Merge branch 'tty-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh...

[pandora-kernel.git] / drivers / gpu / drm / i915 / i915_gem.c

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 0b2e167..85f7137 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -31,6 +31,7 @@
 #include "i915_drv.h"
 #include "i915_trace.h"
 #include "intel_drv.h"
+#include <linux/shmem_fs.h>
 #include <linux/slab.h>
 #include <linux/swap.h>
 #include <linux/pci.h>
@@ -354,13 +355,12 @@ i915_gem_shmem_pread_fast(struct drm_device *dev,
                 * page_offset = offset within page
                 * page_length = bytes to copy for this page
                 */
-               page_offset = offset & (PAGE_SIZE-1);
+               page_offset = offset_in_page(offset);
                page_length = remain;
                if ((page_offset + remain) > PAGE_SIZE)
                        page_length = PAGE_SIZE - page_offset;
 
-               page = read_cache_page_gfp(mapping, offset >> PAGE_SHIFT,
-                                          GFP_HIGHUSER | __GFP_RECLAIMABLE);
+               page = shmem_read_mapping_page(mapping, offset >> PAGE_SHIFT);
                if (IS_ERR(page))
                        return PTR_ERR(page);
 
@@ -453,9 +453,9 @@ i915_gem_shmem_pread_slow(struct drm_device *dev,
                 * data_page_offset = offset with data_page_index page.
                 * page_length = bytes to copy for this page
                 */
-               shmem_page_offset = offset & ~PAGE_MASK;
+               shmem_page_offset = offset_in_page(offset);
                data_page_index = data_ptr / PAGE_SIZE - first_data_page;
-               data_page_offset = data_ptr & ~PAGE_MASK;
+               data_page_offset = offset_in_page(data_ptr);
 
                page_length = remain;
                if ((shmem_page_offset + page_length) > PAGE_SIZE)
@@ -463,10 +463,11 @@ i915_gem_shmem_pread_slow(struct drm_device *dev,
                if ((data_page_offset + page_length) > PAGE_SIZE)
                        page_length = PAGE_SIZE - data_page_offset;
 
-               page = read_cache_page_gfp(mapping, offset >> PAGE_SHIFT,
-                                          GFP_HIGHUSER | __GFP_RECLAIMABLE);
-               if (IS_ERR(page))
-                       return PTR_ERR(page);
+               page = shmem_read_mapping_page(mapping, offset >> PAGE_SHIFT);
+               if (IS_ERR(page)) {
+                       ret = PTR_ERR(page);
+                       goto out;
+               }
 
                if (do_bit17_swizzling) {
                        slow_shmem_bit17_copy(page,
@@ -638,8 +639,8 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev,
                 * page_offset = offset within page
                 * page_length = bytes to copy for this page
                 */
-               page_base = (offset & ~(PAGE_SIZE-1));
-               page_offset = offset & (PAGE_SIZE-1);
+               page_base = offset & PAGE_MASK;
+               page_offset = offset_in_page(offset);
                page_length = remain;
                if ((page_offset + remain) > PAGE_SIZE)
                        page_length = PAGE_SIZE - page_offset;
@@ -650,7 +651,6 @@ i915_gem_gtt_pwrite_fast(struct drm_device *dev,
                 */
                if (fast_user_write(dev_priv->mm.gtt_mapping, page_base,
                                    page_offset, user_data, page_length))
-
                        return -EFAULT;
 
                remain -= page_length;
@@ -730,9 +730,9 @@ i915_gem_gtt_pwrite_slow(struct drm_device *dev,
                 * page_length = bytes to copy for this page
                 */
                gtt_page_base = offset & PAGE_MASK;
-               gtt_page_offset = offset & ~PAGE_MASK;
+               gtt_page_offset = offset_in_page(offset);
                data_page_index = data_ptr / PAGE_SIZE - first_data_page;
-               data_page_offset = data_ptr & ~PAGE_MASK;
+               data_page_offset = offset_in_page(data_ptr);
 
                page_length = remain;
                if ((gtt_page_offset + page_length) > PAGE_SIZE)
@@ -791,13 +791,12 @@ i915_gem_shmem_pwrite_fast(struct drm_device *dev,
                 * page_offset = offset within page
                 * page_length = bytes to copy for this page
                 */
-               page_offset = offset & (PAGE_SIZE-1);
+               page_offset = offset_in_page(offset);
                page_length = remain;
                if ((page_offset + remain) > PAGE_SIZE)
                        page_length = PAGE_SIZE - page_offset;
 
-               page = read_cache_page_gfp(mapping, offset >> PAGE_SHIFT,
-                                          GFP_HIGHUSER | __GFP_RECLAIMABLE);
+               page = shmem_read_mapping_page(mapping, offset >> PAGE_SHIFT);
                if (IS_ERR(page))
                        return PTR_ERR(page);
 
@@ -896,9 +895,9 @@ i915_gem_shmem_pwrite_slow(struct drm_device *dev,
                 * data_page_offset = offset with data_page_index page.
                 * page_length = bytes to copy for this page
                 */
-               shmem_page_offset = offset & ~PAGE_MASK;
+               shmem_page_offset = offset_in_page(offset);
                data_page_index = data_ptr / PAGE_SIZE - first_data_page;
-               data_page_offset = data_ptr & ~PAGE_MASK;
+               data_page_offset = offset_in_page(data_ptr);
 
                page_length = remain;
                if ((shmem_page_offset + page_length) > PAGE_SIZE)
@@ -906,8 +905,7 @@ i915_gem_shmem_pwrite_slow(struct drm_device *dev,
                if ((data_page_offset + page_length) > PAGE_SIZE)
                        page_length = PAGE_SIZE - data_page_offset;
 
-               page = read_cache_page_gfp(mapping, offset >> PAGE_SHIFT,
-                                          GFP_HIGHUSER | __GFP_RECLAIMABLE);
+               page = shmem_read_mapping_page(mapping, offset >> PAGE_SHIFT);
                if (IS_ERR(page)) {
                        ret = PTR_ERR(page);
                        goto out;
@@ -1218,11 +1216,11 @@ int i915_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
                ret = i915_gem_object_bind_to_gtt(obj, 0, true);
                if (ret)
                        goto unlock;
-       }
 
-       ret = i915_gem_object_set_to_gtt_domain(obj, write);
-       if (ret)
-               goto unlock;
+               ret = i915_gem_object_set_to_gtt_domain(obj, write);
+               if (ret)
+                       goto unlock;
+       }
 
        if (obj->tiling_mode == I915_TILING_NONE)
                ret = i915_gem_object_put_fence(obj);
@@ -1450,8 +1448,9 @@ i915_gem_get_unfenced_gtt_alignment(struct drm_i915_gem_object *obj)
         * edge of an even tile row (where tile rows are counted as if the bo is
         * placed in a fenced gtt region).
         */
-       if (IS_GEN2(dev) ||
-           (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev)))
+       if (IS_GEN2(dev))
+               tile_height = 16;
+       else if (obj->tiling_mode == I915_TILING_Y && HAS_128_BYTE_Y_TILING(dev))
                tile_height = 32;
        else
                tile_height = 8;
@@ -1556,12 +1555,10 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj,
 
        inode = obj->base.filp->f_path.dentry->d_inode;
        mapping = inode->i_mapping;
+       gfpmask |= mapping_gfp_mask(mapping);
+
        for (i = 0; i < page_count; i++) {
-               page = read_cache_page_gfp(mapping, i,
-                                          GFP_HIGHUSER |
-                                          __GFP_COLD |
-                                          __GFP_RECLAIMABLE |
-                                          gfpmask);
+               page = shmem_read_mapping_page_gfp(mapping, i, gfpmask);
                if (IS_ERR(page))
                        goto err_pages;
 
@@ -1699,13 +1696,10 @@ i915_gem_object_truncate(struct drm_i915_gem_object *obj)
        /* Our goal here is to return as much of the memory as
         * is possible back to the system as we are called from OOM.
         * To do this we must instruct the shmfs to drop all of its
-        * backing pages, *now*. Here we mirror the actions taken
-        * when by shmem_delete_inode() to release the backing store.
+        * backing pages, *now*.
         */
        inode = obj->base.filp->f_path.dentry->d_inode;
-       truncate_inode_pages(inode->i_mapping, 0);
-       if (inode->i_op->truncate_range)
-               inode->i_op->truncate_range(inode, 0, (loff_t)-1);
+       shmem_truncate_range(inode, 0, (loff_t)-1);
 
        obj->madv = __I915_MADV_PURGED;
 }
@@ -2924,8 +2918,6 @@ i915_gem_object_flush_gtt_write_domain(struct drm_i915_gem_object *obj)
         */
        wmb();
 
-       i915_gem_release_mmap(obj);
-
        old_write_domain = obj->base.write_domain;
        obj->base.write_domain = 0;
 
@@ -3565,6 +3557,7 @@ struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
 {
        struct drm_i915_private *dev_priv = dev->dev_private;
        struct drm_i915_gem_object *obj;
+       struct address_space *mapping;
 
        obj = kzalloc(sizeof(*obj), GFP_KERNEL);
        if (obj == NULL)
@@ -3575,6 +3568,9 @@ struct drm_i915_gem_object *i915_gem_alloc_object(struct drm_device *dev,
                return NULL;
        }
 
+       mapping = obj->base.filp->f_path.dentry->d_inode->i_mapping;
+       mapping_set_gfp_mask(mapping, GFP_HIGHUSER | __GFP_RECLAIMABLE);
+
        i915_gem_info_add_obj(dev_priv, size);
 
        obj->base.write_domain = I915_GEM_DOMAIN_CPU;
@@ -3950,8 +3946,7 @@ void i915_gem_detach_phys_object(struct drm_device *dev,
 
        page_count = obj->base.size / PAGE_SIZE;
        for (i = 0; i < page_count; i++) {
-               struct page *page = read_cache_page_gfp(mapping, i,
-                                                       GFP_HIGHUSER | __GFP_RECLAIMABLE);
+               struct page *page = shmem_read_mapping_page(mapping, i);
                if (!IS_ERR(page)) {
                        char *dst = kmap_atomic(page);
                        memcpy(dst, vaddr + i*PAGE_SIZE, PAGE_SIZE);
@@ -4012,8 +4007,7 @@ i915_gem_attach_phys_object(struct drm_device *dev,
                struct page *page;
                char *dst, *src;
 
-               page = read_cache_page_gfp(mapping, i,
-                                          GFP_HIGHUSER | __GFP_RECLAIMABLE);
+               page = shmem_read_mapping_page(mapping, i);
                if (IS_ERR(page))
                        return PTR_ERR(page);