1 /* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
4 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 * $FreeBSD: src/sys/dev/drm2/i915/i915_dma.c,v 1.1 2012/05/22 11:07:44 kib Exp $
31 #include <drm/i915_drm.h>
33 #include "intel_drv.h"
34 #include "intel_ringbuffer.h"
35 #include <linux/workqueue.h>
37 extern struct drm_i915_private *i915_mch_dev;
39 void i915_update_dri1_breadcrumb(struct drm_device *dev)
42 * The dri breadcrumb update races against the drm master disappearing.
43 * Instead of trying to fix this (this is by far not the only ums issue)
44 * just don't do the update in kms mode.
46 if (drm_core_check_feature(dev, DRIVER_MODESET))
49 /* XXX: don't do it at all actually */
53 static void i915_write_hws_pga(struct drm_device *dev)
55 drm_i915_private_t *dev_priv = dev->dev_private;
58 addr = dev_priv->status_page_dmah->busaddr;
59 if (INTEL_INFO(dev)->gen >= 4)
60 addr |= (dev_priv->status_page_dmah->busaddr >> 28) & 0xf0;
61 I915_WRITE(HWS_PGA, addr);
65 * Sets up the hardware status page for devices that need a physical address
68 static int i915_init_phys_hws(struct drm_device *dev)
70 drm_i915_private_t *dev_priv = dev->dev_private;
71 struct intel_ring_buffer *ring = LP_RING(dev_priv);
74 * Program Hardware Status Page
75 * XXXKIB Keep 4GB limit for allocation for now. This method
76 * of allocation is used on <= 965 hardware, that has several
77 * erratas regarding the use of physical memory > 4 GB.
80 dev_priv->status_page_dmah =
81 drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);
83 if (!dev_priv->status_page_dmah) {
84 DRM_ERROR("Can not allocate hardware status page\n");
87 ring->status_page.page_addr = dev_priv->hw_status_page =
88 dev_priv->status_page_dmah->vaddr;
89 dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
91 memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
93 i915_write_hws_pga(dev);
94 DRM_DEBUG("Enabled hardware status page, phys %jx\n",
95 (uintmax_t)dev_priv->dma_status_page);
100 * Frees the hardware status page, whether it's a physical address or a virtual
101 * address set up by the X Server.
103 static void i915_free_hws(struct drm_device *dev)
105 drm_i915_private_t *dev_priv = dev->dev_private;
106 struct intel_ring_buffer *ring = LP_RING(dev_priv);
108 if (dev_priv->status_page_dmah) {
109 drm_pci_free(dev, dev_priv->status_page_dmah);
110 dev_priv->status_page_dmah = NULL;
113 if (dev_priv->status_gfx_addr) {
114 dev_priv->status_gfx_addr = 0;
115 ring->status_page.gfx_addr = 0;
116 drm_core_ioremapfree(&dev_priv->hws_map, dev);
119 /* Need to rewrite hardware status page */
120 I915_WRITE(HWS_PGA, 0x1ffff000);
123 void i915_kernel_lost_context(struct drm_device * dev)
125 drm_i915_private_t *dev_priv = dev->dev_private;
126 struct intel_ring_buffer *ring = LP_RING(dev_priv);
129 * We should never lose context on the ring with modesetting
130 * as we don't expose it to userspace
132 if (drm_core_check_feature(dev, DRIVER_MODESET))
135 ring->head = I915_READ_HEAD(ring) & HEAD_ADDR;
136 ring->tail = I915_READ_TAIL(ring) & TAIL_ADDR;
137 ring->space = ring->head - (ring->tail + 8);
139 ring->space += ring->size;
144 if (!dev->primary->master)
148 if (ring->head == ring->tail && dev_priv->sarea_priv)
149 dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
152 static int i915_dma_cleanup(struct drm_device * dev)
154 drm_i915_private_t *dev_priv = dev->dev_private;
158 /* Make sure interrupts are disabled here because the uninstall ioctl
159 * may not have been called from userspace and after dev_private
160 * is freed, it's too late.
162 if (dev->irq_enabled)
163 drm_irq_uninstall(dev);
165 for (i = 0; i < I915_NUM_RINGS; i++)
166 intel_cleanup_ring_buffer(&dev_priv->ring[i]);
168 /* Clear the HWS virtual address at teardown */
169 if (I915_NEED_GFX_HWS(dev))
175 static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
177 drm_i915_private_t *dev_priv = dev->dev_private;
180 dev_priv->sarea = drm_getsarea(dev);
181 if (!dev_priv->sarea) {
182 DRM_ERROR("can not find sarea!\n");
183 i915_dma_cleanup(dev);
187 dev_priv->sarea_priv = (drm_i915_sarea_t *)
188 ((u8 *) dev_priv->sarea->virtual + init->sarea_priv_offset);
190 if (init->ring_size != 0) {
191 if (LP_RING(dev_priv)->obj != NULL) {
192 i915_dma_cleanup(dev);
193 DRM_ERROR("Client tried to initialize ringbuffer in "
198 ret = intel_render_ring_init_dri(dev,
202 i915_dma_cleanup(dev);
207 dev_priv->cpp = init->cpp;
208 dev_priv->back_offset = init->back_offset;
209 dev_priv->front_offset = init->front_offset;
210 dev_priv->current_page = 0;
211 dev_priv->sarea_priv->pf_current_page = 0;
213 /* Allow hardware batchbuffers unless told otherwise.
215 dev_priv->allow_batchbuffer = 1;
220 static int i915_dma_resume(struct drm_device * dev)
222 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
223 struct intel_ring_buffer *ring = LP_RING(dev_priv);
227 if (ring->virtual_start == NULL) {
228 DRM_ERROR("can not ioremap virtual address for"
233 /* Program Hardware Status Page */
234 if (!ring->status_page.page_addr) {
235 DRM_ERROR("Can not find hardware status page\n");
238 DRM_DEBUG("hw status page @ %p\n", ring->status_page.page_addr);
239 if (ring->status_page.gfx_addr != 0)
240 intel_ring_setup_status_page(ring);
242 i915_write_hws_pga(dev);
244 DRM_DEBUG("Enabled hardware status page\n");
249 static int i915_dma_init(struct drm_device *dev, void *data,
250 struct drm_file *file_priv)
252 drm_i915_init_t *init = data;
255 switch (init->func) {
257 retcode = i915_initialize(dev, init);
259 case I915_CLEANUP_DMA:
260 retcode = i915_dma_cleanup(dev);
262 case I915_RESUME_DMA:
263 retcode = i915_dma_resume(dev);
273 /* Implement basically the same security restrictions as hardware does
274 * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
276 * Most of the calculations below involve calculating the size of a
277 * particular instruction. It's important to get the size right as
278 * that tells us where the next instruction to check is. Any illegal
279 * instruction detected will be given a size of zero, which is a
280 * signal to abort the rest of the buffer.
282 static int do_validate_cmd(int cmd)
284 switch (((cmd >> 29) & 0x7)) {
286 switch ((cmd >> 23) & 0x3f) {
288 return 1; /* MI_NOOP */
290 return 1; /* MI_FLUSH */
292 return 0; /* disallow everything else */
296 return 0; /* reserved */
298 return (cmd & 0xff) + 2; /* 2d commands */
300 if (((cmd >> 24) & 0x1f) <= 0x18)
303 switch ((cmd >> 24) & 0x1f) {
307 switch ((cmd >> 16) & 0xff) {
309 return (cmd & 0x1f) + 2;
311 return (cmd & 0xf) + 2;
313 return (cmd & 0xffff) + 2;
317 return (cmd & 0xffff) + 1;
321 if ((cmd & (1 << 23)) == 0) /* inline vertices */
322 return (cmd & 0x1ffff) + 2;
323 else if (cmd & (1 << 17)) /* indirect random */
324 if ((cmd & 0xffff) == 0)
325 return 0; /* unknown length, too hard */
327 return (((cmd & 0xffff) + 1) / 2) + 1;
329 return 2; /* indirect sequential */
340 static int validate_cmd(int cmd)
342 int ret = do_validate_cmd(cmd);
344 /* printk("validate_cmd( %x ): %d\n", cmd, ret); */
349 static int i915_emit_cmds(struct drm_device *dev, int __user *buffer,
352 drm_i915_private_t *dev_priv = dev->dev_private;
355 if ((dwords+1) * sizeof(int) >= LP_RING(dev_priv)->size - 8)
358 ret = BEGIN_LP_RING((dwords+1)&~1);
362 for (i = 0; i < dwords;) {
365 if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))
368 if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
374 if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i],
390 int i915_emit_box(struct drm_device * dev,
391 struct drm_clip_rect *boxes,
392 int i, int DR1, int DR4)
394 struct drm_clip_rect box;
396 if (DRM_COPY_FROM_USER_UNCHECKED(&box, &boxes[i], sizeof(box))) {
400 return (i915_emit_box_p(dev, &box, DR1, DR4));
404 i915_emit_box_p(struct drm_device *dev, struct drm_clip_rect *box,
407 drm_i915_private_t *dev_priv = dev->dev_private;
410 if (box->y2 <= box->y1 || box->x2 <= box->x1 || box->y2 <= 0 ||
412 DRM_ERROR("Bad box %d,%d..%d,%d\n",
413 box->x1, box->y1, box->x2, box->y2);
417 if (INTEL_INFO(dev)->gen >= 4) {
418 ret = BEGIN_LP_RING(4);
422 OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
423 OUT_RING((box->x1 & 0xffff) | (box->y1 << 16));
424 OUT_RING(((box->x2 - 1) & 0xffff) | ((box->y2 - 1) << 16));
427 ret = BEGIN_LP_RING(6);
431 OUT_RING(GFX_OP_DRAWRECT_INFO);
433 OUT_RING((box->x1 & 0xffff) | (box->y1 << 16));
434 OUT_RING(((box->x2 - 1) & 0xffff) | ((box->y2 - 1) << 16));
443 /* XXX: Emitting the counter should really be moved to part of the IRQ
444 * emit. For now, do it in both places:
447 static void i915_emit_breadcrumb(struct drm_device *dev)
449 drm_i915_private_t *dev_priv = dev->dev_private;
451 if (++dev_priv->counter > 0x7FFFFFFFUL)
452 dev_priv->counter = 0;
453 if (dev_priv->sarea_priv)
454 dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
456 if (BEGIN_LP_RING(4) == 0) {
457 OUT_RING(MI_STORE_DWORD_INDEX);
458 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
459 OUT_RING(dev_priv->counter);
465 static int i915_dispatch_cmdbuffer(struct drm_device * dev,
466 drm_i915_cmdbuffer_t * cmd, struct drm_clip_rect *cliprects, void *cmdbuf)
468 int nbox = cmd->num_cliprects;
469 int i = 0, count, ret;
472 DRM_ERROR("alignment\n");
476 i915_kernel_lost_context(dev);
478 count = nbox ? nbox : 1;
480 for (i = 0; i < count; i++) {
482 ret = i915_emit_box_p(dev, &cmd->cliprects[i],
488 ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
493 i915_emit_breadcrumb(dev);
498 i915_dispatch_batchbuffer(struct drm_device * dev,
499 drm_i915_batchbuffer_t * batch, struct drm_clip_rect *cliprects)
501 drm_i915_private_t *dev_priv = dev->dev_private;
502 int nbox = batch->num_cliprects;
505 if ((batch->start | batch->used) & 0x7) {
506 DRM_ERROR("alignment\n");
510 i915_kernel_lost_context(dev);
512 count = nbox ? nbox : 1;
514 for (i = 0; i < count; i++) {
516 int ret = i915_emit_box_p(dev, &cliprects[i],
517 batch->DR1, batch->DR4);
522 if (!IS_I830(dev) && !IS_845G(dev)) {
523 ret = BEGIN_LP_RING(2);
527 if (INTEL_INFO(dev)->gen >= 4) {
528 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) |
529 MI_BATCH_NON_SECURE_I965);
530 OUT_RING(batch->start);
532 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
533 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
536 ret = BEGIN_LP_RING(4);
540 OUT_RING(MI_BATCH_BUFFER);
541 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
542 OUT_RING(batch->start + batch->used - 4);
548 i915_emit_breadcrumb(dev);
553 static int i915_dispatch_flip(struct drm_device * dev)
555 drm_i915_private_t *dev_priv = dev->dev_private;
558 if (!dev_priv->sarea_priv)
561 DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
563 dev_priv->current_page,
564 dev_priv->sarea_priv->pf_current_page);
566 i915_kernel_lost_context(dev);
568 ret = BEGIN_LP_RING(10);
571 OUT_RING(MI_FLUSH | MI_READ_FLUSH);
574 OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
576 if (dev_priv->current_page == 0) {
577 OUT_RING(dev_priv->back_offset);
578 dev_priv->current_page = 1;
580 OUT_RING(dev_priv->front_offset);
581 dev_priv->current_page = 0;
585 OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
590 if (++dev_priv->counter > 0x7FFFFFFFUL)
591 dev_priv->counter = 0;
592 if (dev_priv->sarea_priv)
593 dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
595 if (BEGIN_LP_RING(4) == 0) {
596 OUT_RING(MI_STORE_DWORD_INDEX);
597 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
598 OUT_RING(dev_priv->counter);
603 dev_priv->sarea_priv->pf_current_page = dev_priv->current_page;
607 static int i915_quiescent(struct drm_device *dev)
609 i915_kernel_lost_context(dev);
610 return intel_ring_idle(LP_RING(dev->dev_private));
614 i915_flush_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv)
618 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
621 ret = i915_quiescent(dev);
627 static int i915_batchbuffer(struct drm_device *dev, void *data,
628 struct drm_file *file_priv)
630 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
631 drm_i915_sarea_t *sarea_priv;
632 drm_i915_batchbuffer_t *batch = data;
633 struct drm_clip_rect *cliprects;
637 if (!dev_priv->allow_batchbuffer) {
638 DRM_ERROR("Batchbuffer ioctl disabled\n");
643 DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n",
644 batch->start, batch->used, batch->num_cliprects);
646 cliplen = batch->num_cliprects * sizeof(struct drm_clip_rect);
647 if (batch->num_cliprects < 0)
649 if (batch->num_cliprects != 0) {
650 cliprects = kmalloc(batch->num_cliprects *
651 sizeof(struct drm_clip_rect), DRM_MEM_DMA,
654 ret = -copyin(batch->cliprects, cliprects,
655 batch->num_cliprects * sizeof(struct drm_clip_rect));
664 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
665 ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
667 sarea_priv = (drm_i915_sarea_t *)dev_priv->sarea_priv;
669 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
672 drm_free(cliprects, DRM_MEM_DMA);
676 static int i915_cmdbuffer(struct drm_device *dev, void *data,
677 struct drm_file *file_priv)
679 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
680 drm_i915_sarea_t *sarea_priv;
681 drm_i915_cmdbuffer_t *cmdbuf = data;
682 struct drm_clip_rect *cliprects = NULL;
686 DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
687 cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
689 if (cmdbuf->num_cliprects < 0)
694 batch_data = kmalloc(cmdbuf->sz, DRM_MEM_DMA, M_WAITOK);
696 ret = -copyin(cmdbuf->buf, batch_data, cmdbuf->sz);
699 goto fail_batch_free;
702 if (cmdbuf->num_cliprects) {
703 cliprects = kmalloc(cmdbuf->num_cliprects *
704 sizeof(struct drm_clip_rect), DRM_MEM_DMA,
706 ret = -copyin(cmdbuf->cliprects, cliprects,
707 cmdbuf->num_cliprects * sizeof(struct drm_clip_rect));
715 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
716 ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
718 DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
722 sarea_priv = (drm_i915_sarea_t *)dev_priv->sarea_priv;
724 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
727 drm_free(cliprects, DRM_MEM_DMA);
729 drm_free(batch_data, DRM_MEM_DMA);
733 static int i915_emit_irq(struct drm_device * dev)
735 drm_i915_private_t *dev_priv = dev->dev_private;
737 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
740 i915_kernel_lost_context(dev);
742 DRM_DEBUG("i915: emit_irq\n");
745 if (dev_priv->counter > 0x7FFFFFFFUL)
746 dev_priv->counter = 1;
748 if (master_priv->sarea_priv)
749 master_priv->sarea_priv->last_enqueue = dev_priv->counter;
751 if (dev_priv->sarea_priv)
752 dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
755 if (BEGIN_LP_RING(4) == 0) {
756 OUT_RING(MI_STORE_DWORD_INDEX);
757 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
758 OUT_RING(dev_priv->counter);
759 OUT_RING(MI_USER_INTERRUPT);
763 return dev_priv->counter;
766 static int i915_wait_irq(struct drm_device * dev, int irq_nr)
768 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
770 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
773 struct intel_ring_buffer *ring = LP_RING(dev_priv);
775 DRM_DEBUG_DRIVER("irq_nr=%d breadcrumb=%d\n", irq_nr,
776 READ_BREADCRUMB(dev_priv));
779 if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
780 if (master_priv->sarea_priv)
781 master_priv->sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
785 if (master_priv->sarea_priv)
786 master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
788 if (READ_BREADCRUMB(dev_priv) >= irq_nr) {
789 if (dev_priv->sarea_priv) {
790 dev_priv->sarea_priv->last_dispatch =
791 READ_BREADCRUMB(dev_priv);
796 if (dev_priv->sarea_priv)
797 dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
800 if (ring->irq_get(ring)) {
801 DRM_WAIT_ON(ret, ring->irq_queue, 3 * DRM_HZ,
802 READ_BREADCRUMB(dev_priv) >= irq_nr);
804 } else if (wait_for(READ_BREADCRUMB(dev_priv) >= irq_nr, 3000))
808 DRM_ERROR("EBUSY -- rec: %d emitted: %d\n",
809 READ_BREADCRUMB(dev_priv), (int)dev_priv->counter);
815 /* Needs the lock as it touches the ring.
817 int i915_irq_emit(struct drm_device *dev, void *data,
818 struct drm_file *file_priv)
820 drm_i915_private_t *dev_priv = dev->dev_private;
821 drm_i915_irq_emit_t *emit = data;
824 if (!dev_priv || !LP_RING(dev_priv)->virtual_start) {
825 DRM_ERROR("called with no initialization\n");
829 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
832 result = i915_emit_irq(dev);
835 if (DRM_COPY_TO_USER(emit->irq_seq, &result, sizeof(int))) {
836 DRM_ERROR("copy_to_user\n");
843 /* Doesn't need the hardware lock.
845 int i915_irq_wait(struct drm_device *dev, void *data,
846 struct drm_file *file_priv)
848 drm_i915_private_t *dev_priv = dev->dev_private;
849 drm_i915_irq_wait_t *irqwait = data;
852 DRM_ERROR("called with no initialization\n");
856 return i915_wait_irq(dev, irqwait->irq_seq);
859 static int i915_vblank_pipe_get(struct drm_device *dev, void *data,
860 struct drm_file *file_priv)
862 drm_i915_private_t *dev_priv = dev->dev_private;
863 drm_i915_vblank_pipe_t *pipe = data;
865 if (drm_core_check_feature(dev, DRIVER_MODESET))
869 DRM_ERROR("called with no initialization\n");
873 pipe->pipe = DRM_I915_VBLANK_PIPE_A | DRM_I915_VBLANK_PIPE_B;
879 * Schedule buffer swap at given vertical blank.
881 static int i915_vblank_swap(struct drm_device *dev, void *data,
882 struct drm_file *file_priv)
884 /* The delayed swap mechanism was fundamentally racy, and has been
885 * removed. The model was that the client requested a delayed flip/swap
886 * from the kernel, then waited for vblank before continuing to perform
887 * rendering. The problem was that the kernel might wake the client
888 * up before it dispatched the vblank swap (since the lock has to be
889 * held while touching the ringbuffer), in which case the client would
890 * clear and start the next frame before the swap occurred, and
891 * flicker would occur in addition to likely missing the vblank.
893 * In the absence of this ioctl, userland falls back to a correct path
894 * of waiting for a vblank, then dispatching the swap on its own.
895 * Context switching to userland and back is plenty fast enough for
896 * meeting the requirements of vblank swapping.
901 static int i915_flip_bufs(struct drm_device *dev, void *data,
902 struct drm_file *file_priv)
906 DRM_DEBUG("%s\n", __func__);
908 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
910 ret = i915_dispatch_flip(dev);
915 static int i915_getparam(struct drm_device *dev, void *data,
916 struct drm_file *file_priv)
918 drm_i915_private_t *dev_priv = dev->dev_private;
919 drm_i915_getparam_t *param = data;
923 DRM_ERROR("called with no initialization\n");
927 switch (param->param) {
928 case I915_PARAM_IRQ_ACTIVE:
929 value = dev->irq_enabled ? 1 : 0;
931 case I915_PARAM_ALLOW_BATCHBUFFER:
932 value = dev_priv->allow_batchbuffer ? 1 : 0;
934 case I915_PARAM_LAST_DISPATCH:
935 value = READ_BREADCRUMB(dev_priv);
937 case I915_PARAM_CHIPSET_ID:
938 value = dev->pci_device;
940 case I915_PARAM_HAS_GEM:
943 case I915_PARAM_NUM_FENCES_AVAIL:
944 value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
946 case I915_PARAM_HAS_OVERLAY:
947 value = dev_priv->overlay ? 1 : 0;
949 case I915_PARAM_HAS_PAGEFLIPPING:
952 case I915_PARAM_HAS_EXECBUF2:
955 case I915_PARAM_HAS_BSD:
956 value = HAS_BSD(dev);
958 case I915_PARAM_HAS_BLT:
959 value = HAS_BLT(dev);
961 case I915_PARAM_HAS_RELAXED_FENCING:
964 case I915_PARAM_HAS_COHERENT_RINGS:
967 case I915_PARAM_HAS_EXEC_CONSTANTS:
968 value = INTEL_INFO(dev)->gen >= 4;
970 case I915_PARAM_HAS_RELAXED_DELTA:
973 case I915_PARAM_HAS_GEN7_SOL_RESET:
976 case I915_PARAM_HAS_LLC:
977 value = HAS_LLC(dev);
980 DRM_DEBUG_DRIVER("Unknown parameter %d\n",
985 if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
986 DRM_ERROR("DRM_COPY_TO_USER failed\n");
993 static int i915_setparam(struct drm_device *dev, void *data,
994 struct drm_file *file_priv)
996 drm_i915_private_t *dev_priv = dev->dev_private;
997 drm_i915_setparam_t *param = data;
1000 DRM_ERROR("called with no initialization\n");
1004 switch (param->param) {
1005 case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
1007 case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
1008 dev_priv->tex_lru_log_granularity = param->value;
1010 case I915_SETPARAM_ALLOW_BATCHBUFFER:
1011 dev_priv->allow_batchbuffer = param->value;
1013 case I915_SETPARAM_NUM_USED_FENCES:
1014 if (param->value > dev_priv->num_fence_regs ||
1017 /* Userspace can use first N regs */
1018 dev_priv->fence_reg_start = param->value;
1021 DRM_DEBUG("unknown parameter %d\n", param->param);
1028 static int i915_set_status_page(struct drm_device *dev, void *data,
1029 struct drm_file *file_priv)
1031 drm_i915_private_t *dev_priv = dev->dev_private;
1032 drm_i915_hws_addr_t *hws = data;
1033 struct intel_ring_buffer *ring = LP_RING(dev_priv);
1035 if (!I915_NEED_GFX_HWS(dev))
1039 DRM_ERROR("called with no initialization\n");
1043 DRM_DEBUG("set status page addr 0x%08x\n", (u32)hws->addr);
1044 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1045 DRM_ERROR("tried to set status page when mode setting active\n");
1049 ring->status_page.gfx_addr = dev_priv->status_gfx_addr =
1050 hws->addr & (0x1ffff<<12);
1052 dev_priv->hws_map.offset = dev->agp->base + hws->addr;
1053 dev_priv->hws_map.size = 4*1024;
1054 dev_priv->hws_map.type = 0;
1055 dev_priv->hws_map.flags = 0;
1056 dev_priv->hws_map.mtrr = 0;
1058 drm_core_ioremap_wc(&dev_priv->hws_map, dev);
1059 if (dev_priv->hws_map.virtual == NULL) {
1060 i915_dma_cleanup(dev);
1061 ring->status_page.gfx_addr = dev_priv->status_gfx_addr = 0;
1062 DRM_ERROR("can not ioremap virtual address for"
1063 " G33 hw status page\n");
1066 ring->status_page.page_addr = dev_priv->hw_status_page =
1067 dev_priv->hws_map.virtual;
1069 memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
1070 I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
1071 DRM_DEBUG("load hws HWS_PGA with gfx mem 0x%x\n",
1072 dev_priv->status_gfx_addr);
1073 DRM_DEBUG("load hws at %p\n", dev_priv->hw_status_page);
1078 intel_enable_ppgtt(struct drm_device *dev)
1080 if (i915_enable_ppgtt >= 0)
1081 return i915_enable_ppgtt;
1083 /* Disable ppgtt on SNB if VT-d is on. */
1084 if (INTEL_INFO(dev)->gen == 6 && intel_iommu_enabled)
1091 i915_load_gem_init(struct drm_device *dev)
1093 struct drm_i915_private *dev_priv = dev->dev_private;
1094 unsigned long prealloc_size, gtt_size, mappable_size;
1097 prealloc_size = dev_priv->mm.gtt->stolen_size;
1098 gtt_size = dev_priv->mm.gtt->gtt_total_entries << PAGE_SHIFT;
1099 mappable_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
1101 /* Basic memrange allocator for stolen space */
1102 drm_mm_init(&dev_priv->mm.stolen, 0, prealloc_size);
1105 if (intel_enable_ppgtt(dev) && HAS_ALIASING_PPGTT(dev)) {
1106 /* PPGTT pdes are stolen from global gtt ptes, so shrink the
1107 * aperture accordingly when using aliasing ppgtt. */
1108 gtt_size -= I915_PPGTT_PD_ENTRIES*PAGE_SIZE;
1109 /* For paranoia keep the guard page in between. */
1110 gtt_size -= PAGE_SIZE;
1112 i915_gem_do_init(dev, 0, mappable_size, gtt_size);
1114 ret = i915_gem_init_aliasing_ppgtt(dev);
1120 /* Let GEM Manage all of the aperture.
1122 * However, leave one page at the end still bound to the scratch
1123 * page. There are a number of places where the hardware
1124 * apparently prefetches past the end of the object, and we've
1125 * seen multiple hangs with the GPU head pointer stuck in a
1126 * batchbuffer bound at the last page of the aperture. One page
1127 * should be enough to keep any prefetching inside of the
1130 i915_gem_do_init(dev, 0, mappable_size, gtt_size - PAGE_SIZE);
1133 ret = i915_gem_init_hw(dev);
1136 i915_gem_cleanup_aliasing_ppgtt(dev);
1141 /* Try to set up FBC with a reasonable compressed buffer size */
1142 if (I915_HAS_FBC(dev) && i915_powersave) {
1145 /* Leave 1M for line length buffer & misc. */
1147 /* Try to get a 32M buffer... */
1148 if (prealloc_size > (36*1024*1024))
1149 cfb_size = 32*1024*1024;
1150 else /* fall back to 7/8 of the stolen space */
1151 cfb_size = prealloc_size * 7 / 8;
1152 i915_setup_compression(dev, cfb_size);
1156 /* Allow hardware batchbuffers unless told otherwise. */
1157 dev_priv->allow_batchbuffer = 1;
1162 i915_load_modeset_init(struct drm_device *dev)
1164 struct drm_i915_private *dev_priv = dev->dev_private;
1167 ret = intel_parse_bios(dev);
1169 DRM_INFO("failed to find VBIOS tables\n");
1172 intel_register_dsm_handler();
1175 intel_modeset_init(dev);
1177 ret = i915_load_gem_init(dev);
1181 intel_modeset_gem_init(dev);
1183 ret = drm_irq_install(dev);
1187 dev->vblank_disable_allowed = 1;
1189 ret = intel_fbdev_init(dev);
1193 drm_kms_helper_poll_init(dev);
1195 /* We're off and running w/KMS */
1196 dev_priv->mm.suspended = 0;
1202 i915_gem_cleanup_ringbuffer(dev);
1204 i915_gem_cleanup_aliasing_ppgtt(dev);
1209 i915_get_bridge_dev(struct drm_device *dev)
1211 struct drm_i915_private *dev_priv;
1213 dev_priv = dev->dev_private;
1215 dev_priv->bridge_dev = intel_gtt_get_bridge_device();
1216 if (dev_priv->bridge_dev == NULL) {
1217 DRM_ERROR("bridge device not found\n");
1223 #define MCHBAR_I915 0x44
1224 #define MCHBAR_I965 0x48
1225 #define MCHBAR_SIZE (4*4096)
1227 #define DEVEN_REG 0x54
1228 #define DEVEN_MCHBAR_EN (1 << 28)
1230 /* Allocate space for the MCH regs if needed, return nonzero on error */
1232 intel_alloc_mchbar_resource(struct drm_device *dev)
1234 drm_i915_private_t *dev_priv;
1237 u32 temp_lo, temp_hi;
1238 u64 mchbar_addr, temp;
1240 dev_priv = dev->dev_private;
1241 reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
1243 if (INTEL_INFO(dev)->gen >= 4)
1244 temp_hi = pci_read_config(dev_priv->bridge_dev, reg + 4, 4);
1247 temp_lo = pci_read_config(dev_priv->bridge_dev, reg, 4);
1248 mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
1250 /* If ACPI doesn't have it, assume we need to allocate it ourselves */
1251 #ifdef XXX_CONFIG_PNP
1253 pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
1257 /* Get some space for it */
1258 vga = device_get_parent(dev->dev);
1259 dev_priv->mch_res_rid = 0x100;
1260 dev_priv->mch_res = BUS_ALLOC_RESOURCE(device_get_parent(vga),
1261 dev->dev, SYS_RES_MEMORY, &dev_priv->mch_res_rid, 0, ~0UL,
1262 MCHBAR_SIZE, RF_ACTIVE | RF_SHAREABLE, -1);
1263 if (dev_priv->mch_res == NULL) {
1264 DRM_ERROR("failed mchbar resource alloc\n");
1268 if (INTEL_INFO(dev)->gen >= 4) {
1269 temp = rman_get_start(dev_priv->mch_res);
1271 pci_write_config(dev_priv->bridge_dev, reg + 4, temp, 4);
1273 pci_write_config(dev_priv->bridge_dev, reg,
1274 rman_get_start(dev_priv->mch_res) & UINT32_MAX, 4);
1279 intel_setup_mchbar(struct drm_device *dev)
1281 drm_i915_private_t *dev_priv;
1286 dev_priv = dev->dev_private;
1287 mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
1289 dev_priv->mchbar_need_disable = false;
1291 if (IS_I915G(dev) || IS_I915GM(dev)) {
1292 temp = pci_read_config(dev_priv->bridge_dev, DEVEN_REG, 4);
1293 enabled = (temp & DEVEN_MCHBAR_EN) != 0;
1295 temp = pci_read_config(dev_priv->bridge_dev, mchbar_reg, 4);
1299 /* If it's already enabled, don't have to do anything */
1301 DRM_DEBUG("mchbar already enabled\n");
1305 if (intel_alloc_mchbar_resource(dev))
1308 dev_priv->mchbar_need_disable = true;
1310 /* Space is allocated or reserved, so enable it. */
1311 if (IS_I915G(dev) || IS_I915GM(dev)) {
1312 pci_write_config(dev_priv->bridge_dev, DEVEN_REG,
1313 temp | DEVEN_MCHBAR_EN, 4);
1315 temp = pci_read_config(dev_priv->bridge_dev, mchbar_reg, 4);
1316 pci_write_config(dev_priv->bridge_dev, mchbar_reg, temp | 1, 4);
1321 intel_teardown_mchbar(struct drm_device *dev)
1323 drm_i915_private_t *dev_priv;
1328 dev_priv = dev->dev_private;
1329 mchbar_reg = INTEL_INFO(dev)->gen >= 4 ? MCHBAR_I965 : MCHBAR_I915;
1331 if (dev_priv->mchbar_need_disable) {
1332 if (IS_I915G(dev) || IS_I915GM(dev)) {
1333 temp = pci_read_config(dev_priv->bridge_dev,
1335 temp &= ~DEVEN_MCHBAR_EN;
1336 pci_write_config(dev_priv->bridge_dev, DEVEN_REG,
1339 temp = pci_read_config(dev_priv->bridge_dev,
1342 pci_write_config(dev_priv->bridge_dev, mchbar_reg,
1347 if (dev_priv->mch_res != NULL) {
1348 vga = device_get_parent(dev->dev);
1349 BUS_DEACTIVATE_RESOURCE(device_get_parent(vga), dev->dev,
1350 SYS_RES_MEMORY, dev_priv->mch_res_rid, dev_priv->mch_res);
1351 BUS_RELEASE_RESOURCE(device_get_parent(vga), dev->dev,
1352 SYS_RES_MEMORY, dev_priv->mch_res_rid, dev_priv->mch_res);
1353 dev_priv->mch_res = NULL;
1358 * i915_driver_load - setup chip and create an initial config
1360 * @flags: startup flags
1362 * The driver load routine has to do several things:
1363 * - drive output discovery via intel_modeset_init()
1364 * - initialize the memory manager
1365 * - allocate initial config memory
1366 * - setup the DRM framebuffer with the allocated memory
1368 int i915_driver_load(struct drm_device *dev, unsigned long flags)
1370 struct drm_i915_private *dev_priv = dev->dev_private;
1371 unsigned long base, size;
1376 /* i915 has 4 more counters */
1378 dev->types[6] = _DRM_STAT_IRQ;
1379 dev->types[7] = _DRM_STAT_PRIMARY;
1380 dev->types[8] = _DRM_STAT_SECONDARY;
1381 dev->types[9] = _DRM_STAT_DMA;
1383 dev_priv = kmalloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER,
1385 if (dev_priv == NULL)
1388 dev->dev_private = (void *)dev_priv;
1389 dev_priv->dev = dev;
1390 dev_priv->info = i915_get_device_id(dev->pci_device);
1392 if (i915_get_bridge_dev(dev)) {
1393 drm_free(dev_priv, DRM_MEM_DRIVER);
1396 dev_priv->mm.gtt = intel_gtt_get();
1398 /* Add register map (needed for suspend/resume) */
1399 mmio_bar = IS_GEN2(dev) ? 1 : 0;
1400 base = drm_get_resource_start(dev, mmio_bar);
1401 size = drm_get_resource_len(dev, mmio_bar);
1403 ret = drm_addmap(dev, base, size, _DRM_REGISTERS,
1404 _DRM_KERNEL | _DRM_DRIVER, &dev_priv->mmio_map);
1406 /* The i915 workqueue is primarily used for batched retirement of
1407 * requests (and thus managing bo) once the task has been completed
1408 * by the GPU. i915_gem_retire_requests() is called directly when we
1409 * need high-priority retirement, such as waiting for an explicit
1412 * It is also used for periodic low-priority events, such as
1413 * idle-timers and recording error state.
1415 * All tasks on the workqueue are expected to acquire the dev mutex
1416 * so there is no point in running more than one instance of the
1417 * workqueue at any time. Use an ordered one.
1419 dev_priv->wq = alloc_ordered_workqueue("i915", 0);
1420 if (dev_priv->wq == NULL) {
1421 DRM_ERROR("Failed to create our workqueue.\n");
1426 /* This must be called before any calls to HAS_PCH_* */
1427 intel_detect_pch(dev);
1429 intel_irq_init(dev);
1432 /* Try to make sure MCHBAR is enabled before poking at it */
1433 intel_setup_mchbar(dev);
1434 intel_setup_gmbus(dev);
1435 intel_opregion_setup(dev);
1437 intel_setup_bios(dev);
1441 /* On the 945G/GM, the chipset reports the MSI capability on the
1442 * integrated graphics even though the support isn't actually there
1443 * according to the published specs. It doesn't appear to function
1444 * correctly in testing on 945G.
1445 * This may be a side effect of MSI having been made available for PEG
1446 * and the registers being closely associated.
1448 * According to chipset errata, on the 965GM, MSI interrupts may
1449 * be lost or delayed, but we use them anyways to avoid
1450 * stuck interrupts on some machines.
1453 lockinit(&dev_priv->irq_lock, "userirq", 0, LK_CANRECURSE);
1454 lockinit(&dev_priv->error_lock, "915err", 0, LK_CANRECURSE);
1455 spin_init(&dev_priv->rps.lock);
1457 lockinit(&dev_priv->rps.hw_lock, "i915 rps.hw_lock", 0, LK_CANRECURSE);
1460 if (!I915_NEED_GFX_HWS(dev)) {
1461 ret = i915_init_phys_hws(dev);
1463 drm_rmmap(dev, dev_priv->mmio_map);
1464 drm_free(dev_priv, DRM_MEM_DRIVER);
1469 if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
1470 dev_priv->num_pipe = 3;
1471 else if (IS_MOBILE(dev) || !IS_GEN2(dev))
1472 dev_priv->num_pipe = 2;
1474 dev_priv->num_pipe = 1;
1476 ret = drm_vblank_init(dev, dev_priv->num_pipe);
1478 goto out_gem_unload;
1480 /* Start out suspended */
1481 dev_priv->mm.suspended = 1;
1483 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1484 ret = i915_load_modeset_init(dev);
1486 DRM_ERROR("failed to init modeset\n");
1487 goto out_gem_unload;
1491 /* Must be done after probing outputs */
1492 intel_opregion_init(dev);
1494 setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
1495 (unsigned long) dev);
1498 lockmgr(&mchdev_lock, LK_EXCLUSIVE);
1499 i915_mch_dev = dev_priv;
1500 dev_priv->mchdev_lock = &mchdev_lock;
1501 lockmgr(&mchdev_lock, LK_RELEASE);
1507 intel_teardown_gmbus(dev);
1508 intel_teardown_mchbar(dev);
1509 destroy_workqueue(dev_priv->wq);
1514 int i915_driver_unload(struct drm_device *dev)
1516 struct drm_i915_private *dev_priv = dev->dev_private;
1519 intel_gpu_ips_teardown();
1522 ret = i915_gpu_idle(dev);
1524 DRM_ERROR("failed to idle hardware: %d\n", ret);
1525 i915_gem_retire_requests(dev);
1528 /* Cancel the retire work handler, which should be idle now. */
1529 cancel_delayed_work_sync(&dev_priv->mm.retire_work);
1533 intel_teardown_mchbar(dev);
1535 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1536 intel_fbdev_fini(dev);
1537 intel_modeset_cleanup(dev);
1540 /* Free error state after interrupts are fully disabled. */
1541 del_timer_sync(&dev_priv->hangcheck_timer);
1542 cancel_work_sync(&dev_priv->error_work);
1543 i915_destroy_error_state(dev);
1545 intel_opregion_fini(dev);
1547 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
1548 /* Flush any outstanding unpin_work. */
1549 flush_workqueue(dev_priv->wq);
1552 i915_gem_free_all_phys_object(dev);
1553 i915_gem_cleanup_ringbuffer(dev);
1555 i915_gem_cleanup_aliasing_ppgtt(dev);
1556 drm_mm_takedown(&dev_priv->mm.stolen);
1558 intel_cleanup_overlay(dev);
1560 if (!I915_NEED_GFX_HWS(dev))
1564 i915_gem_unload(dev);
1566 bus_generic_detach(dev->dev);
1567 drm_rmmap(dev, dev_priv->mmio_map);
1568 intel_teardown_gmbus(dev);
1570 destroy_workqueue(dev_priv->wq);
1572 drm_free(dev->dev_private, DRM_MEM_DRIVER);
1578 i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
1580 struct drm_i915_file_private *i915_file_priv;
1582 i915_file_priv = kmalloc(sizeof(*i915_file_priv), DRM_MEM_FILES,
1585 spin_init(&i915_file_priv->mm.lock);
1586 INIT_LIST_HEAD(&i915_file_priv->mm.request_list);
1587 file_priv->driver_priv = i915_file_priv;
1593 i915_driver_lastclose(struct drm_device * dev)
1595 drm_i915_private_t *dev_priv = dev->dev_private;
1597 if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
1601 drm_fb_helper_restore();
1602 vga_switcheroo_process_delayed_switch();
1606 i915_gem_lastclose(dev);
1607 i915_dma_cleanup(dev);
1610 void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
1613 i915_gem_release(dev, file_priv);
1616 void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv)
1618 struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv;
1620 spin_uninit(&i915_file_priv->mm.lock);
1621 drm_free(i915_file_priv, DRM_MEM_FILES);
1624 struct drm_ioctl_desc i915_ioctls[] = {
1625 DRM_IOCTL_DEF(DRM_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1626 DRM_IOCTL_DEF(DRM_I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
1627 DRM_IOCTL_DEF(DRM_I915_FLIP, i915_flip_bufs, DRM_AUTH),
1628 DRM_IOCTL_DEF(DRM_I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
1629 DRM_IOCTL_DEF(DRM_I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
1630 DRM_IOCTL_DEF(DRM_I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
1631 DRM_IOCTL_DEF(DRM_I915_GETPARAM, i915_getparam, DRM_AUTH),
1632 DRM_IOCTL_DEF(DRM_I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1633 DRM_IOCTL_DEF(DRM_I915_ALLOC, drm_noop, DRM_AUTH),
1634 DRM_IOCTL_DEF(DRM_I915_FREE, drm_noop, DRM_AUTH),
1635 DRM_IOCTL_DEF(DRM_I915_INIT_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1636 DRM_IOCTL_DEF(DRM_I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
1637 DRM_IOCTL_DEF(DRM_I915_DESTROY_HEAP, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
1638 DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
1639 DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH ),
1640 DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
1641 DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1642 DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1643 DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH | DRM_UNLOCKED),
1644 DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH | DRM_UNLOCKED),
1645 DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
1646 DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
1647 DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
1648 DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH),
1649 DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1650 DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1651 DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, 0),
1652 DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_UNLOCKED),
1653 DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_UNLOCKED),
1654 DRM_IOCTL_DEF(DRM_I915_GEM_MMAP, i915_gem_mmap_ioctl, 0),
1655 DRM_IOCTL_DEF(DRM_I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_UNLOCKED),
1656 DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_UNLOCKED),
1657 DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_UNLOCKED),
1658 DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0),
1659 DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0),
1660 DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_UNLOCKED),
1661 DRM_IOCTL_DEF(DRM_I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, DRM_UNLOCKED),
1662 DRM_IOCTL_DEF(DRM_I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED),
1663 DRM_IOCTL_DEF(DRM_I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
1664 DRM_IOCTL_DEF(DRM_I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
1665 DRM_IOCTL_DEF(DRM_I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
1666 DRM_IOCTL_DEF(DRM_I915_GET_SPRITE_COLORKEY, intel_sprite_get_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
1669 struct drm_driver i915_driver_info = {
1670 .driver_features = DRIVER_USE_AGP | DRIVER_REQUIRE_AGP |
1671 DRIVER_USE_MTRR | DRIVER_HAVE_IRQ | DRIVER_LOCKLESS_IRQ |
1672 DRIVER_GEM /*| DRIVER_MODESET*/,
1674 .buf_priv_size = sizeof(drm_i915_private_t),
1675 .load = i915_driver_load,
1676 .open = i915_driver_open,
1677 .unload = i915_driver_unload,
1678 .preclose = i915_driver_preclose,
1679 .lastclose = i915_driver_lastclose,
1680 .postclose = i915_driver_postclose,
1681 .device_is_agp = i915_driver_device_is_agp,
1682 .gem_init_object = i915_gem_init_object,
1683 .gem_free_object = i915_gem_free_object,
1684 .gem_pager_ops = &i915_gem_pager_ops,
1685 .dumb_create = i915_gem_dumb_create,
1686 .dumb_map_offset = i915_gem_mmap_gtt,
1687 .dumb_destroy = i915_gem_dumb_destroy,
1688 .sysctl_init = i915_sysctl_init,
1689 .sysctl_cleanup = i915_sysctl_cleanup,
1691 .ioctls = i915_ioctls,
1692 .max_ioctl = DRM_ARRAY_SIZE(i915_ioctls),
1694 .name = DRIVER_NAME,
1695 .desc = DRIVER_DESC,
1696 .date = DRIVER_DATE,
1697 .major = DRIVER_MAJOR,
1698 .minor = DRIVER_MINOR,
1699 .patchlevel = DRIVER_PATCHLEVEL,
1703 * Determine if the device really is AGP or not.
1705 * All Intel graphics chipsets are treated as AGP, even if they are really
1708 * \param dev The device to be tested.
1711 * A value of 1 is always retured to indictate every i9x5 is AGP.
1713 int i915_driver_device_is_agp(struct drm_device * dev)