| /************************************************************************** |
| * |
| * 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(intelScreenPrivate *intelScreen) |
| { |
| drmI830IrqEmit ie; |
| int ret, seq; |
| |
| ie.irq_seq = &seq; |
| |
| ret = drmCommandWriteRead(intelScreen->driScrnPriv->fd, |
| 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(intelScreenPrivate *intelScreen, int seq) |
| { |
| drm_i915_irq_wait_t iw; |
| int ret; |
| |
| DBG("%s %d\n", __FUNCTION__, seq); |
| |
| iw.irq_seq = seq; |
| |
| do { |
| ret = drmCommandWrite(intelScreen->driScrnPriv->fd, |
| DRM_I830_IRQ_WAIT, &iw, sizeof(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 = ((((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_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); |
| } |