326 lines
10 KiB
C
326 lines
10 KiB
C
/*
|
|
* Copyright © 2008 Intel Corporation
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the next
|
|
* paragraph) shall be included in all copies or substantial portions of the
|
|
* Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
|
|
* IN THE SOFTWARE.
|
|
*
|
|
* Authors:
|
|
* Eric Anholt <eric@anholt.net>
|
|
*
|
|
*/
|
|
|
|
/**
|
|
* @file intel_bufmgr_priv.h
|
|
*
|
|
* Private definitions of Intel-specific bufmgr functions and structures.
|
|
*/
|
|
|
|
#ifndef INTEL_BUFMGR_PRIV_H
|
|
#define INTEL_BUFMGR_PRIV_H
|
|
|
|
/**
|
|
* Context for a buffer manager instance.
|
|
*
|
|
* Contains public methods followed by private storage for the buffer manager.
|
|
*/
|
|
struct _drm_intel_bufmgr {
|
|
/**
|
|
* Allocate a buffer object.
|
|
*
|
|
* Buffer objects are not necessarily initially mapped into CPU virtual
|
|
* address space or graphics device aperture. They must be mapped
|
|
* using bo_map() or drm_intel_gem_bo_map_gtt() to be used by the CPU.
|
|
*/
|
|
drm_intel_bo *(*bo_alloc) (drm_intel_bufmgr *bufmgr, const char *name,
|
|
unsigned long size, unsigned int alignment);
|
|
|
|
/**
|
|
* Allocate a buffer object, hinting that it will be used as a
|
|
* render target.
|
|
*
|
|
* This is otherwise the same as bo_alloc.
|
|
*/
|
|
drm_intel_bo *(*bo_alloc_for_render) (drm_intel_bufmgr *bufmgr,
|
|
const char *name,
|
|
unsigned long size,
|
|
unsigned int alignment);
|
|
|
|
/**
|
|
* Allocate a buffer object from an existing user accessible
|
|
* address malloc'd with the provided size.
|
|
* Alignment is used when mapping to the gtt.
|
|
* Flags may be I915_VMAP_READ_ONLY or I915_USERPTR_UNSYNCHRONIZED
|
|
*/
|
|
drm_intel_bo *(*bo_alloc_userptr)(drm_intel_bufmgr *bufmgr,
|
|
const char *name, void *addr,
|
|
uint32_t tiling_mode, uint32_t stride,
|
|
unsigned long size,
|
|
unsigned long flags);
|
|
|
|
/**
|
|
* Allocate a tiled buffer object.
|
|
*
|
|
* Alignment for tiled objects is set automatically; the 'flags'
|
|
* argument provides a hint about how the object will be used initially.
|
|
*
|
|
* Valid tiling formats are:
|
|
* I915_TILING_NONE
|
|
* I915_TILING_X
|
|
* I915_TILING_Y
|
|
*
|
|
* Note the tiling format may be rejected; callers should check the
|
|
* 'tiling_mode' field on return, as well as the pitch value, which
|
|
* may have been rounded up to accommodate for tiling restrictions.
|
|
*/
|
|
drm_intel_bo *(*bo_alloc_tiled) (drm_intel_bufmgr *bufmgr,
|
|
const char *name,
|
|
int x, int y, int cpp,
|
|
uint32_t *tiling_mode,
|
|
unsigned long *pitch,
|
|
unsigned long flags);
|
|
|
|
/** Takes a reference on a buffer object */
|
|
void (*bo_reference) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Releases a reference on a buffer object, freeing the data if
|
|
* no references remain.
|
|
*/
|
|
void (*bo_unreference) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Maps the buffer into userspace.
|
|
*
|
|
* This function will block waiting for any existing execution on the
|
|
* buffer to complete, first. The resulting mapping is available at
|
|
* buf->virtual.
|
|
*/
|
|
int (*bo_map) (drm_intel_bo *bo, int write_enable);
|
|
|
|
/**
|
|
* Reduces the refcount on the userspace mapping of the buffer
|
|
* object.
|
|
*/
|
|
int (*bo_unmap) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Write data into an object.
|
|
*
|
|
* This is an optional function, if missing,
|
|
* drm_intel_bo will map/memcpy/unmap.
|
|
*/
|
|
int (*bo_subdata) (drm_intel_bo *bo, unsigned long offset,
|
|
unsigned long size, const void *data);
|
|
|
|
/**
|
|
* Read data from an object
|
|
*
|
|
* This is an optional function, if missing,
|
|
* drm_intel_bo will map/memcpy/unmap.
|
|
*/
|
|
int (*bo_get_subdata) (drm_intel_bo *bo, unsigned long offset,
|
|
unsigned long size, void *data);
|
|
|
|
/**
|
|
* Waits for rendering to an object by the GPU to have completed.
|
|
*
|
|
* This is not required for any access to the BO by bo_map,
|
|
* bo_subdata, etc. It is merely a way for the driver to implement
|
|
* glFinish.
|
|
*/
|
|
void (*bo_wait_rendering) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Tears down the buffer manager instance.
|
|
*/
|
|
void (*destroy) (drm_intel_bufmgr *bufmgr);
|
|
|
|
/**
|
|
* Indicate if the buffer can be placed anywhere in the full ppgtt
|
|
* address range (2^48).
|
|
*
|
|
* Any resource used with flat/heapless (0x00000000-0xfffff000)
|
|
* General State Heap (GSH) or Intructions State Heap (ISH) must
|
|
* be in a 32-bit range. 48-bit range will only be used when explicitly
|
|
* requested.
|
|
*
|
|
* \param bo Buffer to set the use_48b_address_range flag.
|
|
* \param enable The flag value.
|
|
*/
|
|
void (*bo_use_48b_address_range) (drm_intel_bo *bo, uint32_t enable);
|
|
|
|
/**
|
|
* Add relocation entry in reloc_buf, which will be updated with the
|
|
* target buffer's real offset on on command submission.
|
|
*
|
|
* Relocations remain in place for the lifetime of the buffer object.
|
|
*
|
|
* \param bo Buffer to write the relocation into.
|
|
* \param offset Byte offset within reloc_bo of the pointer to
|
|
* target_bo.
|
|
* \param target_bo Buffer whose offset should be written into the
|
|
* relocation entry.
|
|
* \param target_offset Constant value to be added to target_bo's
|
|
* offset in relocation entry.
|
|
* \param read_domains GEM read domains which the buffer will be
|
|
* read into by the command that this relocation
|
|
* is part of.
|
|
* \param write_domains GEM read domains which the buffer will be
|
|
* dirtied in by the command that this
|
|
* relocation is part of.
|
|
*/
|
|
int (*bo_emit_reloc) (drm_intel_bo *bo, uint32_t offset,
|
|
drm_intel_bo *target_bo, uint32_t target_offset,
|
|
uint32_t read_domains, uint32_t write_domain);
|
|
int (*bo_emit_reloc_fence)(drm_intel_bo *bo, uint32_t offset,
|
|
drm_intel_bo *target_bo,
|
|
uint32_t target_offset,
|
|
uint32_t read_domains,
|
|
uint32_t write_domain);
|
|
|
|
/** Executes the command buffer pointed to by bo. */
|
|
int (*bo_exec) (drm_intel_bo *bo, int used,
|
|
drm_clip_rect_t *cliprects, int num_cliprects,
|
|
int DR4);
|
|
|
|
/** Executes the command buffer pointed to by bo on the selected
|
|
* ring buffer
|
|
*/
|
|
int (*bo_mrb_exec) (drm_intel_bo *bo, int used,
|
|
drm_clip_rect_t *cliprects, int num_cliprects,
|
|
int DR4, unsigned flags);
|
|
|
|
/**
|
|
* Pin a buffer to the aperture and fix the offset until unpinned
|
|
*
|
|
* \param buf Buffer to pin
|
|
* \param alignment Required alignment for aperture, in bytes
|
|
*/
|
|
int (*bo_pin) (drm_intel_bo *bo, uint32_t alignment);
|
|
|
|
/**
|
|
* Unpin a buffer from the aperture, allowing it to be removed
|
|
*
|
|
* \param buf Buffer to unpin
|
|
*/
|
|
int (*bo_unpin) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Ask that the buffer be placed in tiling mode
|
|
*
|
|
* \param buf Buffer to set tiling mode for
|
|
* \param tiling_mode desired, and returned tiling mode
|
|
*/
|
|
int (*bo_set_tiling) (drm_intel_bo *bo, uint32_t * tiling_mode,
|
|
uint32_t stride);
|
|
|
|
/**
|
|
* Get the current tiling (and resulting swizzling) mode for the bo.
|
|
*
|
|
* \param buf Buffer to get tiling mode for
|
|
* \param tiling_mode returned tiling mode
|
|
* \param swizzle_mode returned swizzling mode
|
|
*/
|
|
int (*bo_get_tiling) (drm_intel_bo *bo, uint32_t * tiling_mode,
|
|
uint32_t * swizzle_mode);
|
|
|
|
/**
|
|
* Set the offset at which this buffer will be softpinned
|
|
* \param bo Buffer to set the softpin offset for
|
|
* \param offset Softpin offset
|
|
*/
|
|
int (*bo_set_softpin_offset) (drm_intel_bo *bo, uint64_t offset);
|
|
|
|
/**
|
|
* Create a visible name for a buffer which can be used by other apps
|
|
*
|
|
* \param buf Buffer to create a name for
|
|
* \param name Returned name
|
|
*/
|
|
int (*bo_flink) (drm_intel_bo *bo, uint32_t * name);
|
|
|
|
/**
|
|
* Returns 1 if mapping the buffer for write could cause the process
|
|
* to block, due to the object being active in the GPU.
|
|
*/
|
|
int (*bo_busy) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Specify the volatility of the buffer.
|
|
* \param bo Buffer to create a name for
|
|
* \param madv The purgeable status
|
|
*
|
|
* Use I915_MADV_DONTNEED to mark the buffer as purgeable, and it will be
|
|
* reclaimed under memory pressure. If you subsequently require the buffer,
|
|
* then you must pass I915_MADV_WILLNEED to mark the buffer as required.
|
|
*
|
|
* Returns 1 if the buffer was retained, or 0 if it was discarded whilst
|
|
* marked as I915_MADV_DONTNEED.
|
|
*/
|
|
int (*bo_madvise) (drm_intel_bo *bo, int madv);
|
|
|
|
int (*check_aperture_space) (drm_intel_bo ** bo_array, int count);
|
|
|
|
/**
|
|
* Disable buffer reuse for buffers which will be shared in some way,
|
|
* as with scanout buffers. When the buffer reference count goes to
|
|
* zero, it will be freed and not placed in the reuse list.
|
|
*
|
|
* \param bo Buffer to disable reuse for
|
|
*/
|
|
int (*bo_disable_reuse) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
* Query whether a buffer is reusable.
|
|
*
|
|
* \param bo Buffer to query
|
|
*/
|
|
int (*bo_is_reusable) (drm_intel_bo *bo);
|
|
|
|
/**
|
|
*
|
|
* Return the pipe associated with a crtc_id so that vblank
|
|
* synchronization can use the correct data in the request.
|
|
* This is only supported for KMS and gem at this point, when
|
|
* unsupported, this function returns -1 and leaves the decision
|
|
* of what to do in that case to the caller
|
|
*
|
|
* \param bufmgr the associated buffer manager
|
|
* \param crtc_id the crtc identifier
|
|
*/
|
|
int (*get_pipe_from_crtc_id) (drm_intel_bufmgr *bufmgr, int crtc_id);
|
|
|
|
/** Returns true if target_bo is in the relocation tree rooted at bo. */
|
|
int (*bo_references) (drm_intel_bo *bo, drm_intel_bo *target_bo);
|
|
|
|
/**< Enables verbose debugging printouts */
|
|
int debug;
|
|
};
|
|
|
|
struct _drm_intel_context {
|
|
unsigned int ctx_id;
|
|
struct _drm_intel_bufmgr *bufmgr;
|
|
};
|
|
|
|
#define ALIGN(value, alignment) ((value + alignment - 1) & ~(alignment - 1))
|
|
#define ROUND_UP_TO(x, y) (((x) + (y) - 1) / (y) * (y))
|
|
#define ROUND_UP_TO_MB(x) ROUND_UP_TO((x), 1024*1024)
|
|
|
|
#endif /* INTEL_BUFMGR_PRIV_H */
|