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/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* 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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <sched.h>
#include "mtypes.h"
#include "context.h"
#include "swrast/swrast.h"
#include "intel_context.h"
#include "intel_ioctl.h"
#include "intel_batchbuffer.h"
#include "intel_blit.h"
#include "intel_regions.h"
#include "drm.h"
#define FILE_DEBUG_FLAG DEBUG_IOCTL
int
intelEmitIrqLocked(struct intel_context *intel)
{
drmI830IrqEmit ie;
int ret, seq;
assert(((*(int *) intel->driHwLock) & ~DRM_LOCK_CONT) ==
(DRM_LOCK_HELD | intel->hHWContext));
ie.irq_seq = &seq;
ret = drmCommandWriteRead(intel->driFd, DRM_I830_IRQ_EMIT,
&ie, sizeof(ie));
if (ret) {
fprintf(stderr, "%s: drmI830IrqEmit: %d\n", __FUNCTION__, ret);
exit(1);
}
DBG("%s --> %d\n", __FUNCTION__, seq);
return seq;
}
void
intelWaitIrq(struct intel_context *intel, int seq)
{
int ret;
DBG("%s %d\n", __FUNCTION__, seq);
intel->iw.irq_seq = seq;
do {
ret =
drmCommandWrite(intel->driFd, DRM_I830_IRQ_WAIT, &intel->iw,
sizeof(intel->iw));
} while (ret == -EAGAIN || ret == -EINTR);
if (ret) {
fprintf(stderr, "%s: drmI830IrqWait: %d\n", __FUNCTION__, ret);
exit(1);
}
}
void
intel_batch_ioctl(struct intel_context *intel,
GLuint start_offset,
GLuint used,
GLboolean ignore_cliprects, GLboolean allow_unlock)
{
drmI830BatchBuffer batch;
assert(intel->locked);
assert(used);
DBG("%s used %d offset %x..%x ignore_cliprects %d\n",
__FUNCTION__,
used, start_offset, start_offset + used, ignore_cliprects);
/* Throw away non-effective packets. Won't work once we have
* hardware contexts which would preserve statechanges beyond a
* single buffer.
*/
batch.start = start_offset;
batch.used = used;
batch.cliprects = intel->pClipRects;
batch.num_cliprects = ignore_cliprects ? 0 : intel->numClipRects;
batch.DR1 = 0;
batch.DR4 = 0; /* still need this ? */
DBG("%s: 0x%x..0x%x DR4: %x cliprects: %d\n",
__FUNCTION__,
batch.start,
batch.start + batch.used * 4, batch.DR4, batch.num_cliprects);
if (drmCommandWrite(intel->driFd, DRM_I830_BATCHBUFFER, &batch,
sizeof(batch))) {
fprintf(stderr, "DRM_I830_BATCHBUFFER: %d\n", -errno);
UNLOCK_HARDWARE(intel);
exit(1);
}
/* FIXME: use hardware contexts to avoid 'losing' hardware after
* each buffer flush.
*/
intel->vtbl.lost_hardware(intel);
}
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