136 lines
3.8 KiB
C
136 lines
3.8 KiB
C
/**************************************************************************
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*
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* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#include <stdio.h>
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#include <unistd.h>
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#include <errno.h>
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#include <sched.h>
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#include "mtypes.h"
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#include "context.h"
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#include "swrast/swrast.h"
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#include "intel_context.h"
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#include "intel_ioctl.h"
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#include "intel_batchbuffer.h"
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#include "intel_blit.h"
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#include "intel_regions.h"
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#include "drm.h"
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#define FILE_DEBUG_FLAG DEBUG_IOCTL
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int
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intelEmitIrqLocked(intelScreenPrivate *intelScreen)
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{
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drmI830IrqEmit ie;
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int ret, seq;
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ie.irq_seq = &seq;
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ret = drmCommandWriteRead(intelScreen->driScrnPriv->fd,
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DRM_I830_IRQ_EMIT, &ie, sizeof(ie));
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if (ret) {
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fprintf(stderr, "%s: drmI830IrqEmit: %d\n", __FUNCTION__, ret);
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exit(1);
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}
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DBG("%s --> %d\n", __FUNCTION__, seq);
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return seq;
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}
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void
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intelWaitIrq(intelScreenPrivate *intelScreen, int seq)
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{
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drm_i915_irq_wait_t iw;
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int ret;
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DBG("%s %d\n", __FUNCTION__, seq);
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iw.irq_seq = seq;
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do {
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ret = drmCommandWrite(intelScreen->driScrnPriv->fd,
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DRM_I830_IRQ_WAIT, &iw, sizeof(iw));
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} while (ret == -EAGAIN || ret == -EINTR);
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if (ret) {
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fprintf(stderr, "%s: drmI830IrqWait: %d\n", __FUNCTION__, ret);
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exit(1);
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}
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}
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void
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intel_batch_ioctl(struct intel_context *intel,
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GLuint start_offset,
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GLuint used,
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GLboolean ignore_cliprects, GLboolean allow_unlock)
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{
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drmI830BatchBuffer batch;
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assert(intel->locked);
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assert(used);
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DBG("%s used %d offset %x..%x ignore_cliprects %d\n",
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__FUNCTION__,
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used, start_offset, start_offset + used, ignore_cliprects);
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/* Throw away non-effective packets. Won't work once we have
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* hardware contexts which would preserve statechanges beyond a
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* single buffer.
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*/
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batch.start = start_offset;
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batch.used = used;
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batch.cliprects = intel->pClipRects;
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batch.num_cliprects = ignore_cliprects ? 0 : intel->numClipRects;
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batch.DR1 = 0;
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batch.DR4 = ((((GLuint) intel->drawX) & 0xffff) |
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(((GLuint) intel->drawY) << 16));
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DBG("%s: 0x%x..0x%x DR4: %x cliprects: %d\n",
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__FUNCTION__,
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batch.start,
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batch.start + batch.used * 4, batch.DR4, batch.num_cliprects);
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if (drmCommandWrite(intel->driFd, DRM_I830_BATCHBUFFER, &batch,
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sizeof(batch))) {
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fprintf(stderr, "DRM_I830_BATCHBUFFER: %d\n", -errno);
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UNLOCK_HARDWARE(intel);
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exit(1);
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}
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/* FIXME: use hardware contexts to avoid 'losing' hardware after
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* each buffer flush.
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*/
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intel->vtbl.lost_hardware(intel);
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}
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