drm: Propagate error from drm_fb_helper_init().
[safe/jmp/linux-2.6] / drivers / gpu / drm / i915 / i915_dma.c
index 6dab63b..59a2bf8 100644 (file)
 #include "drmP.h"
 #include "drm.h"
 #include "drm_crtc_helper.h"
+#include "drm_fb_helper.h"
 #include "intel_drv.h"
 #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.
- */
-int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
-{
-       drm_i915_private_t *dev_priv = dev->dev_private;
-       struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
-       drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
-       u32 acthd_reg = IS_I965G(dev) ? ACTHD_I965 : ACTHD;
-       u32 last_acthd = I915_READ(acthd_reg);
-       u32 acthd;
-       u32 last_head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
-       int i;
-
-       for (i = 0; i < 100000; i++) {
-               ring->head = I915_READ(PRB0_HEAD) & HEAD_ADDR;
-               acthd = I915_READ(acthd_reg);
-               ring->space = ring->head - (ring->tail + 8);
-               if (ring->space < 0)
-                       ring->space += ring->Size;
-               if (ring->space >= n)
-                       return 0;
-
-               if (master_priv->sarea_priv)
-                       master_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
-
-               if (ring->head != last_head)
-                       i = 0;
-               if (acthd != last_acthd)
-                       i = 0;
-
-               last_head = ring->head;
-               last_acthd = acthd;
-               msleep_interruptible(10);
-
-       }
-
-       return -EBUSY;
-}
+#include "i915_trace.h"
+#include <linux/vgaarb.h>
+#include <linux/acpi.h>
+#include <linux/pnp.h>
+#include <linux/vga_switcheroo.h>
+#include <linux/slab.h>
 
 /**
  * Sets up the hardware status page for devices that need a physical address
@@ -84,19 +49,24 @@ static int i915_init_phys_hws(struct drm_device *dev)
        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);
+               drm_pci_alloc(dev, PAGE_SIZE, PAGE_SIZE);
 
        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->render_ring.status_page.page_addr
+               = 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);
+       memset(dev_priv->render_ring.status_page.page_addr, 0, PAGE_SIZE);
+
+       if (IS_I965G(dev))
+               dev_priv->dma_status_page |= (dev_priv->dma_status_page >> 28) &
+                                            0xf0;
 
        I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
-       DRM_DEBUG("Enabled hardware status page\n");
+       DRM_DEBUG_DRIVER("Enabled hardware status page\n");
        return 0;
 }
 
@@ -112,8 +82,8 @@ static void i915_free_hws(struct drm_device *dev)
                dev_priv->status_page_dmah = NULL;
        }
 
-       if (dev_priv->status_gfx_addr) {
-               dev_priv->status_gfx_addr = 0;
+       if (dev_priv->render_ring.status_page.gfx_addr) {
+               dev_priv->render_ring.status_page.gfx_addr = 0;
                drm_core_ioremapfree(&dev_priv->hws_map, dev);
        }
 
@@ -125,7 +95,7 @@ void i915_kernel_lost_context(struct drm_device * dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        struct drm_i915_master_private *master_priv;
-       drm_i915_ring_buffer_t *ring = &(dev_priv->ring);
+       struct intel_ring_buffer *ring = &dev_priv->render_ring;
 
        /*
         * We should never lose context on the ring with modesetting
@@ -138,7 +108,7 @@ void i915_kernel_lost_context(struct drm_device * dev)
        ring->tail = I915_READ(PRB0_TAIL) & TAIL_ADDR;
        ring->space = ring->head - (ring->tail + 8);
        if (ring->space < 0)
-               ring->space += ring->Size;
+               ring->space += ring->size;
 
        if (!dev->primary->master)
                return;
@@ -158,12 +128,9 @@ static int i915_dma_cleanup(struct drm_device * dev)
        if (dev->irq_enabled)
                drm_irq_uninstall(dev);
 
-       if (dev_priv->ring.virtual_start) {
-               drm_core_ioremapfree(&dev_priv->ring.map, dev);
-               dev_priv->ring.virtual_start = NULL;
-               dev_priv->ring.map.handle = NULL;
-               dev_priv->ring.map.size = 0;
-       }
+       intel_cleanup_ring_buffer(dev, &dev_priv->render_ring);
+       if (HAS_BSD(dev))
+               intel_cleanup_ring_buffer(dev, &dev_priv->bsd_ring);
 
        /* Clear the HWS virtual address at teardown */
        if (I915_NEED_GFX_HWS(dev))
@@ -182,29 +149,28 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
                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");
+               DRM_DEBUG_DRIVER("sarea not found assuming DRI2 userspace\n");
        }
 
        if (init->ring_size != 0) {
-               if (dev_priv->ring.ring_obj != NULL) {
+               if (dev_priv->render_ring.gem_object != NULL) {
                        i915_dma_cleanup(dev);
                        DRM_ERROR("Client tried to initialize ringbuffer in "
                                  "GEM mode\n");
                        return -EINVAL;
                }
 
-               dev_priv->ring.Size = init->ring_size;
-               dev_priv->ring.tail_mask = dev_priv->ring.Size - 1;
+               dev_priv->render_ring.size = init->ring_size;
 
-               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;
+               dev_priv->render_ring.map.offset = init->ring_start;
+               dev_priv->render_ring.map.size = init->ring_size;
+               dev_priv->render_ring.map.type = 0;
+               dev_priv->render_ring.map.flags = 0;
+               dev_priv->render_ring.map.mtrr = 0;
 
-               drm_core_ioremap_wc(&dev_priv->ring.map, dev);
+               drm_core_ioremap_wc(&dev_priv->render_ring.map, dev);
 
-               if (dev_priv->ring.map.handle == NULL) {
+               if (dev_priv->render_ring.map.handle == NULL) {
                        i915_dma_cleanup(dev);
                        DRM_ERROR("can not ioremap virtual address for"
                                  " ring buffer\n");
@@ -212,7 +178,7 @@ static int i915_initialize(struct drm_device * dev, drm_i915_init_t * init)
                }
        }
 
-       dev_priv->ring.virtual_start = dev_priv->ring.map.handle;
+       dev_priv->render_ring.virtual_start = dev_priv->render_ring.map.handle;
 
        dev_priv->cpp = init->cpp;
        dev_priv->back_offset = init->back_offset;
@@ -232,26 +198,30 @@ static int i915_dma_resume(struct drm_device * dev)
 {
        drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private;
 
-       DRM_DEBUG("%s\n", __func__);
+       struct intel_ring_buffer *ring;
+       DRM_DEBUG_DRIVER("%s\n", __func__);
+
+       ring = &dev_priv->render_ring;
 
-       if (dev_priv->ring.map.handle == NULL) {
+       if (ring->map.handle == NULL) {
                DRM_ERROR("can not ioremap virtual address for"
                          " ring buffer\n");
                return -ENOMEM;
        }
 
        /* Program Hardware Status Page */
-       if (!dev_priv->hw_status_page) {
+       if (!ring->status_page.page_addr) {
                DRM_ERROR("Can not find hardware status page\n");
                return -EINVAL;
        }
-       DRM_DEBUG("hw status page @ %p\n", dev_priv->hw_status_page);
-
-       if (dev_priv->status_gfx_addr != 0)
-               I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
+       DRM_DEBUG_DRIVER("hw status page @ %p\n",
+                               ring->status_page.page_addr);
+       if (ring->status_page.gfx_addr != 0)
+               ring->setup_status_page(dev, ring);
        else
                I915_WRITE(HWS_PGA, dev_priv->dma_status_page);
-       DRM_DEBUG("Enabled hardware status page\n");
+
+       DRM_DEBUG_DRIVER("Enabled hardware status page\n");
 
        return 0;
 }
@@ -356,13 +326,12 @@ static int validate_cmd(int cmd)
        return ret;
 }
 
-static int i915_emit_cmds(struct drm_device * dev, int __user * buffer, int dwords)
+static int i915_emit_cmds(struct drm_device * dev, int *buffer, int dwords)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        int i;
-       RING_LOCALS;
 
-       if ((dwords+1) * sizeof(int) >= dev_priv->ring.Size - 8)
+       if ((dwords+1) * sizeof(int) >= dev_priv->render_ring.size - 8)
                return -EINVAL;
 
        BEGIN_LP_RING((dwords+1)&~1);
@@ -370,8 +339,7 @@ static int i915_emit_cmds(struct drm_device * dev, int __user * buffer, int dwor
        for (i = 0; i < dwords;) {
                int cmd, sz;
 
-               if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i], sizeof(cmd)))
-                       return -EINVAL;
+               cmd = buffer[i];
 
                if ((sz = validate_cmd(cmd)) == 0 || i + sz > dwords)
                        return -EINVAL;
@@ -379,11 +347,7 @@ static int i915_emit_cmds(struct drm_device * dev, int __user * buffer, int dwor
                OUT_RING(cmd);
 
                while (++i, --sz) {
-                       if (DRM_COPY_FROM_USER_UNCHECKED(&cmd, &buffer[i],
-                                                        sizeof(cmd))) {
-                               return -EINVAL;
-                       }
-                       OUT_RING(cmd);
+                       OUT_RING(buffer[i]);
                }
        }
 
@@ -397,16 +361,10 @@ static int i915_emit_cmds(struct drm_device * dev, int __user * buffer, int dwor
 
 int
 i915_emit_box(struct drm_device *dev,
-             struct drm_clip_rect __user *boxes,
+             struct drm_clip_rect *boxes,
              int i, int DR1, int DR4)
 {
-       drm_i915_private_t *dev_priv = dev->dev_private;
-       struct drm_clip_rect box;
-       RING_LOCALS;
-
-       if (DRM_COPY_FROM_USER_UNCHECKED(&box, &boxes[i], sizeof(box))) {
-               return -EFAULT;
-       }
+       struct drm_clip_rect box = boxes[i];
 
        if (box.y2 <= box.y1 || box.x2 <= box.x1 || box.y2 <= 0 || box.x2 <= 0) {
                DRM_ERROR("Bad box %d,%d..%d,%d\n",
@@ -443,7 +401,6 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        struct drm_i915_master_private *master_priv = dev->primary->master->driver_priv;
-       RING_LOCALS;
 
        dev_priv->counter++;
        if (dev_priv->counter > 0x7FFFFFFFUL)
@@ -460,7 +417,9 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
 }
 
 static int i915_dispatch_cmdbuffer(struct drm_device * dev,
-                                  drm_i915_cmdbuffer_t * cmd)
+                                  drm_i915_cmdbuffer_t *cmd,
+                                  struct drm_clip_rect *cliprects,
+                                  void *cmdbuf)
 {
        int nbox = cmd->num_cliprects;
        int i = 0, count, ret;
@@ -476,13 +435,13 @@ static int i915_dispatch_cmdbuffer(struct drm_device * dev,
 
        for (i = 0; i < count; i++) {
                if (i < nbox) {
-                       ret = i915_emit_box(dev, cmd->cliprects, i,
+                       ret = i915_emit_box(dev, cliprects, i,
                                            cmd->DR1, cmd->DR4);
                        if (ret)
                                return ret;
                }
 
-               ret = i915_emit_cmds(dev, (int __user *)cmd->buf, cmd->sz / 4);
+               ret = i915_emit_cmds(dev, cmdbuf, cmd->sz / 4);
                if (ret)
                        return ret;
        }
@@ -492,13 +451,11 @@ static int i915_dispatch_cmdbuffer(struct drm_device * dev,
 }
 
 static int i915_dispatch_batchbuffer(struct drm_device * dev,
-                                    drm_i915_batchbuffer_t * batch)
+                                    drm_i915_batchbuffer_t * batch,
+                                    struct drm_clip_rect *cliprects)
 {
-       drm_i915_private_t *dev_priv = dev->dev_private;
-       struct drm_clip_rect __user *boxes = batch->cliprects;
        int nbox = batch->num_cliprects;
        int i = 0, count;
-       RING_LOCALS;
 
        if ((batch->start | batch->used) & 0x7) {
                DRM_ERROR("alignment");
@@ -511,7 +468,7 @@ static int i915_dispatch_batchbuffer(struct drm_device * dev,
 
        for (i = 0; i < count; i++) {
                if (i < nbox) {
-                       int ret = i915_emit_box(dev, boxes, i,
+                       int ret = i915_emit_box(dev, cliprects, i,
                                                batch->DR1, batch->DR4);
                        if (ret)
                                return ret;
@@ -547,15 +504,14 @@ static int i915_dispatch_flip(struct drm_device * dev)
        drm_i915_private_t *dev_priv = dev->dev_private;
        struct drm_i915_master_private *master_priv =
                dev->primary->master->driver_priv;
-       RING_LOCALS;
 
        if (!master_priv->sarea_priv)
                return -EINVAL;
 
-       DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
-                 __func__,
-                 dev_priv->current_page,
-                 master_priv->sarea_priv->pf_current_page);
+       DRM_DEBUG_DRIVER("%s: page=%d pfCurrentPage=%d\n",
+                         __func__,
+                        dev_priv->current_page,
+                        master_priv->sarea_priv->pf_current_page);
 
        i915_kernel_lost_context(dev);
 
@@ -600,7 +556,8 @@ static int i915_quiescent(struct drm_device * dev)
        drm_i915_private_t *dev_priv = dev->dev_private;
 
        i915_kernel_lost_context(dev);
-       return i915_wait_ring(dev, dev_priv->ring.Size - 8, __func__);
+       return intel_wait_ring_buffer(dev, &dev_priv->render_ring,
+                                     dev_priv->render_ring.size - 8);
 }
 
 static int i915_flush_ioctl(struct drm_device *dev, void *data,
@@ -626,28 +583,45 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
            master_priv->sarea_priv;
        drm_i915_batchbuffer_t *batch = data;
        int ret;
+       struct drm_clip_rect *cliprects = NULL;
 
        if (!dev_priv->allow_batchbuffer) {
                DRM_ERROR("Batchbuffer ioctl disabled\n");
                return -EINVAL;
        }
 
-       DRM_DEBUG("i915 batchbuffer, start %x used %d cliprects %d\n",
-                 batch->start, batch->used, batch->num_cliprects);
+       DRM_DEBUG_DRIVER("i915 batchbuffer, start %x used %d cliprects %d\n",
+                       batch->start, batch->used, batch->num_cliprects);
 
        RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
 
-       if (batch->num_cliprects && DRM_VERIFYAREA_READ(batch->cliprects,
-                                                      batch->num_cliprects *
-                                                      sizeof(struct drm_clip_rect)))
-               return -EFAULT;
+       if (batch->num_cliprects < 0)
+               return -EINVAL;
+
+       if (batch->num_cliprects) {
+               cliprects = kcalloc(batch->num_cliprects,
+                                   sizeof(struct drm_clip_rect),
+                                   GFP_KERNEL);
+               if (cliprects == NULL)
+                       return -ENOMEM;
+
+               ret = copy_from_user(cliprects, batch->cliprects,
+                                    batch->num_cliprects *
+                                    sizeof(struct drm_clip_rect));
+               if (ret != 0)
+                       goto fail_free;
+       }
 
        mutex_lock(&dev->struct_mutex);
-       ret = i915_dispatch_batchbuffer(dev, batch);
+       ret = i915_dispatch_batchbuffer(dev, batch, cliprects);
        mutex_unlock(&dev->struct_mutex);
 
        if (sarea_priv)
                sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
+
+fail_free:
+       kfree(cliprects);
+
        return ret;
 }
 
@@ -659,32 +633,58 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
        drm_i915_sarea_t *sarea_priv = (drm_i915_sarea_t *)
            master_priv->sarea_priv;
        drm_i915_cmdbuffer_t *cmdbuf = data;
+       struct drm_clip_rect *cliprects = NULL;
+       void *batch_data;
        int ret;
 
-       DRM_DEBUG("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
-                 cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
+       DRM_DEBUG_DRIVER("i915 cmdbuffer, buf %p sz %d cliprects %d\n",
+                       cmdbuf->buf, cmdbuf->sz, cmdbuf->num_cliprects);
 
        RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
 
-       if (cmdbuf->num_cliprects &&
-           DRM_VERIFYAREA_READ(cmdbuf->cliprects,
-                               cmdbuf->num_cliprects *
-                               sizeof(struct drm_clip_rect))) {
-               DRM_ERROR("Fault accessing cliprects\n");
-               return -EFAULT;
+       if (cmdbuf->num_cliprects < 0)
+               return -EINVAL;
+
+       batch_data = kmalloc(cmdbuf->sz, GFP_KERNEL);
+       if (batch_data == NULL)
+               return -ENOMEM;
+
+       ret = copy_from_user(batch_data, cmdbuf->buf, cmdbuf->sz);
+       if (ret != 0)
+               goto fail_batch_free;
+
+       if (cmdbuf->num_cliprects) {
+               cliprects = kcalloc(cmdbuf->num_cliprects,
+                                   sizeof(struct drm_clip_rect), GFP_KERNEL);
+               if (cliprects == NULL) {
+                       ret = -ENOMEM;
+                       goto fail_batch_free;
+               }
+
+               ret = copy_from_user(cliprects, cmdbuf->cliprects,
+                                    cmdbuf->num_cliprects *
+                                    sizeof(struct drm_clip_rect));
+               if (ret != 0)
+                       goto fail_clip_free;
        }
 
        mutex_lock(&dev->struct_mutex);
-       ret = i915_dispatch_cmdbuffer(dev, cmdbuf);
+       ret = i915_dispatch_cmdbuffer(dev, cmdbuf, cliprects, batch_data);
        mutex_unlock(&dev->struct_mutex);
        if (ret) {
                DRM_ERROR("i915_dispatch_cmdbuffer failed\n");
-               return ret;
+               goto fail_clip_free;
        }
 
        if (sarea_priv)
                sarea_priv->last_dispatch = READ_BREADCRUMB(dev_priv);
-       return 0;
+
+fail_clip_free:
+       kfree(cliprects);
+fail_batch_free:
+       kfree(batch_data);
+
+       return ret;
 }
 
 static int i915_flip_bufs(struct drm_device *dev, void *data,
@@ -692,7 +692,7 @@ static int i915_flip_bufs(struct drm_device *dev, void *data,
 {
        int ret;
 
-       DRM_DEBUG("%s\n", __func__);
+       DRM_DEBUG_DRIVER("%s\n", __func__);
 
        RING_LOCK_TEST_WITH_RETURN(dev, file_priv);
 
@@ -734,8 +734,22 @@ static int i915_getparam(struct drm_device *dev, void *data,
        case I915_PARAM_NUM_FENCES_AVAIL:
                value = dev_priv->num_fence_regs - dev_priv->fence_reg_start;
                break;
+       case I915_PARAM_HAS_OVERLAY:
+               value = dev_priv->overlay ? 1 : 0;
+               break;
+       case I915_PARAM_HAS_PAGEFLIPPING:
+               value = 1;
+               break;
+       case I915_PARAM_HAS_EXECBUF2:
+               /* depends on GEM */
+               value = dev_priv->has_gem;
+               break;
+       case I915_PARAM_HAS_BSD:
+               value = HAS_BSD(dev);
+               break;
        default:
-               DRM_DEBUG("Unknown parameter %d\n", param->param);
+               DRM_DEBUG_DRIVER("Unknown parameter %d\n",
+                                param->param);
                return -EINVAL;
        }
 
@@ -775,7 +789,8 @@ static int i915_setparam(struct drm_device *dev, void *data,
                dev_priv->fence_reg_start = param->value;
                break;
        default:
-               DRM_DEBUG("unknown parameter %d\n", param->param);
+               DRM_DEBUG_DRIVER("unknown parameter %d\n",
+                                       param->param);
                return -EINVAL;
        }
 
@@ -787,6 +802,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        drm_i915_hws_addr_t *hws = data;
+       struct intel_ring_buffer *ring = &dev_priv->render_ring;
 
        if (!I915_NEED_GFX_HWS(dev))
                return -EINVAL;
@@ -801,9 +817,9 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
                return 0;
        }
 
-       printk(KERN_DEBUG "set status page addr 0x%08x\n", (u32)hws->addr);
+       DRM_DEBUG_DRIVER("set status page addr 0x%08x\n", (u32)hws->addr);
 
-       dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
+       ring->status_page.gfx_addr = hws->addr & (0x1ffff<<12);
 
        dev_priv->hws_map.offset = dev->agp->base + hws->addr;
        dev_priv->hws_map.size = 4*1024;
@@ -814,21 +830,148 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
        drm_core_ioremap_wc(&dev_priv->hws_map, dev);
        if (dev_priv->hws_map.handle == NULL) {
                i915_dma_cleanup(dev);
-               dev_priv->status_gfx_addr = 0;
+               ring->status_page.gfx_addr = 0;
                DRM_ERROR("can not ioremap virtual address for"
                                " G33 hw status page\n");
                return -ENOMEM;
        }
-       dev_priv->hw_status_page = dev_priv->hws_map.handle;
+       ring->status_page.page_addr = dev_priv->hws_map.handle;
+       memset(ring->status_page.page_addr, 0, PAGE_SIZE);
+       I915_WRITE(HWS_PGA, ring->status_page.gfx_addr);
+
+       DRM_DEBUG_DRIVER("load hws HWS_PGA with gfx mem 0x%x\n",
+                        ring->status_page.gfx_addr);
+       DRM_DEBUG_DRIVER("load hws at %p\n",
+                        ring->status_page.page_addr);
+       return 0;
+}
+
+static int i915_get_bridge_dev(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
 
-       memset(dev_priv->hw_status_page, 0, PAGE_SIZE);
-       I915_WRITE(HWS_PGA, dev_priv->status_gfx_addr);
-       DRM_DEBUG("load hws HWS_PGA with gfx mem 0x%x\n",
-                       dev_priv->status_gfx_addr);
-       DRM_DEBUG("load hws at %p\n", dev_priv->hw_status_page);
+       dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0,0));
+       if (!dev_priv->bridge_dev) {
+               DRM_ERROR("bridge device not found\n");
+               return -1;
+       }
        return 0;
 }
 
+#define MCHBAR_I915 0x44
+#define MCHBAR_I965 0x48
+#define MCHBAR_SIZE (4*4096)
+
+#define DEVEN_REG 0x54
+#define   DEVEN_MCHBAR_EN (1 << 28)
+
+/* Allocate space for the MCH regs if needed, return nonzero on error */
+static int
+intel_alloc_mchbar_resource(struct drm_device *dev)
+{
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       int reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
+       u32 temp_lo, temp_hi = 0;
+       u64 mchbar_addr;
+       int ret = 0;
+
+       if (IS_I965G(dev))
+               pci_read_config_dword(dev_priv->bridge_dev, reg + 4, &temp_hi);
+       pci_read_config_dword(dev_priv->bridge_dev, reg, &temp_lo);
+       mchbar_addr = ((u64)temp_hi << 32) | temp_lo;
+
+       /* If ACPI doesn't have it, assume we need to allocate it ourselves */
+#ifdef CONFIG_PNP
+       if (mchbar_addr &&
+           pnp_range_reserved(mchbar_addr, mchbar_addr + MCHBAR_SIZE)) {
+               ret = 0;
+               goto out;
+       }
+#endif
+
+       /* Get some space for it */
+       ret = pci_bus_alloc_resource(dev_priv->bridge_dev->bus, &dev_priv->mch_res,
+                                    MCHBAR_SIZE, MCHBAR_SIZE,
+                                    PCIBIOS_MIN_MEM,
+                                    0,   pcibios_align_resource,
+                                    dev_priv->bridge_dev);
+       if (ret) {
+               DRM_DEBUG_DRIVER("failed bus alloc: %d\n", ret);
+               dev_priv->mch_res.start = 0;
+               goto out;
+       }
+
+       if (IS_I965G(dev))
+               pci_write_config_dword(dev_priv->bridge_dev, reg + 4,
+                                      upper_32_bits(dev_priv->mch_res.start));
+
+       pci_write_config_dword(dev_priv->bridge_dev, reg,
+                              lower_32_bits(dev_priv->mch_res.start));
+out:
+       return ret;
+}
+
+/* Setup MCHBAR if possible, return true if we should disable it again */
+static void
+intel_setup_mchbar(struct drm_device *dev)
+{
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       int mchbar_reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
+       u32 temp;
+       bool enabled;
+
+       dev_priv->mchbar_need_disable = false;
+
+       if (IS_I915G(dev) || IS_I915GM(dev)) {
+               pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
+               enabled = !!(temp & DEVEN_MCHBAR_EN);
+       } else {
+               pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
+               enabled = temp & 1;
+       }
+
+       /* If it's already enabled, don't have to do anything */
+       if (enabled)
+               return;
+
+       if (intel_alloc_mchbar_resource(dev))
+               return;
+
+       dev_priv->mchbar_need_disable = true;
+
+       /* Space is allocated or reserved, so enable it. */
+       if (IS_I915G(dev) || IS_I915GM(dev)) {
+               pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG,
+                                      temp | DEVEN_MCHBAR_EN);
+       } else {
+               pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
+               pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp | 1);
+       }
+}
+
+static void
+intel_teardown_mchbar(struct drm_device *dev)
+{
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       int mchbar_reg = IS_I965G(dev) ? MCHBAR_I965 : MCHBAR_I915;
+       u32 temp;
+
+       if (dev_priv->mchbar_need_disable) {
+               if (IS_I915G(dev) || IS_I915GM(dev)) {
+                       pci_read_config_dword(dev_priv->bridge_dev, DEVEN_REG, &temp);
+                       temp &= ~DEVEN_MCHBAR_EN;
+                       pci_write_config_dword(dev_priv->bridge_dev, DEVEN_REG, temp);
+               } else {
+                       pci_read_config_dword(dev_priv->bridge_dev, mchbar_reg, &temp);
+                       temp &= ~1;
+                       pci_write_config_dword(dev_priv->bridge_dev, mchbar_reg, temp);
+               }
+       }
+
+       if (dev_priv->mch_res.start)
+               release_resource(&dev_priv->mch_res);
+}
+
 /**
  * i915_probe_agp - get AGP bootup configuration
  * @pdev: PCI device
@@ -839,23 +982,17 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
  * 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.
  */
-static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
-                         unsigned long *preallocated_size)
+static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
+                         uint32_t *preallocated_size,
+                         uint32_t *start)
 {
-       struct pci_dev *bridge_dev;
+       struct drm_i915_private *dev_priv = dev->dev_private;
        u16 tmp = 0;
        unsigned long overhead;
        unsigned long stolen;
 
-       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);
+       pci_read_config_word(dev_priv->bridge_dev, INTEL_GMCH_CTRL, &tmp);
 
        *aperture_size = 1024 * 1024;
        *preallocated_size = 1024 * 1024;
@@ -880,101 +1017,379 @@ static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
         * Some of the preallocated space is taken by the GTT
         * and popup.  GTT is 1K per MB of aperture size, and popup is 4K.
         */
-       if (IS_G4X(dev))
+       if (IS_G4X(dev) || IS_PINEVIEW(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev))
                overhead = 4096;
        else
                overhead = (*aperture_size / 1024) + 4096;
 
-       switch (tmp & INTEL_GMCH_GMS_MASK) {
-       case INTEL_855_GMCH_GMS_DISABLED:
-               DRM_ERROR("video memory is disabled\n");
-               return -1;
-       case INTEL_855_GMCH_GMS_STOLEN_1M:
-               stolen = 1 * 1024 * 1024;
-               break;
-       case INTEL_855_GMCH_GMS_STOLEN_4M:
-               stolen = 4 * 1024 * 1024;
-               break;
-       case INTEL_855_GMCH_GMS_STOLEN_8M:
-               stolen = 8 * 1024 * 1024;
-               break;
-       case INTEL_855_GMCH_GMS_STOLEN_16M:
-               stolen = 16 * 1024 * 1024;
-               break;
-       case INTEL_855_GMCH_GMS_STOLEN_32M:
-               stolen = 32 * 1024 * 1024;
-               break;
-       case INTEL_915G_GMCH_GMS_STOLEN_48M:
-               stolen = 48 * 1024 * 1024;
-               break;
-       case INTEL_915G_GMCH_GMS_STOLEN_64M:
-               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;
-               break;
-       default:
-               DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
-                       tmp & INTEL_GMCH_GMS_MASK);
-               return -1;
+       if (IS_GEN6(dev)) {
+               /* SNB has memory control reg at 0x50.w */
+               pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &tmp);
+
+               switch (tmp & SNB_GMCH_GMS_STOLEN_MASK) {
+               case INTEL_855_GMCH_GMS_DISABLED:
+                       DRM_ERROR("video memory is disabled\n");
+                       return -1;
+               case SNB_GMCH_GMS_STOLEN_32M:
+                       stolen = 32 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_64M:
+                       stolen = 64 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_96M:
+                       stolen = 96 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_128M:
+                       stolen = 128 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_160M:
+                       stolen = 160 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_192M:
+                       stolen = 192 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_224M:
+                       stolen = 224 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_256M:
+                       stolen = 256 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_288M:
+                       stolen = 288 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_320M:
+                       stolen = 320 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_352M:
+                       stolen = 352 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_384M:
+                       stolen = 384 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_416M:
+                       stolen = 416 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_448M:
+                       stolen = 448 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_480M:
+                       stolen = 480 * 1024 * 1024;
+                       break;
+               case SNB_GMCH_GMS_STOLEN_512M:
+                       stolen = 512 * 1024 * 1024;
+                       break;
+               default:
+                       DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
+                                 tmp & SNB_GMCH_GMS_STOLEN_MASK);
+                       return -1;
+               }
+       } else {
+               switch (tmp & INTEL_GMCH_GMS_MASK) {
+               case INTEL_855_GMCH_GMS_DISABLED:
+                       DRM_ERROR("video memory is disabled\n");
+                       return -1;
+               case INTEL_855_GMCH_GMS_STOLEN_1M:
+                       stolen = 1 * 1024 * 1024;
+                       break;
+               case INTEL_855_GMCH_GMS_STOLEN_4M:
+                       stolen = 4 * 1024 * 1024;
+                       break;
+               case INTEL_855_GMCH_GMS_STOLEN_8M:
+                       stolen = 8 * 1024 * 1024;
+                       break;
+               case INTEL_855_GMCH_GMS_STOLEN_16M:
+                       stolen = 16 * 1024 * 1024;
+                       break;
+               case INTEL_855_GMCH_GMS_STOLEN_32M:
+                       stolen = 32 * 1024 * 1024;
+                       break;
+               case INTEL_915G_GMCH_GMS_STOLEN_48M:
+                       stolen = 48 * 1024 * 1024;
+                       break;
+               case INTEL_915G_GMCH_GMS_STOLEN_64M:
+                       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;
+                       break;
+               default:
+                       DRM_ERROR("unexpected GMCH_GMS value: 0x%02x\n",
+                                 tmp & INTEL_GMCH_GMS_MASK);
+                       return -1;
+               }
        }
+
        *preallocated_size = stolen - overhead;
+       *start = overhead;
 
        return 0;
 }
 
-static int i915_load_modeset_init(struct drm_device *dev)
+#define PTE_ADDRESS_MASK               0xfffff000
+#define PTE_ADDRESS_MASK_HIGH          0x000000f0 /* i915+ */
+#define PTE_MAPPING_TYPE_UNCACHED      (0 << 1)
+#define PTE_MAPPING_TYPE_DCACHE                (1 << 1) /* i830 only */
+#define PTE_MAPPING_TYPE_CACHED                (3 << 1)
+#define PTE_MAPPING_TYPE_MASK          (3 << 1)
+#define PTE_VALID                      (1 << 0)
+
+/**
+ * i915_gtt_to_phys - take a GTT address and turn it into a physical one
+ * @dev: drm device
+ * @gtt_addr: address to translate
+ *
+ * Some chip functions require allocations from stolen space but need the
+ * physical address of the memory in question.  We use this routine
+ * to get a physical address suitable for register programming from a given
+ * GTT address.
+ */
+static unsigned long i915_gtt_to_phys(struct drm_device *dev,
+                                     unsigned long gtt_addr)
+{
+       unsigned long *gtt;
+       unsigned long entry, phys;
+       int gtt_bar = IS_I9XX(dev) ? 0 : 1;
+       int gtt_offset, gtt_size;
+
+       if (IS_I965G(dev)) {
+               if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
+                       gtt_offset = 2*1024*1024;
+                       gtt_size = 2*1024*1024;
+               } else {
+                       gtt_offset = 512*1024;
+                       gtt_size = 512*1024;
+               }
+       } else {
+               gtt_bar = 3;
+               gtt_offset = 0;
+               gtt_size = pci_resource_len(dev->pdev, gtt_bar);
+       }
+
+       gtt = ioremap_wc(pci_resource_start(dev->pdev, gtt_bar) + gtt_offset,
+                        gtt_size);
+       if (!gtt) {
+               DRM_ERROR("ioremap of GTT failed\n");
+               return 0;
+       }
+
+       entry = *(volatile u32 *)(gtt + (gtt_addr / 1024));
+
+       DRM_DEBUG_DRIVER("GTT addr: 0x%08lx, PTE: 0x%08lx\n", gtt_addr, entry);
+
+       /* Mask out these reserved bits on this hardware. */
+       if (!IS_I9XX(dev) || IS_I915G(dev) || IS_I915GM(dev) ||
+           IS_I945G(dev) || IS_I945GM(dev)) {
+               entry &= ~PTE_ADDRESS_MASK_HIGH;
+       }
+
+       /* If it's not a mapping type we know, then bail. */
+       if ((entry & PTE_MAPPING_TYPE_MASK) != PTE_MAPPING_TYPE_UNCACHED &&
+           (entry & PTE_MAPPING_TYPE_MASK) != PTE_MAPPING_TYPE_CACHED) {
+               iounmap(gtt);
+               return 0;
+       }
+
+       if (!(entry & PTE_VALID)) {
+               DRM_ERROR("bad GTT entry in stolen space\n");
+               iounmap(gtt);
+               return 0;
+       }
+
+       iounmap(gtt);
+
+       phys =(entry & PTE_ADDRESS_MASK) |
+               ((uint64_t)(entry & PTE_ADDRESS_MASK_HIGH) << (32 - 4));
+
+       DRM_DEBUG_DRIVER("GTT addr: 0x%08lx, phys addr: 0x%08lx\n", gtt_addr, phys);
+
+       return phys;
+}
+
+static void i915_warn_stolen(struct drm_device *dev)
+{
+       DRM_ERROR("not enough stolen space for compressed buffer, disabling\n");
+       DRM_ERROR("hint: you may be able to increase stolen memory size in the BIOS to avoid this\n");
+}
+
+static void i915_setup_compression(struct drm_device *dev, int size)
 {
        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;
+       struct drm_mm_node *compressed_fb, *compressed_llb;
+       unsigned long cfb_base;
+       unsigned long ll_base = 0;
+
+       /* Leave 1M for line length buffer & misc. */
+       compressed_fb = drm_mm_search_free(&dev_priv->vram, size, 4096, 0);
+       if (!compressed_fb) {
+               dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
+               i915_warn_stolen(dev);
+               return;
+       }
 
-       dev->devname = kstrdup(DRIVER_NAME, GFP_KERNEL);
-       if (!dev->devname) {
-               ret = -ENOMEM;
-               goto out;
+       compressed_fb = drm_mm_get_block(compressed_fb, size, 4096);
+       if (!compressed_fb) {
+               i915_warn_stolen(dev);
+               dev_priv->no_fbc_reason = FBC_STOLEN_TOO_SMALL;
+               return;
        }
 
-       dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
-               0xff000000;
+       cfb_base = i915_gtt_to_phys(dev, compressed_fb->start);
+       if (!cfb_base) {
+               DRM_ERROR("failed to get stolen phys addr, disabling FBC\n");
+               drm_mm_put_block(compressed_fb);
+       }
+
+       if (!IS_GM45(dev)) {
+               compressed_llb = drm_mm_search_free(&dev_priv->vram, 4096,
+                                                   4096, 0);
+               if (!compressed_llb) {
+                       i915_warn_stolen(dev);
+                       return;
+               }
+
+               compressed_llb = drm_mm_get_block(compressed_llb, 4096, 4096);
+               if (!compressed_llb) {
+                       i915_warn_stolen(dev);
+                       return;
+               }
+
+               ll_base = i915_gtt_to_phys(dev, compressed_llb->start);
+               if (!ll_base) {
+                       DRM_ERROR("failed to get stolen phys addr, disabling FBC\n");
+                       drm_mm_put_block(compressed_fb);
+                       drm_mm_put_block(compressed_llb);
+               }
+       }
+
+       dev_priv->cfb_size = size;
+
+       intel_disable_fbc(dev);
+       dev_priv->compressed_fb = compressed_fb;
+
+       if (IS_GM45(dev)) {
+               I915_WRITE(DPFC_CB_BASE, compressed_fb->start);
+       } else {
+               I915_WRITE(FBC_CFB_BASE, cfb_base);
+               I915_WRITE(FBC_LL_BASE, ll_base);
+               dev_priv->compressed_llb = compressed_llb;
+       }
+
+       DRM_DEBUG("FBC base 0x%08lx, ll base 0x%08lx, size %dM\n", cfb_base,
+                 ll_base, size >> 20);
+}
+
+static void i915_cleanup_compression(struct drm_device *dev)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
 
-       if (IS_MOBILE(dev) || IS_I9XX(dev))
-               dev_priv->cursor_needs_physical = true;
+       drm_mm_put_block(dev_priv->compressed_fb);
+       if (!IS_GM45(dev))
+               drm_mm_put_block(dev_priv->compressed_llb);
+}
+
+/* true = enable decode, false = disable decoder */
+static unsigned int i915_vga_set_decode(void *cookie, bool state)
+{
+       struct drm_device *dev = cookie;
+
+       intel_modeset_vga_set_state(dev, state);
+       if (state)
+               return VGA_RSRC_LEGACY_IO | VGA_RSRC_LEGACY_MEM |
+                      VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
        else
-               dev_priv->cursor_needs_physical = false;
+               return VGA_RSRC_NORMAL_IO | VGA_RSRC_NORMAL_MEM;
+}
+
+static void i915_switcheroo_set_state(struct pci_dev *pdev, enum vga_switcheroo_state state)
+{
+       struct drm_device *dev = pci_get_drvdata(pdev);
+       pm_message_t pmm = { .event = PM_EVENT_SUSPEND };
+       if (state == VGA_SWITCHEROO_ON) {
+               printk(KERN_INFO "i915: switched on\n");
+               /* i915 resume handler doesn't set to D0 */
+               pci_set_power_state(dev->pdev, PCI_D0);
+               i915_resume(dev);
+               drm_kms_helper_poll_enable(dev);
+       } else {
+               printk(KERN_ERR "i915: switched off\n");
+               drm_kms_helper_poll_disable(dev);
+               i915_suspend(dev, pmm);
+       }
+}
 
-       if (IS_I965G(dev) || IS_G33(dev))
-               dev_priv->cursor_needs_physical = false;
+static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
+{
+       struct drm_device *dev = pci_get_drvdata(pdev);
+       bool can_switch;
 
-       ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
-       if (ret)
-               goto kfree_devname;
+       spin_lock(&dev->count_lock);
+       can_switch = (dev->open_count == 0);
+       spin_unlock(&dev->count_lock);
+       return can_switch;
+}
+
+static int i915_load_modeset_init(struct drm_device *dev,
+                                 unsigned long prealloc_start,
+                                 unsigned long prealloc_size,
+                                 unsigned long agp_size)
+{
+       struct drm_i915_private *dev_priv = dev->dev_private;
+       int fb_bar = IS_I9XX(dev) ? 2 : 0;
+       int ret = 0;
+
+       dev->mode_config.fb_base = drm_get_resource_start(dev, fb_bar) &
+               0xff000000;
 
        /* Basic memrange allocator for stolen space (aka vram) */
        drm_mm_init(&dev_priv->vram, 0, prealloc_size);
+       DRM_INFO("set up %ldM of stolen space\n", prealloc_size / (1024*1024));
 
-       /* Let GEM Manage from end of prealloc space to end of aperture */
-       i915_gem_do_init(dev, prealloc_size, agp_size);
+       /* We're off and running w/KMS */
+       dev_priv->mm.suspended = 0;
 
+       /* Let GEM Manage from end of prealloc space to end of aperture.
+        *
+        * However, leave one page at the end still bound to the scratch page.
+        * There are a number of places where the hardware apparently
+        * prefetches past the end of the object, and we've seen multiple
+        * hangs with the GPU head pointer stuck in a batchbuffer bound
+        * at the last page of the aperture.  One page should be enough to
+        * keep any prefetching inside of the aperture.
+        */
+       i915_gem_do_init(dev, prealloc_size, agp_size - 4096);
+
+       mutex_lock(&dev->struct_mutex);
        ret = i915_gem_init_ringbuffer(dev);
+       mutex_unlock(&dev->struct_mutex);
        if (ret)
-               goto kfree_devname;
+               goto out;
+
+       /* Try to set up FBC with a reasonable compressed buffer size */
+       if (I915_HAS_FBC(dev) && i915_powersave) {
+               int cfb_size;
+
+               /* Try to get an 8M buffer... */
+               if (prealloc_size > (9*1024*1024))
+                       cfb_size = 8*1024*1024;
+               else /* fall back to 7/8 of the stolen space */
+                       cfb_size = prealloc_size * 7 / 8;
+               i915_setup_compression(dev, cfb_size);
+       }
 
        /* Allow hardware batchbuffers unless told otherwise.
         */
@@ -984,16 +1399,22 @@ static int i915_load_modeset_init(struct drm_device *dev)
        if (ret)
                DRM_INFO("failed to find VBIOS tables\n");
 
-       ret = drm_irq_install(dev);
+       /* if we have > 1 VGA cards, then disable the radeon VGA resources */
+       ret = vga_client_register(dev->pdev, dev, NULL, i915_vga_set_decode);
        if (ret)
-               goto destroy_ringbuffer;
+               goto cleanup_ringbuffer;
 
-       /* FIXME: re-add hotplug support */
-#if 0
-       ret = drm_hotplug_init(dev);
+       ret = vga_switcheroo_register_client(dev->pdev,
+                                            i915_switcheroo_set_state,
+                                            i915_switcheroo_can_switch);
        if (ret)
-               goto destroy_ringbuffer;
-#endif
+               goto cleanup_vga_client;
+
+       intel_modeset_init(dev);
+
+       ret = drm_irq_install(dev);
+       if (ret)
+               goto cleanup_vga_switcheroo;
 
        /* Always safe in the mode setting case. */
        /* FIXME: do pre/post-mode set stuff in core KMS code */
@@ -1005,16 +1426,23 @@ static int i915_load_modeset_init(struct drm_device *dev)
 
        I915_WRITE(INSTPM, (1 << 5) | (1 << 21));
 
-       intel_modeset_init(dev);
-
-       drm_helper_initial_config(dev, false);
+       ret = intel_fbdev_init(dev);
+       if (ret)
+               goto cleanup_irq;
 
+       drm_kms_helper_poll_init(dev);
        return 0;
 
-destroy_ringbuffer:
+cleanup_irq:
+       drm_irq_uninstall(dev);
+cleanup_vga_switcheroo:
+       vga_switcheroo_unregister_client(dev->pdev);
+cleanup_vga_client:
+       vga_client_register(dev->pdev, NULL, NULL, NULL);
+cleanup_ringbuffer:
+       mutex_lock(&dev->struct_mutex);
        i915_gem_cleanup_ringbuffer(dev);
-kfree_devname:
-       kfree(dev->devname);
+       mutex_unlock(&dev->struct_mutex);
 out:
        return ret;
 }
@@ -1023,7 +1451,7 @@ 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);
+       master_priv = kzalloc(sizeof(*master_priv), GFP_KERNEL);
        if (!master_priv)
                return -ENOMEM;
 
@@ -1038,11 +1466,563 @@ void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
        if (!master_priv)
                return;
 
-       drm_free(master_priv, sizeof(*master_priv), DRM_MEM_DRIVER);
+       kfree(master_priv);
 
        master->driver_priv = NULL;
 }
 
+static void i915_pineview_get_mem_freq(struct drm_device *dev)
+{
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       u32 tmp;
+
+       tmp = I915_READ(CLKCFG);
+
+       switch (tmp & CLKCFG_FSB_MASK) {
+       case CLKCFG_FSB_533:
+               dev_priv->fsb_freq = 533; /* 133*4 */
+               break;
+       case CLKCFG_FSB_800:
+               dev_priv->fsb_freq = 800; /* 200*4 */
+               break;
+       case CLKCFG_FSB_667:
+               dev_priv->fsb_freq =  667; /* 167*4 */
+               break;
+       case CLKCFG_FSB_400:
+               dev_priv->fsb_freq = 400; /* 100*4 */
+               break;
+       }
+
+       switch (tmp & CLKCFG_MEM_MASK) {
+       case CLKCFG_MEM_533:
+               dev_priv->mem_freq = 533;
+               break;
+       case CLKCFG_MEM_667:
+               dev_priv->mem_freq = 667;
+               break;
+       case CLKCFG_MEM_800:
+               dev_priv->mem_freq = 800;
+               break;
+       }
+
+       /* detect pineview DDR3 setting */
+       tmp = I915_READ(CSHRDDR3CTL);
+       dev_priv->is_ddr3 = (tmp & CSHRDDR3CTL_DDR3) ? 1 : 0;
+}
+
+static void i915_ironlake_get_mem_freq(struct drm_device *dev)
+{
+       drm_i915_private_t *dev_priv = dev->dev_private;
+       u16 ddrpll, csipll;
+
+       ddrpll = I915_READ16(DDRMPLL1);
+       csipll = I915_READ16(CSIPLL0);
+
+       switch (ddrpll & 0xff) {
+       case 0xc:
+               dev_priv->mem_freq = 800;
+               break;
+       case 0x10:
+               dev_priv->mem_freq = 1066;
+               break;
+       case 0x14:
+               dev_priv->mem_freq = 1333;
+               break;
+       case 0x18:
+               dev_priv->mem_freq = 1600;
+               break;
+       default:
+               DRM_DEBUG_DRIVER("unknown memory frequency 0x%02x\n",
+                                ddrpll & 0xff);
+               dev_priv->mem_freq = 0;
+               break;
+       }
+
+       dev_priv->r_t = dev_priv->mem_freq;
+
+       switch (csipll & 0x3ff) {
+       case 0x00c:
+               dev_priv->fsb_freq = 3200;
+               break;
+       case 0x00e:
+               dev_priv->fsb_freq = 3733;
+               break;
+       case 0x010:
+               dev_priv->fsb_freq = 4266;
+               break;
+       case 0x012:
+               dev_priv->fsb_freq = 4800;
+               break;
+       case 0x014:
+               dev_priv->fsb_freq = 5333;
+               break;
+       case 0x016:
+               dev_priv->fsb_freq = 5866;
+               break;
+       case 0x018:
+               dev_priv->fsb_freq = 6400;
+               break;
+       default:
+               DRM_DEBUG_DRIVER("unknown fsb frequency 0x%04x\n",
+                                csipll & 0x3ff);
+               dev_priv->fsb_freq = 0;
+               break;
+       }
+
+       if (dev_priv->fsb_freq == 3200) {
+               dev_priv->c_m = 0;
+       } else if (dev_priv->fsb_freq > 3200 && dev_priv->fsb_freq <= 4800) {
+               dev_priv->c_m = 1;
+       } else {
+               dev_priv->c_m = 2;
+       }
+}
+
+struct v_table {
+       u8 vid;
+       unsigned long vd; /* in .1 mil */
+       unsigned long vm; /* in .1 mil */
+       u8 pvid;
+};
+
+static struct v_table v_table[] = {
+       { 0, 16125, 15000, 0x7f, },
+       { 1, 16000, 14875, 0x7e, },
+       { 2, 15875, 14750, 0x7d, },
+       { 3, 15750, 14625, 0x7c, },
+       { 4, 15625, 14500, 0x7b, },
+       { 5, 15500, 14375, 0x7a, },
+       { 6, 15375, 14250, 0x79, },
+       { 7, 15250, 14125, 0x78, },
+       { 8, 15125, 14000, 0x77, },
+       { 9, 15000, 13875, 0x76, },
+       { 10, 14875, 13750, 0x75, },
+       { 11, 14750, 13625, 0x74, },
+       { 12, 14625, 13500, 0x73, },
+       { 13, 14500, 13375, 0x72, },
+       { 14, 14375, 13250, 0x71, },
+       { 15, 14250, 13125, 0x70, },
+       { 16, 14125, 13000, 0x6f, },
+       { 17, 14000, 12875, 0x6e, },
+       { 18, 13875, 12750, 0x6d, },
+       { 19, 13750, 12625, 0x6c, },
+       { 20, 13625, 12500, 0x6b, },
+       { 21, 13500, 12375, 0x6a, },
+       { 22, 13375, 12250, 0x69, },
+       { 23, 13250, 12125, 0x68, },
+       { 24, 13125, 12000, 0x67, },
+       { 25, 13000, 11875, 0x66, },
+       { 26, 12875, 11750, 0x65, },
+       { 27, 12750, 11625, 0x64, },
+       { 28, 12625, 11500, 0x63, },
+       { 29, 12500, 11375, 0x62, },
+       { 30, 12375, 11250, 0x61, },
+       { 31, 12250, 11125, 0x60, },
+       { 32, 12125, 11000, 0x5f, },
+       { 33, 12000, 10875, 0x5e, },
+       { 34, 11875, 10750, 0x5d, },
+       { 35, 11750, 10625, 0x5c, },
+       { 36, 11625, 10500, 0x5b, },
+       { 37, 11500, 10375, 0x5a, },
+       { 38, 11375, 10250, 0x59, },
+       { 39, 11250, 10125, 0x58, },
+       { 40, 11125, 10000, 0x57, },
+       { 41, 11000, 9875, 0x56, },
+       { 42, 10875, 9750, 0x55, },
+       { 43, 10750, 9625, 0x54, },
+       { 44, 10625, 9500, 0x53, },
+       { 45, 10500, 9375, 0x52, },
+       { 46, 10375, 9250, 0x51, },
+       { 47, 10250, 9125, 0x50, },
+       { 48, 10125, 9000, 0x4f, },
+       { 49, 10000, 8875, 0x4e, },
+       { 50, 9875, 8750, 0x4d, },
+       { 51, 9750, 8625, 0x4c, },
+       { 52, 9625, 8500, 0x4b, },
+       { 53, 9500, 8375, 0x4a, },
+       { 54, 9375, 8250, 0x49, },
+       { 55, 9250, 8125, 0x48, },
+       { 56, 9125, 8000, 0x47, },
+       { 57, 9000, 7875, 0x46, },
+       { 58, 8875, 7750, 0x45, },
+       { 59, 8750, 7625, 0x44, },
+       { 60, 8625, 7500, 0x43, },
+       { 61, 8500, 7375, 0x42, },
+       { 62, 8375, 7250, 0x41, },
+       { 63, 8250, 7125, 0x40, },
+       { 64, 8125, 7000, 0x3f, },
+       { 65, 8000, 6875, 0x3e, },
+       { 66, 7875, 6750, 0x3d, },
+       { 67, 7750, 6625, 0x3c, },
+       { 68, 7625, 6500, 0x3b, },
+       { 69, 7500, 6375, 0x3a, },
+       { 70, 7375, 6250, 0x39, },
+       { 71, 7250, 6125, 0x38, },
+       { 72, 7125, 6000, 0x37, },
+       { 73, 7000, 5875, 0x36, },
+       { 74, 6875, 5750, 0x35, },
+       { 75, 6750, 5625, 0x34, },
+       { 76, 6625, 5500, 0x33, },
+       { 77, 6500, 5375, 0x32, },
+       { 78, 6375, 5250, 0x31, },
+       { 79, 6250, 5125, 0x30, },
+       { 80, 6125, 5000, 0x2f, },
+       { 81, 6000, 4875, 0x2e, },
+       { 82, 5875, 4750, 0x2d, },
+       { 83, 5750, 4625, 0x2c, },
+       { 84, 5625, 4500, 0x2b, },
+       { 85, 5500, 4375, 0x2a, },
+       { 86, 5375, 4250, 0x29, },
+       { 87, 5250, 4125, 0x28, },
+       { 88, 5125, 4000, 0x27, },
+       { 89, 5000, 3875, 0x26, },
+       { 90, 4875, 3750, 0x25, },
+       { 91, 4750, 3625, 0x24, },
+       { 92, 4625, 3500, 0x23, },
+       { 93, 4500, 3375, 0x22, },
+       { 94, 4375, 3250, 0x21, },
+       { 95, 4250, 3125, 0x20, },
+       { 96, 4125, 3000, 0x1f, },
+       { 97, 4125, 3000, 0x1e, },
+       { 98, 4125, 3000, 0x1d, },
+       { 99, 4125, 3000, 0x1c, },
+       { 100, 4125, 3000, 0x1b, },
+       { 101, 4125, 3000, 0x1a, },
+       { 102, 4125, 3000, 0x19, },
+       { 103, 4125, 3000, 0x18, },
+       { 104, 4125, 3000, 0x17, },
+       { 105, 4125, 3000, 0x16, },
+       { 106, 4125, 3000, 0x15, },
+       { 107, 4125, 3000, 0x14, },
+       { 108, 4125, 3000, 0x13, },
+       { 109, 4125, 3000, 0x12, },
+       { 110, 4125, 3000, 0x11, },
+       { 111, 4125, 3000, 0x10, },
+       { 112, 4125, 3000, 0x0f, },
+       { 113, 4125, 3000, 0x0e, },
+       { 114, 4125, 3000, 0x0d, },
+       { 115, 4125, 3000, 0x0c, },
+       { 116, 4125, 3000, 0x0b, },
+       { 117, 4125, 3000, 0x0a, },
+       { 118, 4125, 3000, 0x09, },
+       { 119, 4125, 3000, 0x08, },
+       { 120, 1125, 0, 0x07, },
+       { 121, 1000, 0, 0x06, },
+       { 122, 875, 0, 0x05, },
+       { 123, 750, 0, 0x04, },
+       { 124, 625, 0, 0x03, },
+       { 125, 500, 0, 0x02, },
+       { 126, 375, 0, 0x01, },
+       { 127, 0, 0, 0x00, },
+};
+
+struct cparams {
+       int i;
+       int t;
+       int m;
+       int c;
+};
+
+static struct cparams cparams[] = {
+       { 1, 1333, 301, 28664 },
+       { 1, 1066, 294, 24460 },
+       { 1, 800, 294, 25192 },
+       { 0, 1333, 276, 27605 },
+       { 0, 1066, 276, 27605 },
+       { 0, 800, 231, 23784 },
+};
+
+unsigned long i915_chipset_val(struct drm_i915_private *dev_priv)
+{
+       u64 total_count, diff, ret;
+       u32 count1, count2, count3, m = 0, c = 0;
+       unsigned long now = jiffies_to_msecs(jiffies), diff1;
+       int i;
+
+       diff1 = now - dev_priv->last_time1;
+
+       count1 = I915_READ(DMIEC);
+       count2 = I915_READ(DDREC);
+       count3 = I915_READ(CSIEC);
+
+       total_count = count1 + count2 + count3;
+
+       /* FIXME: handle per-counter overflow */
+       if (total_count < dev_priv->last_count1) {
+               diff = ~0UL - dev_priv->last_count1;
+               diff += total_count;
+       } else {
+               diff = total_count - dev_priv->last_count1;
+       }
+
+       for (i = 0; i < ARRAY_SIZE(cparams); i++) {
+               if (cparams[i].i == dev_priv->c_m &&
+                   cparams[i].t == dev_priv->r_t) {
+                       m = cparams[i].m;
+                       c = cparams[i].c;
+                       break;
+               }
+       }
+
+       div_u64(diff, diff1);
+       ret = ((m * diff) + c);
+       div_u64(ret, 10);
+
+       dev_priv->last_count1 = total_count;
+       dev_priv->last_time1 = now;
+
+       return ret;
+}
+
+unsigned long i915_mch_val(struct drm_i915_private *dev_priv)
+{
+       unsigned long m, x, b;
+       u32 tsfs;
+
+       tsfs = I915_READ(TSFS);
+
+       m = ((tsfs & TSFS_SLOPE_MASK) >> TSFS_SLOPE_SHIFT);
+       x = I915_READ8(TR1);
+
+       b = tsfs & TSFS_INTR_MASK;
+
+       return ((m * x) / 127) - b;
+}
+
+static unsigned long pvid_to_extvid(struct drm_i915_private *dev_priv, u8 pxvid)
+{
+       unsigned long val = 0;
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(v_table); i++) {
+               if (v_table[i].pvid == pxvid) {
+                       if (IS_MOBILE(dev_priv->dev))
+                               val = v_table[i].vm;
+                       else
+                               val = v_table[i].vd;
+               }
+       }
+
+       return val;
+}
+
+void i915_update_gfx_val(struct drm_i915_private *dev_priv)
+{
+       struct timespec now, diff1;
+       u64 diff;
+       unsigned long diffms;
+       u32 count;
+
+       getrawmonotonic(&now);
+       diff1 = timespec_sub(now, dev_priv->last_time2);
+
+       /* Don't divide by 0 */
+       diffms = diff1.tv_sec * 1000 + diff1.tv_nsec / 1000000;
+       if (!diffms)
+               return;
+
+       count = I915_READ(GFXEC);
+
+       if (count < dev_priv->last_count2) {
+               diff = ~0UL - dev_priv->last_count2;
+               diff += count;
+       } else {
+               diff = count - dev_priv->last_count2;
+       }
+
+       dev_priv->last_count2 = count;
+       dev_priv->last_time2 = now;
+
+       /* More magic constants... */
+       diff = diff * 1181;
+       div_u64(diff, diffms * 10);
+       dev_priv->gfx_power = diff;
+}
+
+unsigned long i915_gfx_val(struct drm_i915_private *dev_priv)
+{
+       unsigned long t, corr, state1, corr2, state2;
+       u32 pxvid, ext_v;
+
+       pxvid = I915_READ(PXVFREQ_BASE + (dev_priv->cur_delay * 4));
+       pxvid = (pxvid >> 24) & 0x7f;
+       ext_v = pvid_to_extvid(dev_priv, pxvid);
+
+       state1 = ext_v;
+
+       t = i915_mch_val(dev_priv);
+
+       /* Revel in the empirically derived constants */
+
+       /* Correction factor in 1/100000 units */
+       if (t > 80)
+               corr = ((t * 2349) + 135940);
+       else if (t >= 50)
+               corr = ((t * 964) + 29317);
+       else /* < 50 */
+               corr = ((t * 301) + 1004);
+
+       corr = corr * ((150142 * state1) / 10000 - 78642);
+       corr /= 100000;
+       corr2 = (corr * dev_priv->corr);
+
+       state2 = (corr2 * state1) / 10000;
+       state2 /= 100; /* convert to mW */
+
+       i915_update_gfx_val(dev_priv);
+
+       return dev_priv->gfx_power + state2;
+}
+
+/* Global for IPS driver to get at the current i915 device */
+static struct drm_i915_private *i915_mch_dev;
+/*
+ * Lock protecting IPS related data structures
+ *   - i915_mch_dev
+ *   - dev_priv->max_delay
+ *   - dev_priv->min_delay
+ *   - dev_priv->fmax
+ *   - dev_priv->gpu_busy
+ */
+DEFINE_SPINLOCK(mchdev_lock);
+
+/**
+ * i915_read_mch_val - return value for IPS use
+ *
+ * Calculate and return a value for the IPS driver to use when deciding whether
+ * we have thermal and power headroom to increase CPU or GPU power budget.
+ */
+unsigned long i915_read_mch_val(void)
+{
+       struct drm_i915_private *dev_priv;
+       unsigned long chipset_val, graphics_val, ret = 0;
+
+       spin_lock(&mchdev_lock);
+       if (!i915_mch_dev)
+               goto out_unlock;
+       dev_priv = i915_mch_dev;
+
+       chipset_val = i915_chipset_val(dev_priv);
+       graphics_val = i915_gfx_val(dev_priv);
+
+       ret = chipset_val + graphics_val;
+
+out_unlock:
+       spin_unlock(&mchdev_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(i915_read_mch_val);
+
+/**
+ * i915_gpu_raise - raise GPU frequency limit
+ *
+ * Raise the limit; IPS indicates we have thermal headroom.
+ */
+bool i915_gpu_raise(void)
+{
+       struct drm_i915_private *dev_priv;
+       bool ret = true;
+
+       spin_lock(&mchdev_lock);
+       if (!i915_mch_dev) {
+               ret = false;
+               goto out_unlock;
+       }
+       dev_priv = i915_mch_dev;
+
+       if (dev_priv->max_delay > dev_priv->fmax)
+               dev_priv->max_delay--;
+
+out_unlock:
+       spin_unlock(&mchdev_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_raise);
+
+/**
+ * i915_gpu_lower - lower GPU frequency limit
+ *
+ * IPS indicates we're close to a thermal limit, so throttle back the GPU
+ * frequency maximum.
+ */
+bool i915_gpu_lower(void)
+{
+       struct drm_i915_private *dev_priv;
+       bool ret = true;
+
+       spin_lock(&mchdev_lock);
+       if (!i915_mch_dev) {
+               ret = false;
+               goto out_unlock;
+       }
+       dev_priv = i915_mch_dev;
+
+       if (dev_priv->max_delay < dev_priv->min_delay)
+               dev_priv->max_delay++;
+
+out_unlock:
+       spin_unlock(&mchdev_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_lower);
+
+/**
+ * i915_gpu_busy - indicate GPU business to IPS
+ *
+ * Tell the IPS driver whether or not the GPU is busy.
+ */
+bool i915_gpu_busy(void)
+{
+       struct drm_i915_private *dev_priv;
+       bool ret = false;
+
+       spin_lock(&mchdev_lock);
+       if (!i915_mch_dev)
+               goto out_unlock;
+       dev_priv = i915_mch_dev;
+
+       ret = dev_priv->busy;
+
+out_unlock:
+       spin_unlock(&mchdev_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_busy);
+
+/**
+ * i915_gpu_turbo_disable - disable graphics turbo
+ *
+ * Disable graphics turbo by resetting the max frequency and setting the
+ * current frequency to the default.
+ */
+bool i915_gpu_turbo_disable(void)
+{
+       struct drm_i915_private *dev_priv;
+       bool ret = true;
+
+       spin_lock(&mchdev_lock);
+       if (!i915_mch_dev) {
+               ret = false;
+               goto out_unlock;
+       }
+       dev_priv = i915_mch_dev;
+
+       dev_priv->max_delay = dev_priv->fstart;
+
+       if (!ironlake_set_drps(dev_priv->dev, dev_priv->fstart))
+               ret = false;
+
+out_unlock:
+       spin_unlock(&mchdev_lock);
+
+       return ret;
+}
+EXPORT_SYMBOL_GPL(i915_gpu_turbo_disable);
+
 /**
  * i915_driver_load - setup chip and create an initial config
  * @dev: DRM device
@@ -1056,10 +2036,10 @@ void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
  */
 int i915_driver_load(struct drm_device *dev, unsigned long flags)
 {
-       struct drm_i915_private *dev_priv = dev->dev_private;
-       unsigned long base, size;
-       int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
-
+       struct drm_i915_private *dev_priv;
+       resource_size_t base, size;
+       int ret = 0, mmio_bar;
+       uint32_t agp_size, prealloc_size, prealloc_start;
        /* i915 has 4 more counters */
        dev->counters += 4;
        dev->types[6] = _DRM_STAT_IRQ;
@@ -1067,24 +2047,29 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        dev->types[8] = _DRM_STAT_SECONDARY;
        dev->types[9] = _DRM_STAT_DMA;
 
-       dev_priv = drm_alloc(sizeof(drm_i915_private_t), DRM_MEM_DRIVER);
+       dev_priv = kzalloc(sizeof(drm_i915_private_t), GFP_KERNEL);
        if (dev_priv == NULL)
                return -ENOMEM;
 
-       memset(dev_priv, 0, sizeof(drm_i915_private_t));
-
        dev->dev_private = (void *)dev_priv;
        dev_priv->dev = dev;
+       dev_priv->info = (struct intel_device_info *) flags;
 
        /* Add register map (needed for suspend/resume) */
+       mmio_bar = IS_I9XX(dev) ? 0 : 1;
        base = drm_get_resource_start(dev, mmio_bar);
        size = drm_get_resource_len(dev, mmio_bar);
 
+       if (i915_get_bridge_dev(dev)) {
+               ret = -EIO;
+               goto free_priv;
+       }
+
        dev_priv->regs = ioremap(base, size);
        if (!dev_priv->regs) {
                DRM_ERROR("failed to map registers\n");
                ret = -EIO;
-               goto free_priv;
+               goto put_bridge;
        }
 
         dev_priv->mm.gtt_mapping =
@@ -1105,21 +2090,49 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                                         1024 * 1024,
                                         MTRR_TYPE_WRCOMB, 1);
        if (dev_priv->mm.gtt_mtrr < 0) {
-               DRM_INFO("MTRR allocation failed\n.  Graphics "
+               DRM_INFO("MTRR allocation failed.  Graphics "
                         "performance may suffer.\n");
        }
 
-#ifdef CONFIG_HIGHMEM64G
-       /* don't enable GEM on PAE - needs agp + set_memory_* interface fixes */
-       dev_priv->has_gem = 0;
-#else
+       ret = i915_probe_agp(dev, &agp_size, &prealloc_size, &prealloc_start);
+       if (ret)
+               goto out_iomapfree;
+
+       dev_priv->wq = create_singlethread_workqueue("i915");
+       if (dev_priv->wq == NULL) {
+               DRM_ERROR("Failed to create our workqueue.\n");
+               ret = -ENOMEM;
+               goto out_iomapfree;
+       }
+
        /* enable GEM by default */
        dev_priv->has_gem = 1;
-#endif
+
+       if (prealloc_size > agp_size * 3 / 4) {
+               DRM_ERROR("Detected broken video BIOS with %d/%dkB of video "
+                         "memory stolen.\n",
+                         prealloc_size / 1024, agp_size / 1024);
+               DRM_ERROR("Disabling GEM. (try reducing stolen memory or "
+                         "updating the BIOS to fix).\n");
+               dev_priv->has_gem = 0;
+       }
+
+       if (dev_priv->has_gem == 0 &&
+           drm_core_check_feature(dev, DRIVER_MODESET)) {
+               DRM_ERROR("kernel modesetting requires GEM, disabling driver.\n");
+               ret = -ENODEV;
+               goto out_iomapfree;
+       }
 
        dev->driver->get_vblank_counter = i915_get_vblank_counter;
-       if (IS_GM45(dev))
+       dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
+       if (IS_G4X(dev) || IS_IRONLAKE(dev) || IS_GEN6(dev)) {
+               dev->max_vblank_count = 0xffffffff; /* full 32 bit counter */
                dev->driver->get_vblank_counter = gm45_get_vblank_counter;
+       }
+
+       /* Try to make sure MCHBAR is enabled before poking at it */
+       intel_setup_mchbar(dev);
 
        i915_gem_load(dev);
 
@@ -1127,9 +2140,14 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        if (!I915_NEED_GFX_HWS(dev)) {
                ret = i915_init_phys_hws(dev);
                if (ret != 0)
-                       goto out_iomapfree;
+                       goto out_workqueue_free;
        }
 
+       if (IS_PINEVIEW(dev))
+               i915_pineview_get_mem_freq(dev);
+       else if (IS_IRONLAKE(dev))
+               i915_ironlake_get_mem_freq(dev);
+
        /* 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
@@ -1144,10 +2162,9 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        if (!IS_I945G(dev) && !IS_I945GM(dev))
                pci_enable_msi(dev->pdev);
 
-       intel_opregion_init(dev);
-
        spin_lock_init(&dev_priv->user_irq_lock);
-       dev_priv->user_irq_refcount = 0;
+       spin_lock_init(&dev_priv->error_lock);
+       dev_priv->trace_irq_seqno = 0;
 
        ret = drm_vblank_init(dev, I915_NUM_PIPE);
 
@@ -1156,22 +2173,43 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                return ret;
        }
 
+       /* Start out suspended */
+       dev_priv->mm.suspended = 1;
+
+       intel_detect_pch(dev);
+
        if (drm_core_check_feature(dev, DRIVER_MODESET)) {
-               ret = i915_load_modeset_init(dev);
+               ret = i915_load_modeset_init(dev, prealloc_start,
+                                            prealloc_size, agp_size);
                if (ret < 0) {
                        DRM_ERROR("failed to init modeset\n");
-                       goto out_rmmap;
+                       goto out_workqueue_free;
                }
        }
 
+       /* Must be done after probing outputs */
+       intel_opregion_init(dev, 0);
+
+       setup_timer(&dev_priv->hangcheck_timer, i915_hangcheck_elapsed,
+                   (unsigned long) dev);
+
+       spin_lock(&mchdev_lock);
+       i915_mch_dev = dev_priv;
+       dev_priv->mchdev_lock = &mchdev_lock;
+       spin_unlock(&mchdev_lock);
+
        return 0;
 
+out_workqueue_free:
+       destroy_workqueue(dev_priv->wq);
 out_iomapfree:
        io_mapping_free(dev_priv->mm.gtt_mapping);
 out_rmmap:
        iounmap(dev_priv->regs);
+put_bridge:
+       pci_dev_put(dev_priv->bridge_dev);
 free_priv:
-       drm_free(dev_priv, sizeof(struct drm_i915_private), DRM_MEM_DRIVER);
+       kfree(dev_priv);
        return ret;
 }
 
@@ -1179,6 +2217,15 @@ int i915_driver_unload(struct drm_device *dev)
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
 
+       i915_destroy_error_state(dev);
+
+       spin_lock(&mchdev_lock);
+       i915_mch_dev = NULL;
+       spin_unlock(&mchdev_lock);
+
+       destroy_workqueue(dev_priv->wq);
+       del_timer_sync(&dev_priv->hangcheck_timer);
+
        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,
@@ -1187,7 +2234,20 @@ int i915_driver_unload(struct drm_device *dev)
        }
 
        if (drm_core_check_feature(dev, DRIVER_MODESET)) {
+               intel_modeset_cleanup(dev);
+
+               /*
+                * free the memory space allocated for the child device
+                * config parsed from VBT
+                */
+               if (dev_priv->child_dev && dev_priv->child_dev_num) {
+                       kfree(dev_priv->child_dev);
+                       dev_priv->child_dev = NULL;
+                       dev_priv->child_dev_num = 0;
+               }
                drm_irq_uninstall(dev);
+               vga_switcheroo_unregister_client(dev->pdev);
+               vga_client_register(dev->pdev, NULL, NULL, NULL);
        }
 
        if (dev->pdev->msi_enabled)
@@ -1196,22 +2256,26 @@ int i915_driver_unload(struct drm_device *dev)
        if (dev_priv->regs != NULL)
                iounmap(dev_priv->regs);
 
-       intel_opregion_free(dev);
+       intel_opregion_free(dev, 0);
 
        if (drm_core_check_feature(dev, DRIVER_MODESET)) {
-               intel_modeset_cleanup(dev);
-
                i915_gem_free_all_phys_object(dev);
 
                mutex_lock(&dev->struct_mutex);
                i915_gem_cleanup_ringbuffer(dev);
                mutex_unlock(&dev->struct_mutex);
+               if (I915_HAS_FBC(dev) && i915_powersave)
+                       i915_cleanup_compression(dev);
                drm_mm_takedown(&dev_priv->vram);
                i915_gem_lastclose(dev);
+
+               intel_cleanup_overlay(dev);
        }
 
-       drm_free(dev->dev_private, sizeof(drm_i915_private_t),
-                DRM_MEM_DRIVER);
+       intel_teardown_mchbar(dev);
+
+       pci_dev_put(dev_priv->bridge_dev);
+       kfree(dev->dev_private);
 
        return 0;
 }
@@ -1220,17 +2284,16 @@ int i915_driver_open(struct drm_device *dev, struct drm_file *file_priv)
 {
        struct drm_i915_file_private *i915_file_priv;
 
-       DRM_DEBUG("\n");
+       DRM_DEBUG_DRIVER("\n");
        i915_file_priv = (struct drm_i915_file_private *)
-           drm_alloc(sizeof(*i915_file_priv), DRM_MEM_FILES);
+           kmalloc(sizeof(*i915_file_priv), GFP_KERNEL);
 
        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;
+       INIT_LIST_HEAD(&i915_file_priv->mm.request_list);
 
        return 0;
 }
@@ -1252,7 +2315,8 @@ void i915_driver_lastclose(struct drm_device * dev)
        drm_i915_private_t *dev_priv = dev->dev_private;
 
        if (!dev_priv || drm_core_check_feature(dev, DRIVER_MODESET)) {
-               intelfb_restore();
+               drm_fb_helper_restore();
+               vga_switcheroo_process_delayed_switch();
                return;
        }
 
@@ -1267,6 +2331,7 @@ void i915_driver_lastclose(struct drm_device * dev)
 void i915_driver_preclose(struct drm_device * dev, struct drm_file *file_priv)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
+       i915_gem_release(dev, file_priv);
        if (!drm_core_check_feature(dev, DRIVER_MODESET))
                i915_mem_release(dev, file_priv, dev_priv->agp_heap);
 }
@@ -1275,7 +2340,7 @@ 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);
+       kfree(i915_file_priv);
 }
 
 struct drm_ioctl_desc i915_ioctls[] = {
@@ -1296,24 +2361,29 @@ struct drm_ioctl_desc i915_ioctls[] = {
        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),
        DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-       DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
-       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),
-       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),
-       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),
-       DRM_IOCTL_DEF(DRM_I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, 0),
-       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),
-       DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, 0),
+       DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER2, i915_gem_execbuffer2, DRM_AUTH|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_MMAP, i915_gem_mmap_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_MMAP_GTT, i915_gem_mmap_gtt_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_SET_DOMAIN, i915_gem_set_domain_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GET_PIPE_FROM_CRTC_ID, intel_get_pipe_from_crtc_id, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+       DRM_IOCTL_DEF(DRM_I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 };
 
 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);