i915_dma.c 34.5 KB
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/* i915_dma.c -- DMA support for the I915 -*- linux-c -*-
 */
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/*
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 * Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
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 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the
 * "Software"), to deal in the Software without restriction, including
 * without limitation the rights to use, copy, modify, merge, publish,
 * distribute, sub license, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so, subject to
 * the following conditions:
 *
 * The above copyright notice and this permission notice (including the
 * next paragraph) shall be included in all copies or substantial portions
 * of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
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 */
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#include "drmP.h"
#include "drm.h"
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#include "drm_crtc_helper.h"
#include "intel_drv.h"
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#include "i915_drm.h"
#include "i915_drv.h"

/* Really want an OS-independent resettable timer.  Would like to have
 * this loop run for (eg) 3 sec, but have the timer reset every time
 * the head pointer changes, so that EBUSY only happens if the ring
 * actually stalls for (eg) 3 seconds.
 */
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int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
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	drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
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	u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD;
	u32 last_acthd = I915_READ(acthd_reg);
	u32 acthd;
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	u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
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	int i;

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	for (i = 0; i < 100000; i++) {
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		ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
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		acthd = I915_READ(acthd_reg);
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		ring->space = ring->head - (ring->tail + 8);
		if (ring->space < 0)
			ring->space += ring->Size;
		if (ring->space >= n)
			return 0;

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		if (master_priv->sarea_priv)
			master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
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		if (ring->head != last_head)
			i = 0;
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		if (acthd != last_acthd)
			i = 0;
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		last_head = ring->head;
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		last_acthd = acthd;
		msleep_interruptible(10);

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	}

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	return -EBUSY;
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}

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/**
 * Sets up the hardware status page for devices that need a physical address
 * in the register.
 */
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static int i915_init_phys_hws(struct drm_device *dev)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
	/* Program Hardware Status Page */
	dev_priv->status_page_dmah =
		drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE, 0xffffffff);

	if (!dev_priv->status_page_dmah) {
		DRM_ERROR("Can not allocate hardware status page\n");
		return -ENOMEM;
	}
	dev_priv->hw_status_page = dev_priv->status_page_dmah->vaddr;
	dev_priv->dma_status_page = dev_priv->status_page_dmah->busaddr;

	memset(dev_priv->hw_status_page, 0, PAGE_SIZE);

	I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
	DRM_DEBUG("Enabled hardware status page\n");
	return 0;
}

/**
 * Frees the hardware status page, whether it's a physical address or a virtual
 * address set up by the X Server.
 */
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static void i915_free_hws(struct drm_device *dev)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
	if (dev_priv->status_page_dmah) {
		drm_pci_free(dev, dev_priv->status_page_dmah);
		dev_priv->status_page_dmah = NULL;
	}

	if (dev_priv->status_gfx_addr) {
		dev_priv->status_gfx_addr = 0;
		drm_core_ioremapfree(&dev_priv->hws_map, dev);
	}

	/* Need to rewrite hardware status page */
	I915_WRITE(HWS_PGA, 0x1ffff000);
}

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void i915_kernel_lost_context(struct drm_device * dev)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_i915_master_private *master_priv;
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	drm_i915_ring_buffer_t *ring = &(dev_priv->ring);

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	/*
	 * We should never lose context on the ring with modesetting
	 * as we don't expose it to userspace
	 */
	if (drm_core_check_feature(dev, DRIVER_MODESET))
		return;

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	ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
	ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
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	ring->space = ring->head - (ring->tail + 8);
	if (ring->space < 0)
		ring->space += ring->Size;

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	if (!dev->primary->master)
		return;

	master_priv = dev->primary->master->driver_priv;
	if (ring->head == ring->tail && master_priv->sarea_priv)
		master_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
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}

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static int i915_dma_cleanup(struct drm_device * dev)
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{
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	drm_i915_private_t *dev_priv = dev->dev_private;
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	/* Make sure interrupts are disabled here because the uninstall ioctl
	 * may not have been called from userspace and after dev_private
	 * is freed, it's too late.
	 */
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	if (dev->irq_enabled)
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		drm_irq_uninstall(dev);
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	if (dev_priv->ring.virtual_start) {
		drm_core_ioremapfree(&dev_priv->ring.map, dev);
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		dev_priv->ring.virtual_start = NULL;
		dev_priv->ring.map.handle = NULL;
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		dev_priv->ring.map.size = 0;
	}
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	/* Clear the HWS virtual address at teardown */
	if (I915_NEED_GFX_HWS(dev))
		i915_free_hws(dev);
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	return 0;
}

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static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
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{
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	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
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	master_priv->sarea = drm_getsarea(dev);
	if (master_priv->sarea) {
		master_priv->sarea_priv = (drm_i915_sarea_t *)
			((u8 *)master_priv->sarea->handle + init->sarea_priv_offset);
	} else {
		DRM_DEBUG("sarea not found assuming DRI2 userspace\n");
	}

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	if (init->ring_size != 0) {
		if (dev_priv->ring.ring_obj != NULL) {
			i915_dma_cleanup(dev);
			DRM_ERROR("Client tried to initialize ringbuffer in "
				  "GEM mode\n");
			return -EINVAL;
		}
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		dev_priv->ring.Size = init->ring_size;
		dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
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		dev_priv->ring.map.offset = init->ring_start;
		dev_priv->ring.map.size = init->ring_size;
		dev_priv->ring.map.type = 0;
		dev_priv->ring.map.flags = 0;
		dev_priv->ring.map.mtrr = 0;
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		drm_core_ioremap(&dev_priv->ring.map, dev);

		if (dev_priv->ring.map.handle == NULL) {
			i915_dma_cleanup(dev);
			DRM_ERROR("can not ioremap virtual address for"
				  " ring buffer\n");
			return -ENOMEM;
		}
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	}

	dev_priv->ring.virtual_start = dev_priv->ring.map.handle;

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	dev_priv->cpp = init->cpp;
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	dev_priv->back_offset = init->back_offset;
	dev_priv->front_offset = init->front_offset;
	dev_priv->current_page = 0;
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	if (master_priv->sarea_priv)
		master_priv->sarea_priv->pf_current_page = 0;
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	/* Allow hardware batchbuffers unless told otherwise.
	 */
	dev_priv->allow_batchbuffer = 1;

	return 0;
}

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static int i915_dma_resume(struct drm_device * dev)
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{
	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;

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	DRM_DEBUG("%s\n", __func__);
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	if (dev_priv->ring.map.handle == NULL) {
		DRM_ERROR("can not ioremap virtual address for"
			  " ring buffer\n");
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		return -ENOMEM;
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	}

	/* Program Hardware Status Page */
	if (!dev_priv->hw_status_page) {
		DRM_ERROR("Can not find hardware status page\n");
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		return -EINVAL;
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	}
	DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);

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	if (dev_priv->status_gfx_addr != 0)
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		I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
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	else
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		I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
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	DRM_DEBUG("Enabled hardware status page\n");

	return 0;
}

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static int i915_dma_init(struct drm_device *dev, void *data,
			 struct drm_file *file_priv)
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{
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	drm_i915_init_t *init = data;
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	int retcode = 0;

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	switch (init->func) {
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	case I915_INIT_DMA:
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		retcode = i915_initialize(dev, init);
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		break;
	case I915_CLEANUP_DMA:
		retcode = i915_dma_cleanup(dev);
		break;
	case I915_RESUME_DMA:
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		retcode = i915_dma_resume(dev);
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		break;
	default:
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		retcode = -EINVAL;
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		break;
	}

	return retcode;
}

/* Implement basically the same security restrictions as hardware does
 * for MI_BATCH_NON_SECURE.  These can be made stricter at any time.
 *
 * Most of the calculations below involve calculating the size of a
 * particular instruction.  It's important to get the size right as
 * that tells us where the next instruction to check is.  Any illegal
 * instruction detected will be given a size of zero, which is a
 * signal to abort the rest of the buffer.
 */
static int do_validate_cmd(int cmd)
{
	switch (((cmd >> 29) & 0x7)) {
	case 0x0:
		switch ((cmd >> 23) & 0x3f) {
		case 0x0:
			return 1;	/* MI_NOOP */
		case 0x4:
			return 1;	/* MI_FLUSH */
		default:
			return 0;	/* disallow everything else */
		}
		break;
	case 0x1:
		return 0;	/* reserved */
	case 0x2:
		return (cmd & 0xff) + 2;	/* 2d commands */
	case 0x3:
		if (((cmd >> 24) & 0x1f) <= 0x18)
			return 1;

		switch ((cmd >> 24) & 0x1f) {
		case 0x1c:
			return 1;
		case 0x1d:
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			switch ((cmd >> 16) & 0xff) {
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			case 0x3:
				return (cmd & 0x1f) + 2;
			case 0x4:
				return (cmd & 0xf) + 2;
			default:
				return (cmd & 0xffff) + 2;
			}
		case 0x1e:
			if (cmd & (1 << 23))
				return (cmd & 0xffff) + 1;
			else
				return 1;
		case 0x1f:
			if ((cmd & (1 << 23)) == 0)	/* inline vertices */
				return (cmd & 0x1ffff) + 2;
			else if (cmd & (1 << 17))	/* indirect random */
				if ((cmd & 0xffff) == 0)
					return 0;	/* unknown length, too hard */
				else
					return (((cmd & 0xffff) + 1) / 2) + 1;
			else
				return 2;	/* indirect sequential */
		default:
			return 0;
		}
	default:
		return 0;
	}

	return 0;
}

static int validate_cmd(int cmd)
{
	int ret = do_validate_cmd(cmd);

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/*	printk("validate_cmd( %x ): %d\n", cmd, ret); */
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	return ret;
}

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static int i915_emit_cmds(struct drm_device * dev, int __user * buffer, int dwords)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
	int i;
	RING_LOCALS;

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	if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)
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		return -EINVAL;
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	BEGIN_LP_RING((dwords+1)&~1);
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	for (i = 0; i < dwords;) {
		int cmd, sz;

		if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))
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			return -EINVAL;
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		if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
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			return -EINVAL;
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		OUT_RING(cmd);

		while (++i, --sz) {
			if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i],
							 sizeof(cmd))) {
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				return -EINVAL;
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			}
			OUT_RING(cmd);
		}
	}

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	if (dwords & 1)
		OUT_RING(0);

	ADVANCE_LP_RING();

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	return 0;
}

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int
i915_emit_box(struct drm_device *dev,
	      struct drm_clip_rect __user *boxes,
	      int i, int DR1, int DR4)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_clip_rect box;
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	RING_LOCALS;

	if (DRM_COPY_FROM_USER_UNCHECKED(&box, &boxes[i], sizeof(box))) {
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		return -EFAULT;
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	}

	if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
		DRM_ERROR("Bad box %d,%d..%d,%d\n",
			  box.x1, box.y1, box.x2, box.y2);
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		return -EINVAL;
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	}

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	if (IS_I965G(dev)) {
		BEGIN_LP_RING(4);
		OUT_RING(GFX_OP_DRAWRECT_INFO_I965);
		OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
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		OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
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		OUT_RING(DR4);
		ADVANCE_LP_RING();
	} else {
		BEGIN_LP_RING(6);
		OUT_RING(GFX_OP_DRAWRECT_INFO);
		OUT_RING(DR1);
		OUT_RING((box.x1 & 0xffff) | (box.y1 << 16));
		OUT_RING(((box.x2 - 1) & 0xffff) | ((box.y2 - 1) << 16));
		OUT_RING(DR4);
		OUT_RING(0);
		ADVANCE_LP_RING();
	}
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	return 0;
}

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/* XXX: Emitting the counter should really be moved to part of the IRQ
 * emit. For now, do it in both places:
 */

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static void i915_emit_breadcrumb(struct drm_device *dev)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
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	RING_LOCALS;

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	dev_priv->counter++;
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	if (dev_priv->counter > 0x7FFFFFFFUL)
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		dev_priv->counter = 0;
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	if (master_priv->sarea_priv)
		master_priv->sarea_priv->last_enqueue = dev_priv->counter;
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	BEGIN_LP_RING(4);
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	OUT_RING(MI_STORE_DWORD_INDEX);
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	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
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	OUT_RING(dev_priv->counter);
	OUT_RING(0);
	ADVANCE_LP_RING();
}

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static int i915_dispatch_cmdbuffer(struct drm_device * dev,
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				   drm_i915_cmdbuffer_t * cmd)
{
	int nbox = cmd->num_cliprects;
	int i = 0, count, ret;

	if (cmd->sz & 0x3) {
		DRM_ERROR("alignment");
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		return -EINVAL;
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	}

	i915_kernel_lost_context(dev);

	count = nbox ? nbox : 1;

	for (i = 0; i < count; i++) {
		if (i < nbox) {
			ret = i915_emit_box(dev, cmd->cliprects, i,
					    cmd->DR1, cmd->DR4);
			if (ret)
				return ret;
		}

		ret = i915_emit_cmds(dev, (int __user *)cmd->buf, cmd->sz / 4);
		if (ret)
			return ret;
	}

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	i915_emit_breadcrumb(dev);
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	return 0;
}

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static int i915_dispatch_batchbuffer(struct drm_device * dev,
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				     drm_i915_batchbuffer_t * batch)
{
	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_clip_rect __user *boxes = batch->cliprects;
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	int nbox = batch->num_cliprects;
	int i = 0, count;
	RING_LOCALS;

	if ((batch->start | batch->used) & 0x7) {
		DRM_ERROR("alignment");
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		return -EINVAL;
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	}

	i915_kernel_lost_context(dev);

	count = nbox ? nbox : 1;

	for (i = 0; i < count; i++) {
		if (i < nbox) {
			int ret = i915_emit_box(dev, boxes, i,
						batch->DR1, batch->DR4);
			if (ret)
				return ret;
		}

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		if (!IS_I830(dev) && !IS_845G(dev)) {
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			BEGIN_LP_RING(2);
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			if (IS_I965G(dev)) {
				OUT_RING(MI_BATCH_BUFFER_START | (2 << 6) | MI_BATCH_NON_SECURE_I965);
				OUT_RING(batch->start);
			} else {
				OUT_RING(MI_BATCH_BUFFER_START | (2 << 6));
				OUT_RING(batch->start | MI_BATCH_NON_SECURE);
			}
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			ADVANCE_LP_RING();
		} else {
			BEGIN_LP_RING(4);
			OUT_RING(MI_BATCH_BUFFER);
			OUT_RING(batch->start | MI_BATCH_NON_SECURE);
			OUT_RING(batch->start + batch->used - 4);
			OUT_RING(0);
			ADVANCE_LP_RING();
		}
	}

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	i915_emit_breadcrumb(dev);
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	return 0;
}

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static int i915_dispatch_flip(struct drm_device * dev)
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{
	drm_i915_private_t *dev_priv = dev->dev_private;
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	struct drm_i915_master_private *master_priv =
		dev->primary->master->driver_priv;
L
Linus Torvalds 已提交
550 551
	RING_LOCALS;

552
	if (!master_priv->sarea_priv)
553 554
		return -EINVAL;

555
	DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
556
		  __func__,
557
		  dev_priv->current_page,
558
		  master_priv->sarea_priv->pf_current_page);
L
Linus Torvalds 已提交
559

560 561 562
	i915_kernel_lost_context(dev);

	BEGIN_LP_RING(2);
563
	OUT_RING(MI_FLUSH | MI_READ_FLUSH);
564 565
	OUT_RING(0);
	ADVANCE_LP_RING();
L
Linus Torvalds 已提交
566

567 568 569 570 571 572
	BEGIN_LP_RING(6);
	OUT_RING(CMD_OP_DISPLAYBUFFER_INFO | ASYNC_FLIP);
	OUT_RING(0);
	if (dev_priv->current_page == 0) {
		OUT_RING(dev_priv->back_offset);
		dev_priv->current_page = 1;
L
Linus Torvalds 已提交
573
	} else {
574 575
		OUT_RING(dev_priv->front_offset);
		dev_priv->current_page = 0;
L
Linus Torvalds 已提交
576
	}
577 578
	OUT_RING(0);
	ADVANCE_LP_RING();
L
Linus Torvalds 已提交
579

580 581 582 583
	BEGIN_LP_RING(2);
	OUT_RING(MI_WAIT_FOR_EVENT | MI_WAIT_FOR_PLANE_A_FLIP);
	OUT_RING(0);
	ADVANCE_LP_RING();
L
Linus Torvalds 已提交
584

585
	master_priv->sarea_priv->last_enqueue = dev_priv->counter++;
L
Linus Torvalds 已提交
586 587

	BEGIN_LP_RING(4);
588
	OUT_RING(MI_STORE_DWORD_INDEX);
589
	OUT_RING(I915_BREADCRUMB_INDEX << MI_STORE_DWORD_INDEX_SHIFT);
590 591
	OUT_RING(dev_priv->counter);
	OUT_RING(0);
L
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592 593
	ADVANCE_LP_RING();

594
	master_priv->sarea_priv->pf_current_page = dev_priv->current_page;
595
	return 0;
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}

598
static int i915_quiescent(struct drm_device * dev)
L
Linus Torvalds 已提交
599 600 601 602
{
	drm_i915_private_t *dev_priv = dev->dev_private;

	i915_kernel_lost_context(dev);
603
	return i915_wait_ring(dev, dev_priv->ring.Size - 8, __func__);
L
Linus Torvalds 已提交
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}

606 607
static int i915_flush_ioctl(struct drm_device *dev, void *data,
			    struct drm_file *file_priv)
L
Linus Torvalds 已提交
608
{
609 610 611
	int ret;

	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
L
Linus Torvalds 已提交
612

613 614 615 616 617
	mutex_lock(&dev->struct_mutex);
	ret = i915_quiescent(dev);
	mutex_unlock(&dev->struct_mutex);

	return ret;
L
Linus Torvalds 已提交
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}

620 621
static int i915_batchbuffer(struct drm_device *dev, void *data,
			    struct drm_file *file_priv)
L
Linus Torvalds 已提交
622 623
{
	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
624
	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
L
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625
	drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
626
	    master_priv->sarea_priv;
627
	drm_i915_batchbuffer_t *batch = data;
L
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628 629 630 631
	int ret;

	if (!dev_priv->allow_batchbuffer) {
		DRM_ERROR("Batchbuffer ioctl disabled\n");
E
Eric Anholt 已提交
632
		return -EINVAL;
L
Linus Torvalds 已提交
633 634 635
	}

	DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n",
636
		  batch->start, batch->used, batch->num_cliprects);
L
Linus Torvalds 已提交
637

638
	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
L
Linus Torvalds 已提交
639

640 641
	if (batch->num_cliprects && DRM_VERIFYAREA_READ(batch->cliprects,
						       batch->num_cliprects *
642
						       sizeof(struct drm_clip_rect)))
E
Eric Anholt 已提交
643
		return -EFAULT;
L
Linus Torvalds 已提交
644

645
	mutex_lock(&dev->struct_mutex);
646
	ret = i915_dispatch_batchbuffer(dev, batch);
647
	mutex_unlock(&dev->struct_mutex);
L
Linus Torvalds 已提交
648

649
	if (sarea_priv)
650
		sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
L
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651 652 653
	return ret;
}

654 655
static int i915_cmdbuffer(struct drm_device *dev, void *data,
			  struct drm_file *file_priv)
L
Linus Torvalds 已提交
656 657
{
	drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
658
	struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
L
Linus Torvalds 已提交
659
	drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
660
	    master_priv->sarea_priv;
661
	drm_i915_cmdbuffer_t *cmdbuf = data;
L
Linus Torvalds 已提交
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	int ret;

	DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
665
		  cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
L
Linus Torvalds 已提交
666

667
	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
L
Linus Torvalds 已提交
668

669 670 671
	if (cmdbuf->num_cliprects &&
	    DRM_VERIFYAREA_READ(cmdbuf->cliprects,
				cmdbuf->num_cliprects *
672
				sizeof(struct drm_clip_rect))) {
L
Linus Torvalds 已提交
673
		DRM_ERROR("Fault accessing cliprects\n");
E
Eric Anholt 已提交
674
		return -EFAULT;
L
Linus Torvalds 已提交
675 676
	}

677
	mutex_lock(&dev->struct_mutex);
678
	ret = i915_dispatch_cmdbuffer(dev, cmdbuf);
679
	mutex_unlock(&dev->struct_mutex);
L
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680 681 682 683 684
	if (ret) {
		DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
		return ret;
	}

685
	if (sarea_priv)
686
		sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
L
Linus Torvalds 已提交
687 688 689
	return 0;
}

690 691
static int i915_flip_bufs(struct drm_device *dev, void *data,
			  struct drm_file *file_priv)
L
Linus Torvalds 已提交
692
{
693 694
	int ret;

695
	DRM_DEBUG("%s\n", __func__);
L
Linus Torvalds 已提交
696

697
	RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
L
Linus Torvalds 已提交
698

699 700 701 702 703
	mutex_lock(&dev->struct_mutex);
	ret = i915_dispatch_flip(dev);
	mutex_unlock(&dev->struct_mutex);

	return ret;
L
Linus Torvalds 已提交
704 705
}

706 707
static int i915_getparam(struct drm_device *dev, void *data,
			 struct drm_file *file_priv)
L
Linus Torvalds 已提交
708 709
{
	drm_i915_private_t *dev_priv = dev->dev_private;
710
	drm_i915_getparam_t *param = data;
L
Linus Torvalds 已提交
711 712 713
	int value;

	if (!dev_priv) {
714
		DRM_ERROR("called with no initialization\n");
E
Eric Anholt 已提交
715
		return -EINVAL;
L
Linus Torvalds 已提交
716 717
	}

718
	switch (param->param) {
L
Linus Torvalds 已提交
719
	case I915_PARAM_IRQ_ACTIVE:
720
		value = dev->pdev->irq ? 1 : 0;
L
Linus Torvalds 已提交
721 722 723 724
		break;
	case I915_PARAM_ALLOW_BATCHBUFFER:
		value = dev_priv->allow_batchbuffer ? 1 : 0;
		break;
D
Dave Airlie 已提交
725 726 727
	case I915_PARAM_LAST_DISPATCH:
		value = READ_BREADCRUMB(dev_priv);
		break;
K
Kristian Høgsberg 已提交
728 729 730
	case I915_PARAM_CHIPSET_ID:
		value = dev->pci_device;
		break;
731
	case I915_PARAM_HAS_GEM:
732
		value = dev_priv->has_gem;
733
		break;
734 735 736
	case I915_PARAM_NUM_FENCES_AVAIL:
		value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
		break;
L
Linus Torvalds 已提交
737
	default:
738
		DRM_DEBUG("Unknown parameter %d\n", param->param);
E
Eric Anholt 已提交
739
		return -EINVAL;
L
Linus Torvalds 已提交
740 741
	}

742
	if (DRM_COPY_TO_USER(param->value, &value, sizeof(int))) {
L
Linus Torvalds 已提交
743
		DRM_ERROR("DRM_COPY_TO_USER failed\n");
E
Eric Anholt 已提交
744
		return -EFAULT;
L
Linus Torvalds 已提交
745 746 747 748 749
	}

	return 0;
}

750 751
static int i915_setparam(struct drm_device *dev, void *data,
			 struct drm_file *file_priv)
L
Linus Torvalds 已提交
752 753
{
	drm_i915_private_t *dev_priv = dev->dev_private;
754
	drm_i915_setparam_t *param = data;
L
Linus Torvalds 已提交
755 756

	if (!dev_priv) {
757
		DRM_ERROR("called with no initialization\n");
E
Eric Anholt 已提交
758
		return -EINVAL;
L
Linus Torvalds 已提交
759 760
	}

761
	switch (param->param) {
L
Linus Torvalds 已提交
762 763 764
	case I915_SETPARAM_USE_MI_BATCHBUFFER_START:
		break;
	case I915_SETPARAM_TEX_LRU_LOG_GRANULARITY:
765
		dev_priv->tex_lru_log_granularity = param->value;
L
Linus Torvalds 已提交
766 767
		break;
	case I915_SETPARAM_ALLOW_BATCHBUFFER:
768
		dev_priv->allow_batchbuffer = param->value;
L
Linus Torvalds 已提交
769
		break;
770 771 772 773 774 775 776
	case I915_SETPARAM_NUM_USED_FENCES:
		if (param->value > dev_priv->num_fence_regs ||
		    param->value < 0)
			return -EINVAL;
		/* Userspace can use first N regs */
		dev_priv->fence_reg_start = param->value;
		break;
L
Linus Torvalds 已提交
777
	default:
778
		DRM_DEBUG("unknown parameter %d\n", param->param);
E
Eric Anholt 已提交
779
		return -EINVAL;
L
Linus Torvalds 已提交
780 781 782 783 784
	}

	return 0;
}

785 786
static int i915_set_status_page(struct drm_device *dev, void *data,
				struct drm_file *file_priv)
787 788
{
	drm_i915_private_t *dev_priv = dev->dev_private;
789
	drm_i915_hws_addr_t *hws = data;
790 791 792

	if (!I915_NEED_GFX_HWS(dev))
		return -EINVAL;
793 794

	if (!dev_priv) {
795
		DRM_ERROR("called with no initialization\n");
E
Eric Anholt 已提交
796
		return -EINVAL;
797 798
	}

J
Jesse Barnes 已提交
799 800 801 802 803
	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		WARN(1, "tried to set status page when mode setting active\n");
		return 0;
	}

804 805 806
	printk(KERN_DEBUG "set status page addr 0x%08x\n", (u32)hws->addr);

	dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
807

808
	dev_priv->hws_map.offset = dev->agp->base + hws->addr;
809 810 811 812 813 814 815 816 817 818 819
	dev_priv->hws_map.size = 4*1024;
	dev_priv->hws_map.type = 0;
	dev_priv->hws_map.flags = 0;
	dev_priv->hws_map.mtrr = 0;

	drm_core_ioremap(&dev_priv->hws_map, dev);
	if (dev_priv->hws_map.handle == NULL) {
		i915_dma_cleanup(dev);
		dev_priv->status_gfx_addr = 0;
		DRM_ERROR("can not ioremap virtual address for"
				" G33 hw status page\n");
E
Eric Anholt 已提交
820
		return -ENOMEM;
821 822 823 824
	}
	dev_priv->hw_status_page = dev_priv->hws_map.handle;

	memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
825 826
	I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
	DRM_DEBUG("load hws HWS_PGA with gfx mem 0x%x\n",
827 828 829 830 831
			dev_priv->status_gfx_addr);
	DRM_DEBUG("load hws at %p\n", dev_priv->hw_status_page);
	return 0;
}

J
Jesse Barnes 已提交
832 833 834 835 836 837 838 839 840 841
/**
 * i915_probe_agp - get AGP bootup configuration
 * @pdev: PCI device
 * @aperture_size: returns AGP aperture configured size
 * @preallocated_size: returns size of BIOS preallocated AGP space
 *
 * Since Intel integrated graphics are UMA, the BIOS has to set aside
 * some RAM for the framebuffer at early boot.  This code figures out
 * how much was set aside so we can use it for our own purposes.
 */
842 843
static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
			  unsigned long *preallocated_size)
J
Jesse Barnes 已提交
844 845 846 847
{
	struct pci_dev *bridge_dev;
	u16 tmp = 0;
	unsigned long overhead;
848
	unsigned long stolen;
J
Jesse Barnes 已提交
849 850 851 852 853 854 855 856 857 858 859 860 861 862

	bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
	if (!bridge_dev) {
		DRM_ERROR("bridge device not found\n");
		return -1;
	}

	/* Get the fb aperture size and "stolen" memory amount. */
	pci_read_config_word(bridge_dev, INTEL_GMCH_CTRL, &tmp);
	pci_dev_put(bridge_dev);

	*aperture_size = 1024 * 1024;
	*preallocated_size = 1024 * 1024;

863
	switch (dev->pdev->device) {
J
Jesse Barnes 已提交
864 865 866 867 868 869 870 871 872 873 874
	case PCI_DEVICE_ID_INTEL_82830_CGC:
	case PCI_DEVICE_ID_INTEL_82845G_IG:
	case PCI_DEVICE_ID_INTEL_82855GM_IG:
	case PCI_DEVICE_ID_INTEL_82865_IG:
		if ((tmp & INTEL_GMCH_MEM_MASK) == INTEL_GMCH_MEM_64M)
			*aperture_size *= 64;
		else
			*aperture_size *= 128;
		break;
	default:
		/* 9xx supports large sizes, just look at the length */
875
		*aperture_size = pci_resource_len(dev->pdev, 2);
J
Jesse Barnes 已提交
876 877 878 879 880 881 882
		break;
	}

	/*
	 * Some of the preallocated space is taken by the GTT
	 * and popup.  GTT is 1K per MB of aperture size, and popup is 4K.
	 */
883 884 885 886 887
	if (IS_G4X(dev))
		overhead = 4096;
	else
		overhead = (*aperture_size / 1024) + 4096;

888 889 890 891
	switch (tmp & INTEL_GMCH_GMS_MASK) {
	case INTEL_855_GMCH_GMS_DISABLED:
		DRM_ERROR("video memory is disabled\n");
		return -1;
J
Jesse Barnes 已提交
892
	case INTEL_855_GMCH_GMS_STOLEN_1M:
893 894
		stolen = 1 * 1024 * 1024;
		break;
J
Jesse Barnes 已提交
895
	case INTEL_855_GMCH_GMS_STOLEN_4M:
896
		stolen = 4 * 1024 * 1024;
J
Jesse Barnes 已提交
897 898
		break;
	case INTEL_855_GMCH_GMS_STOLEN_8M:
899
		stolen = 8 * 1024 * 1024;
J
Jesse Barnes 已提交
900 901
		break;
	case INTEL_855_GMCH_GMS_STOLEN_16M:
902
		stolen = 16 * 1024 * 1024;
J
Jesse Barnes 已提交
903 904
		break;
	case INTEL_855_GMCH_GMS_STOLEN_32M:
905
		stolen = 32 * 1024 * 1024;
J
Jesse Barnes 已提交
906 907
		break;
	case INTEL_915G_GMCH_GMS_STOLEN_48M:
908
		stolen = 48 * 1024 * 1024;
J
Jesse Barnes 已提交
909 910
		break;
	case INTEL_915G_GMCH_GMS_STOLEN_64M:
911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929
		stolen = 64 * 1024 * 1024;
		break;
	case INTEL_GMCH_GMS_STOLEN_128M:
		stolen = 128 * 1024 * 1024;
		break;
	case INTEL_GMCH_GMS_STOLEN_256M:
		stolen = 256 * 1024 * 1024;
		break;
	case INTEL_GMCH_GMS_STOLEN_96M:
		stolen = 96 * 1024 * 1024;
		break;
	case INTEL_GMCH_GMS_STOLEN_160M:
		stolen = 160 * 1024 * 1024;
		break;
	case INTEL_GMCH_GMS_STOLEN_224M:
		stolen = 224 * 1024 * 1024;
		break;
	case INTEL_GMCH_GMS_STOLEN_352M:
		stolen = 352 * 1024 * 1024;
J
Jesse Barnes 已提交
930 931 932
		break;
	default:
		DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
933
			tmp & INTEL_GMCH_GMS_MASK);
J
Jesse Barnes 已提交
934 935
		return -1;
	}
936
	*preallocated_size = stolen - overhead;
J
Jesse Barnes 已提交
937 938 939 940 941 942 943 944 945 946 947

	return 0;
}

static int i915_load_modeset_init(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;
	unsigned long agp_size, prealloc_size;
	int fb_bar = IS_I9XX(dev) ? 2 : 0;
	int ret = 0;

948 949 950 951 952 953
	dev->devname = kstrdup(DRIVER_NAME, GFP_KERNEL);
	if (!dev->devname) {
		ret = -ENOMEM;
		goto out;
	}

J
Jesse Barnes 已提交
954 955 956
	dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
		0xff000000;

957
	if (IS_MOBILE(dev) || IS_I9XX(dev))
J
Jesse Barnes 已提交
958 959 960 961
		dev_priv->cursor_needs_physical = true;
	else
		dev_priv->cursor_needs_physical = false;

962 963 964
	if (IS_I965G(dev) || IS_G33(dev))
		dev_priv->cursor_needs_physical = false;

965 966 967
	ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
	if (ret)
		goto kfree_devname;
J
Jesse Barnes 已提交
968 969 970 971 972 973 974 975 976

	/* Basic memrange allocator for stolen space (aka vram) */
	drm_mm_init(&dev_priv->vram, 0, prealloc_size);

	/* Let GEM Manage from end of prealloc space to end of aperture */
	i915_gem_do_init(dev, prealloc_size, agp_size);

	ret = i915_gem_init_ringbuffer(dev);
	if (ret)
977
		goto kfree_devname;
J
Jesse Barnes 已提交
978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015

	/* Allow hardware batchbuffers unless told otherwise.
	 */
	dev_priv->allow_batchbuffer = 1;

	ret = intel_init_bios(dev);
	if (ret)
		DRM_INFO("failed to find VBIOS tables\n");

	ret = drm_irq_install(dev);
	if (ret)
		goto destroy_ringbuffer;

	/* FIXME: re-add hotplug support */
#if 0
	ret = drm_hotplug_init(dev);
	if (ret)
		goto destroy_ringbuffer;
#endif

	/* Always safe in the mode setting case. */
	/* FIXME: do pre/post-mode set stuff in core KMS code */
	dev->vblank_disable_allowed = 1;

	/*
	 * Initialize the hardware status page IRQ location.
	 */

	I915_WRITE(INSTPM, (1 << 5) | (1 << 21));

	intel_modeset_init(dev);

	drm_helper_initial_config(dev, false);

	return 0;

destroy_ringbuffer:
	i915_gem_cleanup_ringbuffer(dev);
1016 1017
kfree_devname:
	kfree(dev->devname);
J
Jesse Barnes 已提交
1018 1019 1020 1021
out:
	return ret;
}

1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045
int i915_master_create(struct drm_device *dev, struct drm_master *master)
{
	struct drm_i915_master_private *master_priv;

	master_priv = drm_calloc(1, sizeof(*master_priv), DRM_MEM_DRIVER);
	if (!master_priv)
		return -ENOMEM;

	master->driver_priv = master_priv;
	return 0;
}

void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
{
	struct drm_i915_master_private *master_priv = master->driver_priv;

	if (!master_priv)
		return;

	drm_free(master_priv, sizeof(*master_priv), DRM_MEM_DRIVER);

	master->driver_priv = NULL;
}

J
Jesse Barnes 已提交
1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056
/**
 * i915_driver_load - setup chip and create an initial config
 * @dev: DRM device
 * @flags: startup flags
 *
 * The driver load routine has to do several things:
 *   - drive output discovery via intel_modeset_init()
 *   - initialize the memory manager
 *   - allocate initial config memory
 *   - setup the DRM framebuffer with the allocated memory
 */
1057
int i915_driver_load(struct drm_device *dev, unsigned long flags)
1058
{
J
Jesse Barnes 已提交
1059 1060 1061 1062
	struct drm_i915_private *dev_priv = dev->dev_private;
	unsigned long base, size;
	int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;

1063 1064 1065 1066 1067 1068 1069
	/* i915 has 4 more counters */
	dev->counters += 4;
	dev->types[6] = _DRM_STAT_IRQ;
	dev->types[7] = _DRM_STAT_PRIMARY;
	dev->types[8] = _DRM_STAT_SECONDARY;
	dev->types[9] = _DRM_STAT_DMA;

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	dev_priv = drm_alloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER);
	if (dev_priv == NULL)
		return -ENOMEM;

	memset(dev_priv, 0, sizeof(drm_i915_private_t));

	dev->dev_private = (void *)dev_priv;
1077
	dev_priv->dev = dev;
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	/* Add register map (needed for suspend/resume) */
	base = drm_get_resource_start(dev, mmio_bar);
	size = drm_get_resource_len(dev, mmio_bar);

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	dev_priv->regs = ioremap(base, size);
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	if (!dev_priv->regs) {
		DRM_ERROR("failed to map registers\n");
		ret = -EIO;
		goto free_priv;
	}
1089

1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106
        dev_priv->mm.gtt_mapping =
		io_mapping_create_wc(dev->agp->base,
				     dev->agp->agp_info.aper_size * 1024*1024);
	/* Set up a WC MTRR for non-PAT systems.  This is more common than
	 * one would think, because the kernel disables PAT on first
	 * generation Core chips because WC PAT gets overridden by a UC
	 * MTRR if present.  Even if a UC MTRR isn't present.
	 */
	dev_priv->mm.gtt_mtrr = mtrr_add(dev->agp->base,
					 dev->agp->agp_info.aper_size *
					 1024 * 1024,
					 MTRR_TYPE_WRCOMB, 1);
	if (dev_priv->mm.gtt_mtrr < 0) {
		DRM_INFO("MTRR allocation failed\n.  Graphics "
			 "performance may suffer.\n");
	}

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#ifdef CONFIG_HIGHMEM64G
	/* don't enable GEM on PAE - needs agp + set_memory_* interface fixes */
	dev_priv->has_gem = 0;
#else
	/* enable GEM by default */
	dev_priv->has_gem = 1;
#endif

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	i915_gem_load(dev);

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	/* Init HWS */
	if (!I915_NEED_GFX_HWS(dev)) {
		ret = i915_init_phys_hws(dev);
		if (ret != 0)
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			goto out_rmmap;
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	}
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	/* On the 945G/GM, the chipset reports the MSI capability on the
	 * integrated graphics even though the support isn't actually there
	 * according to the published specs.  It doesn't appear to function
	 * correctly in testing on 945G.
	 * This may be a side effect of MSI having been made available for PEG
	 * and the registers being closely associated.
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	 *
	 * According to chipset errata, on the 965GM, MSI interrupts may
1132 1133
	 * be lost or delayed, but we use them anyways to avoid
	 * stuck interrupts on some machines.
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	 */
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	if (!IS_I945G(dev) && !IS_I945GM(dev))
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		pci_enable_msi(dev->pdev);
1137

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	intel_opregion_init(dev);

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	spin_lock_init(&dev_priv->user_irq_lock);
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	dev_priv->user_irq_refcount = 0;
1142

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	ret = drm_vblank_init(dev, I915_NUM_PIPE);

	if (ret) {
		(void) i915_driver_unload(dev);
		return ret;
	}

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	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		ret = i915_load_modeset_init(dev);
		if (ret < 0) {
			DRM_ERROR("failed to init modeset\n");
			goto out_rmmap;
		}
	}

	return 0;

out_rmmap:
	iounmap(dev_priv->regs);
free_priv:
	drm_free(dev_priv, sizeof(struct drm_i915_private), DRM_MEM_DRIVER);
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	return ret;
}

int i915_driver_unload(struct drm_device *dev)
{
	struct drm_i915_private *dev_priv = dev->dev_private;

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	io_mapping_free(dev_priv->mm.gtt_mapping);
	if (dev_priv->mm.gtt_mtrr >= 0) {
		mtrr_del(dev_priv->mm.gtt_mtrr, dev->agp->base,
			 dev->agp->agp_info.aper_size * 1024 * 1024);
		dev_priv->mm.gtt_mtrr = -1;
	}

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	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		drm_irq_uninstall(dev);
	}

1182 1183 1184
	if (dev->pdev->msi_enabled)
		pci_disable_msi(dev->pdev);

1185 1186
	if (dev_priv->regs != NULL)
		iounmap(dev_priv->regs);
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1188 1189
	intel_opregion_free(dev);

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	if (drm_core_check_feature(dev, DRIVER_MODESET)) {
		intel_modeset_cleanup(dev);

1193 1194
		i915_gem_free_all_phys_object(dev);

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		mutex_lock(&dev->struct_mutex);
		i915_gem_cleanup_ringbuffer(dev);
		mutex_unlock(&dev->struct_mutex);
		drm_mm_takedown(&dev_priv->vram);
		i915_gem_lastclose(dev);
	}

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	drm_free(dev->dev_private, sizeof(drm_i915_private_t),
		 DRM_MEM_DRIVER);

1205 1206 1207
	return 0;
}

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int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
{
	struct drm_i915_file_private *i915_file_priv;

	DRM_DEBUG("\n");
	i915_file_priv = (struct drm_i915_file_private *)
	    drm_alloc(sizeof(*i915_file_priv), DRM_MEM_FILES);

	if (!i915_file_priv)
		return -ENOMEM;

	file_priv->driver_priv = i915_file_priv;

	i915_file_priv->mm.last_gem_seqno = 0;
	i915_file_priv->mm.last_gem_throttle_seqno = 0;

	return 0;
}

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/**
 * i915_driver_lastclose - clean up after all DRM clients have exited
 * @dev: DRM device
 *
 * Take care of cleaning up after all DRM clients have exited.  In the
 * mode setting case, we want to restore the kernel's initial mode (just
 * in case the last client left us in a bad state).
 *
 * Additionally, in the non-mode setting case, we'll tear down the AGP
 * and DMA structures, since the kernel won't be using them, and clea
 * up any GEM state.
 */
1239
void i915_driver_lastclose(struct drm_device * dev)
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{
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	drm_i915_private_t *dev_priv = dev->dev_private;

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	if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
		intelfb_restore();
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		return;
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	}
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1248 1249
	i915_gem_lastclose(dev);

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	if (dev_priv->agp_heap)
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		i915_mem_takedown(&(dev_priv->agp_heap));
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	i915_dma_cleanup(dev);
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}

1256
void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
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{
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	drm_i915_private_t *dev_priv = dev->dev_private;
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	if (!drm_core_check_feature(dev, DRIVER_MODESET))
		i915_mem_release(dev, file_priv, dev_priv->agp_heap);
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}

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void i915_driver_postclose(struct drm_device *dev, struct drm_file *file_priv)
{
	struct drm_i915_file_private *i915_file_priv = file_priv->driver_priv;

	drm_free(i915_file_priv, sizeof(*i915_file_priv), DRM_MEM_FILES);
}

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struct drm_ioctl_desc i915_ioctls[] = {
	DRM_IOCTL_DEF(DRM_I915_INIT, i915_dma_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_I915_FLUSH, i915_flush_ioctl, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_FLIP, i915_flip_bufs, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_BATCHBUFFER, i915_batchbuffer, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_IRQ_EMIT, i915_irq_emit, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_IRQ_WAIT, i915_irq_wait, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_GETPARAM, i915_getparam, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_SETPARAM, i915_setparam, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_I915_ALLOC, i915_mem_alloc, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_FREE, i915_mem_free, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_INIT_HEAP, i915_mem_init_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_I915_CMDBUFFER, i915_cmdbuffer, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_DESTROY_HEAP,  i915_mem_destroy_heap, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
	DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE,  i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
	DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE,  i915_vblank_pipe_get, DRM_AUTH ),
	DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
1287
	DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1288
	DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
1289 1290 1291 1292 1293
	DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH),
	DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH),
1294 1295
	DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
	DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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	DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, 0),
	DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, 0),
	DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, 0),
	DRM_IOCTL_DEF(DRM_I915_GEM_MMAP, i915_gem_mmap_ioctl, 0),
1300
	DRM_IOCTL_DEF(DRM_I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, 0),
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	DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, 0),
	DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, 0),
	DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0),
	DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0),
1305
	DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, 0),
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};

int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320

/**
 * Determine if the device really is AGP or not.
 *
 * All Intel graphics chipsets are treated as AGP, even if they are really
 * PCI-e.
 *
 * \param dev   The device to be tested.
 *
 * \returns
 * A value of 1 is always retured to indictate every i9x5 is AGP.
 */
1321
int i915_driver_device_is_agp(struct drm_device * dev)
1322 1323 1324
{
	return 1;
}