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/*
* Copyright 2003 Red Hat, 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
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86fbman.h"
#include "via.h"
#ifdef OPENCHROMEDRI
#include "xf86drm.h"
#endif
#include "via_driver.h"
#include "via_priv.h"
#include "via_swov.h"
#ifdef OPENCHROMEDRI
#include "via_drm.h"
#endif
/*
* Isolate the wonders of X memory allocation and DRI memory allocation
* and 4.3 or 4.4 differences in one abstraction.
*
* The pool code indicates who provided the memory:
* 0 - nobody
* 1 - xf86 linear
* 2 - DRM
*/
static void
viaExaFBSave(ScreenPtr pScreen, ExaOffscreenArea * exa)
{
FatalError("Xserver is incompatible with openchrome EXA.\n"
"\t\tPlease look at Xorg bugzilla bug #7639, and at\n"
"\t\thttp://wiki.openchrome.org/tikiwiki/tiki-index"
".php?page=EXAAcceleration .\n");
}
void
VIAFreeLinear(VIAMemPtr mem)
{
DEBUG(ErrorF("Freed %lu (pool %d)\n", mem->base, mem->pool));
switch (mem->pool) {
case 0:
return;
case 1:
{
VIAPtr pVia = VIAPTR(mem->pScrn);
if (pVia->useEXA && !pVia->NoAccel) {
exaOffscreenFree(mem->pScrn->pScreen, mem->exa);
#ifdef USE_XAA
mem->linear = NULL;
#endif
mem->pool = 0;
return;
}
}
#ifdef USE_XAA
xf86FreeOffscreenLinear(mem->linear);
mem->linear = NULL;
mem->pool = 0;
#endif
return;
case 2:
#ifdef OPENCHROMEDRI
if (drmCommandWrite(mem->drm_fd, DRM_VIA_FREEMEM,
&mem->drm, sizeof(drm_via_mem_t)) < 0)
ErrorF("DRM module failed free.\n");
#endif
mem->pool = 0;
return;
}
}
int
viaOffScreenLinear(VIAMemPtr mem, ScrnInfoPtr pScrn, unsigned long size)
{
int depth = pScrn->bitsPerPixel >> 3;
VIAPtr pVia = VIAPTR(pScrn);
if (pVia->useEXA && !pVia->NoAccel) {
mem->exa = exaOffscreenAlloc(pScrn->pScreen, size,
32, TRUE, NULL, NULL);
if (mem->exa == NULL)
return BadAlloc;
mem->exa->save = viaExaFBSave;
mem->base = mem->exa->offset;
mem->pool = 1;
mem->pScrn = pScrn;
return Success;
}
#ifdef USE_XAA
mem->linear = xf86AllocateOffscreenLinear(pScrn->pScreen,
(size + depth - 1) / depth,
32, NULL, NULL, NULL);
if (mem->linear == NULL)
return BadAlloc;
mem->base = mem->linear->offset * depth;
mem->pool = 1;
mem->pScrn = pScrn;
#endif
return Success;
}
int
VIAAllocLinear(VIAMemPtr mem, ScrnInfoPtr pScrn, unsigned long size)
{
#ifdef OPENCHROMEDRI
VIAPtr pVia = VIAPTR(pScrn);
int ret;
if (mem->pool)
ErrorF("VIA Double Alloc.\n");
if (pVia->directRenderingEnabled) {
mem->pScrn = pScrn;
mem->drm_fd = pVia->drmFD;
mem->drm.context = DRIGetContext(pScrn->pScreen);
mem->drm.size = size;
mem->drm.type = VIA_MEM_VIDEO;
ret = drmCommandWriteRead(mem->drm_fd, DRM_VIA_ALLOCMEM,
&mem->drm, sizeof(drm_via_mem_t));
if (ret || (size != mem->drm.size)) {
/* Try X Offsceen fallback before failing. */
if (Success == viaOffScreenLinear(mem, pScrn, size))
return Success;
ErrorF("DRM memory allocation failed\n");
return BadAlloc;
}
mem->base = mem->drm.offset;
mem->pool = 2;
DEBUG(ErrorF("Fulfilled via DRI at %lu\n", mem->base));
return Success;
}
#endif
if (Success == viaOffScreenLinear(mem, pScrn, size))
return Success;
ErrorF("Linear memory allocation failed\n");
return BadAlloc;
}
void
VIAInitLinear(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
VIAPtr pVia = VIAPTR(pScrn);
if (pVia->useEXA && !pVia->NoAccel)
return;
else
{
unsigned long offset = (pVia->FBFreeStart + pVia->Bpp - 1) / pVia->Bpp;
long size = pVia->FBFreeEnd / pVia->Bpp - offset;
if (size > 0)
xf86InitFBManagerLinear(pScreen, offset, size);
}
}
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