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path: root/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c182
1 files changed, 171 insertions, 11 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 0489c6152482..6327cfc36805 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -40,6 +40,10 @@ static uint32_t vram_ne_placement_flags = TTM_PL_FLAG_VRAM |
static uint32_t sys_placement_flags = TTM_PL_FLAG_SYSTEM |
TTM_PL_FLAG_CACHED;
+static uint32_t sys_ne_placement_flags = TTM_PL_FLAG_SYSTEM |
+ TTM_PL_FLAG_CACHED |
+ TTM_PL_FLAG_NO_EVICT;
+
static uint32_t gmr_placement_flags = VMW_PL_FLAG_GMR |
TTM_PL_FLAG_CACHED;
@@ -47,6 +51,9 @@ static uint32_t gmr_ne_placement_flags = VMW_PL_FLAG_GMR |
TTM_PL_FLAG_CACHED |
TTM_PL_FLAG_NO_EVICT;
+static uint32_t mob_placement_flags = VMW_PL_FLAG_MOB |
+ TTM_PL_FLAG_CACHED;
+
struct ttm_placement vmw_vram_placement = {
.fpfn = 0,
.lpfn = 0,
@@ -116,16 +123,26 @@ struct ttm_placement vmw_sys_placement = {
.busy_placement = &sys_placement_flags
};
+struct ttm_placement vmw_sys_ne_placement = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .num_placement = 1,
+ .placement = &sys_ne_placement_flags,
+ .num_busy_placement = 1,
+ .busy_placement = &sys_ne_placement_flags
+};
+
static uint32_t evictable_placement_flags[] = {
TTM_PL_FLAG_SYSTEM | TTM_PL_FLAG_CACHED,
TTM_PL_FLAG_VRAM | TTM_PL_FLAG_CACHED,
- VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED
+ VMW_PL_FLAG_GMR | TTM_PL_FLAG_CACHED,
+ VMW_PL_FLAG_MOB | TTM_PL_FLAG_CACHED
};
struct ttm_placement vmw_evictable_placement = {
.fpfn = 0,
.lpfn = 0,
- .num_placement = 3,
+ .num_placement = 4,
.placement = evictable_placement_flags,
.num_busy_placement = 1,
.busy_placement = &sys_placement_flags
@@ -140,10 +157,21 @@ struct ttm_placement vmw_srf_placement = {
.busy_placement = gmr_vram_placement_flags
};
+struct ttm_placement vmw_mob_placement = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .num_placement = 1,
+ .num_busy_placement = 1,
+ .placement = &mob_placement_flags,
+ .busy_placement = &mob_placement_flags
+};
+
struct vmw_ttm_tt {
struct ttm_dma_tt dma_ttm;
struct vmw_private *dev_priv;
int gmr_id;
+ struct vmw_mob *mob;
+ int mem_type;
struct sg_table sgt;
struct vmw_sg_table vsgt;
uint64_t sg_alloc_size;
@@ -244,6 +272,7 @@ void vmw_piter_start(struct vmw_piter *viter, const struct vmw_sg_table *vsgt,
viter->dma_address = &__vmw_piter_dma_addr;
viter->page = &__vmw_piter_non_sg_page;
viter->addrs = vsgt->addrs;
+ viter->pages = vsgt->pages;
break;
case vmw_dma_map_populate:
case vmw_dma_map_bind:
@@ -424,6 +453,63 @@ static void vmw_ttm_unmap_dma(struct vmw_ttm_tt *vmw_tt)
vmw_tt->mapped = false;
}
+
+/**
+ * vmw_bo_map_dma - Make sure buffer object pages are visible to the device
+ *
+ * @bo: Pointer to a struct ttm_buffer_object
+ *
+ * Wrapper around vmw_ttm_map_dma, that takes a TTM buffer object pointer
+ * instead of a pointer to a struct vmw_ttm_backend as argument.
+ * Note that the buffer object must be either pinned or reserved before
+ * calling this function.
+ */
+int vmw_bo_map_dma(struct ttm_buffer_object *bo)
+{
+ struct vmw_ttm_tt *vmw_tt =
+ container_of(bo->ttm, struct vmw_ttm_tt, dma_ttm.ttm);
+
+ return vmw_ttm_map_dma(vmw_tt);
+}
+
+
+/**
+ * vmw_bo_unmap_dma - Make sure buffer object pages are visible to the device
+ *
+ * @bo: Pointer to a struct ttm_buffer_object
+ *
+ * Wrapper around vmw_ttm_unmap_dma, that takes a TTM buffer object pointer
+ * instead of a pointer to a struct vmw_ttm_backend as argument.
+ */
+void vmw_bo_unmap_dma(struct ttm_buffer_object *bo)
+{
+ struct vmw_ttm_tt *vmw_tt =
+ container_of(bo->ttm, struct vmw_ttm_tt, dma_ttm.ttm);
+
+ vmw_ttm_unmap_dma(vmw_tt);
+}
+
+
+/**
+ * vmw_bo_sg_table - Return a struct vmw_sg_table object for a
+ * TTM buffer object
+ *
+ * @bo: Pointer to a struct ttm_buffer_object
+ *
+ * Returns a pointer to a struct vmw_sg_table object. The object should
+ * not be freed after use.
+ * Note that for the device addresses to be valid, the buffer object must
+ * either be reserved or pinned.
+ */
+const struct vmw_sg_table *vmw_bo_sg_table(struct ttm_buffer_object *bo)
+{
+ struct vmw_ttm_tt *vmw_tt =
+ container_of(bo->ttm, struct vmw_ttm_tt, dma_ttm.ttm);
+
+ return &vmw_tt->vsgt;
+}
+
+
static int vmw_ttm_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
{
struct vmw_ttm_tt *vmw_be =
@@ -435,9 +521,27 @@ static int vmw_ttm_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
return ret;
vmw_be->gmr_id = bo_mem->start;
+ vmw_be->mem_type = bo_mem->mem_type;
+
+ switch (bo_mem->mem_type) {
+ case VMW_PL_GMR:
+ return vmw_gmr_bind(vmw_be->dev_priv, &vmw_be->vsgt,
+ ttm->num_pages, vmw_be->gmr_id);
+ case VMW_PL_MOB:
+ if (unlikely(vmw_be->mob == NULL)) {
+ vmw_be->mob =
+ vmw_mob_create(ttm->num_pages);
+ if (unlikely(vmw_be->mob == NULL))
+ return -ENOMEM;
+ }
- return vmw_gmr_bind(vmw_be->dev_priv, &vmw_be->vsgt,
- ttm->num_pages, vmw_be->gmr_id);
+ return vmw_mob_bind(vmw_be->dev_priv, vmw_be->mob,
+ &vmw_be->vsgt, ttm->num_pages,
+ vmw_be->gmr_id);
+ default:
+ BUG();
+ }
+ return 0;
}
static int vmw_ttm_unbind(struct ttm_tt *ttm)
@@ -445,7 +549,16 @@ static int vmw_ttm_unbind(struct ttm_tt *ttm)
struct vmw_ttm_tt *vmw_be =
container_of(ttm, struct vmw_ttm_tt, dma_ttm.ttm);
- vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id);
+ switch (vmw_be->mem_type) {
+ case VMW_PL_GMR:
+ vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id);
+ break;
+ case VMW_PL_MOB:
+ vmw_mob_unbind(vmw_be->dev_priv, vmw_be->mob);
+ break;
+ default:
+ BUG();
+ }
if (vmw_be->dev_priv->map_mode == vmw_dma_map_bind)
vmw_ttm_unmap_dma(vmw_be);
@@ -453,6 +566,7 @@ static int vmw_ttm_unbind(struct ttm_tt *ttm)
return 0;
}
+
static void vmw_ttm_destroy(struct ttm_tt *ttm)
{
struct vmw_ttm_tt *vmw_be =
@@ -463,9 +577,14 @@ static void vmw_ttm_destroy(struct ttm_tt *ttm)
ttm_dma_tt_fini(&vmw_be->dma_ttm);
else
ttm_tt_fini(ttm);
+
+ if (vmw_be->mob)
+ vmw_mob_destroy(vmw_be->mob);
+
kfree(vmw_be);
}
+
static int vmw_ttm_populate(struct ttm_tt *ttm)
{
struct vmw_ttm_tt *vmw_tt =
@@ -500,6 +619,12 @@ static void vmw_ttm_unpopulate(struct ttm_tt *ttm)
struct vmw_private *dev_priv = vmw_tt->dev_priv;
struct ttm_mem_global *glob = vmw_mem_glob(dev_priv);
+
+ if (vmw_tt->mob) {
+ vmw_mob_destroy(vmw_tt->mob);
+ vmw_tt->mob = NULL;
+ }
+
vmw_ttm_unmap_dma(vmw_tt);
if (dev_priv->map_mode == vmw_dma_alloc_coherent) {
size_t size =
@@ -517,7 +642,7 @@ static struct ttm_backend_func vmw_ttm_func = {
.destroy = vmw_ttm_destroy,
};
-struct ttm_tt *vmw_ttm_tt_create(struct ttm_bo_device *bdev,
+static struct ttm_tt *vmw_ttm_tt_create(struct ttm_bo_device *bdev,
unsigned long size, uint32_t page_flags,
struct page *dummy_read_page)
{
@@ -530,6 +655,7 @@ struct ttm_tt *vmw_ttm_tt_create(struct ttm_bo_device *bdev,
vmw_be->dma_ttm.ttm.func = &vmw_ttm_func;
vmw_be->dev_priv = container_of(bdev, struct vmw_private, bdev);
+ vmw_be->mob = NULL;
if (vmw_be->dev_priv->map_mode == vmw_dma_alloc_coherent)
ret = ttm_dma_tt_init(&vmw_be->dma_ttm, bdev, size, page_flags,
@@ -546,12 +672,12 @@ out_no_init:
return NULL;
}
-int vmw_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
+static int vmw_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
{
return 0;
}
-int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
+static int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
struct ttm_mem_type_manager *man)
{
switch (type) {
@@ -571,6 +697,7 @@ int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
man->default_caching = TTM_PL_FLAG_CACHED;
break;
case VMW_PL_GMR:
+ case VMW_PL_MOB:
/*
* "Guest Memory Regions" is an aperture like feature with
* one slot per bo. There is an upper limit of the number of
@@ -589,7 +716,7 @@ int vmw_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
return 0;
}
-void vmw_evict_flags(struct ttm_buffer_object *bo,
+static void vmw_evict_flags(struct ttm_buffer_object *bo,
struct ttm_placement *placement)
{
*placement = vmw_sys_placement;
@@ -618,6 +745,7 @@ static int vmw_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg
switch (mem->mem_type) {
case TTM_PL_SYSTEM:
case VMW_PL_GMR:
+ case VMW_PL_MOB:
return 0;
case TTM_PL_VRAM:
mem->bus.offset = mem->start << PAGE_SHIFT;
@@ -677,6 +805,38 @@ static int vmw_sync_obj_wait(void *sync_obj, bool lazy, bool interruptible)
VMW_FENCE_WAIT_TIMEOUT);
}
+/**
+ * vmw_move_notify - TTM move_notify_callback
+ *
+ * @bo: The TTM buffer object about to move.
+ * @mem: The truct ttm_mem_reg indicating to what memory
+ * region the move is taking place.
+ *
+ * Calls move_notify for all subsystems needing it.
+ * (currently only resources).
+ */
+static void vmw_move_notify(struct ttm_buffer_object *bo,
+ struct ttm_mem_reg *mem)
+{
+ vmw_resource_move_notify(bo, mem);
+}
+
+
+/**
+ * vmw_swap_notify - TTM move_notify_callback
+ *
+ * @bo: The TTM buffer object about to be swapped out.
+ */
+static void vmw_swap_notify(struct ttm_buffer_object *bo)
+{
+ struct ttm_bo_device *bdev = bo->bdev;
+
+ spin_lock(&bdev->fence_lock);
+ ttm_bo_wait(bo, false, false, false);
+ spin_unlock(&bdev->fence_lock);
+}
+
+
struct ttm_bo_driver vmw_bo_driver = {
.ttm_tt_create = &vmw_ttm_tt_create,
.ttm_tt_populate = &vmw_ttm_populate,
@@ -691,8 +851,8 @@ struct ttm_bo_driver vmw_bo_driver = {
.sync_obj_flush = vmw_sync_obj_flush,
.sync_obj_unref = vmw_sync_obj_unref,
.sync_obj_ref = vmw_sync_obj_ref,
- .move_notify = NULL,
- .swap_notify = NULL,
+ .move_notify = vmw_move_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,