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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 <sys/types.h>
#include <sys/ioctl.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"
#include "i915_drm.h"
#include "intel_bufmgr.h"
#define FILE_DEBUG_FLAG DEBUG_IOCTL
int
intelEmitIrqLocked(struct intel_context *intel)
{
struct drm_i915_irq_emit ie;
int ret, seq = 1;
if (intel->no_hw)
return 1;
/*
assert(((*(int *)intel->driHwLock) & ~DRM_LOCK_CONT) ==
(DRM_LOCK_HELD|intel->hHWContext));
*/
ie.irq_seq = &seq;
ret = drmCommandWriteRead(intel->driFd, DRM_I915_IRQ_EMIT, &ie, sizeof(ie));
if (ret) {
fprintf(stderr, "%s: drm_i915_irq_emit: %d\n", __FUNCTION__, ret);
exit(1);
}
DBG("%s --> %d\n", __FUNCTION__, seq);
return seq;
}
void
intelWaitIrq(struct intel_context *intel, int seq)
{
struct drm_i915_irq_wait iw;
int ret, lastdispatch;
volatile struct drm_i915_sarea *sarea = intel->sarea;
if (intel->no_hw)
return;
DBG("%s %d\n", __FUNCTION__, seq);
iw.irq_seq = seq;
do {
lastdispatch = sarea->last_dispatch;
ret = drmCommandWrite(intel->driFd, DRM_I915_IRQ_WAIT, &iw, sizeof(iw));
} while (ret == -EAGAIN ||
ret == -EINTR ||
(ret == -EBUSY && lastdispatch != sarea->last_dispatch) ||
(ret == 0 && seq > sarea->last_dispatch) ||
(ret == 0 && sarea->last_dispatch - seq >= (1 << 24)));
if (ret) {
fprintf(stderr, "%s: drm_i915_irq_wait: %d\n", __FUNCTION__, ret);
exit(1);
}
}
int
intel_batch_ioctl(struct intel_context *intel,
GLuint start_offset,
GLuint used,
GLboolean ignore_cliprects, GLboolean allow_unlock)
{
struct drm_i915_batchbuffer batch;
if (intel->no_hw)
return 0;
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 = ((((GLuint) intel->drawX) & 0xffff) |
(((GLuint) intel->drawY) << 16));
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_I915_BATCHBUFFER, &batch,
sizeof(batch))) {
fprintf(stderr, "DRM_I915_BATCHBUFFER: %d\n", -errno);
return -errno;
}
return 0;
}
#ifdef TTM_API
int
intel_exec_ioctl(struct intel_context *intel,
GLuint used,
GLboolean ignore_cliprects, GLboolean allow_unlock,
struct drm_i915_gem_execbuffer *execbuf)
{
int ret;
assert(intel->locked);
assert(used);
if (intel->no_hw)
return 0;
execbuf->batch_start_offset = 0;
execbuf->batch_len = used;
execbuf->cliprects_ptr = (uintptr_t)intel->pClipRects;
execbuf->num_cliprects = ignore_cliprects ? 0 : intel->numClipRects;
execbuf->DR1 = 0;
execbuf->DR4 = ((((GLuint) intel->drawX) & 0xffff) |
(((GLuint) intel->drawY) << 16));
do {
ret = ioctl(intel->driFd, DRM_IOCTL_I915_GEM_EXECBUFFER, execbuf);
} while (ret == -EAGAIN);
if (ret != 0) {
fprintf(stderr, "DRM_I915_GEM_EXECBUFFER: %d\n", -errno);
return -errno;
}
return 0;
}
#else
int
int intel_exec_ioctl(struct intel_context *intel,
GLuint used,
GLboolean ignore_cliprects, GLboolean allow_unlock,
struct drm_i915_gem_execbuffer *execbuf);
{
return -EINVAL;
}
#endif
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