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authorJerome Glisse <jglisse@redhat.com>2010-04-09 14:39:26 +0200
committerDave Airlie <airlied@redhat.com>2010-04-20 14:12:43 +1000
commit96bf8b8778976a6e6a4fe4e6e0421d8ed7892798 (patch)
treea56bc90ca55dbf623bcdcbefa6550cb426d0934e /drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
parentf32f02fd81f3177cce0c16cc7d210fcc9cad953c (diff)
drm/vmwgfx: add support for new TTM fault callback V5
This add the support for the new fault callback, does change anything from driver point of view. Improvement: store the aperture base in a variable so that we don't call a function to get it on each fault. Patch hasn't been tested. V2 don't derefence bo->mem.mm_node as it's not NULL only for VRAM or GTT V3 update after io_mem_reserve/io_mem_free callback balancing V4 callback has to ioremap V5 ioremap is done by TTM Signed-off-by: Jerome Glisse <jglisse@redhat.com> Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c44
1 files changed, 41 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 825ebe3d89d5..f3558968fdff 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -153,8 +153,7 @@ int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
man->gpu_offset = 0;
man->io_offset = dev_priv->vram_start;
man->io_size = dev_priv->vram_size;
- man->flags = TTM_MEMTYPE_FLAG_FIXED |
- TTM_MEMTYPE_FLAG_NEEDS_IOREMAP | TTM_MEMTYPE_FLAG_MAPPABLE;
+ man->flags = TTM_MEMTYPE_FLAG_FIXED | TTM_MEMTYPE_FLAG_MAPPABLE;
man->io_addr = NULL;
man->available_caching = TTM_PL_MASK_CACHING;
man->default_caching = TTM_PL_FLAG_WC;
@@ -193,6 +192,42 @@ static void vmw_swap_notify(struct ttm_buffer_object *bo)
vmw_dmabuf_gmr_unbind(bo);
}
+static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+ struct ttm_mem_type_manager *man = &bdev->man[mem->mem_type];
+ struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev);
+
+ mem->bus.addr = NULL;
+ mem->bus.is_iomem = false;
+ mem->bus.offset = 0;
+ mem->bus.size = mem->num_pages << PAGE_SHIFT;
+ mem->bus.base = 0;
+ if (!(man->flags & TTM_MEMTYPE_FLAG_MAPPABLE))
+ return -EINVAL;
+ switch (mem->mem_type) {
+ case TTM_PL_SYSTEM:
+ /* System memory */
+ return 0;
+ case TTM_PL_VRAM:
+ mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+ mem->bus.base = dev_priv->vram_start;
+ mem->bus.is_iomem = true;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static void vmw_ttm_io_mem_free(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
+{
+}
+
+static int vmw_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
+{
+ return 0;
+}
+
/**
* FIXME: We're using the old vmware polling method to sync.
* Do this with fences instead.
@@ -248,5 +283,8 @@ struct ttm_bo_driver vmw_bo_driver = {
.sync_obj_unref = vmw_sync_obj_unref,
.sync_obj_ref = vmw_sync_obj_ref,
.move_notify = vmw_move_notify,
- .swap_notify = vmw_swap_notify
+ .swap_notify = vmw_swap_notify,
+ .fault_reserve_notify = &vmw_ttm_fault_reserve_notify,
+ .io_mem_reserve = &vmw_ttm_io_mem_reserve,
+ .io_mem_free = &vmw_ttm_io_mem_free,
};