#define TTM_MEMTYPE_FLAG_FIXED (1 << 0) /* Fixed (on-card) PCI memory */
#define TTM_MEMTYPE_FLAG_MAPPABLE (1 << 1) /* Memory mappable */
-#define TTM_MEMTYPE_FLAG_NEEDS_IOREMAP (1 << 2) /* Fixed memory needs ioremap
- before kernel access. */
#define TTM_MEMTYPE_FLAG_CMA (1 << 3) /* Can't map aperture */
/**
* managed by this memory type.
* @gpu_offset: If used, the GPU offset of the first managed page of
* fixed memory or the first managed location in an aperture.
- * @io_offset: The io_offset of the first managed page of IO memory or
- * the first managed location in an aperture. For TTM_MEMTYPE_FLAG_CMA
- * memory, this should be set to NULL.
- * @io_size: The size of a managed IO region (fixed memory or aperture).
- * @io_addr: Virtual kernel address if the io region is pre-mapped. For
- * TTM_MEMTYPE_FLAG_NEEDS_IOREMAP there is no pre-mapped io map and
- * @io_addr should be set to NULL.
* @size: Size of the managed region.
* @available_caching: A mask of available caching types, TTM_PL_FLAG_XX,
* as defined in ttm_placement_common.h
bool use_type;
uint32_t flags;
unsigned long gpu_offset;
- unsigned long io_offset;
- unsigned long io_size;
- void *io_addr;
uint64_t size;
uint32_t available_caching;
uint32_t default_caching;
*/
int (*move) (struct ttm_buffer_object *bo,
bool evict, bool interruptible,
- bool no_wait, struct ttm_mem_reg *new_mem);
+ bool no_wait_reserve, bool no_wait_gpu,
+ struct ttm_mem_reg *new_mem);
/**
* struct ttm_bo_driver_member verify_access
struct ttm_mem_reg *new_mem);
/* notify the driver we are taking a fault on this BO
* and have reserved it */
- void (*fault_reserve_notify)(struct ttm_buffer_object *bo);
+ int (*fault_reserve_notify)(struct ttm_buffer_object *bo);
/**
* notify the driver that we're about to swap out this bo
*/
void (*swap_notify) (struct ttm_buffer_object *bo);
+
+ /**
+ * Driver callback on when mapping io memory (for bo_move_memcpy
+ * for instance). TTM will take care to call io_mem_free whenever
+ * the mapping is not use anymore. io_mem_reserve & io_mem_free
+ * are balanced.
+ */
+ int (*io_mem_reserve)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
+ void (*io_mem_free)(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem);
};
/**
* @proposed_placement: Proposed new placement for the buffer object.
* @mem: A struct ttm_mem_reg.
* @interruptible: Sleep interruptible when sliping.
- * @no_wait: Don't sleep waiting for space to become available.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
*
* Allocate memory space for the buffer object pointed to by @bo, using
* the placement flags in @mem, potentially evicting other idle buffer objects.
extern int ttm_bo_mem_space(struct ttm_buffer_object *bo,
struct ttm_placement *placement,
struct ttm_mem_reg *mem,
- bool interruptible, bool no_wait);
+ bool interruptible,
+ bool no_wait_reserve, bool no_wait_gpu);
/**
* ttm_bo_wait_for_cpu
*
unsigned long *bus_offset,
unsigned long *bus_size);
+extern int ttm_mem_io_reserve(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem);
+extern void ttm_mem_io_free(struct ttm_bo_device *bdev,
+ struct ttm_mem_reg *mem);
+
extern void ttm_bo_global_release(struct ttm_global_reference *ref);
extern int ttm_bo_global_init(struct ttm_global_reference *ref);
*
* @bo: A pointer to a struct ttm_buffer_object.
* @evict: 1: This is an eviction. Don't try to pipeline.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
*
* Optimized move function for a buffer object with both old and
*/
extern int ttm_bo_move_ttm(struct ttm_buffer_object *bo,
- bool evict, bool no_wait,
- struct ttm_mem_reg *new_mem);
+ bool evict, bool no_wait_reserve,
+ bool no_wait_gpu, struct ttm_mem_reg *new_mem);
/**
* ttm_bo_move_memcpy
*
* @bo: A pointer to a struct ttm_buffer_object.
* @evict: 1: This is an eviction. Don't try to pipeline.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
*
* Fallback move function for a mappable buffer object in mappable memory.
*/
extern int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
- bool evict,
- bool no_wait, struct ttm_mem_reg *new_mem);
+ bool evict, bool no_wait_reserve,
+ bool no_wait_gpu, struct ttm_mem_reg *new_mem);
/**
* ttm_bo_free_old_node
* @sync_obj_arg: An argument to pass to the sync object idle / wait
* functions.
* @evict: This is an evict move. Don't return until the buffer is idle.
- * @no_wait: Never sleep, but rather return with -EBUSY.
+ * @no_wait_reserve: Return immediately if other buffers are busy.
+ * @no_wait_gpu: Return immediately if the GPU is busy.
* @new_mem: struct ttm_mem_reg indicating where to move.
*
* Accelerated move function to be called when an accelerated move
extern int ttm_bo_move_accel_cleanup(struct ttm_buffer_object *bo,
void *sync_obj,
void *sync_obj_arg,
- bool evict, bool no_wait,
+ bool evict, bool no_wait_reserve,
+ bool no_wait_gpu,
struct ttm_mem_reg *new_mem);
/**
* ttm_io_prot
git.openpandora.org / pandora-kernel.git / blobdiff