Lines Matching +full:cpu +full:- +full:release +full:- +full:addr

6 frame buffers, textures, vertices and other graphics-related data. Given
13 manager to be developed and tried to be a one-size-fits-them all
20 GEM started as an Intel-sponsored project in reaction to TTM's
22 providing a solution to every graphics memory-related problems, GEM
31 .. kernel-doc:: drivers/gpu/drm/ttm/ttm_module.c
34 .. kernel-doc:: include/drm/ttm/ttm_caching.h
38 ---------------------------
40 .. kernel-doc:: include/drm/ttm/ttm_device.h
43 .. kernel-doc:: drivers/gpu/drm/ttm/ttm_device.c
47 --------------------------------
49 .. kernel-doc:: include/drm/ttm/ttm_placement.h
53 -----------------------------
55 .. kernel-doc:: include/drm/ttm/ttm_resource.h
58 .. kernel-doc:: drivers/gpu/drm/ttm/ttm_resource.c
62 -----------------------
64 .. kernel-doc:: include/drm/ttm/ttm_tt.h
67 .. kernel-doc:: drivers/gpu/drm/ttm/ttm_tt.c
71 -----------------------
73 .. kernel-doc:: include/drm/ttm/ttm_pool.h
76 .. kernel-doc:: drivers/gpu/drm/ttm/ttm_pool.c
84 userspace or kernel API. GEM exposes a set of standard memory-related
86 let drivers implement hardware-specific operations with their own
89 The GEM userspace API is described in the `GEM - the Graphics Execution
94 driver-specific ioctls.
96 GEM is data-agnostic. It manages abstract buffer objects without knowing
100 using driver-specific ioctls.
104 -  Memory allocation and freeing
105 -  Command execution
106 -  Aperture management at command execution time
112 Device-specific operations, such as command execution, pinning, buffer
114 driver-specific ioctls.
117 ------------------
135 --------------------
143 driver-specific GEM object structure type that embeds an instance of
175 --------------------
177 All GEM objects are reference-counted by the GEM core. References can be
178 acquired and release by calling drm_gem_object_get() and drm_gem_object_put()
183 operation. That operation is mandatory for GEM-enabled drivers and must
192 ------------------
196 All of those are 32-bit integer values; the usual Linux kernel limits
200 object through a driver-specific ioctl, and can use that handle to refer
201 to the GEM object in other standard or driver-specific ioctls. Closing a
227 driver-specific support.
229 GEM also supports buffer sharing with dma-buf file descriptors through
230 PRIME. GEM-based drivers must use the provided helpers functions to
235 Furthermore PRIME also allows cross-device buffer sharing since it is
236 based on dma-bufs.
239 -------------------
242 read/write-like access to buffers, implemented through driver-specific
249 co-exist to map GEM objects to userspace. The first method uses a
250 driver-specific ioctl to perform the mapping operation, calling
252 dubious, seems to be discouraged for new GEM-enabled drivers, and will
256 \*mmap(void \*addr, size_t length, int prot, int flags, int fd, off_t
263 in a driver-specific way and can then be used as the mmap offset
271 userspace, but relies on the driver-provided fault handler to map pages
280 .. code-block:: c
311 Documentation/admin-guide/mm/nommu-mmap.rst
314 ----------------
318 coherent with the GPU. Likewise, if the CPU accesses an object after the
320 coherent with the CPU's view of memory, usually involving GPU cache
321 flushing of various kinds. This core CPU<->GPU coherency management is
322 provided by a device-specific ioctl, which evaluates an object's current
330 -----------------
338 This often involves evicting some objects from the GTT and re-binding
344 be allocated for correct rendering (e.g. 2D blits on pre-965 chips),
350 ----------------------
352 .. kernel-doc:: include/drm/drm_gem.h
355 .. kernel-doc:: drivers/gpu/drm/drm_gem.c
359 ----------------------------------
361 .. kernel-doc:: drivers/gpu/drm/drm_gem_dma_helper.c
364 .. kernel-doc:: include/drm/drm_gem_dma_helper.h
367 .. kernel-doc:: drivers/gpu/drm/drm_gem_dma_helper.c
371 -----------------------------------
373 .. kernel-doc:: drivers/gpu/drm/drm_gem_shmem_helper.c
376 .. kernel-doc:: include/drm/drm_gem_shmem_helper.h
379 .. kernel-doc:: drivers/gpu/drm/drm_gem_shmem_helper.c
383 -----------------------------------
385 .. kernel-doc:: drivers/gpu/drm/drm_gem_vram_helper.c
388 .. kernel-doc:: include/drm/drm_gem_vram_helper.h
391 .. kernel-doc:: drivers/gpu/drm/drm_gem_vram_helper.c
395 -----------------------------------
397 .. kernel-doc:: drivers/gpu/drm/drm_gem_ttm_helper.c
400 .. kernel-doc:: drivers/gpu/drm/drm_gem_ttm_helper.c
406 .. kernel-doc:: drivers/gpu/drm/drm_vma_manager.c
409 .. kernel-doc:: include/drm/drm_vma_manager.h
412 .. kernel-doc:: drivers/gpu/drm/drm_vma_manager.c
421 created for the OPTIMUS range of multi-gpu platforms. To userspace PRIME
422 buffers are dma-buf based file descriptors.
425 ---------------------------
427 .. kernel-doc:: drivers/gpu/drm/drm_prime.c
431 ----------------------
433 .. kernel-doc:: drivers/gpu/drm/drm_prime.c
437 -------------------------
439 .. kernel-doc:: include/drm/drm_prime.h
442 .. kernel-doc:: drivers/gpu/drm/drm_prime.c
449 --------
451 .. kernel-doc:: drivers/gpu/drm/drm_mm.c
455 -------------------------
457 .. kernel-doc:: drivers/gpu/drm/drm_mm.c
461 ------------------------------------------
463 .. kernel-doc:: include/drm/drm_mm.h
466 .. kernel-doc:: drivers/gpu/drm/drm_mm.c
475 --------
477 .. kernel-doc:: drivers/gpu/drm/drm_gpuvm.c
481 ---------------
483 .. kernel-doc:: drivers/gpu/drm/drm_gpuvm.c
489 -------
491 .. kernel-doc:: drivers/gpu/drm/drm_gpuvm.c
495 --------
497 .. kernel-doc:: drivers/gpu/drm/drm_gpuvm.c
501 -----------------------------
503 .. kernel-doc:: include/drm/drm_gpuvm.h
506 .. kernel-doc:: drivers/gpu/drm/drm_gpuvm.c
513 -----------------------------
515 .. kernel-doc:: drivers/gpu/drm/drm_buddy.c
521 .. kernel-doc:: drivers/gpu/drm/drm_cache.c
529 .. kernel-doc:: drivers/gpu/drm/drm_syncobj.c
532 .. kernel-doc:: include/drm/drm_syncobj.h
535 .. kernel-doc:: drivers/gpu/drm/drm_syncobj.c
541 .. kernel-doc:: drivers/gpu/drm/drm_exec.c
544 .. kernel-doc:: include/drm/drm_exec.h
547 .. kernel-doc:: drivers/gpu/drm/drm_exec.c
554 --------
556 .. kernel-doc:: drivers/gpu/drm/scheduler/sched_main.c
560 ------------
562 .. kernel-doc:: drivers/gpu/drm/scheduler/sched_main.c
566 -----------------------------
568 .. kernel-doc:: include/drm/gpu_scheduler.h
571 .. kernel-doc:: drivers/gpu/drm/scheduler/sched_main.c
574 .. kernel-doc:: drivers/gpu/drm/scheduler/sched_entity.c