From c38dead3ea7e177728d90cd815cf4eead0c9f534 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 15 May 2010 16:28:11 +0000 Subject: xserver git update 15/5/2010 --- xorg-server/hw/xfree86/common/xf86Bus.c | 1366 +++++++++++++++---------------- 1 file changed, 683 insertions(+), 683 deletions(-) (limited to 'xorg-server/hw/xfree86/common/xf86Bus.c') diff --git a/xorg-server/hw/xfree86/common/xf86Bus.c b/xorg-server/hw/xfree86/common/xf86Bus.c index 9d243c172..5c1668644 100644 --- a/xorg-server/hw/xfree86/common/xf86Bus.c +++ b/xorg-server/hw/xfree86/common/xf86Bus.c @@ -1,683 +1,683 @@ -/* - * Copyright (c) 1997-2003 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). - */ - -/* - * This file contains the interfaces to the bus-specific code - */ - -#ifdef HAVE_XORG_CONFIG_H -#include -#endif - -#include -#include -#include -#include -#include "os.h" -#include "xf86.h" -#include "xf86Priv.h" - -/* Bus-specific headers */ - -#include "xf86Bus.h" - -#define XF86_OS_PRIVS -#include "xf86_OSproc.h" -#include "xf86VGAarbiter.h" - -#include "Pci.h" - -/* Entity data */ -EntityPtr *xf86Entities = NULL; /* Bus slots claimed by drivers */ -int xf86NumEntities = 0; -static int xf86EntityPrivateCount = 0; - -BusRec primaryBus = { BUS_NONE, { 0 } }; - -static Bool xf86ResAccessEnter = FALSE; - -static Bool doFramebufferMode = FALSE; - -/* - * Call the bus probes relevant to the architecture. - * - * The only one available so far is for PCI and SBUS. - */ - -void -xf86BusProbe(void) -{ - xf86PciProbe(); -#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__) - xf86SbusProbe(); -#endif -} - -/* - * Determine what bus type the busID string represents. The start of the - * bus-dependent part of the string is returned as retID. - */ - -BusType -StringToBusType(const char* busID, const char **retID) -{ - char *p, *s; - BusType ret = BUS_NONE; - - /* If no type field, Default to PCI */ - if (isdigit(busID[0])) { - if (retID) - *retID = busID; - return BUS_PCI; - } - - s = xstrdup(busID); - p = strtok(s, ":"); - if (p == NULL || *p == 0) { - xfree(s); - return BUS_NONE; - } - if (!xf86NameCmp(p, "pci") || !xf86NameCmp(p, "agp")) - ret = BUS_PCI; - if (!xf86NameCmp(p, "sbus")) - ret = BUS_SBUS; - if (ret != BUS_NONE) - if (retID) - *retID = busID + strlen(p) + 1; - xfree(s); - return ret; -} - -/* - * Entity related code. - */ - -void -xf86EntityInit(void) -{ - int i; - - for (i = 0; i < xf86NumEntities; i++) - if (xf86Entities[i]->entityInit) { - xf86Entities[i]->entityInit(i,xf86Entities[i]->private); - } -} - -int -xf86AllocateEntity(void) -{ - xf86NumEntities++; - xf86Entities = xnfrealloc(xf86Entities, - sizeof(EntityPtr) * xf86NumEntities); - xf86Entities[xf86NumEntities - 1] = xnfcalloc(1,sizeof(EntityRec)); - xf86Entities[xf86NumEntities - 1]->entityPrivates = - xnfcalloc(sizeof(DevUnion) * xf86EntityPrivateCount, 1); - return (xf86NumEntities - 1); -} - -static void -EntityEnter(void) -{ - int i; - - for (i = 0; i < xf86NumEntities; i++) - if (xf86Entities[i]->entityEnter) { - xf86Entities[i]->entityEnter(i,xf86Entities[i]->private); - } -} - -static void -EntityLeave(void) -{ - int i; - - for (i = 0; i < xf86NumEntities; i++) - if (xf86Entities[i]->entityLeave) { - xf86Entities[i]->entityLeave(i,xf86Entities[i]->private); - } -} - -Bool -xf86IsEntityPrimary(int entityIndex) -{ - EntityPtr pEnt = xf86Entities[entityIndex]; - - if (primaryBus.type != pEnt->bus.type) return FALSE; - - switch (pEnt->bus.type) { - case BUS_PCI: - return (pEnt->bus.id.pci == primaryBus.id.pci); - case BUS_SBUS: - return (pEnt->bus.id.sbus.fbNum == primaryBus.id.sbus.fbNum); - default: - return FALSE; - } -} - -Bool -xf86SetEntityFuncs(int entityIndex, EntityProc init, EntityProc enter, - EntityProc leave, pointer private) -{ - if (entityIndex >= xf86NumEntities) - return FALSE; - xf86Entities[entityIndex]->entityInit = init; - xf86Entities[entityIndex]->entityEnter = enter; - xf86Entities[entityIndex]->entityLeave = leave; - xf86Entities[entityIndex]->private = private; - return TRUE; -} - -Bool -xf86DriverHasEntities(DriverPtr drvp) -{ - int i; - for (i = 0; i < xf86NumEntities; i++) { - if (xf86Entities[i]->driver == drvp) - return TRUE; - } - return FALSE; -} - -void -xf86AddEntityToScreen(ScrnInfoPtr pScrn, int entityIndex) -{ - if (entityIndex == -1) - return; - if (xf86Entities[entityIndex]->inUse && - !(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL)) { - ErrorF("Requested Entity already in use!\n"); - return; - } - - pScrn->numEntities++; - pScrn->entityList = xnfrealloc(pScrn->entityList, - pScrn->numEntities * sizeof(int)); - pScrn->entityList[pScrn->numEntities - 1] = entityIndex; - xf86Entities[entityIndex]->inUse = TRUE; - pScrn->entityInstanceList = xnfrealloc(pScrn->entityInstanceList, - pScrn->numEntities * sizeof(int)); - pScrn->entityInstanceList[pScrn->numEntities - 1] = 0; - pScrn->domainIOBase = xf86Entities[entityIndex]->domainIO; -} - -void -xf86SetEntityInstanceForScreen(ScrnInfoPtr pScrn, int entityIndex, int instance) -{ - int i; - - if (entityIndex == -1 || entityIndex >= xf86NumEntities) - return; - - for (i = 0; i < pScrn->numEntities; i++) { - if (pScrn->entityList[i] == entityIndex) { - pScrn->entityInstanceList[i] = instance; - break; - } - } -} - -/* - * XXX This needs to be updated for the case where a single entity may have - * instances associated with more than one screen. - */ -ScrnInfoPtr -xf86FindScreenForEntity(int entityIndex) -{ - int i,j; - - if (entityIndex == -1) return NULL; - - if (xf86Screens) { - for (i = 0; i < xf86NumScreens; i++) { - for (j = 0; j < xf86Screens[i]->numEntities; j++) { - if ( xf86Screens[i]->entityList[j] == entityIndex ) - return (xf86Screens[i]); - } - } - } - return NULL; -} - -void -xf86RemoveEntityFromScreen(ScrnInfoPtr pScrn, int entityIndex) -{ - int i; - - for (i = 0; i < pScrn->numEntities; i++) { - if (pScrn->entityList[i] == entityIndex) { - for (i++; i < pScrn->numEntities; i++) - pScrn->entityList[i-1] = pScrn->entityList[i]; - pScrn->numEntities--; - xf86Entities[entityIndex]->inUse = FALSE; - break; - } - } -} - -/* - * xf86ClearEntitiesForScreen() - called when a screen is deleted - * to mark it's entities unused. Called by xf86DeleteScreen(). - */ -void -xf86ClearEntityListForScreen(int scrnIndex) -{ - ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; - int i, entityIndex; - - if (pScrn->entityList == NULL || pScrn->numEntities == 0) return; - - for (i = 0; i < pScrn->numEntities; i++) { - entityIndex = pScrn->entityList[i]; - xf86Entities[entityIndex]->inUse = FALSE; - /* disable resource: call the disable function */ - } - xfree(pScrn->entityList); - xfree(pScrn->entityInstanceList); - pScrn->entityList = NULL; - pScrn->entityInstanceList = NULL; -} - -/* - * Add an extra device section (GDevPtr) to an entity. - */ - -void -xf86AddDevToEntity(int entityIndex, GDevPtr dev) -{ - EntityPtr pEnt; - - if (entityIndex >= xf86NumEntities) - return; - - pEnt = xf86Entities[entityIndex]; - pEnt->numInstances++; - pEnt->devices = xnfrealloc(pEnt->devices, - pEnt->numInstances * sizeof(GDevPtr)); - pEnt->devices[pEnt->numInstances - 1] = dev; - dev->claimed = TRUE; -} - -/* - * xf86GetEntityInfo() -- This function hands information from the - * EntityRec struct to the drivers. The EntityRec structure itself - * remains invisible to the driver. - */ -EntityInfoPtr -xf86GetEntityInfo(int entityIndex) -{ - EntityInfoPtr pEnt; - int i; - - if (entityIndex == -1) - return NULL; - - if (entityIndex >= xf86NumEntities) - return NULL; - - pEnt = xnfcalloc(1,sizeof(EntityInfoRec)); - pEnt->index = entityIndex; - pEnt->location = xf86Entities[entityIndex]->bus; - pEnt->active = xf86Entities[entityIndex]->active; - pEnt->chipset = xf86Entities[entityIndex]->chipset; - pEnt->driver = xf86Entities[entityIndex]->driver; - if ( (xf86Entities[entityIndex]->devices) && - (xf86Entities[entityIndex]->devices[0]) ) { - for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++) - if (xf86Entities[entityIndex]->devices[i]->screen == 0) - break; - pEnt->device = xf86Entities[entityIndex]->devices[i]; - } else - pEnt->device = NULL; - - return pEnt; -} - -int -xf86GetNumEntityInstances(int entityIndex) -{ - if (entityIndex >= xf86NumEntities) - return -1; - - return xf86Entities[entityIndex]->numInstances; -} - -GDevPtr -xf86GetDevFromEntity(int entityIndex, int instance) -{ - int i; - - /* We might not use AddDevtoEntity */ - if ( (!xf86Entities[entityIndex]->devices) || - (!xf86Entities[entityIndex]->devices[0]) ) - return NULL; - - if (entityIndex >= xf86NumEntities || - instance >= xf86Entities[entityIndex]->numInstances) - return NULL; - - for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++) - if (xf86Entities[entityIndex]->devices[i]->screen == instance) - break; - return xf86Entities[entityIndex]->devices[i]; -} - -/* - * xf86AccessInit() - set up everything needed for access control - * called only once on first server generation. - */ -void -xf86AccessInit(void) -{ - xf86ResAccessEnter = TRUE; -} - -/* - * xf86AccessEnter() -- gets called to save the text mode VGA IO - * resources when reentering the server after a VT switch. - */ -void -xf86AccessEnter(void) -{ - if (xf86ResAccessEnter) - return; - - /* - * on enter we simply disable routing of special resources - * to any bus and let the RAC code to "open" the right bridges. - */ - EntityEnter(); - xf86EnterServerState(SETUP); - xf86ResAccessEnter = TRUE; -} - -/* - * xf86AccessLeave() -- prepares access for and calls the - * entityLeave() functions. - * xf86AccessLeaveState() --- gets called to restore the - * access to the VGA IO resources when switching VT or on - * server exit. - * This was split to call xf86AccessLeaveState() from - * ddxGiveUp(). - */ -void -xf86AccessLeave(void) -{ - if (!xf86ResAccessEnter) - return; - EntityLeave(); -} - -/* - * xf86EnableAccess() -- enable access to controlled resources. - * To reduce latency when switching access the ScrnInfoRec has - * a linked list of the EntityAccPtr of all screen entities. - */ -/* - * switching access needs to be done in te following oder: - * disable - * 1. disable old entity - * 2. reroute bus - * 3. enable new entity - * Otherwise resources needed for access control might be shadowed - * by other resources! - */ - -void -xf86EnableAccess(ScrnInfoPtr pScrn) -{ - DebugF("Enable access %i\n",pScrn->scrnIndex); - - return; -} - -/* - * xf86EnterServerState() -- set state the server is in. - */ - -typedef enum { TRI_UNSET, TRI_TRUE, TRI_FALSE } TriState; - -static void -SetSIGIOForState(xf86State state) -{ - static int sigio_state; - static TriState sigio_blocked = TRI_UNSET; - - if ((state == SETUP) && (sigio_blocked != TRI_TRUE)) { - sigio_state = xf86BlockSIGIO(); - sigio_blocked = TRI_TRUE; - } else if ((state == OPERATING) && (sigio_blocked != TRI_UNSET)) { - xf86UnblockSIGIO(sigio_state); - sigio_blocked = TRI_FALSE; - } -} - -void -xf86EnterServerState(xf86State state) -{ - /* - * This is a good place to block SIGIO during SETUP state. - * SIGIO should be blocked in SETUP state otherwise (u)sleep() - * might get interrupted early. - * We take care not to call xf86BlockSIGIO() twice. - */ - SetSIGIOForState(state); - if (state == SETUP) - DebugF("Entering SETUP state\n"); - else - DebugF("Entering OPERATING state\n"); - - return; -} - -/* - * xf86PostProbe() -- Allocate all non conflicting resources - * This function gets called by xf86Init(). - */ -void -xf86PostProbe(void) -{ - if (fbSlotClaimed) { - if (pciSlotClaimed -#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__) - || sbusSlotClaimed -#endif - ) { - FatalError("Cannot run in framebuffer mode. Please specify busIDs " - " for all framebuffer devices\n"); - return; - } else { - xf86Msg(X_INFO,"Running in FRAMEBUFFER Mode\n"); - doFramebufferMode = TRUE; - - return; - } - } -} - -void -xf86PostScreenInit(void) -{ - if (doFramebufferMode) { - SetSIGIOForState(OPERATING); - return; - } - - xf86VGAarbiterWrapFunctions(); - - DebugF("PostScreenInit generation: %i\n",serverGeneration); - xf86EnterServerState(OPERATING); -} - -/* - * xf86FindPrimaryDevice() - Find the display device which - * was active when the server was started. - */ -void -xf86FindPrimaryDevice(void) -{ - if (primaryBus.type != BUS_NONE) { - char *bus; - char loc[16]; - - switch (primaryBus.type) { - case BUS_PCI: - bus = "PCI"; - snprintf(loc, sizeof(loc), " %2.2x@%2.2x:%2.2x:%1.1x", - primaryBus.id.pci->bus, - primaryBus.id.pci->domain, - primaryBus.id.pci->dev, - primaryBus.id.pci->func); - break; - case BUS_SBUS: - bus = "SBUS"; - snprintf(loc, sizeof(loc), " %2.2x", primaryBus.id.sbus.fbNum); - break; - default: - bus = ""; - loc[0] = '\0'; - } - - xf86MsgVerb(X_INFO, 2, "Primary Device is: %s%s\n",bus,loc); - } -} - -int -xf86GetLastScrnFlag(int entityIndex) -{ - if(entityIndex < xf86NumEntities) { - return(xf86Entities[entityIndex]->lastScrnFlag); - } else { - return -1; - } -} - -void -xf86SetLastScrnFlag(int entityIndex, int scrnIndex) -{ - if(entityIndex < xf86NumEntities) { - xf86Entities[entityIndex]->lastScrnFlag = scrnIndex; - } -} - -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 = xnfrealloc(pEnt->entityPrivates, - xf86EntityPrivateCount * sizeof(DevUnion)); - /* Zero the new private */ - bzero(&nprivs[idx], 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]); -} - +/* + * Copyright (c) 1997-2003 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). + */ + +/* + * This file contains the interfaces to the bus-specific code + */ + +#ifdef HAVE_XORG_CONFIG_H +#include +#endif + +#include +#include +#include +#include +#include "os.h" +#include "xf86.h" +#include "xf86Priv.h" + +/* Bus-specific headers */ + +#include "xf86Bus.h" + +#define XF86_OS_PRIVS +#include "xf86_OSproc.h" +#include "xf86VGAarbiter.h" + +#include "Pci.h" + +/* Entity data */ +EntityPtr *xf86Entities = NULL; /* Bus slots claimed by drivers */ +int xf86NumEntities = 0; +static int xf86EntityPrivateCount = 0; + +BusRec primaryBus = { BUS_NONE, { 0 } }; + +static Bool xf86ResAccessEnter = FALSE; + +static Bool doFramebufferMode = FALSE; + +/* + * Call the bus probes relevant to the architecture. + * + * The only one available so far is for PCI and SBUS. + */ + +void +xf86BusProbe(void) +{ + xf86PciProbe(); +#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__) + xf86SbusProbe(); +#endif +} + +/* + * Determine what bus type the busID string represents. The start of the + * bus-dependent part of the string is returned as retID. + */ + +BusType +StringToBusType(const char* busID, const char **retID) +{ + char *p, *s; + BusType ret = BUS_NONE; + + /* If no type field, Default to PCI */ + if (isdigit(busID[0])) { + if (retID) + *retID = busID; + return BUS_PCI; + } + + s = xstrdup(busID); + p = strtok(s, ":"); + if (p == NULL || *p == 0) { + free(s); + return BUS_NONE; + } + if (!xf86NameCmp(p, "pci") || !xf86NameCmp(p, "agp")) + ret = BUS_PCI; + if (!xf86NameCmp(p, "sbus")) + ret = BUS_SBUS; + if (ret != BUS_NONE) + if (retID) + *retID = busID + strlen(p) + 1; + free(s); + return ret; +} + +/* + * Entity related code. + */ + +void +xf86EntityInit(void) +{ + int i; + + for (i = 0; i < xf86NumEntities; i++) + if (xf86Entities[i]->entityInit) { + xf86Entities[i]->entityInit(i,xf86Entities[i]->private); + } +} + +int +xf86AllocateEntity(void) +{ + xf86NumEntities++; + xf86Entities = xnfrealloc(xf86Entities, + sizeof(EntityPtr) * xf86NumEntities); + xf86Entities[xf86NumEntities - 1] = xnfcalloc(1,sizeof(EntityRec)); + xf86Entities[xf86NumEntities - 1]->entityPrivates = + xnfcalloc(sizeof(DevUnion) * xf86EntityPrivateCount, 1); + return (xf86NumEntities - 1); +} + +static void +EntityEnter(void) +{ + int i; + + for (i = 0; i < xf86NumEntities; i++) + if (xf86Entities[i]->entityEnter) { + xf86Entities[i]->entityEnter(i,xf86Entities[i]->private); + } +} + +static void +EntityLeave(void) +{ + int i; + + for (i = 0; i < xf86NumEntities; i++) + if (xf86Entities[i]->entityLeave) { + xf86Entities[i]->entityLeave(i,xf86Entities[i]->private); + } +} + +Bool +xf86IsEntityPrimary(int entityIndex) +{ + EntityPtr pEnt = xf86Entities[entityIndex]; + + if (primaryBus.type != pEnt->bus.type) return FALSE; + + switch (pEnt->bus.type) { + case BUS_PCI: + return (pEnt->bus.id.pci == primaryBus.id.pci); + case BUS_SBUS: + return (pEnt->bus.id.sbus.fbNum == primaryBus.id.sbus.fbNum); + default: + return FALSE; + } +} + +Bool +xf86SetEntityFuncs(int entityIndex, EntityProc init, EntityProc enter, + EntityProc leave, pointer private) +{ + if (entityIndex >= xf86NumEntities) + return FALSE; + xf86Entities[entityIndex]->entityInit = init; + xf86Entities[entityIndex]->entityEnter = enter; + xf86Entities[entityIndex]->entityLeave = leave; + xf86Entities[entityIndex]->private = private; + return TRUE; +} + +Bool +xf86DriverHasEntities(DriverPtr drvp) +{ + int i; + for (i = 0; i < xf86NumEntities; i++) { + if (xf86Entities[i]->driver == drvp) + return TRUE; + } + return FALSE; +} + +void +xf86AddEntityToScreen(ScrnInfoPtr pScrn, int entityIndex) +{ + if (entityIndex == -1) + return; + if (xf86Entities[entityIndex]->inUse && + !(xf86Entities[entityIndex]->entityProp & IS_SHARED_ACCEL)) { + ErrorF("Requested Entity already in use!\n"); + return; + } + + pScrn->numEntities++; + pScrn->entityList = xnfrealloc(pScrn->entityList, + pScrn->numEntities * sizeof(int)); + pScrn->entityList[pScrn->numEntities - 1] = entityIndex; + xf86Entities[entityIndex]->inUse = TRUE; + pScrn->entityInstanceList = xnfrealloc(pScrn->entityInstanceList, + pScrn->numEntities * sizeof(int)); + pScrn->entityInstanceList[pScrn->numEntities - 1] = 0; + pScrn->domainIOBase = xf86Entities[entityIndex]->domainIO; +} + +void +xf86SetEntityInstanceForScreen(ScrnInfoPtr pScrn, int entityIndex, int instance) +{ + int i; + + if (entityIndex == -1 || entityIndex >= xf86NumEntities) + return; + + for (i = 0; i < pScrn->numEntities; i++) { + if (pScrn->entityList[i] == entityIndex) { + pScrn->entityInstanceList[i] = instance; + break; + } + } +} + +/* + * XXX This needs to be updated for the case where a single entity may have + * instances associated with more than one screen. + */ +ScrnInfoPtr +xf86FindScreenForEntity(int entityIndex) +{ + int i,j; + + if (entityIndex == -1) return NULL; + + if (xf86Screens) { + for (i = 0; i < xf86NumScreens; i++) { + for (j = 0; j < xf86Screens[i]->numEntities; j++) { + if ( xf86Screens[i]->entityList[j] == entityIndex ) + return (xf86Screens[i]); + } + } + } + return NULL; +} + +void +xf86RemoveEntityFromScreen(ScrnInfoPtr pScrn, int entityIndex) +{ + int i; + + for (i = 0; i < pScrn->numEntities; i++) { + if (pScrn->entityList[i] == entityIndex) { + for (i++; i < pScrn->numEntities; i++) + pScrn->entityList[i-1] = pScrn->entityList[i]; + pScrn->numEntities--; + xf86Entities[entityIndex]->inUse = FALSE; + break; + } + } +} + +/* + * xf86ClearEntitiesForScreen() - called when a screen is deleted + * to mark it's entities unused. Called by xf86DeleteScreen(). + */ +void +xf86ClearEntityListForScreen(int scrnIndex) +{ + ScrnInfoPtr pScrn = xf86Screens[scrnIndex]; + int i, entityIndex; + + if (pScrn->entityList == NULL || pScrn->numEntities == 0) return; + + for (i = 0; i < pScrn->numEntities; i++) { + entityIndex = pScrn->entityList[i]; + xf86Entities[entityIndex]->inUse = FALSE; + /* disable resource: call the disable function */ + } + free(pScrn->entityList); + free(pScrn->entityInstanceList); + pScrn->entityList = NULL; + pScrn->entityInstanceList = NULL; +} + +/* + * Add an extra device section (GDevPtr) to an entity. + */ + +void +xf86AddDevToEntity(int entityIndex, GDevPtr dev) +{ + EntityPtr pEnt; + + if (entityIndex >= xf86NumEntities) + return; + + pEnt = xf86Entities[entityIndex]; + pEnt->numInstances++; + pEnt->devices = xnfrealloc(pEnt->devices, + pEnt->numInstances * sizeof(GDevPtr)); + pEnt->devices[pEnt->numInstances - 1] = dev; + dev->claimed = TRUE; +} + +/* + * xf86GetEntityInfo() -- This function hands information from the + * EntityRec struct to the drivers. The EntityRec structure itself + * remains invisible to the driver. + */ +EntityInfoPtr +xf86GetEntityInfo(int entityIndex) +{ + EntityInfoPtr pEnt; + int i; + + if (entityIndex == -1) + return NULL; + + if (entityIndex >= xf86NumEntities) + return NULL; + + pEnt = xnfcalloc(1,sizeof(EntityInfoRec)); + pEnt->index = entityIndex; + pEnt->location = xf86Entities[entityIndex]->bus; + pEnt->active = xf86Entities[entityIndex]->active; + pEnt->chipset = xf86Entities[entityIndex]->chipset; + pEnt->driver = xf86Entities[entityIndex]->driver; + if ( (xf86Entities[entityIndex]->devices) && + (xf86Entities[entityIndex]->devices[0]) ) { + for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++) + if (xf86Entities[entityIndex]->devices[i]->screen == 0) + break; + pEnt->device = xf86Entities[entityIndex]->devices[i]; + } else + pEnt->device = NULL; + + return pEnt; +} + +int +xf86GetNumEntityInstances(int entityIndex) +{ + if (entityIndex >= xf86NumEntities) + return -1; + + return xf86Entities[entityIndex]->numInstances; +} + +GDevPtr +xf86GetDevFromEntity(int entityIndex, int instance) +{ + int i; + + /* We might not use AddDevtoEntity */ + if ( (!xf86Entities[entityIndex]->devices) || + (!xf86Entities[entityIndex]->devices[0]) ) + return NULL; + + if (entityIndex >= xf86NumEntities || + instance >= xf86Entities[entityIndex]->numInstances) + return NULL; + + for (i = 0; i < xf86Entities[entityIndex]->numInstances; i++) + if (xf86Entities[entityIndex]->devices[i]->screen == instance) + break; + return xf86Entities[entityIndex]->devices[i]; +} + +/* + * xf86AccessInit() - set up everything needed for access control + * called only once on first server generation. + */ +void +xf86AccessInit(void) +{ + xf86ResAccessEnter = TRUE; +} + +/* + * xf86AccessEnter() -- gets called to save the text mode VGA IO + * resources when reentering the server after a VT switch. + */ +void +xf86AccessEnter(void) +{ + if (xf86ResAccessEnter) + return; + + /* + * on enter we simply disable routing of special resources + * to any bus and let the RAC code to "open" the right bridges. + */ + EntityEnter(); + xf86EnterServerState(SETUP); + xf86ResAccessEnter = TRUE; +} + +/* + * xf86AccessLeave() -- prepares access for and calls the + * entityLeave() functions. + * xf86AccessLeaveState() --- gets called to restore the + * access to the VGA IO resources when switching VT or on + * server exit. + * This was split to call xf86AccessLeaveState() from + * ddxGiveUp(). + */ +void +xf86AccessLeave(void) +{ + if (!xf86ResAccessEnter) + return; + EntityLeave(); +} + +/* + * xf86EnableAccess() -- enable access to controlled resources. + * To reduce latency when switching access the ScrnInfoRec has + * a linked list of the EntityAccPtr of all screen entities. + */ +/* + * switching access needs to be done in te following oder: + * disable + * 1. disable old entity + * 2. reroute bus + * 3. enable new entity + * Otherwise resources needed for access control might be shadowed + * by other resources! + */ + +void +xf86EnableAccess(ScrnInfoPtr pScrn) +{ + DebugF("Enable access %i\n",pScrn->scrnIndex); + + return; +} + +/* + * xf86EnterServerState() -- set state the server is in. + */ + +typedef enum { TRI_UNSET, TRI_TRUE, TRI_FALSE } TriState; + +static void +SetSIGIOForState(xf86State state) +{ + static int sigio_state; + static TriState sigio_blocked = TRI_UNSET; + + if ((state == SETUP) && (sigio_blocked != TRI_TRUE)) { + sigio_state = xf86BlockSIGIO(); + sigio_blocked = TRI_TRUE; + } else if ((state == OPERATING) && (sigio_blocked != TRI_UNSET)) { + xf86UnblockSIGIO(sigio_state); + sigio_blocked = TRI_FALSE; + } +} + +void +xf86EnterServerState(xf86State state) +{ + /* + * This is a good place to block SIGIO during SETUP state. + * SIGIO should be blocked in SETUP state otherwise (u)sleep() + * might get interrupted early. + * We take care not to call xf86BlockSIGIO() twice. + */ + SetSIGIOForState(state); + if (state == SETUP) + DebugF("Entering SETUP state\n"); + else + DebugF("Entering OPERATING state\n"); + + return; +} + +/* + * xf86PostProbe() -- Allocate all non conflicting resources + * This function gets called by xf86Init(). + */ +void +xf86PostProbe(void) +{ + if (fbSlotClaimed) { + if (pciSlotClaimed +#if (defined(__sparc__) || defined(__sparc)) && !defined(__OpenBSD__) + || sbusSlotClaimed +#endif + ) { + FatalError("Cannot run in framebuffer mode. Please specify busIDs " + " for all framebuffer devices\n"); + return; + } else { + xf86Msg(X_INFO,"Running in FRAMEBUFFER Mode\n"); + doFramebufferMode = TRUE; + + return; + } + } +} + +void +xf86PostScreenInit(void) +{ + if (doFramebufferMode) { + SetSIGIOForState(OPERATING); + return; + } + + xf86VGAarbiterWrapFunctions(); + + DebugF("PostScreenInit generation: %i\n",serverGeneration); + xf86EnterServerState(OPERATING); +} + +/* + * xf86FindPrimaryDevice() - Find the display device which + * was active when the server was started. + */ +void +xf86FindPrimaryDevice(void) +{ + if (primaryBus.type != BUS_NONE) { + char *bus; + char loc[16]; + + switch (primaryBus.type) { + case BUS_PCI: + bus = "PCI"; + snprintf(loc, sizeof(loc), " %2.2x@%2.2x:%2.2x:%1.1x", + primaryBus.id.pci->bus, + primaryBus.id.pci->domain, + primaryBus.id.pci->dev, + primaryBus.id.pci->func); + break; + case BUS_SBUS: + bus = "SBUS"; + snprintf(loc, sizeof(loc), " %2.2x", primaryBus.id.sbus.fbNum); + break; + default: + bus = ""; + loc[0] = '\0'; + } + + xf86MsgVerb(X_INFO, 2, "Primary Device is: %s%s\n",bus,loc); + } +} + +int +xf86GetLastScrnFlag(int entityIndex) +{ + if(entityIndex < xf86NumEntities) { + return(xf86Entities[entityIndex]->lastScrnFlag); + } else { + return -1; + } +} + +void +xf86SetLastScrnFlag(int entityIndex, int scrnIndex) +{ + if(entityIndex < xf86NumEntities) { + xf86Entities[entityIndex]->lastScrnFlag = scrnIndex; + } +} + +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 = xnfrealloc(pEnt->entityPrivates, + xf86EntityPrivateCount * sizeof(DevUnion)); + /* Zero the new private */ + bzero(&nprivs[idx], 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]); +} + -- cgit v1.2.3