652 lines
17 KiB
C
652 lines
17 KiB
C
/*
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* Copyright (c) 1997-2003 by The XFree86 Project, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name of the copyright holder(s)
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* and author(s) shall not be used in advertising or otherwise to promote
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* the sale, use or other dealings in this Software without prior written
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* authorization from the copyright holder(s) and author(s).
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*/
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/*
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* This file contains the interfaces to the bus-specific code
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*/
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#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#include <ctype.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <X11/X.h>
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#include "os.h"
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#include "xf86.h"
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#include "xf86Priv.h"
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/* Bus-specific headers */
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#include "xf86Bus.h"
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#define XF86_OS_PRIVS
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#include "xf86_OSproc.h"
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#ifdef XSERVER_LIBPCIACCESS
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#include "xf86VGAarbiter.h"
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#endif
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/* Entity data */
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EntityPtr *xf86Entities = NULL; /* Bus slots claimed by drivers */
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int xf86NumEntities = 0;
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static int xf86EntityPrivateCount = 0;
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BusRec primaryBus = { BUS_NONE, {0} };
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/**
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* Call the driver's correct probe function.
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*
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* If the driver implements the \c DriverRec::PciProbe entry-point and an
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* appropriate PCI device (with matching Device section in the xorg.conf file)
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* is found, it is called. If \c DriverRec::PciProbe or no devices can be
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* successfully probed with it (e.g., only non-PCI devices are available),
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* the driver's \c DriverRec::Probe function is called.
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*
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* \param drv Driver to probe
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*
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* \return
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* If a device can be successfully probed by the driver, \c TRUE is
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* returned. Otherwise, \c FALSE is returned.
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*/
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Bool
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xf86CallDriverProbe(DriverPtr drv, Bool detect_only)
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{
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Bool foundScreen = FALSE;
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#ifdef XSERVER_PLATFORM_BUS
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/* xf86platformBus.c does not support Xorg -configure */
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if (!xf86DoConfigure && drv->platformProbe != NULL) {
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foundScreen = xf86platformProbeDev(drv);
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}
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#endif
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#ifdef XSERVER_LIBPCIACCESS
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if (!foundScreen && (drv->PciProbe != NULL)) {
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if (xf86DoConfigure && xf86DoConfigurePass1) {
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assert(detect_only);
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foundScreen = xf86PciAddMatchingDev(drv);
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}
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else {
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assert(!detect_only);
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foundScreen = xf86PciProbeDev(drv);
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}
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}
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#endif
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if (!foundScreen && (drv->Probe != NULL)) {
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xf86Msg(X_WARNING, "Falling back to old probe method for %s\n",
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drv->driverName);
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foundScreen = (*drv->Probe) (drv, (detect_only) ? PROBE_DETECT
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: PROBE_DEFAULT);
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}
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return foundScreen;
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}
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/**
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* @return TRUE if all buses are configured and set up correctly and FALSE
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* otherwise.
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*/
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Bool
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xf86BusConfig(void)
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{
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screenLayoutPtr layout;
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int i, j;
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/*
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* 3 step probe to (hopefully) ensure that we always find at least 1
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* (non GPU) screen:
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*
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* 1. Call each drivers probe function normally,
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* Each successful probe will result in an extra entry added to the
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* xf86Screens[] list for each instance of the hardware found.
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*/
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for (i = 0; i < xf86NumDrivers; i++) {
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xf86CallDriverProbe(xf86DriverList[i], FALSE);
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}
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/*
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* 2. If no Screens were found, call each drivers probe function with
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* ignorePrimary = TRUE, to ensure that we do actually get a
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* Screen if there is at least one supported video card.
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*/
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if (xf86NumScreens == 0) {
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xf86ProbeIgnorePrimary = TRUE;
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for (i = 0; i < xf86NumDrivers && xf86NumScreens == 0; i++) {
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xf86CallDriverProbe(xf86DriverList[i], FALSE);
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}
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xf86ProbeIgnorePrimary = FALSE;
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}
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/*
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* 3. Call xf86platformAddGPUDevices() to add any additional video cards as
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* GPUScreens (GPUScreens are only supported by platformBus drivers).
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*/
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for (i = 0; i < xf86NumDrivers; i++) {
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xf86platformAddGPUDevices(xf86DriverList[i]);
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}
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/* If nothing was detected, return now */
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if (xf86NumScreens == 0) {
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xf86Msg(X_ERROR, "No devices detected.\n");
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return FALSE;
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}
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xf86VGAarbiterInit();
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/*
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* Match up the screens found by the probes against those specified
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* in the config file. Remove the ones that won't be used. Sort
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* them in the order specified.
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*
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* What is the best way to do this?
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*
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* For now, go through the screens allocated by the probes, and
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* look for screen config entry which refers to the same device
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* section as picked out by the probe.
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*
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*/
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for (i = 0; i < xf86NumScreens; i++) {
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for (layout = xf86ConfigLayout.screens; layout->screen != NULL;
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layout++) {
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Bool found = FALSE;
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for (j = 0; j < xf86Screens[i]->numEntities; j++) {
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GDevPtr dev =
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xf86GetDevFromEntity(xf86Screens[i]->entityList[j],
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xf86Screens[i]->entityInstanceList[j]);
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if (dev == layout->screen->device) {
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/* A match has been found */
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xf86Screens[i]->confScreen = layout->screen;
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found = TRUE;
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break;
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}
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}
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if (found)
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break;
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}
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if (layout->screen == NULL) {
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/* No match found */
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xf86Msg(X_ERROR,
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"Screen %d deleted because of no matching config section.\n",
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i);
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xf86DeleteScreen(xf86Screens[i--]);
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}
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}
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/* bind GPU conf screen to protocol screen 0 */
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for (i = 0; i < xf86NumGPUScreens; i++)
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xf86GPUScreens[i]->confScreen = xf86Screens[0]->confScreen;
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/* If no screens left, return now. */
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if (xf86NumScreens == 0) {
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xf86Msg(X_ERROR,
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"Device(s) detected, but none match those in the config file.\n");
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return FALSE;
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}
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return TRUE;
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}
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/*
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* Call the bus probes relevant to the architecture.
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*
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* The only one available so far is for PCI and SBUS.
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*/
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void
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xf86BusProbe(void)
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{
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#ifdef XSERVER_PLATFORM_BUS
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xf86platformProbe();
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if (ServerIsNotSeat0() && xf86_num_platform_devices > 0)
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return;
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#endif
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#ifdef XSERVER_LIBPCIACCESS
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xf86PciProbe();
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#endif
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#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__)
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xf86SbusProbe();
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#endif
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#ifdef XSERVER_PLATFORM_BUS
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xf86platformPrimary();
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#endif
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}
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/*
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* Determine what bus type the busID string represents. The start of the
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* bus-dependent part of the string is returned as retID.
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*/
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BusType
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StringToBusType(const char *busID, const char **retID)
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{
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char *p, *s;
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BusType ret = BUS_NONE;
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/* If no type field, Default to PCI */
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if (isdigit(busID[0])) {
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if (retID)
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*retID = busID;
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return BUS_PCI;
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}
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s = xstrdup(busID);
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p = strtok(s, ":");
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if (p == NULL || *p == 0) {
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free(s);
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return BUS_NONE;
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}
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if (!xf86NameCmp(p, "pci") || !xf86NameCmp(p, "agp"))
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ret = BUS_PCI;
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if (!xf86NameCmp(p, "sbus"))
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ret = BUS_SBUS;
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if (!xf86NameCmp(p, "platform"))
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ret = BUS_PLATFORM;
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if (ret != BUS_NONE)
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if (retID)
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*retID = busID + strlen(p) + 1;
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free(s);
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return ret;
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}
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int
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xf86AllocateEntity(void)
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{
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xf86NumEntities++;
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xf86Entities = xnfreallocarray(xf86Entities,
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xf86NumEntities, sizeof(EntityPtr));
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xf86Entities[xf86NumEntities - 1] = xnfcalloc(1, sizeof(EntityRec));
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xf86Entities[xf86NumEntities - 1]->entityPrivates =
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xnfcalloc(xf86EntityPrivateCount, sizeof(DevUnion));
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return xf86NumEntities - 1;
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}
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Bool
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xf86IsEntityPrimary(int entityIndex)
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{
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EntityPtr pEnt = xf86Entities[entityIndex];
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#ifdef XSERVER_LIBPCIACCESS
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if (primaryBus.type == BUS_PLATFORM && pEnt->bus.type == BUS_PCI)
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return MATCH_PCI_DEVICES(pEnt->bus.id.pci, primaryBus.id.plat->pdev);
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#endif
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if (primaryBus.type != pEnt->bus.type)
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return FALSE;
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switch (pEnt->bus.type) {
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case BUS_PCI:
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return pEnt->bus.id.pci == primaryBus.id.pci;
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case BUS_SBUS:
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return pEnt->bus.id.sbus.fbNum == primaryBus.id.sbus.fbNum;
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case BUS_PLATFORM:
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return pEnt->bus.id.plat == primaryBus.id.plat;
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default:
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return FALSE;
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}
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}
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Bool
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xf86DriverHasEntities(DriverPtr drvp)
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{
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int i;
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for (i = 0; i < xf86NumEntities; i++) {
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if (xf86Entities[i]->driver == drvp)
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return TRUE;
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}
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return FALSE;
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}
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void
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xf86AddEntityToScreen(ScrnInfoPtr pScrn, int entityIndex)
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{
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if (entityIndex == -1)
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return;
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if (xf86Entities[entityIndex]->inUse &&
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!(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL)) {
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ErrorF("Requested Entity already in use!\n");
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return;
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}
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pScrn->numEntities++;
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pScrn->entityList = xnfreallocarray(pScrn->entityList,
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pScrn->numEntities, sizeof(int));
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pScrn->entityList[pScrn->numEntities - 1] = entityIndex;
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xf86Entities[entityIndex]->inUse = TRUE;
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pScrn->entityInstanceList = xnfreallocarray(pScrn->entityInstanceList,
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pScrn->numEntities,
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sizeof(int));
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pScrn->entityInstanceList[pScrn->numEntities - 1] = 0;
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}
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void
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xf86SetEntityInstanceForScreen(ScrnInfoPtr pScrn, int entityIndex, int instance)
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{
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int i;
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if (entityIndex == -1 || entityIndex >= xf86NumEntities)
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return;
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for (i = 0; i < pScrn->numEntities; i++) {
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if (pScrn->entityList[i] == entityIndex) {
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pScrn->entityInstanceList[i] = instance;
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break;
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}
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}
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}
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/*
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* XXX This needs to be updated for the case where a single entity may have
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* instances associated with more than one screen.
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*/
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ScrnInfoPtr
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xf86FindScreenForEntity(int entityIndex)
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{
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int i, j;
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if (entityIndex == -1)
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return NULL;
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if (xf86Screens) {
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for (i = 0; i < xf86NumScreens; i++) {
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for (j = 0; j < xf86Screens[i]->numEntities; j++) {
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if (xf86Screens[i]->entityList[j] == entityIndex)
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return xf86Screens[i];
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}
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}
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}
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return NULL;
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}
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void
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xf86RemoveEntityFromScreen(ScrnInfoPtr pScrn, int entityIndex)
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{
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int i;
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for (i = 0; i < pScrn->numEntities; i++) {
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if (pScrn->entityList[i] == entityIndex) {
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for (i++; i < pScrn->numEntities; i++)
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pScrn->entityList[i - 1] = pScrn->entityList[i];
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pScrn->numEntities--;
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xf86Entities[entityIndex]->inUse = FALSE;
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break;
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}
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}
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}
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/*
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* xf86ClearEntityListForScreen() - called when a screen is deleted
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* to mark its entities unused. Called by xf86DeleteScreen().
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*/
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void
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xf86ClearEntityListForScreen(ScrnInfoPtr pScrn)
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{
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int i, entityIndex;
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if (pScrn->entityList == NULL || pScrn->numEntities == 0)
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return;
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for (i = 0; i < pScrn->numEntities; i++) {
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entityIndex = pScrn->entityList[i];
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xf86Entities[entityIndex]->inUse = FALSE;
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/* disable resource: call the disable function */
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}
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free(pScrn->entityList);
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free(pScrn->entityInstanceList);
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pScrn->entityList = NULL;
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pScrn->entityInstanceList = NULL;
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}
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/*
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* Add an extra device section (GDevPtr) to an entity.
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*/
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void
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xf86AddDevToEntity(int entityIndex, GDevPtr dev)
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{
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EntityPtr pEnt;
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if (entityIndex >= xf86NumEntities)
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return;
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pEnt = xf86Entities[entityIndex];
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pEnt->numInstances++;
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pEnt->devices = xnfreallocarray(pEnt->devices,
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pEnt->numInstances, sizeof(GDevPtr));
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pEnt->devices[pEnt->numInstances - 1] = dev;
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dev->claimed = TRUE;
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}
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void
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xf86RemoveDevFromEntity(int entityIndex, GDevPtr dev)
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{
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EntityPtr pEnt;
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int i, j;
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if (entityIndex >= xf86NumEntities)
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return;
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pEnt = xf86Entities[entityIndex];
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for (i = 0; i < pEnt->numInstances; i++) {
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if (pEnt->devices[i] == dev) {
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for (j = i; j < pEnt->numInstances - 1; j++)
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pEnt->devices[j] = pEnt->devices[j + 1];
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break;
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}
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}
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pEnt->numInstances--;
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dev->claimed = FALSE;
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}
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/*
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* xf86GetEntityInfo() -- This function hands information from the
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* EntityRec struct to the drivers. The EntityRec structure itself
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* remains invisible to the driver.
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*/
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EntityInfoPtr
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xf86GetEntityInfo(int entityIndex)
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{
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EntityInfoPtr pEnt;
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int i;
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if (entityIndex == -1)
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return NULL;
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if (entityIndex >= xf86NumEntities)
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return NULL;
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pEnt = xnfcalloc(1, sizeof(EntityInfoRec));
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pEnt->index = entityIndex;
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pEnt->location = xf86Entities[entityIndex]->bus;
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pEnt->active = xf86Entities[entityIndex]->active;
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pEnt->chipset = xf86Entities[entityIndex]->chipset;
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pEnt->driver = xf86Entities[entityIndex]->driver;
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if ((xf86Entities[entityIndex]->devices) &&
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(xf86Entities[entityIndex]->devices[0])) {
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for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++)
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if (xf86Entities[entityIndex]->devices[i]->screen == 0)
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break;
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pEnt->device = xf86Entities[entityIndex]->devices[i];
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}
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else
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pEnt->device = NULL;
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return pEnt;
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}
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int
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xf86GetNumEntityInstances(int entityIndex)
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{
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if (entityIndex >= xf86NumEntities)
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return -1;
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return xf86Entities[entityIndex]->numInstances;
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}
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GDevPtr
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xf86GetDevFromEntity(int entityIndex, int instance)
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{
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int i;
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/* We might not use AddDevtoEntity */
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if ((!xf86Entities[entityIndex]->devices) ||
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(!xf86Entities[entityIndex]->devices[0]))
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return NULL;
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if (entityIndex >= xf86NumEntities ||
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instance >= xf86Entities[entityIndex]->numInstances)
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return NULL;
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for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++)
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if (xf86Entities[entityIndex]->devices[i]->screen == instance)
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break;
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return xf86Entities[entityIndex]->devices[i];
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}
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/*
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* xf86PostProbe() -- Allocate all non conflicting resources
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* This function gets called by xf86Init().
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*/
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void
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xf86PostProbe(void)
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{
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if (fbSlotClaimed && (
|
|
#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__)
|
|
sbusSlotClaimed ||
|
|
#endif
|
|
#ifdef XSERVER_PLATFORM_BUS
|
|
platformSlotClaimed ||
|
|
#endif
|
|
#ifdef XSERVER_LIBPCIACCESS
|
|
pciSlotClaimed
|
|
#else
|
|
TRUE
|
|
#endif
|
|
))
|
|
FatalError("Cannot run in framebuffer mode. Please specify busIDs "
|
|
" for all framebuffer devices\n");
|
|
}
|
|
|
|
Bool
|
|
xf86IsEntityShared(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
if (xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
xf86SetEntityShared(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
xf86Entities[entityIndex]->entityProp |= IS_SHARED_ACCEL;
|
|
}
|
|
}
|
|
|
|
Bool
|
|
xf86IsEntitySharable(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
if (xf86Entities[entityIndex]->entityProp & ACCEL_IS_SHARABLE) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
xf86SetEntitySharable(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
xf86Entities[entityIndex]->entityProp |= ACCEL_IS_SHARABLE;
|
|
}
|
|
}
|
|
|
|
Bool
|
|
xf86IsPrimInitDone(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
if (xf86Entities[entityIndex]->entityProp & SA_PRIM_INIT_DONE) {
|
|
return TRUE;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
void
|
|
xf86SetPrimInitDone(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
xf86Entities[entityIndex]->entityProp |= SA_PRIM_INIT_DONE;
|
|
}
|
|
}
|
|
|
|
void
|
|
xf86ClearPrimInitDone(int entityIndex)
|
|
{
|
|
if (entityIndex < xf86NumEntities) {
|
|
xf86Entities[entityIndex]->entityProp &= ~SA_PRIM_INIT_DONE;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Allocate a private in the entities.
|
|
*/
|
|
|
|
int
|
|
xf86AllocateEntityPrivateIndex(void)
|
|
{
|
|
int idx, i;
|
|
EntityPtr pEnt;
|
|
DevUnion *nprivs;
|
|
|
|
idx = xf86EntityPrivateCount++;
|
|
for (i = 0; i < xf86NumEntities; i++) {
|
|
pEnt = xf86Entities[i];
|
|
nprivs = xnfreallocarray(pEnt->entityPrivates,
|
|
xf86EntityPrivateCount, sizeof(DevUnion));
|
|
/* Zero the new private */
|
|
memset(&nprivs[idx], 0, sizeof(DevUnion));
|
|
pEnt->entityPrivates = nprivs;
|
|
}
|
|
return idx;
|
|
}
|
|
|
|
DevUnion *
|
|
xf86GetEntityPrivate(int entityIndex, int privIndex)
|
|
{
|
|
if (entityIndex >= xf86NumEntities || privIndex >= xf86EntityPrivateCount)
|
|
return NULL;
|
|
|
|
return &(xf86Entities[entityIndex]->entityPrivates[privIndex]);
|
|
}
|