = MakeAtom(SEAT_ATOM_NAME, sizeof(SEAT_ATOM_NAME) - 1, TRUE);
int err;
err = dixChangeWindowProperty(serverClient, pScreen->root, SeatAtom,
XA_STRING, 8, PropModeReplace,
strlen(data) + 1, data, FALSE);
if (err != Success)
xf86DrvMsg(pScreen->myNum, X_WARNING,
"Failed to register seat property\n");
}
static void
AddVTAtoms(CallbackListPtr *pcbl, void *data, void *screen)
{
#define VT_ATOM_NAME "XFree86_VT"
int err, HasVT = 1;
ScreenPtr pScreen = screen;
Atom VTAtom = MakeAtom(VT_ATOM_NAME, sizeof(VT_ATOM_NAME) - 1, TRUE);
Atom HasVTAtom = MakeAtom(HAS_VT_ATOM_NAME, sizeof(HAS_VT_ATOM_NAME) - 1,
TRUE);
err = dixChangeWindowProperty(serverClient, pScreen->root, VTAtom,
XA_INTEGER, 32, PropModeReplace, 1,
&xf86Info.vtno, FALSE);
err |= dixChangeWindowProperty(serverClient, pScreen->root, HasVTAtom,
XA_INTEGER, 32, PropModeReplace, 1,
&HasVT, FALSE);
if (err != Success)
xf86DrvMsg(pScreen->myNum, X_WARNING,
"Failed to register VT properties\n");
}
static Bool
xf86ScreenInit(ScreenPtr pScreen, int argc, char **argv)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
pScrn->pScreen = pScreen;
return pScrn->ScreenInit (pScreen, argc, argv);
}
static void
xf86EnsureRANDR(ScreenPtr pScreen)
{
#ifdef RANDR
if (!dixPrivateKeyRegistered(rrPrivKey) ||
!rrGetScrPriv(pScreen))
xf86RandRInit(pScreen);
#endif
}
/*
* InitOutput --
* Initialize screenInfo for all actually accessible framebuffers.
* That includes vt-manager setup, querying all possible devices and
* collecting the pixmap formats.
*/
void
InitOutput(ScreenInfo * pScreenInfo, int argc, char **argv)
{
int i, j, k, scr_index;
const char **modulelist;
void **optionlist;
Bool autoconfig = FALSE;
Bool sigio_blocked = FALSE;
Bool want_hw_access = FALSE;
GDevPtr configured_device;
xf86Initialising = TRUE;
config_pre_init();
if (serverGeneration == 1) {
xf86PrintBanner();
LogPrintMarkers();
if (xf86LogFile) {
time_t t;
const char *ct;
t = time(NULL);
ct = ctime(&t);
xf86MsgVerb(xf86LogFileFrom, 0, "Log file: \"%s\", Time: %s",
xf86LogFile, ct);
}
/* Read and parse the config file */
if (!xf86DoConfigure && !xf86DoShowOptions) {
switch (xf86HandleConfigFile(FALSE)) {
case CONFIG_OK:
break;
case CONFIG_PARSE_ERROR:
xf86Msg(X_ERROR, "Error parsing the config file\n");
return;
case CONFIG_NOFILE:
autoconfig = TRUE;
break;
}
}
/* Initialise the loader */
LoaderInit();
/* Tell the loader the default module search path */
LoaderSetPath(xf86ModulePath);
if (xf86Info.ignoreABI) {
LoaderSetOptions(LDR_OPT_ABI_MISMATCH_NONFATAL);
}
if (xf86DoShowOptions)
DoShowOptions();
dbus_core_init();
systemd_logind_init();
/* Do a general bus probe. This will be a PCI probe for x86 platforms */
xf86BusProbe();
if (xf86DoConfigure)
DoConfigure();
if (autoconfig) {
if (!xf86AutoConfig()) {
xf86Msg(X_ERROR, "Auto configuration failed\n");
return;
}
}
xf86OSPMClose = xf86OSPMOpen();
xf86ExtensionInit();
/* Load all modules specified explicitly in the config file */
if ((modulelist = xf86ModulelistFromConfig(&optionlist))) {
xf86LoadModules(modulelist, optionlist);
free(modulelist);
free(optionlist);
}
/* Load all driver modules specified in the config file */
/* If there aren't any specified in the config file, autoconfig them */
/* FIXME: Does not handle multiple active screen sections, but I'm not
* sure if we really want to handle that case*/
configured_device = xf86ConfigLayout.screens->screen->device;
if ((!configured_device) || (!configured_device->driver)) {
if (!autoConfigDevice(configured_device)) {
xf86Msg(X_ERROR, "Automatic driver configuration failed\n");
return;
}
}
if ((modulelist = xf86DriverlistFromConfig())) {
xf86LoadModules(modulelist, NULL);
free(modulelist);
}
/* Load all input driver modules specified in the config file. */
if ((modulelist = xf86InputDriverlistFromConfig())) {
xf86LoadModules(modulelist, NULL);
free(modulelist);
}
/*
* It is expected that xf86AddDriver()/xf86AddInputDriver will be
* called for each driver as it is loaded. Those functions save the
* module pointers for drivers.
* XXX Nothing keeps track of them for other modules.
*/
/* XXX What do we do if not all of these could be loaded? */
/*
* At this point, xf86DriverList[] is all filled in with entries for
* each of the drivers to try and xf86NumDrivers has the number of
* drivers. If there are none, return now.
*/
if (xf86NumDrivers == 0) {
xf86Msg(X_ERROR, "No drivers available.\n");
return;
}
/*
* Call each of the Identify functions and call the driverFunc to check
* if HW access is required. The Identify functions print out some
* identifying information, and anything else that might be
* needed at this early stage.
*/
for (i = 0; i < xf86NumDrivers; i++) {
xorgHWFlags flags = HW_IO;
if (xf86DriverList[i]->Identify != NULL)
xf86DriverList[i]->Identify(0);
if (xf86DriverList[i]->driverFunc)
xf86DriverList[i]->driverFunc(NULL,
GET_REQUIRED_HW_INTERFACES,
&flags);
if (NEED_IO_ENABLED(flags))
want_hw_access = TRUE;
/* Non-seat0 X servers should not open console */
if (!(flags & HW_SKIP_CONSOLE) && !ServerIsNotSeat0())
xorgHWOpenConsole = TRUE;
}
if (xorgHWOpenConsole)
xf86OpenConsole();
else
xf86Info.dontVTSwitch = TRUE;
/* Enable full I/O access */
if (want_hw_access)
xorgHWAccess = xf86EnableIO();
if (xf86BusConfig() == FALSE)
return;
xf86PostProbe();
/*
* Sort the drivers to match the requested ording. Using a slow
* bubble sort.
*/
for (j = 0; j < xf86NumScreens - 1; j++) {
for (i = 0; i < xf86NumScreens - j - 1; i++) {
if (xf86Screens[i + 1]->confScreen->screennum <
xf86Screens[i]->confScreen->screennum) {
ScrnInfoPtr tmpScrn = xf86Screens[i + 1];
xf86Screens[i + 1] = xf86Screens[i];
xf86Screens[i] = tmpScrn;
}
}
}
/* Fix up the indexes */
for (i = 0; i < xf86NumScreens; i++) {
xf86Screens[i]->scrnIndex = i;
}
/*
* Call the driver's PreInit()'s to complete initialisation for the first
* generation.
*/
for (i = 0; i < xf86NumScreens; i++) {
xf86VGAarbiterScrnInit(xf86Screens[i]);
xf86VGAarbiterLock(xf86Screens[i]);
if (xf86Screens[i]->PreInit &&
xf86Screens[i]->PreInit(xf86Screens[i], 0))
xf86Screens[i]->configured = TRUE;
xf86VGAarbiterUnlock(xf86Screens[i]);
}
for (i = 0; i < xf86NumScreens; i++)
if (!xf86Screens[i]->configured)
xf86DeleteScreen(xf86Screens[i--]);
for (i = 0; i < xf86NumGPUScreens; i++) {
xf86VGAarbiterScrnInit(xf86GPUScreens[i]);
xf86VGAarbiterLock(xf86GPUScreens[i]);
if (xf86GPUScreens[i]->PreInit &&
xf86GPUScreens[i]->PreInit(xf86GPUScreens[i], 0))
xf86GPUScreens[i]->configured = TRUE;
xf86VGAarbiterUnlock(xf86GPUScreens[i]);
}
for (i = 0; i < xf86NumGPUScreens; i++)
if (!xf86GPUScreens[i]->configured)
xf86DeleteScreen(xf86GPUScreens[i--]);
/*
* If no screens left, return now.
*/
if (xf86NumScreens == 0) {
xf86Msg(X_ERROR,
"Screen(s) found, but none have a usable configuration.\n");
return;
}
/* Remove (unload) drivers that are not required */
for (i = 0; i < xf86NumDrivers; i++)
if (xf86DriverList[i] && xf86DriverList[i]->refCount <= 0)
xf86DeleteDriver(i);
/*
* At this stage we know how many screens there are.
*/
for (i = 0; i < xf86NumScreens; i++)
xf86InitViewport(xf86Screens[i]);
/*
* Collect all pixmap formats and check for conflicts at the display
* level. Should we die here? Or just delete the offending screens?
*/
for (i = 0; i < xf86NumScreens; i++) {
if (xf86Screens[i]->imageByteOrder !=
xf86Screens[0]->imageByteOrder)
FatalError("Inconsistent display bitmapBitOrder. Exiting\n");
if (xf86Screens[i]->bitmapScanlinePad !=
xf86Screens[0]->bitmapScanlinePad)
FatalError
("Inconsistent display bitmapScanlinePad. Exiting\n");
if (xf86Screens[i]->bitmapScanlineUnit !=
xf86Screens[0]->bitmapScanlineUnit)
FatalError
("Inconsistent display bitmapScanlineUnit. Exiting\n");
if (xf86Screens[i]->bitmapBitOrder !=
xf86Screens[0]->bitmapBitOrder)
FatalError("Inconsistent display bitmapBitOrder. Exiting\n");
}
/* Collect additional formats */
for (i = 0; i < xf86NumScreens; i++) {
for (j = 0; j < xf86Screens[i]->numFormats; j++) {
for (k = 0;; k++) {
if (k >= numFormats) {
if (k >= MAXFORMATS)
FatalError("Too many pixmap formats! Exiting\n");
formats[k] = xf86Screens[i]->formats[j];
numFormats++;
break;
}
if (formats[k].depth == xf86Screens[i]->formats[j].depth) {
if ((formats[k].bitsPerPixel ==
xf86Screens[i]->formats[j].bitsPerPixel) &&
(formats[k].scanlinePad ==
xf86Screens[i]->formats[j].scanlinePad))
break;
FatalError("Inconsistent pixmap format for depth %d."
" Exiting\n", formats[k].depth);
}
}
}
}
formatsDone = TRUE;
}
else {
/*
* serverGeneration != 1; some OSs have to do things here, too.
*/
if (xorgHWOpenConsole)
xf86OpenConsole();
/*
should we reopen it here? We need to deal with an already opened
device. We could leave this to the OS layer. For now we simply
close it here
*/
if (xf86OSPMClose)
xf86OSPMClose();
if ((xf86OSPMClose = xf86OSPMOpen()) != NULL)
xf86MsgVerb(X_INFO, 3, "APM registered successfully\n");
/* Make sure full I/O access is enabled */
if (xorgHWAccess)
xf86EnableIO();
}
if (xf86Info.vtno >= 0)
AddCallback(&RootWindowFinalizeCallback, AddVTAtoms, NULL);
if (SeatId)
AddCallback(&RootWindowFinalizeCallback, AddSeatId, SeatId);
/*
* Use the previously collected parts to setup pScreenInfo
*/
pScreenInfo->imageByteOrder = xf86Screens[0]->imageByteOrder;
pScreenInfo->bitmapScanlinePad = xf86Screens[0]->bitmapScanlinePad;
pScreenInfo->bitmapScanlineUnit = xf86Screens[0]->bitmapScanlineUnit;
pScreenInfo->bitmapBitOrder = xf86Screens[0]->bitmapBitOrder;
pScreenInfo->numPixmapFormats = numFormats;
for (i = 0; i < numFormats; i++)
pScreenInfo->formats[i] = formats[i];
/* Make sure the server's VT is active */
if (serverGeneration != 1) {
xf86Resetting = TRUE;
/* All screens are in the same state, so just check the first */
if (!xf86VTOwner()) {
#ifdef HAS_USL_VTS
ioctl(xf86Info.consoleFd, VT_RELDISP, VT_ACKACQ);
#endif
input_lock();
sigio_blocked = TRUE;
}
}
for (i = 0; i < xf86NumScreens; i++)
if (!xf86ColormapAllocatePrivates(xf86Screens[i]))
FatalError("Cannot register DDX private keys");
if (!dixRegisterPrivateKey(&xf86ScreenKeyRec, PRIVATE_SCREEN, 0))
FatalError("Cannot register DDX private keys");
for (i = 0; i < xf86NumGPUScreens; i++) {
ScrnInfoPtr pScrn = xf86GPUScreens[i];
xf86VGAarbiterLock(pScrn);
/*
* Almost everything uses these defaults, and many of those that
* don't, will wrap them.
*/
pScrn->EnableDisableFBAccess = xf86EnableDisableFBAccess;
#ifdef XFreeXDGA
pScrn->SetDGAMode = xf86SetDGAMode;
#endif
scr_index = AddGPUScreen(xf86ScreenInit, argc, argv);
xf86VGAarbiterUnlock(pScrn);
if (scr_index == i) {
dixSetPrivate(&screenInfo.gpuscreens[scr_index]->devPrivates,
xf86ScreenKey, xf86GPUScreens[i]);
pScrn->pScreen = screenInfo.gpuscreens[scr_index];
/* The driver should set this, but make sure it is set anyway */
pScrn->vtSema = TRUE;
} else {
FatalError("AddScreen/ScreenInit failed for gpu driver %d %d\n", i, scr_index);
}
}
for (i = 0; i < xf86NumScreens; i++) {
xf86VGAarbiterLock(xf86Screens[i]);
/*
* Almost everything uses these defaults, and many of those that
* don't, will wrap them.
*/
xf86Screens[i]->EnableDisableFBAccess = xf86EnableDisableFBAccess;
#ifdef XFreeXDGA
xf86Screens[i]->SetDGAMode = xf86SetDGAMode;
#endif
scr_index = AddScreen(xf86ScreenInit, argc, argv);
xf86VGAarbiterUnlock(xf86Screens[i]);
if (scr_index == i) {
/*
* Hook in our ScrnInfoRec, and initialise some other pScreen
* fields.
*/
dixSetPrivate(&screenInfo.screens[scr_index]->devPrivates,
xf86ScreenKey, xf86Screens[i]);
xf86Screens[i]->pScreen = screenInfo.screens[scr_index];
/* The driver should set this, but make sure it is set anyway */
xf86Screens[i]->vtSema = TRUE;
}
else {
/* This shouldn't normally happen */
FatalError("AddScreen/ScreenInit failed for driver %d\n", i);
}
if (PictureGetSubpixelOrder(xf86Screens[i]->pScreen) == SubPixelUnknown) {
xf86MonPtr DDC = (xf86MonPtr) (xf86Screens[i]->monitor->DDC);
PictureSetSubpixelOrder(xf86Screens[i]->pScreen,
DDC ?
(DDC->features.input_type ?
SubPixelHorizontalRGB : SubPixelNone) :
SubPixelUnknown);
}
/*
* If the driver hasn't set up its own RANDR support, install the
* fallback support.
*/
xf86EnsureRANDR(xf86Screens[i]->pScreen);
}
for (i = 0; i < xf86NumGPUScreens; i++)
AttachUnboundGPU(xf86Screens[0]->pScreen, xf86GPUScreens[i]->pScreen);
xf86AutoConfigOutputDevices();
xf86VGAarbiterWrapFunctions();
if (sigio_blocked)
input_unlock();
xf86InitOrigins();
xf86Resetting = FALSE;
xf86Initialising = FALSE;
RegisterBlockAndWakeupHandlers((ServerBlockHandlerProcPtr) NoopDDA, xf86Wakeup,
NULL);
}
/**
* Initialize all supported input devices present and referenced in the
* xorg.conf.
*/
void
InitInput(int argc, char **argv)
{
InputInfoPtr *pInfo;
DeviceIntPtr dev;
xf86Info.vtRequestsPending = FALSE;
/* Enable threaded input */
InputThreadPreInit();
mieqInit();
/* Initialize all configured input devices */
for (pInfo = xf86ConfigLayout.inputs; pInfo && *pInfo; pInfo++) {
(*pInfo)->options =
xf86AddNewOption((*pInfo)->options, "driver", (*pInfo)->driver);
(*pInfo)->options =
xf86AddNewOption((*pInfo)->options, "identifier", (*pInfo)->name);
/* If one fails, the others will too */
if (NewInputDeviceRequest((*pInfo)->options, NULL, &dev) == BadAlloc)
break;
}
config_init();
}
void
CloseInput(void)
{
config_fini();
mieqFini();
}
/*
* OsVendorInit --
* OS/Vendor-specific initialisations. Called from OsInit(), which
* is called by dix before establishing the well known sockets.
*/
void
OsVendorInit(void)
{
static Bool beenHere = FALSE;
OsSignal(SIGCHLD, SIG_DFL); /* Need to wait for child processes */
if (!beenHere) {
umask(022);
xf86LogInit();
}
/* Set stderr to non-blocking. */
#ifndef O_NONBLOCK
#if defined(FNDELAY)
#define O_NONBLOCK FNDELAY
#elif defined(O_NDELAY)
#define O_NONBLOCK O_NDELAY
#endif
#ifdef O_NONBLOCK
if (!beenHere) {
if (PrivsElevated()) {
int status;
status = fcntl(fileno(stderr), F_GETFL, 0);
if (status != -1) {
fcntl(fileno(stderr), F_SETFL, status | O_NONBLOCK);
}
}
}
#endif
#endif
beenHere = TRUE;
}
/*
* ddxGiveUp --
* Device dependent cleanup. Called by by dix before normal server death.
* For SYSV386 we must switch the terminal back to normal mode. No error-
* checking here, since there should be restored as much as possible.
*/
void
ddxGiveUp(enum ExitCode error)
{
int i;
if (error == EXIT_ERR_ABORT) {
input_lock();
/* try to restore the original video state */
#ifdef DPMSExtension /* Turn screens back on */
if (DPMSPowerLevel != DPMSModeOn)
DPMSSet(serverClient, DPMSModeOn);
#endif
if (xf86Screens) {
for (i = 0; i < xf86NumScreens; i++)
if (xf86Screens[i]->vtSema) {
/*
* if we are aborting before ScreenInit() has finished we
* might not have been wrapped yet. Therefore enable screen
* explicitly.
*/
xf86VGAarbiterLock(xf86Screens[i]);
(xf86Screens[i]->LeaveVT) (xf86Screens[i]);
xf86VGAarbiterUnlock(xf86Screens[i]);
}
}
}
xf86VGAarbiterFini();
if (xf86OSPMClose)
xf86OSPMClose();
xf86OSPMClose = NULL;
for (i = 0; i < xf86NumScreens; i++) {
/*
* zero all access functions to
* trap calls when switched away.
*/
xf86Screens[i]->vtSema = FALSE;
}
if (xorgHWOpenConsole)
xf86CloseConsole();
systemd_logind_fini();
dbus_core_fini();
xf86CloseLog(error);
}
void
OsVendorFatalError(const char *f, va_list args)
{
#ifdef VENDORSUPPORT
ErrorFSigSafe("\nPlease refer to your Operating System Vendor support "
"pages\nat %s for support on this crash.\n", VENDORSUPPORT);
#else
ErrorFSigSafe("\nPlease consult the " XVENDORNAME " support \n\t at "
__VENDORDWEBSUPPORT__ "\n for help. \n");
#endif
if (xf86LogFile && xf86LogFileWasOpened)
ErrorFSigSafe("Please also check the log file at \"%s\" for additional "
"information.\n", xf86LogFile);
ErrorFSigSafe("\n");
}
int
xf86SetVerbosity(int verb)
{
int save = xf86Verbose;
xf86Verbose = verb;
LogSetParameter(XLOG_VERBOSITY, verb);
return save;
}
int
xf86SetLogVerbosity(int verb)
{
int save = xf86LogVerbose;
xf86LogVerbose = verb;
LogSetParameter(XLOG_FILE_VERBOSITY, verb);
return save;
}
static void
xf86PrintDefaultModulePath(void)
{
ErrorF("%s\n", DEFAULT_MODULE_PATH);
}
static void
xf86PrintDefaultLibraryPath(void)
{
ErrorF("%s\n", DEFAULT_LIBRARY_PATH);
}
static void
xf86CheckPrivs(const char *option, const char *arg)
{
if (PrivsElevated() && !xf86PathIsSafe(arg)) {
FatalError("\nInvalid argument for %s - \"%s\"\n"
"\tWith elevated privileges %s must specify a relative path\n"
"\twithout any \"..\" elements.\n\n", option, arg, option);
}
}
/*
* ddxProcessArgument --
* Process device-dependent command line args. Returns 0 if argument is
* not device dependent, otherwise Count of number of elements of argv
* that are part of a device dependent commandline option.
*
*/
/* ARGSUSED */
int
ddxProcessArgument(int argc, char **argv, int i)
{
/* First the options that are not allowed with elevated privileges */
if (!strcmp(argv[i], "-modulepath")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (xf86PrivsElevated())
FatalError("\nInvalid argument -modulepath "
"with elevated privileges\n");
xf86ModulePath = argv[i + 1];
xf86ModPathFrom = X_CMDLINE;
return 2;
}
if (!strcmp(argv[i], "-logfile")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (xf86PrivsElevated())
FatalError("\nInvalid argument -logfile "
"with elevated privileges\n");
xf86LogFile = argv[i + 1];
xf86LogFileFrom = X_CMDLINE;
return 2;
}
if (!strcmp(argv[i], "-config") || !strcmp(argv[i], "-xf86config")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xf86CheckPrivs(argv[i], argv[i + 1]);
xf86ConfigFile = argv[i + 1];
return 2;
}
if (!strcmp(argv[i], "-configdir")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xf86CheckPrivs(argv[i], argv[i + 1]);
xf86ConfigDir = argv[i + 1];
return 2;
}
#ifdef XF86VIDMODE
if (!strcmp(argv[i], "-disableVidMode")) {
xf86VidModeDisabled = TRUE;
return 1;
}
if (!strcmp(argv[i], "-allowNonLocalXvidtune")) {
xf86VidModeAllowNonLocal = TRUE;
return 1;
}
#endif
if (!strcmp(argv[i], "-allowMouseOpenFail")) {
xf86AllowMouseOpenFail = TRUE;
return 1;
}
if (!strcmp(argv[i], "-ignoreABI")) {
LoaderSetOptions(LDR_OPT_ABI_MISMATCH_NONFATAL);
return 1;
}
if (!strcmp(argv[i], "-verbose")) {
if (++i < argc && argv[i]) {
char *end;
long val;
val = strtol(argv[i], &end, 0);
if (*end == '\0') {
xf86SetVerbosity(val);
return 2;
}
}
xf86SetVerbosity(++xf86Verbose);
return 1;
}
if (!strcmp(argv[i], "-logverbose")) {
if (++i < argc && argv[i]) {
char *end;
long val;
val = strtol(argv[i], &end, 0);
if (*end == '\0') {
xf86SetLogVerbosity(val);
return 2;
}
}
xf86SetLogVerbosity(++xf86LogVerbose);
return 1;
}
if (!strcmp(argv[i], "-quiet")) {
xf86SetVerbosity(-1);
return 1;
}
if (!strcmp(argv[i], "-showconfig") || !strcmp(argv[i], "-version")) {
xf86PrintBanner();
exit(0);
}
if (!strcmp(argv[i], "-showDefaultModulePath")) {
xf86PrintDefaultModulePath();
exit(0);
}
if (!strcmp(argv[i], "-showDefaultLibPath")) {
xf86PrintDefaultLibraryPath();
exit(0);
}
/* Notice the -fp flag, but allow it to pass to the dix layer */
if (!strcmp(argv[i], "-fp")) {
xf86fpFlag = TRUE;
return 0;
}
/* Notice the -bs flag, but allow it to pass to the dix layer */
if (!strcmp(argv[i], "-bs")) {
xf86bsDisableFlag = TRUE;
return 0;
}
/* Notice the +bs flag, but allow it to pass to the dix layer */
if (!strcmp(argv[i], "+bs")) {
xf86bsEnableFlag = TRUE;
return 0;
}
/* Notice the -s flag, but allow it to pass to the dix layer */
if (!strcmp(argv[i], "-s")) {
xf86sFlag = TRUE;
return 0;
}
if (!strcmp(argv[i], "-pixmap32") || !strcmp(argv[i], "-pixmap24")) {
/* silently accept */
return 1;
}
if (!strcmp(argv[i], "-fbbpp")) {
int bpp;
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (sscanf(argv[++i], "%d", &bpp) == 1) {
xf86FbBpp = bpp;
return 2;
}
else {
ErrorF("Invalid fbbpp\n");
return 0;
}
}
if (!strcmp(argv[i], "-depth")) {
int depth;
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (sscanf(argv[++i], "%d", &depth) == 1) {
xf86Depth = depth;
return 2;
}
else {
ErrorF("Invalid depth\n");
return 0;
}
}
if (!strcmp(argv[i], "-weight")) {
int red, green, blue;
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (sscanf(argv[++i], "%1d%1d%1d", &red, &green, &blue) == 3) {
xf86Weight.red = red;
xf86Weight.green = green;
xf86Weight.blue = blue;
return 2;
}
else {
ErrorF("Invalid weighting\n");
return 0;
}
}
if (!strcmp(argv[i], "-gamma") || !strcmp(argv[i], "-rgamma") ||
!strcmp(argv[i], "-ggamma") || !strcmp(argv[i], "-bgamma")) {
double gamma;
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (sscanf(argv[++i], "%lf", &gamma) == 1) {
if (gamma < GAMMA_MIN || gamma > GAMMA_MAX) {
ErrorF("gamma out of range, only %.2f <= gamma_value <= %.1f"
" is valid\n", GAMMA_MIN, GAMMA_MAX);
return 0;
}
if (!strcmp(argv[i - 1], "-gamma"))
xf86Gamma.red = xf86Gamma.green = xf86Gamma.blue = gamma;
else if (!strcmp(argv[i - 1], "-rgamma"))
xf86Gamma.red = gamma;
else if (!strcmp(argv[i - 1], "-ggamma"))
xf86Gamma.green = gamma;
else if (!strcmp(argv[i - 1], "-bgamma"))
xf86Gamma.blue = gamma;
return 2;
}
}
if (!strcmp(argv[i], "-layout")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xf86LayoutName = argv[++i];
return 2;
}
if (!strcmp(argv[i], "-screen")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xf86ScreenName = argv[++i];
return 2;
}
if (!strcmp(argv[i], "-pointer")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xf86PointerName = argv[++i];
return 2;
}
if (!strcmp(argv[i], "-keyboard")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
xf86KeyboardName = argv[++i];
return 2;
}
if (!strcmp(argv[i], "-nosilk")) {
xf86silkenMouseDisableFlag = TRUE;
return 1;
}
#ifdef HAVE_ACPI
if (!strcmp(argv[i], "-noacpi")) {
xf86acpiDisableFlag = TRUE;
return 1;
}
#endif
if (!strcmp(argv[i], "-configure")) {
if (getuid() != 0 && geteuid() == 0) {
ErrorF("The '-configure' option can only be used by root.\n");
exit(1);
}
xf86DoConfigure = TRUE;
xf86AllowMouseOpenFail = TRUE;
return 1;
}
if (!strcmp(argv[i], "-showopts")) {
if (getuid() != 0 && geteuid() == 0) {
ErrorF("The '-showopts' option can only be used by root.\n");
exit(1);
}
xf86DoShowOptions = TRUE;
return 1;
}
#ifdef XSERVER_LIBPCIACCESS
if (!strcmp(argv[i], "-isolateDevice")) {
CHECK_FOR_REQUIRED_ARGUMENTS(1);
if (strncmp(argv[++i], "PCI:", 4)) {
FatalError("Bus types other than PCI not yet isolable\n");
}
xf86PciIsolateDevice(argv[i]);
return 2;
}
#endif
/* Notice cmdline xkbdir, but pass to dix as well */
if (!strcmp(argv[i], "-xkbdir")) {
xf86xkbdirFlag = TRUE;
return 0;
}
if (!strcmp(argv[i], "-novtswitch")) {
xf86Info.autoVTSwitch = FALSE;
return 1;
}
if (!strcmp(argv[i], "-sharevts")) {
xf86Info.ShareVTs = TRUE;
return 1;
}
if (!strcmp(argv[i], "-iglx") || !strcmp(argv[i], "+iglx")) {
xf86Info.iglxFrom = X_CMDLINE;
return 0;
}
if (!strcmp(argv[i], "-noautoBindGPU")) {
xf86AutoBindGPUDisabled = TRUE;
return 1;
}
/* OS-specific processing */
return xf86ProcessArgument(argc, argv, i);
}
/*
* ddxUseMsg --
* Print out correct use of device dependent commandline options.
* Maybe the user now knows what really to do ...
*/
void
ddxUseMsg(void)
{
ErrorF("\n");
ErrorF("\n");
ErrorF("Device Dependent Usage\n");
if (!PrivsElevated()) {
ErrorF("-modulepath paths specify the module search path\n");
ErrorF("-logfile file specify a log file name\n");
ErrorF("-configure probe for devices and write an "
XCONFIGFILE "\n");
ErrorF
("-showopts print available options for all installed drivers\n");
}
ErrorF
("-config file specify a configuration file, relative to the\n");
ErrorF(" " XCONFIGFILE
" search path, only root can use absolute\n");
ErrorF
("-configdir dir specify a configuration directory, relative to the\n");
ErrorF(" " XCONFIGDIR
" search path, only root can use absolute\n");
ErrorF("-verbose [n] verbose startup messages\n");
ErrorF("-logverbose [n] verbose log messages\n");
ErrorF("-quiet minimal startup messages\n");
ErrorF("-fbbpp n set bpp for the framebuffer. Default: 8\n");
ErrorF("-depth n set colour depth. Default: 8\n");
ErrorF
("-gamma f set gamma value (0.1 < f < 10.0) Default: 1.0\n");
ErrorF("-rgamma f set gamma value for red phase\n");
ErrorF("-ggamma f set gamma value for green phase\n");
ErrorF("-bgamma f set gamma value for blue phase\n");
ErrorF
("-weight nnn set RGB weighting at 16 bpp. Default: 565\n");
ErrorF("-layout name specify the ServerLayout section name\n");
ErrorF("-screen name specify the Screen section name\n");
ErrorF
("-keyboard name specify the core keyboard InputDevice name\n");
ErrorF
("-pointer name specify the core pointer InputDevice name\n");
ErrorF("-nosilk disable Silken Mouse\n");
#ifdef XF86VIDMODE
ErrorF("-disableVidMode disable mode adjustments with xvidtune\n");
ErrorF
("-allowNonLocalXvidtune allow xvidtune to be run as a non-local client\n");
#endif
ErrorF
("-allowMouseOpenFail start server even if the mouse can't be initialized\n");
ErrorF("-ignoreABI make module ABI mismatches non-fatal\n");
#ifdef XSERVER_LIBPCIACCESS
ErrorF
("-isolateDevice bus_id restrict device resets to bus_id (PCI only)\n");
#endif
ErrorF("-version show the server version\n");
ErrorF("-showDefaultModulePath show the server default module path\n");
ErrorF("-showDefaultLibPath show the server default library path\n");
ErrorF
("-novtswitch don't automatically switch VT at reset & exit\n");
ErrorF("-sharevts share VTs with another X server\n");
/* OS-specific usage */
xf86UseMsg();
ErrorF("\n");
}
/*
* xf86LoadModules iterates over a list that is being passed in.
*/
Bool
xf86LoadModules(const char **list, void **optlist)
{
int errmaj;
void *opt;
int i;
char *name;
Bool failed = FALSE;
if (!list)
return TRUE;
for (i = 0; list[i] != NULL; i++) {
/* Normalise the module name */
name = xf86NormalizeName(list[i]);
/* Skip empty names */
if (name == NULL || *name == '\0') {
free(name);
continue;
}
/* Replace obsolete keyboard driver with kbd */
if (!xf86NameCmp(name, "keyboard")) {
strcpy(name, "kbd");
}
if (optlist)
opt = optlist[i];
else
opt = NULL;
if (!LoadModule(name, opt, NULL, &errmaj)) {
LoaderErrorMsg(NULL, name, errmaj, 0);
failed = TRUE;
}
free(name);
}
return !failed;
}
/* Pixmap format stuff */
PixmapFormatPtr
xf86GetPixFormat(ScrnInfoPtr pScrn, int depth)
{
int i;
for (i = 0; i < numFormats; i++)
if (formats[i].depth == depth)
break;
if (i != numFormats)
return &formats[i];
else if (!formatsDone) {
/* Check for screen-specified formats */
for (i = 0; i < pScrn->numFormats; i++)
if (pScrn->formats[i].depth == depth)
break;
if (i != pScrn->numFormats)
return &pScrn->formats[i];
}
return NULL;
}
int
xf86GetBppFromDepth(ScrnInfoPtr pScrn, int depth)
{
PixmapFormatPtr format;
format = xf86GetPixFormat(pScrn, depth);
if (format)
return format->bitsPerPixel;
else
return 0;
}
#ifdef DDXBEFORERESET
void
ddxBeforeReset(void)
{
}
#endif
#if INPUTTHREAD
/** This function is called in Xserver/os/inputthread.c when starting
the input thread. */
void
ddxInputThreadInit(void)
{
xf86OSInputThreadInit();
}
#endif
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