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.
31 #include "drm_crtc_helper.h"
32 #include "drm_fb_helper.h"
33 #include "intel_drv.h"
36 #include "i915_trace.h"
37 #include <linux/pci.h>
38 #include <linux/vgaarb.h>
39 #include <linux/acpi.h>
40 #include <linux/pnp.h>
41 #include <linux/vga_switcheroo.h>
42 #include <linux/slab.h>
43 #include <acpi/video.h>
46 * Sets up the hardware status page for devices that need a physical address
49 static int i915_init_phys_hws(struct drm_device *dev)
51 drm_i915_private_t *dev_priv = dev->dev_private;
52 /* Program Hardware Status Page */
53 dev_priv->status_page_dmah =
54 drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE);
56 if (!dev_priv->status_page_dmah) {
57 DRM_ERROR("Can not allocate hardware status page\n");
60 dev_priv->render_ring.status_page.page_addr
61 = dev_priv->status_page_dmah->vaddr;
62 dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;
64 memset(dev_priv->render_ring.status_page.page_addr, 0, PAGE_SIZE);
67 dev_priv->dma_status_page |= (dev_priv->dma_status_page >> 28) &
70 I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
71 DRM_DEBUG_DRIVER("Enabled hardware status page\n");
76 * Frees the hardware status page, whether it's a physical address or a virtual
77 * address set up by the X Server.
79 static void i915_free_hws(struct drm_device *dev)
81 drm_i915_private_t *dev_priv = dev->dev_private;
82 if (dev_priv->status_page_dmah) {
83 drm_pci_free(dev, dev_priv->status_page_dmah);
84 dev_priv->status_page_dmah = NULL;
87 if (dev_priv->render_ring.status_page.gfx_addr) {
88 dev_priv->render_ring.status_page.gfx_addr = 0;
89 drm_core_ioremapfree(&dev_priv->hws_map, dev);
92 /* Need to rewrite hardware status page */
93 I915_WRITE(HWS_PGA, 0x1ffff000);
96 void i915_kernel_lost_context(struct drm_device * dev)
98 drm_i915_private_t *dev_priv = dev->dev_private;
99 struct drm_i915_master_private *master_priv;
100 struct intel_ring_buffer *ring = &dev_priv->render_ring;
103 * We should never lose context on the ring with modesetting
104 * as we don't expose it to userspace
106 if (drm_core_check_feature(dev, DRIVER_MODESET))
109 ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
110 ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
111 ring->space = ring->head - (ring->tail + 8);
113 ring->space += ring->size;
115 if (!dev->primary->master)
118 master_priv = dev->primary->master->driver_priv;
119 if (ring->head == ring->tail && master_priv->sarea_priv)
120 master_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
123 static int i915_dma_cleanup(struct drm_device * dev)
125 drm_i915_private_t *dev_priv = dev->dev_private;
126 /* Make sure interrupts are disabled here because the uninstall ioctl
127 * may not have been called from userspace and after dev_private
128 * is freed, it's too late.
130 if (dev->irq_enabled)
131 drm_irq_uninstall(dev);
133 mutex_lock(&dev->struct_mutex);
134 intel_cleanup_ring_buffer(dev, &dev_priv->render_ring);
136 intel_cleanup_ring_buffer(dev, &dev_priv->bsd_ring);
137 mutex_unlock(&dev->struct_mutex);
139 /* Clear the HWS virtual address at teardown */
140 if (I915_NEED_GFX_HWS(dev))
146 static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
148 drm_i915_private_t *dev_priv = dev->dev_private;
149 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
151 master_priv->sarea = drm_getsarea(dev);
152 if (master_priv->sarea) {
153 master_priv->sarea_priv = (drm_i915_sarea_t *)
154 ((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
156 DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
159 if (init->ring_size != 0) {
160 if (dev_priv->render_ring.gem_object != NULL) {
161 i915_dma_cleanup(dev);
162 DRM_ERROR("Client tried to initialize ringbuffer in "
167 dev_priv->render_ring.size = init->ring_size;
169 dev_priv->render_ring.map.offset = init->ring_start;
170 dev_priv->render_ring.map.size = init->ring_size;
171 dev_priv->render_ring.map.type = 0;
172 dev_priv->render_ring.map.flags = 0;
173 dev_priv->render_ring.map.mtrr = 0;
175 drm_core_ioremap_wc(&dev_priv->render_ring.map, dev);
177 if (dev_priv->render_ring.map.handle == NULL) {
178 i915_dma_cleanup(dev);
179 DRM_ERROR("can not ioremap virtual address for"
185 dev_priv->render_ring.virtual_start = dev_priv->render_ring.map.handle;
187 dev_priv->cpp = init->cpp;
188 dev_priv->back_offset = init->back_offset;
189 dev_priv->front_offset = init->front_offset;
190 dev_priv->current_page = 0;
191 if (master_priv->sarea_priv)
192 master_priv->sarea_priv->pf_current_page = 0;
194 /* Allow hardware batchbuffers unless told otherwise.
196 dev_priv->allow_batchbuffer = 1;
201 static int i915_dma_resume(struct drm_device * dev)
203 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
205 struct intel_ring_buffer *ring;
206 DRM_DEBUG_DRIVER("%s\n", __func__);
208 ring = &dev_priv->render_ring;
210 if (ring->map.handle == NULL) {
211 DRM_ERROR("can not ioremap virtual address for"
216 /* Program Hardware Status Page */
217 if (!ring->status_page.page_addr) {
218 DRM_ERROR("Can not find hardware status page\n");
221 DRM_DEBUG_DRIVER("hw status page @ %p\n",
222 ring->status_page.page_addr);
223 if (ring->status_page.gfx_addr != 0)
224 ring->setup_status_page(dev, ring);
226 I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
228 DRM_DEBUG_DRIVER("Enabled hardware status page\n");
233 static int i915_dma_init(struct drm_device *dev, void *data,
234 struct drm_file *file_priv)
236 drm_i915_init_t *init = data;
239 switch (init->func) {
241 retcode = i915_initialize(dev, init);
243 case I915_CLEANUP_DMA:
244 retcode = i915_dma_cleanup(dev);
246 case I915_RESUME_DMA:
247 retcode = i915_dma_resume(dev);
257 /* Implement basically the same security restrictions as hardware does
258 * for MI_BATCH_NON_SECURE. These can be made stricter at any time.
260 * Most of the calculations below involve calculating the size of a
261 * particular instruction. It's important to get the size right as
262 * that tells us where the next instruction to check is. Any illegal
263 * instruction detected will be given a size of zero, which is a
264 * signal to abort the rest of the buffer.
266 static int do_validate_cmd(int cmd)
268 switch (((cmd >> 29) & 0x7)) {
270 switch ((cmd >> 23) & 0x3f) {
272 return 1; /* MI_NOOP */
274 return 1; /* MI_FLUSH */
276 return 0; /* disallow everything else */
280 return 0; /* reserved */
282 return (cmd & 0xff) + 2; /* 2d commands */
284 if (((cmd >> 24) & 0x1f) <= 0x18)
287 switch ((cmd >> 24) & 0x1f) {
291 switch ((cmd >> 16) & 0xff) {
293 return (cmd & 0x1f) + 2;
295 return (cmd & 0xf) + 2;
297 return (cmd & 0xffff) + 2;
301 return (cmd & 0xffff) + 1;
305 if ((cmd & (1 << 23)) == 0) /* inline vertices */
306 return (cmd & 0x1ffff) + 2;
307 else if (cmd & (1 << 17)) /* indirect random */
308 if ((cmd & 0xffff) == 0)
309 return 0; /* unknown length, too hard */
311 return (((cmd & 0xffff) + 1) / 2) + 1;
313 return 2; /* indirect sequential */
324 static int validate_cmd(int cmd)
326 int ret = do_validate_cmd(cmd);
328 /* printk("validate_cmd( %x ): %d\n", cmd, ret); */
333 static int i915_emit_cmds(struct drm_device * dev, int *buffer, int dwords)
335 drm_i915_private_t *dev_priv = dev->dev_private;
338 if ((dwords+1) * sizeof(int) >= dev_priv->render_ring.size - 8)
341 BEGIN_LP_RING((dwords+1)&~1);
343 for (i = 0; i < dwords;) {
348 if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
367 i915_emit_box(struct drm_device *dev,
368 struct drm_clip_rect *boxes,
369 int i, int DR1, int DR4)
371 struct drm_clip_rect box = boxes[i];
373 if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
374 DRM_ERROR("Bad box %d,%d..%d,%d\n",
375 box.x1, box.y1, box.x2, box.y2);
381 OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
382 OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
383 OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
388 OUT_RING(GFX_OP_DRAWRECT_INFO);
390 OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
391 OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
400 /* XXX: Emitting the counter should really be moved to part of the IRQ
401 * emit. For now, do it in both places:
404 static void i915_emit_breadcrumb(struct drm_device *dev)
406 drm_i915_private_t *dev_priv = dev->dev_private;
407 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
410 if (dev_priv->counter > 0x7FFFFFFFUL)
411 dev_priv->counter = 0;
412 if (master_priv->sarea_priv)
413 master_priv->sarea_priv->last_enqueue = dev_priv->counter;
416 OUT_RING(MI_STORE_DWORD_INDEX);
417 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
418 OUT_RING(dev_priv->counter);
423 static int i915_dispatch_cmdbuffer(struct drm_device * dev,
424 drm_i915_cmdbuffer_t *cmd,
425 struct drm_clip_rect *cliprects,
428 int nbox = cmd->num_cliprects;
429 int i = 0, count, ret;
432 DRM_ERROR("alignment");
436 i915_kernel_lost_context(dev);
438 count = nbox ? nbox : 1;
440 for (i = 0; i < count; i++) {
442 ret = i915_emit_box(dev, cliprects, i,
448 ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
453 i915_emit_breadcrumb(dev);
457 static int i915_dispatch_batchbuffer(struct drm_device * dev,
458 drm_i915_batchbuffer_t * batch,
459 struct drm_clip_rect *cliprects)
461 int nbox = batch->num_cliprects;
464 if ((batch->start | batch->used) & 0x7) {
465 DRM_ERROR("alignment");
469 i915_kernel_lost_context(dev);
471 count = nbox ? nbox : 1;
473 for (i = 0; i < count; i++) {
475 int ret = i915_emit_box(dev, cliprects, i,
476 batch->DR1, batch->DR4);
481 if (!IS_I830(dev) && !IS_845G(dev)) {
484 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
485 OUT_RING(batch->start);
487 OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
488 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
493 OUT_RING(MI_BATCH_BUFFER);
494 OUT_RING(batch->start | MI_BATCH_NON_SECURE);
495 OUT_RING(batch->start + batch->used - 4);
502 if (IS_G4X(dev) || IS_IRONLAKE(dev)) {
504 OUT_RING(MI_FLUSH | MI_NO_WRITE_FLUSH | MI_INVALIDATE_ISP);
508 i915_emit_breadcrumb(dev);
513 static int i915_dispatch_flip(struct drm_device * dev)
515 drm_i915_private_t *dev_priv = dev->dev_private;
516 struct drm_i915_master_private *master_priv =
517 dev->primary->master->driver_priv;
519 if (!master_priv->sarea_priv)
522 DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
524 dev_priv->current_page,
525 master_priv->sarea_priv->pf_current_page);
527 i915_kernel_lost_context(dev);
530 OUT_RING(MI_FLUSH | MI_READ_FLUSH);
535 OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
537 if (dev_priv->current_page == 0) {
538 OUT_RING(dev_priv->back_offset);
539 dev_priv->current_page = 1;
541 OUT_RING(dev_priv->front_offset);
542 dev_priv->current_page = 0;
548 OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
552 master_priv->sarea_priv->last_enqueue = dev_priv->counter++;
555 OUT_RING(MI_STORE_DWORD_INDEX);
556 OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
557 OUT_RING(dev_priv->counter);
561 master_priv->sarea_priv->pf_current_page = dev_priv->current_page;
565 static int i915_quiescent(struct drm_device * dev)
567 drm_i915_private_t *dev_priv = dev->dev_private;
569 i915_kernel_lost_context(dev);
570 return intel_wait_ring_buffer(dev, &dev_priv->render_ring,
571 dev_priv->render_ring.size - 8);
574 static int i915_flush_ioctl(struct drm_device *dev, void *data,
575 struct drm_file *file_priv)
579 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
581 mutex_lock(&dev->struct_mutex);
582 ret = i915_quiescent(dev);
583 mutex_unlock(&dev->struct_mutex);
588 static int i915_batchbuffer(struct drm_device *dev, void *data,
589 struct drm_file *file_priv)
591 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
592 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
593 drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
594 master_priv->sarea_priv;
595 drm_i915_batchbuffer_t *batch = data;
597 struct drm_clip_rect *cliprects = NULL;
599 if (!dev_priv->allow_batchbuffer) {
600 DRM_ERROR("Batchbuffer ioctl disabled\n");
604 DRM_DEBUG_DRIVER("i915 batchbuffer, start %x used %d cliprects %d\n",
605 batch->start, batch->used, batch->num_cliprects);
607 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
609 if (batch->num_cliprects < 0)
612 if (batch->num_cliprects) {
613 cliprects = kcalloc(batch->num_cliprects,
614 sizeof(struct drm_clip_rect),
616 if (cliprects == NULL)
619 ret = copy_from_user(cliprects, batch->cliprects,
620 batch->num_cliprects *
621 sizeof(struct drm_clip_rect));
628 mutex_lock(&dev->struct_mutex);
629 ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
630 mutex_unlock(&dev->struct_mutex);
633 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
641 static int i915_cmdbuffer(struct drm_device *dev, void *data,
642 struct drm_file *file_priv)
644 drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
645 struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
646 drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
647 master_priv->sarea_priv;
648 drm_i915_cmdbuffer_t *cmdbuf = data;
649 struct drm_clip_rect *cliprects = NULL;
653 DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
654 cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
656 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
658 if (cmdbuf->num_cliprects < 0)
661 batch_data = kmalloc(cmdbuf->sz, GFP_KERNEL);
662 if (batch_data == NULL)
665 ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
668 goto fail_batch_free;
671 if (cmdbuf->num_cliprects) {
672 cliprects = kcalloc(cmdbuf->num_cliprects,
673 sizeof(struct drm_clip_rect), GFP_KERNEL);
674 if (cliprects == NULL) {
676 goto fail_batch_free;
679 ret = copy_from_user(cliprects, cmdbuf->cliprects,
680 cmdbuf->num_cliprects *
681 sizeof(struct drm_clip_rect));
688 mutex_lock(&dev->struct_mutex);
689 ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
690 mutex_unlock(&dev->struct_mutex);
692 DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
697 sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
707 static int i915_flip_bufs(struct drm_device *dev, void *data,
708 struct drm_file *file_priv)
712 DRM_DEBUG_DRIVER("%s\n", __func__);
714 RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
716 mutex_lock(&dev->struct_mutex);
717 ret = i915_dispatch_flip(dev);
718 mutex_unlock(&dev->struct_mutex);
723 static int i915_getparam(struct drm_device *dev, void *data,
724 struct drm_file *file_priv)
726 drm_i915_private_t *dev_priv = dev->dev_private;
727 drm_i915_getparam_t *param = data;
731 DRM_ERROR("called with no initialization\n");
735 switch (param->param) {
736 case I915_PARAM_IRQ_ACTIVE:
737 value = dev->pdev->irq ? 1 : 0;
739 case I915_PARAM_ALLOW_BATCHBUFFER:
740 value = dev_priv->allow_batchbuffer ? 1 : 0;
742 case I915_PARAM_LAST_DISPATCH:
743 value = READ_BREADCRUMB(dev_priv);
745 case I915_PARAM_CHIPSET_ID:
746 value = dev->pci_device;
748 case I915_PARAM_HAS_GEM:
749 value = dev_priv->has_gem;
751 case I915_PARAM_NUM_FENCES_AVAIL:
752 value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
754 case I915_PARAM_HAS_OVERLAY:
755 value = dev_priv->overlay ? 1 : 0;
757 case I915_PARAM_HAS_PAGEFLIPPING:
760 case I915_PARAM_HAS_EXECBUF2:
762 value = dev_priv->has_gem;
764 case I915_PARAM_HAS_BSD:
765 value = HAS_BSD(dev);
768 DRM_DEBUG_DRIVER("Unknown parameter %d\n",
773 if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
774 DRM_ERROR("DRM_COPY_TO_USER failed\n");
781 static int i915_setparam(struct drm_device *dev, void *data,
782 struct drm_file *file_priv)
784 drm_i915_private_t *dev_priv = dev->dev_private;
785 drm_i915_setparam_t *param = data;
788 DRM_ERROR("called with no initialization\n");
792 switch (param->param) {
793 case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
795 case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
796 dev_priv->tex_lru_log_granularity = param->value;
798 case I915_SETPARAM_ALLOW_BATCHBUFFER:
799 dev_priv->allow_batchbuffer = param->value;
801 case I915_SETPARAM_NUM_USED_FENCES:
802 if (param->value > dev_priv->num_fence_regs ||
805 /* Userspace can use first N regs */
806 dev_priv->fence_reg_start = param->value;
809 DRM_DEBUG_DRIVER("unknown parameter %d\n",
817 static int i915_set_status_page(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_hws_addr_t *hws = data;
822 struct intel_ring_buffer *ring = &dev_priv->render_ring;
824 if (!I915_NEED_GFX_HWS(dev))
828 DRM_ERROR("called with no initialization\n");
832 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
833 WARN(1, "tried to set status page when mode setting active\n");
837 DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
839 ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
841 dev_priv->hws_map.offset = dev->agp->base + hws->addr;
842 dev_priv->hws_map.size = 4*1024;
843 dev_priv->hws_map.type = 0;
844 dev_priv->hws_map.flags = 0;
845 dev_priv->hws_map.mtrr = 0;
847 drm_core_ioremap_wc(&dev_priv->hws_map, dev);
848 if (dev_priv->hws_map.handle == NULL) {
849 i915_dma_cleanup(dev);
850 ring->status_page.gfx_addr = 0;
851 DRM_ERROR("can not ioremap virtual address for"
852 " G33 hw status page\n");
855 ring->status_page.page_addr = dev_priv->hws_map.handle;
856 memset(ring->status_page.page_addr, 0, PAGE_SIZE);
857 I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
859 DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
860 ring->status_page.gfx_addr);
861 DRM_DEBUG_DRIVER("load hws at %p\n",
862 ring->status_page.page_addr);
866 static int i915_get_bridge_dev(struct drm_device *dev)
868 struct drm_i915_private *dev_priv = dev->dev_private;
870 dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
871 if (!dev_priv->bridge_dev) {
872 DRM_ERROR("bridge device not found\n");
878 #define MCHBAR_I915 0x44
879 #define MCHBAR_I965 0x48
880 #define MCHBAR_SIZE (4*4096)
882 #define DEVEN_REG 0x54
883 #define DEVEN_MCHBAR_EN (1 << 28)
885 /* Allocate space for the MCH regs if needed, return nonzero on error */
887 intel_alloc_mchbar_resource(struct drm_device *dev)
889 drm_i915_private_t *dev_priv = dev->dev_private;
890 int reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
891 u32 temp_lo, temp_hi = 0;
896 pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
897 pci_read_config_dword(dev_priv->bridge_dev, reg, &temp_lo);
898 mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
900 /* If ACPI doesn't have it, assume we need to allocate it ourselves */
903 pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE))
907 /* Get some space for it */
908 dev_priv->mch_res.name = "i915 MCHBAR";
909 dev_priv->mch_res.flags = IORESOURCE_MEM;
910 ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus,
912 MCHBAR_SIZE, MCHBAR_SIZE,
914 0, pcibios_align_resource,
915 dev_priv->bridge_dev);
917 DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
918 dev_priv->mch_res.start = 0;
923 pci_write_config_dword(dev_priv->bridge_dev, reg + 4,
924 upper_32_bits(dev_priv->mch_res.start));
926 pci_write_config_dword(dev_priv->bridge_dev, reg,
927 lower_32_bits(dev_priv->mch_res.start));
931 /* Setup MCHBAR if possible, return true if we should disable it again */
933 intel_setup_mchbar(struct drm_device *dev)
935 drm_i915_private_t *dev_priv = dev->dev_private;
936 int mchbar_reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
940 dev_priv->mchbar_need_disable = false;
942 if (IS_I915G(dev) || IS_I915GM(dev)) {
943 pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
944 enabled = !!(temp & DEVEN_MCHBAR_EN);
946 pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
950 /* If it's already enabled, don't have to do anything */
954 if (intel_alloc_mchbar_resource(dev))
957 dev_priv->mchbar_need_disable = true;
959 /* Space is allocated or reserved, so enable it. */
960 if (IS_I915G(dev) || IS_I915GM(dev)) {
961 pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG,
962 temp | DEVEN_MCHBAR_EN);
964 pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
965 pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp | 1);
970 intel_teardown_mchbar(struct drm_device *dev)
972 drm_i915_private_t *dev_priv = dev->dev_private;
973 int mchbar_reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
976 if (dev_priv->mchbar_need_disable) {
977 if (IS_I915G(dev) || IS_I915GM(dev)) {
978 pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
979 temp &= ~DEVEN_MCHBAR_EN;
980 pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG, temp);
982 pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
984 pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp);
988 if (dev_priv->mch_res.start)
989 release_resource(&dev_priv->mch_res);
993 * i915_probe_agp - get AGP bootup configuration
995 * @aperture_size: returns AGP aperture configured size
996 * @preallocated_size: returns size of BIOS preallocated AGP space
998 * Since Intel integrated graphics are UMA, the BIOS has to set aside
999 * some RAM for the framebuffer at early boot. This code figures out
1000 * how much was set aside so we can use it for our own purposes.
1002 static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
1003 uint32_t *preallocated_size)
1005 struct drm_i915_private *dev_priv = dev->dev_private;
1007 unsigned long overhead;
1008 unsigned long stolen;
1010 /* Get the fb aperture size and "stolen" memory amount. */
1011 pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &tmp);
1013 *aperture_size = 1024 * 1024;
1014 *preallocated_size = 1024 * 1024;
1016 switch (dev->pdev->device) {
1017 case PCI_DEVICE_ID_INTEL_82830_CGC:
1018 case PCI_DEVICE_ID_INTEL_82845G_IG:
1019 case PCI_DEVICE_ID_INTEL_82855GM_IG:
1020 case PCI_DEVICE_ID_INTEL_82865_IG:
1021 if ((tmp & INTEL_GMCH_MEM_MASK) == INTEL_GMCH_MEM_64M)
1022 *aperture_size *= 64;
1024 *aperture_size *= 128;
1027 /* 9xx supports large sizes, just look at the length */
1028 *aperture_size = pci_resource_len(dev->pdev, 2);
1033 * Some of the preallocated space is taken by the GTT
1034 * and popup. GTT is 1K per MB of aperture size, and popup is 4K.
1036 if (IS_G4X(dev) || IS_PINEVIEW(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev))
1039 overhead = (*aperture_size / 1024) + 4096;
1042 /* SNB has memory control reg at 0x50.w */
1043 pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &tmp);
1045 switch (tmp & SNB_GMCH_GMS_STOLEN_MASK) {
1046 case INTEL_855_GMCH_GMS_DISABLED:
1047 DRM_ERROR("video memory is disabled\n");
1049 case SNB_GMCH_GMS_STOLEN_32M:
1050 stolen = 32 * 1024 * 1024;
1052 case SNB_GMCH_GMS_STOLEN_64M:
1053 stolen = 64 * 1024 * 1024;
1055 case SNB_GMCH_GMS_STOLEN_96M:
1056 stolen = 96 * 1024 * 1024;
1058 case SNB_GMCH_GMS_STOLEN_128M:
1059 stolen = 128 * 1024 * 1024;
1061 case SNB_GMCH_GMS_STOLEN_160M:
1062 stolen = 160 * 1024 * 1024;
1064 case SNB_GMCH_GMS_STOLEN_192M:
1065 stolen = 192 * 1024 * 1024;
1067 case SNB_GMCH_GMS_STOLEN_224M:
1068 stolen = 224 * 1024 * 1024;
1070 case SNB_GMCH_GMS_STOLEN_256M:
1071 stolen = 256 * 1024 * 1024;
1073 case SNB_GMCH_GMS_STOLEN_288M:
1074 stolen = 288 * 1024 * 1024;
1076 case SNB_GMCH_GMS_STOLEN_320M:
1077 stolen = 320 * 1024 * 1024;
1079 case SNB_GMCH_GMS_STOLEN_352M:
1080 stolen = 352 * 1024 * 1024;
1082 case SNB_GMCH_GMS_STOLEN_384M:
1083 stolen = 384 * 1024 * 1024;
1085 case SNB_GMCH_GMS_STOLEN_416M:
1086 stolen = 416 * 1024 * 1024;
1088 case SNB_GMCH_GMS_STOLEN_448M:
1089 stolen = 448 * 1024 * 1024;
1091 case SNB_GMCH_GMS_STOLEN_480M:
1092 stolen = 480 * 1024 * 1024;
1094 case SNB_GMCH_GMS_STOLEN_512M:
1095 stolen = 512 * 1024 * 1024;
1098 DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
1099 tmp & SNB_GMCH_GMS_STOLEN_MASK);
1103 switch (tmp & INTEL_GMCH_GMS_MASK) {
1104 case INTEL_855_GMCH_GMS_DISABLED:
1105 DRM_ERROR("video memory is disabled\n");
1107 case INTEL_855_GMCH_GMS_STOLEN_1M:
1108 stolen = 1 * 1024 * 1024;
1110 case INTEL_855_GMCH_GMS_STOLEN_4M:
1111 stolen = 4 * 1024 * 1024;
1113 case INTEL_855_GMCH_GMS_STOLEN_8M:
1114 stolen = 8 * 1024 * 1024;
1116 case INTEL_855_GMCH_GMS_STOLEN_16M:
1117 stolen = 16 * 1024 * 1024;
1119 case INTEL_855_GMCH_GMS_STOLEN_32M:
1120 stolen = 32 * 1024 * 1024;
1122 case INTEL_915G_GMCH_GMS_STOLEN_48M:
1123 stolen = 48 * 1024 * 1024;
1125 case INTEL_915G_GMCH_GMS_STOLEN_64M:
1126 stolen = 64 * 1024 * 1024;
1128 case INTEL_GMCH_GMS_STOLEN_128M:
1129 stolen = 128 * 1024 * 1024;
1131 case INTEL_GMCH_GMS_STOLEN_256M:
1132 stolen = 256 * 1024 * 1024;
1134 case INTEL_GMCH_GMS_STOLEN_96M:
1135 stolen = 96 * 1024 * 1024;
1137 case INTEL_GMCH_GMS_STOLEN_160M:
1138 stolen = 160 * 1024 * 1024;
1140 case INTEL_GMCH_GMS_STOLEN_224M:
1141 stolen = 224 * 1024 * 1024;
1143 case INTEL_GMCH_GMS_STOLEN_352M:
1144 stolen = 352 * 1024 * 1024;
1147 DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
1148 tmp & INTEL_GMCH_GMS_MASK);
1153 *preallocated_size = stolen - overhead;
1158 #define PTE_ADDRESS_MASK 0xfffff000
1159 #define PTE_ADDRESS_MASK_HIGH 0x000000f0 /* i915+ */
1160 #define PTE_MAPPING_TYPE_UNCACHED (0 << 1)
1161 #define PTE_MAPPING_TYPE_DCACHE (1 << 1) /* i830 only */
1162 #define PTE_MAPPING_TYPE_CACHED (3 << 1)
1163 #define PTE_MAPPING_TYPE_MASK (3 << 1)
1164 #define PTE_VALID (1 << 0)
1167 * i915_gtt_to_phys - take a GTT address and turn it into a physical one
1169 * @gtt_addr: address to translate
1171 * Some chip functions require allocations from stolen space but need the
1172 * physical address of the memory in question. We use this routine
1173 * to get a physical address suitable for register programming from a given
1176 static unsigned long i915_gtt_to_phys(struct drm_device *dev,
1177 unsigned long gtt_addr)
1180 unsigned long entry, phys;
1181 int gtt_bar = IS_I9XX(dev) ? 0 : 1;
1182 int gtt_offset, gtt_size;
1184 if (IS_I965G(dev)) {
1185 if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
1186 gtt_offset = 2*1024*1024;
1187 gtt_size = 2*1024*1024;
1189 gtt_offset = 512*1024;
1190 gtt_size = 512*1024;
1195 gtt_size = pci_resource_len(dev->pdev, gtt_bar);
1198 gtt = ioremap_wc(pci_resource_start(dev->pdev, gtt_bar) + gtt_offset,
1201 DRM_ERROR("ioremap of GTT failed\n");
1205 entry = *(volatile u32 *)(gtt + (gtt_addr / 1024));
1207 DRM_DEBUG_DRIVER("GTT addr: 0x%08lx, PTE: 0x%08lx\n", gtt_addr, entry);
1209 /* Mask out these reserved bits on this hardware. */
1210 if (!IS_I9XX(dev) || IS_I915G(dev) || IS_I915GM(dev) ||
1211 IS_I945G(dev) || IS_I945GM(dev)) {
1212 entry &= ~PTE_ADDRESS_MASK_HIGH;
1215 /* If it's not a mapping type we know, then bail. */
1216 if ((entry & PTE_MAPPING_TYPE_MASK) != PTE_MAPPING_TYPE_UNCACHED &&
1217 (entry & PTE_MAPPING_TYPE_MASK) != PTE_MAPPING_TYPE_CACHED) {
1222 if (!(entry & PTE_VALID)) {
1223 DRM_ERROR("bad GTT entry in stolen space\n");
1230 phys =(entry & PTE_ADDRESS_MASK) |
1231 ((uint64_t)(entry & PTE_ADDRESS_MASK_HIGH) << (32 - 4));
1233 DRM_DEBUG_DRIVER("GTT addr: 0x%08lx, phys addr: 0x%08lx\n", gtt_addr, phys);
1238 static void i915_warn_stolen(struct drm_device *dev)
1240 DRM_ERROR("not enough stolen space for compressed buffer, disabling\n");
1241 DRM_ERROR("hint: you may be able to increase stolen memory size in the BIOS to avoid this\n");
1244 static void i915_setup_compression(struct drm_device *dev, int size)
1246 struct drm_i915_private *dev_priv = dev->dev_private;
1247 struct drm_mm_node *compressed_fb, *uninitialized_var(compressed_llb);
1248 unsigned long cfb_base;
1249 unsigned long ll_base = 0;
1251 /* Leave 1M for line length buffer & misc. */
1252 compressed_fb = drm_mm_search_free(&dev_priv->vram, size, 4096, 0);
1253 if (!compressed_fb) {
1254 dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
1255 i915_warn_stolen(dev);
1259 compressed_fb = drm_mm_get_block(compressed_fb, size, 4096);
1260 if (!compressed_fb) {
1261 i915_warn_stolen(dev);
1262 dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
1266 cfb_base = i915_gtt_to_phys(dev, compressed_fb->start);
1268 DRM_ERROR("failed to get stolen phys addr, disabling FBC\n");
1269 drm_mm_put_block(compressed_fb);
1272 if (!(IS_GM45(dev) || IS_IRONLAKE_M(dev))) {
1273 compressed_llb = drm_mm_search_free(&dev_priv->vram, 4096,
1275 if (!compressed_llb) {
1276 i915_warn_stolen(dev);
1280 compressed_llb = drm_mm_get_block(compressed_llb, 4096, 4096);
1281 if (!compressed_llb) {
1282 i915_warn_stolen(dev);
1286 ll_base = i915_gtt_to_phys(dev, compressed_llb->start);
1288 DRM_ERROR("failed to get stolen phys addr, disabling FBC\n");
1289 drm_mm_put_block(compressed_fb);
1290 drm_mm_put_block(compressed_llb);
1294 dev_priv->cfb_size = size;
1296 intel_disable_fbc(dev);
1297 dev_priv->compressed_fb = compressed_fb;
1298 if (IS_IRONLAKE_M(dev))
1299 I915_WRITE(ILK_DPFC_CB_BASE, compressed_fb->start);
1300 else if (IS_GM45(dev)) {
1301 I915_WRITE(DPFC_CB_BASE, compressed_fb->start);
1303 I915_WRITE(FBC_CFB_BASE, cfb_base);
1304 I915_WRITE(FBC_LL_BASE, ll_base);
1305 dev_priv->compressed_llb = compressed_llb;
1308 DRM_DEBUG_KMS("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n", cfb_base,
1309 ll_base, size >> 20);
1312 static void i915_cleanup_compression(struct drm_device *dev)
1314 struct drm_i915_private *dev_priv = dev->dev_private;
1316 drm_mm_put_block(dev_priv->compressed_fb);
1317 if (dev_priv->compressed_llb)
1318 drm_mm_put_block(dev_priv->compressed_llb);
1321 /* true = enable decode, false = disable decoder */
1322 static unsigned int i915_vga_set_decode(void *cookie, bool state)
1324 struct drm_device *dev = cookie;
1326 intel_modeset_vga_set_state(dev, state);
1328 return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
1329 VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1331 return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
1334 static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
1336 struct drm_device *dev = pci_get_drvdata(pdev);
1337 pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
1338 if (state == VGA_SWITCHEROO_ON) {
1339 printk(KERN_INFO "i915: switched on\n");
1340 /* i915 resume handler doesn't set to D0 */
1341 pci_set_power_state(dev->pdev, PCI_D0);
1343 drm_kms_helper_poll_enable(dev);
1345 printk(KERN_ERR "i915: switched off\n");
1346 drm_kms_helper_poll_disable(dev);
1347 i915_suspend(dev, pmm);
1351 static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
1353 struct drm_device *dev = pci_get_drvdata(pdev);
1356 spin_lock(&dev->count_lock);
1357 can_switch = (dev->open_count == 0);
1358 spin_unlock(&dev->count_lock);
1362 static int i915_load_modeset_init(struct drm_device *dev,
1363 unsigned long prealloc_size,
1364 unsigned long agp_size)
1366 struct drm_i915_private *dev_priv = dev->dev_private;
1369 /* Basic memrange allocator for stolen space (aka vram) */
1370 drm_mm_init(&dev_priv->vram, 0, prealloc_size);
1371 DRM_INFO("set up %ldM of stolen space\n", prealloc_size / (1024*1024));
1373 /* We're off and running w/KMS */
1374 dev_priv->mm.suspended = 0;
1376 /* Let GEM Manage from end of prealloc space to end of aperture.
1378 * However, leave one page at the end still bound to the scratch page.
1379 * There are a number of places where the hardware apparently
1380 * prefetches past the end of the object, and we've seen multiple
1381 * hangs with the GPU head pointer stuck in a batchbuffer bound
1382 * at the last page of the aperture. One page should be enough to
1383 * keep any prefetching inside of the aperture.
1385 i915_gem_do_init(dev, prealloc_size, agp_size - 4096);
1387 mutex_lock(&dev->struct_mutex);
1388 ret = i915_gem_init_ringbuffer(dev);
1389 mutex_unlock(&dev->struct_mutex);
1393 /* Try to set up FBC with a reasonable compressed buffer size */
1394 if (I915_HAS_FBC(dev) && i915_powersave) {
1397 /* Try to get an 8M buffer... */
1398 if (prealloc_size > (9*1024*1024))
1399 cfb_size = 8*1024*1024;
1400 else /* fall back to 7/8 of the stolen space */
1401 cfb_size = prealloc_size * 7 / 8;
1402 i915_setup_compression(dev, cfb_size);
1405 /* Allow hardware batchbuffers unless told otherwise.
1407 dev_priv->allow_batchbuffer = 1;
1409 ret = intel_init_bios(dev);
1411 DRM_INFO("failed to find VBIOS tables\n");
1413 /* if we have > 1 VGA cards, then disable the radeon VGA resources */
1414 ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode);
1416 goto cleanup_ringbuffer;
1418 ret = vga_switcheroo_register_client(dev->pdev,
1419 i915_switcheroo_set_state,
1420 i915_switcheroo_can_switch);
1422 goto cleanup_vga_client;
1424 /* IIR "flip pending" bit means done if this bit is set */
1425 if (IS_GEN3(dev) && (I915_READ(ECOSKPD) & ECO_FLIP_DONE))
1426 dev_priv->flip_pending_is_done = true;
1428 intel_modeset_init(dev);
1430 ret = drm_irq_install(dev);
1432 goto cleanup_vga_switcheroo;
1434 /* Always safe in the mode setting case. */
1435 /* FIXME: do pre/post-mode set stuff in core KMS code */
1436 dev->vblank_disable_allowed = 1;
1438 ret = intel_fbdev_init(dev);
1442 drm_kms_helper_poll_init(dev);
1446 drm_irq_uninstall(dev);
1447 cleanup_vga_switcheroo:
1448 vga_switcheroo_unregister_client(dev->pdev);
1450 vga_client_register(dev->pdev, NULL, NULL, NULL);
1452 mutex_lock(&dev->struct_mutex);
1453 i915_gem_cleanup_ringbuffer(dev);
1454 mutex_unlock(&dev->struct_mutex);
1459 int i915_master_create(struct drm_device *dev, struct drm_master *master)
1461 struct drm_i915_master_private *master_priv;
1463 master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
1467 master->driver_priv = master_priv;
1471 void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
1473 struct drm_i915_master_private *master_priv = master->driver_priv;
1480 master->driver_priv = NULL;
1483 static void i915_pineview_get_mem_freq(struct drm_device *dev)
1485 drm_i915_private_t *dev_priv = dev->dev_private;
1488 tmp = I915_READ(CLKCFG);
1490 switch (tmp & CLKCFG_FSB_MASK) {
1491 case CLKCFG_FSB_533:
1492 dev_priv->fsb_freq = 533; /* 133*4 */
1494 case CLKCFG_FSB_800:
1495 dev_priv->fsb_freq = 800; /* 200*4 */
1497 case CLKCFG_FSB_667:
1498 dev_priv->fsb_freq = 667; /* 167*4 */
1500 case CLKCFG_FSB_400:
1501 dev_priv->fsb_freq = 400; /* 100*4 */
1505 switch (tmp & CLKCFG_MEM_MASK) {
1506 case CLKCFG_MEM_533:
1507 dev_priv->mem_freq = 533;
1509 case CLKCFG_MEM_667:
1510 dev_priv->mem_freq = 667;
1512 case CLKCFG_MEM_800:
1513 dev_priv->mem_freq = 800;
1517 /* detect pineview DDR3 setting */
1518 tmp = I915_READ(CSHRDDR3CTL);
1519 dev_priv->is_ddr3 = (tmp & CSHRDDR3CTL_DDR3) ? 1 : 0;
1522 static void i915_ironlake_get_mem_freq(struct drm_device *dev)
1524 drm_i915_private_t *dev_priv = dev->dev_private;
1527 ddrpll = I915_READ16(DDRMPLL1);
1528 csipll = I915_READ16(CSIPLL0);
1530 switch (ddrpll & 0xff) {
1532 dev_priv->mem_freq = 800;
1535 dev_priv->mem_freq = 1066;
1538 dev_priv->mem_freq = 1333;
1541 dev_priv->mem_freq = 1600;
1544 DRM_DEBUG_DRIVER("unknown memory frequency 0x%02x\n",
1546 dev_priv->mem_freq = 0;
1550 dev_priv->r_t = dev_priv->mem_freq;
1552 switch (csipll & 0x3ff) {
1554 dev_priv->fsb_freq = 3200;
1557 dev_priv->fsb_freq = 3733;
1560 dev_priv->fsb_freq = 4266;
1563 dev_priv->fsb_freq = 4800;
1566 dev_priv->fsb_freq = 5333;
1569 dev_priv->fsb_freq = 5866;
1572 dev_priv->fsb_freq = 6400;
1575 DRM_DEBUG_DRIVER("unknown fsb frequency 0x%04x\n",
1577 dev_priv->fsb_freq = 0;
1581 if (dev_priv->fsb_freq == 3200) {
1583 } else if (dev_priv->fsb_freq > 3200 && dev_priv->fsb_freq <= 4800) {
1592 unsigned long vd; /* in .1 mil */
1593 unsigned long vm; /* in .1 mil */
1597 static struct v_table v_table[] = {
1598 { 0, 16125, 15000, 0x7f, },
1599 { 1, 16000, 14875, 0x7e, },
1600 { 2, 15875, 14750, 0x7d, },
1601 { 3, 15750, 14625, 0x7c, },
1602 { 4, 15625, 14500, 0x7b, },
1603 { 5, 15500, 14375, 0x7a, },
1604 { 6, 15375, 14250, 0x79, },
1605 { 7, 15250, 14125, 0x78, },
1606 { 8, 15125, 14000, 0x77, },
1607 { 9, 15000, 13875, 0x76, },
1608 { 10, 14875, 13750, 0x75, },
1609 { 11, 14750, 13625, 0x74, },
1610 { 12, 14625, 13500, 0x73, },
1611 { 13, 14500, 13375, 0x72, },
1612 { 14, 14375, 13250, 0x71, },
1613 { 15, 14250, 13125, 0x70, },
1614 { 16, 14125, 13000, 0x6f, },
1615 { 17, 14000, 12875, 0x6e, },
1616 { 18, 13875, 12750, 0x6d, },
1617 { 19, 13750, 12625, 0x6c, },
1618 { 20, 13625, 12500, 0x6b, },
1619 { 21, 13500, 12375, 0x6a, },
1620 { 22, 13375, 12250, 0x69, },
1621 { 23, 13250, 12125, 0x68, },
1622 { 24, 13125, 12000, 0x67, },
1623 { 25, 13000, 11875, 0x66, },
1624 { 26, 12875, 11750, 0x65, },
1625 { 27, 12750, 11625, 0x64, },
1626 { 28, 12625, 11500, 0x63, },
1627 { 29, 12500, 11375, 0x62, },
1628 { 30, 12375, 11250, 0x61, },
1629 { 31, 12250, 11125, 0x60, },
1630 { 32, 12125, 11000, 0x5f, },
1631 { 33, 12000, 10875, 0x5e, },
1632 { 34, 11875, 10750, 0x5d, },
1633 { 35, 11750, 10625, 0x5c, },
1634 { 36, 11625, 10500, 0x5b, },
1635 { 37, 11500, 10375, 0x5a, },
1636 { 38, 11375, 10250, 0x59, },
1637 { 39, 11250, 10125, 0x58, },
1638 { 40, 11125, 10000, 0x57, },
1639 { 41, 11000, 9875, 0x56, },
1640 { 42, 10875, 9750, 0x55, },
1641 { 43, 10750, 9625, 0x54, },
1642 { 44, 10625, 9500, 0x53, },
1643 { 45, 10500, 9375, 0x52, },
1644 { 46, 10375, 9250, 0x51, },
1645 { 47, 10250, 9125, 0x50, },
1646 { 48, 10125, 9000, 0x4f, },
1647 { 49, 10000, 8875, 0x4e, },
1648 { 50, 9875, 8750, 0x4d, },
1649 { 51, 9750, 8625, 0x4c, },
1650 { 52, 9625, 8500, 0x4b, },
1651 { 53, 9500, 8375, 0x4a, },
1652 { 54, 9375, 8250, 0x49, },
1653 { 55, 9250, 8125, 0x48, },
1654 { 56, 9125, 8000, 0x47, },
1655 { 57, 9000, 7875, 0x46, },
1656 { 58, 8875, 7750, 0x45, },
1657 { 59, 8750, 7625, 0x44, },
1658 { 60, 8625, 7500, 0x43, },
1659 { 61, 8500, 7375, 0x42, },
1660 { 62, 8375, 7250, 0x41, },
1661 { 63, 8250, 7125, 0x40, },
1662 { 64, 8125, 7000, 0x3f, },
1663 { 65, 8000, 6875, 0x3e, },
1664 { 66, 7875, 6750, 0x3d, },
1665 { 67, 7750, 6625, 0x3c, },
1666 { 68, 7625, 6500, 0x3b, },
1667 { 69, 7500, 6375, 0x3a, },
1668 { 70, 7375, 6250, 0x39, },
1669 { 71, 7250, 6125, 0x38, },
1670 { 72, 7125, 6000, 0x37, },
1671 { 73, 7000, 5875, 0x36, },
1672 { 74, 6875, 5750, 0x35, },
1673 { 75, 6750, 5625, 0x34, },
1674 { 76, 6625, 5500, 0x33, },
1675 { 77, 6500, 5375, 0x32, },
1676 { 78, 6375, 5250, 0x31, },
1677 { 79, 6250, 5125, 0x30, },
1678 { 80, 6125, 5000, 0x2f, },
1679 { 81, 6000, 4875, 0x2e, },
1680 { 82, 5875, 4750, 0x2d, },
1681 { 83, 5750, 4625, 0x2c, },
1682 { 84, 5625, 4500, 0x2b, },
1683 { 85, 5500, 4375, 0x2a, },
1684 { 86, 5375, 4250, 0x29, },
1685 { 87, 5250, 4125, 0x28, },
1686 { 88, 5125, 4000, 0x27, },
1687 { 89, 5000, 3875, 0x26, },
1688 { 90, 4875, 3750, 0x25, },
1689 { 91, 4750, 3625, 0x24, },
1690 { 92, 4625, 3500, 0x23, },
1691 { 93, 4500, 3375, 0x22, },
1692 { 94, 4375, 3250, 0x21, },
1693 { 95, 4250, 3125, 0x20, },
1694 { 96, 4125, 3000, 0x1f, },
1695 { 97, 4125, 3000, 0x1e, },
1696 { 98, 4125, 3000, 0x1d, },
1697 { 99, 4125, 3000, 0x1c, },
1698 { 100, 4125, 3000, 0x1b, },
1699 { 101, 4125, 3000, 0x1a, },
1700 { 102, 4125, 3000, 0x19, },
1701 { 103, 4125, 3000, 0x18, },
1702 { 104, 4125, 3000, 0x17, },
1703 { 105, 4125, 3000, 0x16, },
1704 { 106, 4125, 3000, 0x15, },
1705 { 107, 4125, 3000, 0x14, },
1706 { 108, 4125, 3000, 0x13, },
1707 { 109, 4125, 3000, 0x12, },
1708 { 110, 4125, 3000, 0x11, },
1709 { 111, 4125, 3000, 0x10, },
1710 { 112, 4125, 3000, 0x0f, },
1711 { 113, 4125, 3000, 0x0e, },
1712 { 114, 4125, 3000, 0x0d, },
1713 { 115, 4125, 3000, 0x0c, },
1714 { 116, 4125, 3000, 0x0b, },
1715 { 117, 4125, 3000, 0x0a, },
1716 { 118, 4125, 3000, 0x09, },
1717 { 119, 4125, 3000, 0x08, },
1718 { 120, 1125, 0, 0x07, },
1719 { 121, 1000, 0, 0x06, },
1720 { 122, 875, 0, 0x05, },
1721 { 123, 750, 0, 0x04, },
1722 { 124, 625, 0, 0x03, },
1723 { 125, 500, 0, 0x02, },
1724 { 126, 375, 0, 0x01, },
1725 { 127, 0, 0, 0x00, },
1735 static struct cparams cparams[] = {
1736 { 1, 1333, 301, 28664 },
1737 { 1, 1066, 294, 24460 },
1738 { 1, 800, 294, 25192 },
1739 { 0, 1333, 276, 27605 },
1740 { 0, 1066, 276, 27605 },
1741 { 0, 800, 231, 23784 },
1744 unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
1746 u64 total_count, diff, ret;
1747 u32 count1, count2, count3, m = 0, c = 0;
1748 unsigned long now = jiffies_to_msecs(jiffies), diff1;
1751 diff1 = now - dev_priv->last_time1;
1753 count1 = I915_READ(DMIEC);
1754 count2 = I915_READ(DDREC);
1755 count3 = I915_READ(CSIEC);
1757 total_count = count1 + count2 + count3;
1759 /* FIXME: handle per-counter overflow */
1760 if (total_count < dev_priv->last_count1) {
1761 diff = ~0UL - dev_priv->last_count1;
1762 diff += total_count;
1764 diff = total_count - dev_priv->last_count1;
1767 for (i = 0; i < ARRAY_SIZE(cparams); i++) {
1768 if (cparams[i].i == dev_priv->c_m &&
1769 cparams[i].t == dev_priv->r_t) {
1776 div_u64(diff, diff1);
1777 ret = ((m * diff) + c);
1780 dev_priv->last_count1 = total_count;
1781 dev_priv->last_time1 = now;
1786 unsigned long i915_mch_val(struct drm_i915_private *dev_priv)
1788 unsigned long m, x, b;
1791 tsfs = I915_READ(TSFS);
1793 m = ((tsfs & TSFS_SLOPE_MASK) >> TSFS_SLOPE_SHIFT);
1794 x = I915_READ8(TR1);
1796 b = tsfs & TSFS_INTR_MASK;
1798 return ((m * x) / 127) - b;
1801 static unsigned long pvid_to_extvid(struct drm_i915_private *dev_priv, u8 pxvid)
1803 unsigned long val = 0;
1806 for (i = 0; i < ARRAY_SIZE(v_table); i++) {
1807 if (v_table[i].pvid == pxvid) {
1808 if (IS_MOBILE(dev_priv->dev))
1809 val = v_table[i].vm;
1811 val = v_table[i].vd;
1818 void i915_update_gfx_val(struct drm_i915_private *dev_priv)
1820 struct timespec now, diff1;
1822 unsigned long diffms;
1825 getrawmonotonic(&now);
1826 diff1 = timespec_sub(now, dev_priv->last_time2);
1828 /* Don't divide by 0 */
1829 diffms = diff1.tv_sec * 1000 + diff1.tv_nsec / 1000000;
1833 count = I915_READ(GFXEC);
1835 if (count < dev_priv->last_count2) {
1836 diff = ~0UL - dev_priv->last_count2;
1839 diff = count - dev_priv->last_count2;
1842 dev_priv->last_count2 = count;
1843 dev_priv->last_time2 = now;
1845 /* More magic constants... */
1847 div_u64(diff, diffms * 10);
1848 dev_priv->gfx_power = diff;
1851 unsigned long i915_gfx_val(struct drm_i915_private *dev_priv)
1853 unsigned long t, corr, state1, corr2, state2;
1856 pxvid = I915_READ(PXVFREQ_BASE + (dev_priv->cur_delay * 4));
1857 pxvid = (pxvid >> 24) & 0x7f;
1858 ext_v = pvid_to_extvid(dev_priv, pxvid);
1862 t = i915_mch_val(dev_priv);
1864 /* Revel in the empirically derived constants */
1866 /* Correction factor in 1/100000 units */
1868 corr = ((t * 2349) + 135940);
1870 corr = ((t * 964) + 29317);
1872 corr = ((t * 301) + 1004);
1874 corr = corr * ((150142 * state1) / 10000 - 78642);
1876 corr2 = (corr * dev_priv->corr);
1878 state2 = (corr2 * state1) / 10000;
1879 state2 /= 100; /* convert to mW */
1881 i915_update_gfx_val(dev_priv);
1883 return dev_priv->gfx_power + state2;
1886 /* Global for IPS driver to get at the current i915 device */
1887 static struct drm_i915_private *i915_mch_dev;
1889 * Lock protecting IPS related data structures
1891 * - dev_priv->max_delay
1892 * - dev_priv->min_delay
1894 * - dev_priv->gpu_busy
1896 static DEFINE_SPINLOCK(mchdev_lock);
1899 * i915_read_mch_val - return value for IPS use
1901 * Calculate and return a value for the IPS driver to use when deciding whether
1902 * we have thermal and power headroom to increase CPU or GPU power budget.
1904 unsigned long i915_read_mch_val(void)
1906 struct drm_i915_private *dev_priv;
1907 unsigned long chipset_val, graphics_val, ret = 0;
1909 spin_lock(&mchdev_lock);
1912 dev_priv = i915_mch_dev;
1914 chipset_val = i915_chipset_val(dev_priv);
1915 graphics_val = i915_gfx_val(dev_priv);
1917 ret = chipset_val + graphics_val;
1920 spin_unlock(&mchdev_lock);
1924 EXPORT_SYMBOL_GPL(i915_read_mch_val);
1927 * i915_gpu_raise - raise GPU frequency limit
1929 * Raise the limit; IPS indicates we have thermal headroom.
1931 bool i915_gpu_raise(void)
1933 struct drm_i915_private *dev_priv;
1936 spin_lock(&mchdev_lock);
1937 if (!i915_mch_dev) {
1941 dev_priv = i915_mch_dev;
1943 if (dev_priv->max_delay > dev_priv->fmax)
1944 dev_priv->max_delay--;
1947 spin_unlock(&mchdev_lock);
1951 EXPORT_SYMBOL_GPL(i915_gpu_raise);
1954 * i915_gpu_lower - lower GPU frequency limit
1956 * IPS indicates we're close to a thermal limit, so throttle back the GPU
1957 * frequency maximum.
1959 bool i915_gpu_lower(void)
1961 struct drm_i915_private *dev_priv;
1964 spin_lock(&mchdev_lock);
1965 if (!i915_mch_dev) {
1969 dev_priv = i915_mch_dev;
1971 if (dev_priv->max_delay < dev_priv->min_delay)
1972 dev_priv->max_delay++;
1975 spin_unlock(&mchdev_lock);
1979 EXPORT_SYMBOL_GPL(i915_gpu_lower);
1982 * i915_gpu_busy - indicate GPU business to IPS
1984 * Tell the IPS driver whether or not the GPU is busy.
1986 bool i915_gpu_busy(void)
1988 struct drm_i915_private *dev_priv;
1991 spin_lock(&mchdev_lock);
1994 dev_priv = i915_mch_dev;
1996 ret = dev_priv->busy;
1999 spin_unlock(&mchdev_lock);
2003 EXPORT_SYMBOL_GPL(i915_gpu_busy);
2006 * i915_gpu_turbo_disable - disable graphics turbo
2008 * Disable graphics turbo by resetting the max frequency and setting the
2009 * current frequency to the default.
2011 bool i915_gpu_turbo_disable(void)
2013 struct drm_i915_private *dev_priv;
2016 spin_lock(&mchdev_lock);
2017 if (!i915_mch_dev) {
2021 dev_priv = i915_mch_dev;
2023 dev_priv->max_delay = dev_priv->fstart;
2025 if (!ironlake_set_drps(dev_priv->dev, dev_priv->fstart))
2029 spin_unlock(&mchdev_lock);
2033 EXPORT_SYMBOL_GPL(i915_gpu_turbo_disable);
2036 * i915_driver_load - setup chip and create an initial config
2038 * @flags: startup flags
2040 * The driver load routine has to do several things:
2041 * - drive output discovery via intel_modeset_init()
2042 * - initialize the memory manager
2043 * - allocate initial config memory
2044 * - setup the DRM framebuffer with the allocated memory
2046 int i915_driver_load(struct drm_device *dev, unsigned long flags)
2048 struct drm_i915_private *dev_priv;
2049 resource_size_t base, size;
2050 int ret = 0, mmio_bar;
2051 uint32_t agp_size, prealloc_size;
2052 /* i915 has 4 more counters */
2054 dev->types[6] = _DRM_STAT_IRQ;
2055 dev->types[7] = _DRM_STAT_PRIMARY;
2056 dev->types[8] = _DRM_STAT_SECONDARY;
2057 dev->types[9] = _DRM_STAT_DMA;
2059 dev_priv = kzalloc(sizeof(drm_i915_private_t), GFP_KERNEL);
2060 if (dev_priv == NULL)
2063 dev->dev_private = (void *)dev_priv;
2064 dev_priv->dev = dev;
2065 dev_priv->info = (struct intel_device_info *) flags;
2067 /* Add register map (needed for suspend/resume) */
2068 mmio_bar = IS_I9XX(dev) ? 0 : 1;
2069 base = pci_resource_start(dev->pdev, mmio_bar);
2070 size = pci_resource_len(dev->pdev, mmio_bar);
2072 if (i915_get_bridge_dev(dev)) {
2077 /* overlay on gen2 is broken and can't address above 1G */
2079 dma_set_coherent_mask(&dev->pdev->dev, DMA_BIT_MASK(30));
2081 dev_priv->regs = ioremap(base, size);
2082 if (!dev_priv->regs) {
2083 DRM_ERROR("failed to map registers\n");
2088 dev_priv->mm.gtt_mapping =
2089 io_mapping_create_wc(dev->agp->base,
2090 dev->agp->agp_info.aper_size * 1024*1024);
2091 if (dev_priv->mm.gtt_mapping == NULL) {
2096 /* Set up a WC MTRR for non-PAT systems. This is more common than
2097 * one would think, because the kernel disables PAT on first
2098 * generation Core chips because WC PAT gets overridden by a UC
2099 * MTRR if present. Even if a UC MTRR isn't present.
2101 dev_priv->mm.gtt_mtrr = mtrr_add(dev->agp->base,
2102 dev->agp->agp_info.aper_size *
2104 MTRR_TYPE_WRCOMB, 1);
2105 if (dev_priv->mm.gtt_mtrr < 0) {
2106 DRM_INFO("MTRR allocation failed. Graphics "
2107 "performance may suffer.\n");
2110 ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
2114 if (prealloc_size > intel_max_stolen) {
2115 DRM_INFO("detected %dM stolen memory, trimming to %dM\n",
2116 prealloc_size >> 20, intel_max_stolen >> 20);
2117 prealloc_size = intel_max_stolen;
2120 dev_priv->wq = create_singlethread_workqueue("i915");
2121 if (dev_priv->wq == NULL) {
2122 DRM_ERROR("Failed to create our workqueue.\n");
2127 /* enable GEM by default */
2128 dev_priv->has_gem = 1;
2130 if (prealloc_size > agp_size * 3 / 4) {
2131 DRM_ERROR("Detected broken video BIOS with %d/%dkB of video "
2133 prealloc_size / 1024, agp_size / 1024);
2134 DRM_ERROR("Disabling GEM. (try reducing stolen memory or "
2135 "updating the BIOS to fix).\n");
2136 dev_priv->has_gem = 0;
2139 if (dev_priv->has_gem == 0 &&
2140 drm_core_check_feature(dev, DRIVER_MODESET)) {
2141 DRM_ERROR("kernel modesetting requires GEM, disabling driver.\n");
2146 dev->driver->get_vblank_counter = i915_get_vblank_counter;
2147 dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
2148 if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
2149 dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */
2150 dev->driver->get_vblank_counter = gm45_get_vblank_counter;
2153 /* Try to make sure MCHBAR is enabled before poking at it */
2154 intel_setup_mchbar(dev);
2155 intel_opregion_setup(dev);
2160 if (!I915_NEED_GFX_HWS(dev)) {
2161 ret = i915_init_phys_hws(dev);
2163 goto out_workqueue_free;
2166 if (IS_PINEVIEW(dev))
2167 i915_pineview_get_mem_freq(dev);
2168 else if (IS_IRONLAKE(dev))
2169 i915_ironlake_get_mem_freq(dev);
2171 /* On the 945G/GM, the chipset reports the MSI capability on the
2172 * integrated graphics even though the support isn't actually there
2173 * according to the published specs. It doesn't appear to function
2174 * correctly in testing on 945G.
2175 * This may be a side effect of MSI having been made available for PEG
2176 * and the registers being closely associated.
2178 * According to chipset errata, on the 965GM, MSI interrupts may
2179 * be lost or delayed, but we use them anyways to avoid
2180 * stuck interrupts on some machines.
2182 if (!IS_I945G(dev) && !IS_I945GM(dev))
2183 pci_enable_msi(dev->pdev);
2185 spin_lock_init(&dev_priv->user_irq_lock);
2186 spin_lock_init(&dev_priv->error_lock);
2187 dev_priv->trace_irq_seqno = 0;
2189 ret = drm_vblank_init(dev, I915_NUM_PIPE);
2192 (void) i915_driver_unload(dev);
2196 /* Start out suspended */
2197 dev_priv->mm.suspended = 1;
2199 intel_detect_pch(dev);
2201 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
2202 ret = i915_load_modeset_init(dev, prealloc_size, agp_size);
2204 DRM_ERROR("failed to init modeset\n");
2205 goto out_workqueue_free;
2209 /* Must be done after probing outputs */
2210 intel_opregion_init(dev);
2211 acpi_video_register();
2213 setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
2214 (unsigned long) dev);
2216 spin_lock(&mchdev_lock);
2217 i915_mch_dev = dev_priv;
2218 dev_priv->mchdev_lock = &mchdev_lock;
2219 spin_unlock(&mchdev_lock);
2224 destroy_workqueue(dev_priv->wq);
2226 io_mapping_free(dev_priv->mm.gtt_mapping);
2228 iounmap(dev_priv->regs);
2230 pci_dev_put(dev_priv->bridge_dev);
2236 int i915_driver_unload(struct drm_device *dev)
2238 struct drm_i915_private *dev_priv = dev->dev_private;
2241 spin_lock(&mchdev_lock);
2242 i915_mch_dev = NULL;
2243 spin_unlock(&mchdev_lock);
2245 mutex_lock(&dev->struct_mutex);
2246 ret = i915_gpu_idle(dev);
2248 DRM_ERROR("failed to idle hardware: %d\n", ret);
2249 mutex_unlock(&dev->struct_mutex);
2251 /* Cancel the retire work handler, which should be idle now. */
2252 cancel_delayed_work_sync(&dev_priv->mm.retire_work);
2254 io_mapping_free(dev_priv->mm.gtt_mapping);
2255 if (dev_priv->mm.gtt_mtrr >= 0) {
2256 mtrr_del(dev_priv->mm.gtt_mtrr, dev->agp->base,
2257 dev->agp->agp_info.aper_size * 1024 * 1024);
2258 dev_priv->mm.gtt_mtrr = -1;
2261 acpi_video_unregister();
2263 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
2264 intel_modeset_cleanup(dev);
2267 * free the memory space allocated for the child device
2268 * config parsed from VBT
2270 if (dev_priv->child_dev && dev_priv->child_dev_num) {
2271 kfree(dev_priv->child_dev);
2272 dev_priv->child_dev = NULL;
2273 dev_priv->child_dev_num = 0;
2276 vga_switcheroo_unregister_client(dev->pdev);
2277 vga_client_register(dev->pdev, NULL, NULL, NULL);
2280 /* Free error state after interrupts are fully disabled. */
2281 del_timer_sync(&dev_priv->hangcheck_timer);
2282 cancel_work_sync(&dev_priv->error_work);
2283 i915_destroy_error_state(dev);
2285 if (dev->pdev->msi_enabled)
2286 pci_disable_msi(dev->pdev);
2288 if (dev_priv->regs != NULL)
2289 iounmap(dev_priv->regs);
2291 intel_opregion_fini(dev);
2293 if (drm_core_check_feature(dev, DRIVER_MODESET)) {
2294 /* Flush any outstanding unpin_work. */
2295 flush_workqueue(dev_priv->wq);
2297 i915_gem_free_all_phys_object(dev);
2299 mutex_lock(&dev->struct_mutex);
2300 i915_gem_cleanup_ringbuffer(dev);
2301 mutex_unlock(&dev->struct_mutex);
2302 if (I915_HAS_FBC(dev) && i915_powersave)
2303 i915_cleanup_compression(dev);
2304 drm_mm_takedown(&dev_priv->vram);
2306 intel_cleanup_overlay(dev);
2309 intel_teardown_mchbar(dev);
2311 destroy_workqueue(dev_priv->wq);
2313 pci_dev_put(dev_priv->bridge_dev);
2314 kfree(dev->dev_private);
2319 int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
2321 struct drm_i915_file_private *i915_file_priv;
2323 DRM_DEBUG_DRIVER("\n");
2324 i915_file_priv = (struct drm_i915_file_private *)
2325 kmalloc(sizeof(*i915_file_priv), GFP_KERNEL);
2327 if (!i915_file_priv)
2330 file_priv->driver_priv = i915_file_priv;
2332 INIT_LIST_HEAD(&i915_file_priv->mm.request_list);
2338 * i915_driver_lastclose - clean up after all DRM clients have exited
2341 * Take care of cleaning up after all DRM clients have exited. In the
2342 * mode setting case, we want to restore the kernel's initial mode (just
2343 * in case the last client left us in a bad state).
2345 * Additionally, in the non-mode setting case, we'll tear down the AGP
2346 * and DMA structures, since the kernel won't be using them, and clea
2349 void i915_driver_lastclose(struct drm_device * dev)
2351 drm_i915_private_t *dev_priv = dev->dev_private;
2353 if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
2354 drm_fb_helper_restore();
2355 vga_switcheroo_process_delayed_switch();
2359 i915_gem_lastclose(dev);
2361 if (dev_priv->agp_heap)
2362 i915_mem_takedown(&(dev_priv->agp_heap));
2364 i915_dma_cleanup(dev);
2367 void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
2369 drm_i915_private_t *dev_priv = dev->dev_private;
2370 i915_gem_release(dev, file_priv);
2371 if (!drm_core_check_feature(dev, DRIVER_MODESET))
2372 i915_mem_release(dev, file_priv, dev_priv->agp_heap);
2375 void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv)
2377 struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv;
2379 kfree(i915_file_priv);
2382 struct drm_ioctl_desc i915_ioctls[] = {
2383 DRM_IOCTL_DEF_DRV(I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
2384 DRM_IOCTL_DEF_DRV(I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
2385 DRM_IOCTL_DEF_DRV(I915_FLIP, i915_flip_bufs, DRM_AUTH),
2386 DRM_IOCTL_DEF_DRV(I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
2387 DRM_IOCTL_DEF_DRV(I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
2388 DRM_IOCTL_DEF_DRV(I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
2389 DRM_IOCTL_DEF_DRV(I915_GETPARAM, i915_getparam, DRM_AUTH),
2390 DRM_IOCTL_DEF_DRV(I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
2391 DRM_IOCTL_DEF_DRV(I915_ALLOC, i915_mem_alloc, DRM_AUTH),
2392 DRM_IOCTL_DEF_DRV(I915_FREE, i915_mem_free, DRM_AUTH),
2393 DRM_IOCTL_DEF_DRV(I915_INIT_HEAP, i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
2394 DRM_IOCTL_DEF_DRV(I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
2395 DRM_IOCTL_DEF_DRV(I915_DESTROY_HEAP, i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
2396 DRM_IOCTL_DEF_DRV(I915_SET_VBLANK_PIPE, i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
2397 DRM_IOCTL_DEF_DRV(I915_GET_VBLANK_PIPE, i915_vblank_pipe_get, DRM_AUTH),
2398 DRM_IOCTL_DEF_DRV(I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
2399 DRM_IOCTL_DEF_DRV(I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
2400 DRM_IOCTL_DEF_DRV(I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
2401 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH|DRM_UNLOCKED),
2402 DRM_IOCTL_DEF_DRV(I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH|DRM_UNLOCKED),
2403 DRM_IOCTL_DEF_DRV(I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
2404 DRM_IOCTL_DEF_DRV(I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
2405 DRM_IOCTL_DEF_DRV(I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
2406 DRM_IOCTL_DEF_DRV(I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH|DRM_UNLOCKED),
2407 DRM_IOCTL_DEF_DRV(I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
2408 DRM_IOCTL_DEF_DRV(I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
2409 DRM_IOCTL_DEF_DRV(I915_GEM_CREATE, i915_gem_create_ioctl, DRM_UNLOCKED),
2410 DRM_IOCTL_DEF_DRV(I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_UNLOCKED),
2411 DRM_IOCTL_DEF_DRV(I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_UNLOCKED),
2412 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_UNLOCKED),
2413 DRM_IOCTL_DEF_DRV(I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_UNLOCKED),
2414 DRM_IOCTL_DEF_DRV(I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_UNLOCKED),
2415 DRM_IOCTL_DEF_DRV(I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_UNLOCKED),
2416 DRM_IOCTL_DEF_DRV(I915_GEM_SET_TILING, i915_gem_set_tiling, DRM_UNLOCKED),
2417 DRM_IOCTL_DEF_DRV(I915_GEM_GET_TILING, i915_gem_get_tiling, DRM_UNLOCKED),
2418 DRM_IOCTL_DEF_DRV(I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_UNLOCKED),
2419 DRM_IOCTL_DEF_DRV(I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, DRM_UNLOCKED),
2420 DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED),
2421 DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
2422 DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
2425 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
2428 * Determine if the device really is AGP or not.
2430 * All Intel graphics chipsets are treated as AGP, even if they are really
2433 * \param dev The device to be tested.
2436 * A value of 1 is always retured to indictate every i9x5 is AGP.
2438 int i915_driver_device_is_agp(struct drm_device * dev)