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dri.c
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dri.c
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/**************************************************************************
Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
Copyright 2000 VA Linux Systems, Inc.
All Rights Reserved.
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, sub license, 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 (including the
next paragraph) 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 NON-INFRINGEMENT.
IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS 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.
**************************************************************************/
/*
* Authors:
* Jens Owen <jens@tungstengraphics.com>
* Rickard E. (Rik) Faith <faith@valinux.com>
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86.h"
#include <sys/time.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <sys/ioctl.h>
#include <errno.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#include "xf86drm.h"
#include "misc.h"
#include "dixstruct.h"
#include "extnsionst.h"
#include "extinit.h"
#include "colormapst.h"
#include "cursorstr.h"
#include "scrnintstr.h"
#include "windowstr.h"
#include "servermd.h"
#define _XF86DRI_SERVER_
#include <X11/dri/xf86driproto.h>
#include "swaprep.h"
#include "xf86str.h"
#include "dri.h"
#include "sarea.h"
#include "dristruct.h"
#include "mi.h"
#include "mipointer.h"
#include "xf86_OSproc.h"
#include "inputstr.h"
#include "xf86VGAarbiter.h"
#include "xf86Extensions.h"
static int DRIEntPrivIndex = -1;
static DevPrivateKeyRec DRIScreenPrivKeyRec;
#define DRIScreenPrivKey (&DRIScreenPrivKeyRec)
static DevPrivateKeyRec DRIWindowPrivKeyRec;
#define DRIWindowPrivKey (&DRIWindowPrivKeyRec)
static unsigned long DRIGeneration = 0;
static unsigned int DRIDrawableValidationStamp = 0;
static RESTYPE DRIDrawablePrivResType;
static RESTYPE DRIContextPrivResType;
static void DRIDestroyDummyContext(ScreenPtr pScreen, Bool hasCtxPriv);
drmServerInfo DRIDRMServerInfo;
/* Wrapper just like xf86DrvMsg, but
without the verbosity level checking.
This will make it easy to turn off some
messages later, based on verbosity
level. */
/*
* Since we're already referencing things from the XFree86 common layer in
* this file, we'd might as well just call xf86VDrvMsgVerb, and have
* consistent message formatting. The verbosity of these messages can be
* easily changed here.
*/
#define DRI_MSG_VERBOSITY 1
static void
DRIDrvMsg(int scrnIndex, MessageType type, const char *format, ...)
_X_ATTRIBUTE_PRINTF(3,4);
static void
DRIDrvMsg(int scrnIndex, MessageType type, const char *format, ...)
{
va_list ap;
va_start(ap, format);
xf86VDrvMsgVerb(scrnIndex, type, DRI_MSG_VERBOSITY, format, ap);
va_end(ap);
}
static void
DRIOpenDRMCleanup(DRIEntPrivPtr pDRIEntPriv)
{
if (pDRIEntPriv->pLSAREA != NULL) {
drmUnmap(pDRIEntPriv->pLSAREA, pDRIEntPriv->sAreaSize);
pDRIEntPriv->pLSAREA = NULL;
}
if (pDRIEntPriv->hLSAREA != 0) {
drmRmMap(pDRIEntPriv->drmFD, pDRIEntPriv->hLSAREA);
}
if (pDRIEntPriv->drmFD >= 0) {
drmClose(pDRIEntPriv->drmFD);
pDRIEntPriv->drmFD = 0;
}
}
int
DRIMasterFD(ScrnInfoPtr pScrn)
{
return DRI_ENT_PRIV(pScrn)->drmFD;
}
void *
DRIMasterSareaPointer(ScrnInfoPtr pScrn)
{
return DRI_ENT_PRIV(pScrn)->pLSAREA;
}
drm_handle_t
DRIMasterSareaHandle(ScrnInfoPtr pScrn)
{
return DRI_ENT_PRIV(pScrn)->hLSAREA;
}
Bool
DRIOpenDRMMaster(ScrnInfoPtr pScrn,
unsigned long sAreaSize,
const char *busID, const char *drmDriverName)
{
drmSetVersion saveSv, sv;
Bool drmWasAvailable;
DRIEntPrivPtr pDRIEntPriv;
DRIEntPrivRec tmp;
int count;
int err;
if (DRIEntPrivIndex == -1)
DRIEntPrivIndex = xf86AllocateEntityPrivateIndex();
pDRIEntPriv = DRI_ENT_PRIV(pScrn);
if (pDRIEntPriv && pDRIEntPriv->drmFD != -1)
return TRUE;
drmWasAvailable = drmAvailable();
memset(&tmp, 0, sizeof(tmp));
tmp.drmFD = -1;
sv.drm_di_major = 1;
sv.drm_di_minor = 1;
sv.drm_dd_major = -1;
saveSv = sv;
count = 10;
while (count--) {
tmp.drmFD = drmOpen(drmDriverName, busID);
if (tmp.drmFD < 0) {
DRIDrvMsg(-1, X_ERROR, "[drm] drmOpen failed.\n");
goto out_err;
}
err = drmSetInterfaceVersion(tmp.drmFD, &sv);
if (err != -EPERM)
break;
sv = saveSv;
drmClose(tmp.drmFD);
tmp.drmFD = -1;
usleep(100000);
}
if (tmp.drmFD <= 0) {
DRIDrvMsg(-1, X_ERROR, "[drm] DRM was busy with another master.\n");
goto out_err;
}
if (!drmWasAvailable) {
DRIDrvMsg(-1, X_INFO,
"[drm] loaded kernel module for \"%s\" driver.\n",
drmDriverName);
}
if (err != 0) {
sv.drm_di_major = 1;
sv.drm_di_minor = 0;
}
DRIDrvMsg(-1, X_INFO, "[drm] DRM interface version %d.%d\n",
sv.drm_di_major, sv.drm_di_minor);
if (sv.drm_di_major == 1 && sv.drm_di_minor >= 1)
err = 0;
else
err = drmSetBusid(tmp.drmFD, busID);
if (err) {
DRIDrvMsg(-1, X_ERROR, "[drm] Could not set DRM device bus ID.\n");
goto out_err;
}
/*
* Create a lock-containing sarea.
*/
if (drmAddMap(tmp.drmFD, 0, sAreaSize, DRM_SHM,
DRM_CONTAINS_LOCK, &tmp.hLSAREA) < 0) {
DRIDrvMsg(-1, X_INFO, "[drm] Could not create SAREA for DRM lock.\n");
tmp.hLSAREA = 0;
goto out_err;
}
if (drmMap(tmp.drmFD, tmp.hLSAREA, sAreaSize,
(drmAddressPtr) (&tmp.pLSAREA)) < 0) {
DRIDrvMsg(-1, X_INFO, "[drm] Mapping SAREA for DRM lock failed.\n");
tmp.pLSAREA = NULL;
goto out_err;
}
memset(tmp.pLSAREA, 0, sAreaSize);
/*
* Reserved contexts are handled by the first opened screen.
*/
tmp.resOwner = NULL;
if (!pDRIEntPriv)
pDRIEntPriv = xnfcalloc(sizeof(*pDRIEntPriv), 1);
if (!pDRIEntPriv) {
DRIDrvMsg(-1, X_INFO, "[drm] Failed to allocate memory for "
"DRM device.\n");
goto out_err;
}
*pDRIEntPriv = tmp;
xf86GetEntityPrivate((pScrn)->entityList[0], DRIEntPrivIndex)->ptr =
pDRIEntPriv;
DRIDrvMsg(-1, X_INFO, "[drm] DRM open master succeeded.\n");
return TRUE;
out_err:
DRIOpenDRMCleanup(&tmp);
return FALSE;
}
static void
DRIClipNotifyAllDrawables(ScreenPtr pScreen);
static void
dri_crtc_notify(ScreenPtr pScreen)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
DRIClipNotifyAllDrawables(pScreen);
xf86_unwrap_crtc_notify(pScreen, pDRIPriv->xf86_crtc_notify);
xf86_crtc_notify(pScreen);
pDRIPriv->xf86_crtc_notify =
xf86_wrap_crtc_notify(pScreen, dri_crtc_notify);
}
static void
drmSIGIOHandler(int interrupt, void *closure)
{
unsigned long key;
void *value;
ssize_t count;
drm_ctx_t ctx;
typedef void (*_drmCallback) (int, void *, void *);
char buf[256];
drm_context_t old;
drm_context_t new;
void *oldctx;
void *newctx;
char *pt;
drmHashEntry *entry;
void *hash_table;
hash_table = drmGetHashTable();
if (!hash_table)
return;
if (drmHashFirst(hash_table, &key, &value)) {
entry = value;
do {
if ((count = read(entry->fd, buf, sizeof(buf) - 1)) > 0) {
buf[count] = '\0';
for (pt = buf; *pt != ' '; ++pt); /* Find first space */
++pt;
old = strtol(pt, &pt, 0);
new = strtol(pt, NULL, 0);
oldctx = drmGetContextTag(entry->fd, old);
newctx = drmGetContextTag(entry->fd, new);
((_drmCallback) entry->f) (entry->fd, oldctx, newctx);
ctx.handle = new;
ioctl(entry->fd, DRM_IOCTL_NEW_CTX, &ctx);
}
} while (drmHashNext(hash_table, &key, &value));
}
}
static int
drmInstallSIGIOHandler(int fd, void (*f) (int, void *, void *))
{
drmHashEntry *entry;
entry = drmGetEntry(fd);
entry->f = f;
return xf86InstallSIGIOHandler(fd, drmSIGIOHandler, 0);
}
static int
drmRemoveSIGIOHandler(int fd)
{
drmHashEntry *entry = drmGetEntry(fd);
entry->f = NULL;
return xf86RemoveSIGIOHandler(fd);
}
Bool
DRIScreenInit(ScreenPtr pScreen, DRIInfoPtr pDRIInfo, int *pDRMFD)
{
DRIScreenPrivPtr pDRIPriv;
drm_context_t *reserved;
int reserved_count;
int i;
DRIEntPrivPtr pDRIEntPriv;
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
DRIContextFlags flags = 0;
DRIContextPrivPtr pDRIContextPriv;
static Bool drm_server_inited;
/* If the DRI extension is disabled, do not initialize the DRI */
if (noXFree86DRIExtension) {
DRIDrvMsg(pScreen->myNum, X_WARNING,
"Direct rendering has been disabled.\n");
return FALSE;
}
if (!xf86VGAarbiterAllowDRI(pScreen)) {
DRIDrvMsg(pScreen->myNum, X_WARNING,
"Direct rendering is not supported when VGA arb is necessary for the device\n");
return FALSE;
}
#ifdef PANORAMIX
/*
* If Xinerama is on, don't allow DRI to initialise. It won't be usable
* anyway.
*/
if (!noPanoramiXExtension) {
DRIDrvMsg(pScreen->myNum, X_WARNING,
"Direct rendering is not supported when Xinerama is enabled\n");
return FALSE;
}
#endif
if (drm_server_inited == FALSE) {
drmSetServerInfo(&DRIDRMServerInfo);
drm_server_inited = TRUE;
}
if (!DRIOpenDRMMaster(pScrn, pDRIInfo->SAREASize,
pDRIInfo->busIdString, pDRIInfo->drmDriverName))
return FALSE;
pDRIEntPriv = DRI_ENT_PRIV(pScrn);
if (DRIGeneration != serverGeneration)
DRIGeneration = serverGeneration;
if (!dixRegisterPrivateKey(&DRIScreenPrivKeyRec, PRIVATE_SCREEN, 0))
return FALSE;
if (!dixRegisterPrivateKey(&DRIWindowPrivKeyRec, PRIVATE_WINDOW, 0))
return FALSE;
pDRIPriv = (DRIScreenPrivPtr) calloc(1, sizeof(DRIScreenPrivRec));
if (!pDRIPriv) {
dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
return FALSE;
}
dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, pDRIPriv);
pDRIPriv->drmFD = pDRIEntPriv->drmFD;
pDRIPriv->directRenderingSupport = TRUE;
pDRIPriv->pDriverInfo = pDRIInfo;
pDRIPriv->nrWindows = 0;
pDRIPriv->nrWindowsVisible = 0;
pDRIPriv->fullscreen = NULL;
pDRIPriv->createDummyCtx = pDRIInfo->createDummyCtx;
pDRIPriv->createDummyCtxPriv = pDRIInfo->createDummyCtxPriv;
pDRIPriv->grabbedDRILock = FALSE;
pDRIPriv->drmSIGIOHandlerInstalled = FALSE;
*pDRMFD = pDRIPriv->drmFD;
if (pDRIEntPriv->sAreaGrabbed || pDRIInfo->allocSarea) {
if (drmAddMap(pDRIPriv->drmFD,
0,
pDRIPriv->pDriverInfo->SAREASize,
DRM_SHM, 0, &pDRIPriv->hSAREA) < 0) {
pDRIPriv->directRenderingSupport = FALSE;
dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
drmClose(pDRIPriv->drmFD);
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] drmAddMap failed\n");
return FALSE;
}
DRIDrvMsg(pScreen->myNum, X_INFO,
"[drm] added %d byte SAREA at %p\n",
(int) pDRIPriv->pDriverInfo->SAREASize, (void *) (uintptr_t) pDRIPriv->hSAREA);
/* Backwards compat. */
if (drmMap(pDRIPriv->drmFD,
pDRIPriv->hSAREA,
pDRIPriv->pDriverInfo->SAREASize,
(drmAddressPtr) (&pDRIPriv->pSAREA)) < 0) {
pDRIPriv->directRenderingSupport = FALSE;
dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
drmClose(pDRIPriv->drmFD);
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] drmMap failed\n");
return FALSE;
}
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] mapped SAREA %p to %p\n",
(void *) (uintptr_t) pDRIPriv->hSAREA, pDRIPriv->pSAREA);
memset(pDRIPriv->pSAREA, 0, pDRIPriv->pDriverInfo->SAREASize);
}
else {
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] Using the DRM lock "
"SAREA also for drawables.\n");
pDRIPriv->hSAREA = pDRIEntPriv->hLSAREA;
pDRIPriv->pSAREA = (XF86DRISAREAPtr) pDRIEntPriv->pLSAREA;
pDRIEntPriv->sAreaGrabbed = TRUE;
}
pDRIPriv->hLSAREA = pDRIEntPriv->hLSAREA;
pDRIPriv->pLSAREA = pDRIEntPriv->pLSAREA;
if (!pDRIPriv->pDriverInfo->dontMapFrameBuffer) {
if (drmAddMap(pDRIPriv->drmFD,
(uintptr_t) pDRIPriv->pDriverInfo->
frameBufferPhysicalAddress,
pDRIPriv->pDriverInfo->frameBufferSize, DRM_FRAME_BUFFER,
0, &pDRIPriv->pDriverInfo->hFrameBuffer) < 0) {
pDRIPriv->directRenderingSupport = FALSE;
dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
drmUnmap(pDRIPriv->pSAREA, pDRIPriv->pDriverInfo->SAREASize);
drmClose(pDRIPriv->drmFD);
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] drmAddMap failed\n");
return FALSE;
}
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] framebuffer handle = %p\n",
(void *) (uintptr_t) pDRIPriv->pDriverInfo->hFrameBuffer);
}
else {
DRIDrvMsg(pScreen->myNum, X_INFO,
"[drm] framebuffer mapped by ddx driver\n");
}
if (pDRIEntPriv->resOwner == NULL) {
pDRIEntPriv->resOwner = pScreen;
/* Add tags for reserved contexts */
if ((reserved = drmGetReservedContextList(pDRIPriv->drmFD,
&reserved_count))) {
int r;
void *tag;
for (r = 0; r < reserved_count; r++) {
tag = DRICreateContextPrivFromHandle(pScreen,
reserved[r],
DRI_CONTEXT_RESERVED);
drmAddContextTag(pDRIPriv->drmFD, reserved[r], tag);
}
drmFreeReservedContextList(reserved);
DRIDrvMsg(pScreen->myNum, X_INFO,
"[drm] added %d reserved context%s for kernel\n",
reserved_count, reserved_count > 1 ? "s" : "");
}
}
/* validate max drawable table entry set by driver */
if ((pDRIPriv->pDriverInfo->maxDrawableTableEntry <= 0) ||
(pDRIPriv->pDriverInfo->maxDrawableTableEntry > SAREA_MAX_DRAWABLES)) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"Invalid max drawable table size set by driver: %d\n",
pDRIPriv->pDriverInfo->maxDrawableTableEntry);
}
/* Initialize drawable tables (screen private and SAREA) */
for (i = 0; i < pDRIPriv->pDriverInfo->maxDrawableTableEntry; i++) {
pDRIPriv->DRIDrawables[i] = NULL;
pDRIPriv->pSAREA->drawableTable[i].stamp = 0;
pDRIPriv->pSAREA->drawableTable[i].flags = 0;
}
pDRIPriv->pLockRefCount = &pDRIEntPriv->lockRefCount;
pDRIPriv->pLockingContext = &pDRIEntPriv->lockingContext;
if (!pDRIEntPriv->keepFDOpen)
pDRIEntPriv->keepFDOpen = pDRIInfo->keepFDOpen;
pDRIEntPriv->refCount++;
/* Set up flags for DRICreateContextPriv */
switch (pDRIInfo->driverSwapMethod) {
case DRI_KERNEL_SWAP:
flags = DRI_CONTEXT_2DONLY;
break;
case DRI_HIDE_X_CONTEXT:
flags = DRI_CONTEXT_PRESERVED;
break;
}
if (!(pDRIContextPriv = DRICreateContextPriv(pScreen,
&pDRIPriv->myContext,
flags))) {
DRIDrvMsg(pScreen->myNum, X_ERROR, "failed to create server context\n");
return FALSE;
}
pDRIPriv->myContextPriv = pDRIContextPriv;
DRIDrvMsg(pScreen->myNum, X_INFO,
"X context handle = %p\n", (void *) (uintptr_t) pDRIPriv->myContext);
/* Now that we have created the X server's context, we can grab the
* hardware lock for the X server.
*/
DRILock(pScreen, 0);
pDRIPriv->grabbedDRILock = TRUE;
/* pointers so that we can prevent memory leaks later */
pDRIPriv->hiddenContextStore = NULL;
pDRIPriv->partial3DContextStore = NULL;
switch (pDRIInfo->driverSwapMethod) {
case DRI_HIDE_X_CONTEXT:
/* Server will handle 3D swaps, and hide 2D swaps from kernel.
* Register server context as a preserved context.
*/
/* allocate memory for hidden context store */
pDRIPriv->hiddenContextStore
= (void *) calloc(1, pDRIInfo->contextSize);
if (!pDRIPriv->hiddenContextStore) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"failed to allocate hidden context\n");
DRIDestroyContextPriv(pDRIContextPriv);
return FALSE;
}
/* allocate memory for partial 3D context store */
pDRIPriv->partial3DContextStore
= (void *) calloc(1, pDRIInfo->contextSize);
if (!pDRIPriv->partial3DContextStore) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"[DRI] failed to allocate partial 3D context\n");
free(pDRIPriv->hiddenContextStore);
DRIDestroyContextPriv(pDRIContextPriv);
return FALSE;
}
/* save initial context store */
if (pDRIInfo->SwapContext) {
(*pDRIInfo->SwapContext) (pScreen,
DRI_NO_SYNC,
DRI_2D_CONTEXT,
pDRIPriv->hiddenContextStore,
DRI_NO_CONTEXT, NULL);
}
/* fall through */
case DRI_SERVER_SWAP:
/* For swap methods of DRI_SERVER_SWAP and DRI_HIDE_X_CONTEXT
* setup signal handler for receiving swap requests from kernel
*/
if (!(pDRIPriv->drmSIGIOHandlerInstalled =
drmInstallSIGIOHandler(pDRIPriv->drmFD, DRISwapContext))) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"[drm] failed to setup DRM signal handler\n");
free(pDRIPriv->hiddenContextStore);
free(pDRIPriv->partial3DContextStore);
DRIDestroyContextPriv(pDRIContextPriv);
return FALSE;
}
else {
DRIDrvMsg(pScreen->myNum, X_INFO,
"[drm] installed DRM signal handler\n");
}
default:
break;
}
return TRUE;
}
Bool
DRIFinishScreenInit(ScreenPtr pScreen)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
DRIInfoPtr pDRIInfo = pDRIPriv->pDriverInfo;
/* Wrap DRI support */
if (pDRIInfo->wrap.WindowExposures) {
pDRIPriv->wrap.WindowExposures = pScreen->WindowExposures;
pScreen->WindowExposures = pDRIInfo->wrap.WindowExposures;
}
pDRIPriv->DestroyWindow = pScreen->DestroyWindow;
pScreen->DestroyWindow = DRIDestroyWindow;
pDRIPriv->xf86_crtc_notify = xf86_wrap_crtc_notify(pScreen,
dri_crtc_notify);
if (pDRIInfo->wrap.CopyWindow) {
pDRIPriv->wrap.CopyWindow = pScreen->CopyWindow;
pScreen->CopyWindow = pDRIInfo->wrap.CopyWindow;
}
if (pDRIInfo->wrap.ClipNotify) {
pDRIPriv->wrap.ClipNotify = pScreen->ClipNotify;
pScreen->ClipNotify = pDRIInfo->wrap.ClipNotify;
}
if (pDRIInfo->wrap.AdjustFrame) {
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
pDRIPriv->wrap.AdjustFrame = pScrn->AdjustFrame;
pScrn->AdjustFrame = pDRIInfo->wrap.AdjustFrame;
}
pDRIPriv->wrapped = TRUE;
DRIDrvMsg(pScreen->myNum, X_INFO, "[DRI] installation complete\n");
return TRUE;
}
void
DRICloseScreen(ScreenPtr pScreen)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
DRIInfoPtr pDRIInfo;
drm_context_t *reserved;
int reserved_count;
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
DRIEntPrivPtr pDRIEntPriv = DRI_ENT_PRIV(pScrn);
Bool closeMaster;
if (pDRIPriv) {
pDRIInfo = pDRIPriv->pDriverInfo;
if (pDRIPriv->wrapped) {
/* Unwrap DRI Functions */
if (pDRIInfo->wrap.WindowExposures) {
pScreen->WindowExposures = pDRIPriv->wrap.WindowExposures;
pDRIPriv->wrap.WindowExposures = NULL;
}
if (pDRIPriv->DestroyWindow) {
pScreen->DestroyWindow = pDRIPriv->DestroyWindow;
pDRIPriv->DestroyWindow = NULL;
}
xf86_unwrap_crtc_notify(pScreen, pDRIPriv->xf86_crtc_notify);
if (pDRIInfo->wrap.CopyWindow) {
pScreen->CopyWindow = pDRIPriv->wrap.CopyWindow;
pDRIPriv->wrap.CopyWindow = NULL;
}
if (pDRIInfo->wrap.ClipNotify) {
pScreen->ClipNotify = pDRIPriv->wrap.ClipNotify;
pDRIPriv->wrap.ClipNotify = NULL;
}
if (pDRIInfo->wrap.AdjustFrame) {
ScrnInfoPtr scrn = xf86ScreenToScrn(pScreen);
scrn->AdjustFrame = pDRIPriv->wrap.AdjustFrame;
pDRIPriv->wrap.AdjustFrame = NULL;
}
pDRIPriv->wrapped = FALSE;
}
if (pDRIPriv->drmSIGIOHandlerInstalled) {
if (!drmRemoveSIGIOHandler(pDRIPriv->drmFD)) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"[drm] failed to remove DRM signal handler\n");
}
}
if (pDRIPriv->dummyCtxPriv && pDRIPriv->createDummyCtx) {
DRIDestroyDummyContext(pScreen, pDRIPriv->createDummyCtxPriv);
}
if (!DRIDestroyContextPriv(pDRIPriv->myContextPriv)) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"failed to destroy server context\n");
}
/* Remove tags for reserved contexts */
if (pDRIEntPriv->resOwner == pScreen) {
pDRIEntPriv->resOwner = NULL;
if ((reserved = drmGetReservedContextList(pDRIPriv->drmFD,
&reserved_count))) {
int i;
for (i = 0; i < reserved_count; i++) {
DRIDestroyContextPriv(drmGetContextTag(pDRIPriv->drmFD,
reserved[i]));
}
drmFreeReservedContextList(reserved);
DRIDrvMsg(pScreen->myNum, X_INFO,
"[drm] removed %d reserved context%s for kernel\n",
reserved_count, reserved_count > 1 ? "s" : "");
}
}
/* Make sure signals get unblocked etc. */
drmUnlock(pDRIPriv->drmFD, pDRIPriv->myContext);
pDRIPriv->pLockRefCount = NULL;
closeMaster = (--pDRIEntPriv->refCount == 0) &&
!pDRIEntPriv->keepFDOpen;
if (closeMaster || pDRIPriv->hSAREA != pDRIEntPriv->hLSAREA) {
DRIDrvMsg(pScreen->myNum, X_INFO,
"[drm] unmapping %d bytes of SAREA %p at %p\n",
(int) pDRIInfo->SAREASize, (void *) (uintptr_t) pDRIPriv->hSAREA, pDRIPriv->pSAREA);
if (drmUnmap(pDRIPriv->pSAREA, pDRIInfo->SAREASize)) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"[drm] unable to unmap %d bytes"
" of SAREA %p at %p\n",
(int) pDRIInfo->SAREASize,
(void *) (uintptr_t) pDRIPriv->hSAREA, pDRIPriv->pSAREA);
}
}
else {
pDRIEntPriv->sAreaGrabbed = FALSE;
}
if (closeMaster || (pDRIEntPriv->drmFD != pDRIPriv->drmFD)) {
drmClose(pDRIPriv->drmFD);
if (pDRIEntPriv->drmFD == pDRIPriv->drmFD) {
DRIDrvMsg(pScreen->myNum, X_INFO, "[drm] Closed DRM master.\n");
pDRIEntPriv->drmFD = -1;
}
}
free(pDRIPriv);
dixSetPrivate(&pScreen->devPrivates, DRIScreenPrivKey, NULL);
}
}
#define DRM_MSG_VERBOSITY 3
static int
dri_drm_debug_print(const char *format, va_list ap)
_X_ATTRIBUTE_PRINTF(1,0);
static int
dri_drm_debug_print(const char *format, va_list ap)
{
xf86VDrvMsgVerb(-1, X_NONE, DRM_MSG_VERBOSITY, format, ap);
return 0;
}
static void
dri_drm_get_perms(gid_t * group, mode_t * mode)
{
*group = xf86ConfigDRI.group;
*mode = xf86ConfigDRI.mode;
}
drmServerInfo DRIDRMServerInfo = {
dri_drm_debug_print,
xf86LoadKernelModule,
dri_drm_get_perms,
};
Bool
DRIExtensionInit(void)
{
if (DRIGeneration != serverGeneration) {
return FALSE;
}
DRIDrawablePrivResType = CreateNewResourceType(DRIDrawablePrivDelete,
"DRIDrawable");
DRIContextPrivResType = CreateNewResourceType(DRIContextPrivDelete,
"DRIContext");
if (!DRIDrawablePrivResType || !DRIContextPrivResType)
return FALSE;
RegisterBlockAndWakeupHandlers(DRIBlockHandler, DRIWakeupHandler, NULL);
return TRUE;
}
void
DRIReset(void)
{
/*
* This stub routine is called when the X Server recycles, resources
* allocated by DRIExtensionInit need to be managed here.
*
* Currently this routine is a stub because all the interesting resources
* are managed via the screen init process.
*/
}
Bool
DRIQueryDirectRenderingCapable(ScreenPtr pScreen, Bool *isCapable)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
if (pDRIPriv)
*isCapable = pDRIPriv->directRenderingSupport;
else
*isCapable = FALSE;
return TRUE;
}
Bool
DRIOpenConnection(ScreenPtr pScreen, drm_handle_t * hSAREA, char **busIdString)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
*hSAREA = pDRIPriv->hSAREA;
*busIdString = pDRIPriv->pDriverInfo->busIdString;
return TRUE;
}
Bool
DRIAuthConnection(ScreenPtr pScreen, drm_magic_t magic)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
if (drmAuthMagic(pDRIPriv->drmFD, magic))
return FALSE;
return TRUE;
}
Bool
DRICloseConnection(ScreenPtr pScreen)
{
return TRUE;
}
Bool
DRIGetClientDriverName(ScreenPtr pScreen,
int *ddxDriverMajorVersion,
int *ddxDriverMinorVersion,
int *ddxDriverPatchVersion, char **clientDriverName)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
*ddxDriverMajorVersion = pDRIPriv->pDriverInfo->ddxDriverMajorVersion;
*ddxDriverMinorVersion = pDRIPriv->pDriverInfo->ddxDriverMinorVersion;
*ddxDriverPatchVersion = pDRIPriv->pDriverInfo->ddxDriverPatchVersion;
*clientDriverName = pDRIPriv->pDriverInfo->clientDriverName;
return TRUE;
}
/* DRICreateContextPriv and DRICreateContextPrivFromHandle are helper
functions that layer on drmCreateContext and drmAddContextTag.
DRICreateContextPriv always creates a kernel drm_context_t and then calls
DRICreateContextPrivFromHandle to create a DRIContextPriv structure for
DRI tracking. For the SIGIO handler, the drm_context_t is associated with
DRIContextPrivPtr. Any special flags are stored in the DRIContextPriv
area and are passed to the kernel (if necessary).
DRICreateContextPriv returns a pointer to newly allocated
DRIContextPriv, and returns the kernel drm_context_t in pHWContext. */
DRIContextPrivPtr
DRICreateContextPriv(ScreenPtr pScreen,
drm_context_t * pHWContext, DRIContextFlags flags)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
if (drmCreateContext(pDRIPriv->drmFD, pHWContext)) {
return NULL;
}
return DRICreateContextPrivFromHandle(pScreen, *pHWContext, flags);
}
DRIContextPrivPtr
DRICreateContextPrivFromHandle(ScreenPtr pScreen,
drm_context_t hHWContext, DRIContextFlags flags)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
DRIContextPrivPtr pDRIContextPriv;
int contextPrivSize;
contextPrivSize = sizeof(DRIContextPrivRec) +
pDRIPriv->pDriverInfo->contextSize;
if (!(pDRIContextPriv = calloc(1, contextPrivSize))) {
return NULL;
}
pDRIContextPriv->pContextStore = (void *) (pDRIContextPriv + 1);
drmAddContextTag(pDRIPriv->drmFD, hHWContext, pDRIContextPriv);
pDRIContextPriv->hwContext = hHWContext;
pDRIContextPriv->pScreen = pScreen;
pDRIContextPriv->flags = flags;
pDRIContextPriv->valid3D = FALSE;
if (flags & DRI_CONTEXT_2DONLY) {
if (drmSetContextFlags(pDRIPriv->drmFD, hHWContext, DRM_CONTEXT_2DONLY)) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"[drm] failed to set 2D context flag\n");
DRIDestroyContextPriv(pDRIContextPriv);
return NULL;
}
}
if (flags & DRI_CONTEXT_PRESERVED) {
if (drmSetContextFlags(pDRIPriv->drmFD,
hHWContext, DRM_CONTEXT_PRESERVED)) {
DRIDrvMsg(pScreen->myNum, X_ERROR,
"[drm] failed to set preserved flag\n");
DRIDestroyContextPriv(pDRIContextPriv);
return NULL;
}
}
return pDRIContextPriv;
}
Bool
DRIDestroyContextPriv(DRIContextPrivPtr pDRIContextPriv)
{
DRIScreenPrivPtr pDRIPriv;
if (!pDRIContextPriv)
return TRUE;
pDRIPriv = DRI_SCREEN_PRIV(pDRIContextPriv->pScreen);
if (!(pDRIContextPriv->flags & DRI_CONTEXT_RESERVED)) {
/* Don't delete reserved contexts from
kernel area -- the kernel manages its
reserved contexts itself. */
if (drmDestroyContext(pDRIPriv->drmFD, pDRIContextPriv->hwContext))
return FALSE;
}
/* Remove the tag last to prevent a race
condition where the context has pending
buffers. The context can't be re-used
while in this thread, but buffers can be
dispatched asynchronously. */
drmDelContextTag(pDRIPriv->drmFD, pDRIContextPriv->hwContext);
free(pDRIContextPriv);
return TRUE;
}
static Bool
DRICreateDummyContext(ScreenPtr pScreen, Bool needCtxPriv)
{
DRIScreenPrivPtr pDRIPriv = DRI_SCREEN_PRIV(pScreen);
DRIContextPrivPtr pDRIContextPriv;