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0f65f00a0d
Now that its Gallium dependencies have been resolved, we can move this all out to root. The only nontrivial change here is keeping the pandecode calls in Gallium-panfrost to avoid creating a circular dependency between encoder/decoder. This could be solved with a third drm folder but this seems less intrusive for now and Roman would probably appreciate if I went longer than 8 hours without breaking the Android build. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4382>
107 lines
3.8 KiB
C
107 lines
3.8 KiB
C
/**************************************************************************
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*
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* Copyright 2018-2019 Alyssa Rosenzweig
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* Copyright 2018-2019 Collabora, Ltd.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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#ifndef PAN_DEVICE_H
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#define PAN_DEVICE_H
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#include <xf86drm.h>
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#include "renderonly/renderonly.h"
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#include "util/u_dynarray.h"
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#include "util/bitset.h"
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#include "util/set.h"
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#include "util/list.h"
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#include <panfrost-misc.h>
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/* Driver limits */
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#define PAN_MAX_CONST_BUFFERS 16
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/* Transient slab size. This is a balance between fragmentation against cache
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* locality and ease of bookkeeping */
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#define TRANSIENT_SLAB_PAGES (32) /* 128kb */
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#define TRANSIENT_SLAB_SIZE (4096 * TRANSIENT_SLAB_PAGES)
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/* Maximum number of transient slabs so we don't need dynamic arrays. Most
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* interesting Mali boards are 4GB RAM max, so if the entire RAM was filled
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* with transient slabs, you could never exceed (4GB / TRANSIENT_SLAB_SIZE)
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* allocations anyway. By capping, we can use a fixed-size bitset for tracking
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* free slabs, eliminating quite a bit of complexity. We can pack the free
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* state of 8 slabs into a single byte, so for 128kb transient slabs the bitset
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* occupies a cheap 4kb of memory */
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#define MAX_TRANSIENT_SLABS (1024*1024 / TRANSIENT_SLAB_PAGES)
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/* How many power-of-two levels in the BO cache do we want? 2^12
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* minimum chosen as it is the page size that all allocations are
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* rounded to */
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#define MIN_BO_CACHE_BUCKET (12) /* 2^12 = 4KB */
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#define MAX_BO_CACHE_BUCKET (22) /* 2^22 = 4MB */
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/* Fencepost problem, hence the off-by-one */
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#define NR_BO_CACHE_BUCKETS (MAX_BO_CACHE_BUCKET - MIN_BO_CACHE_BUCKET + 1)
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struct panfrost_device {
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/* For ralloc */
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void *memctx;
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int fd;
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/* Properties of the GPU in use */
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unsigned gpu_id;
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unsigned core_count;
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unsigned thread_tls_alloc;
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unsigned quirks;
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drmVersionPtr kernel_version;
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struct renderonly *ro;
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pthread_mutex_t active_bos_lock;
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struct set *active_bos;
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struct {
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pthread_mutex_t lock;
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/* List containing all cached BOs sorted in LRU (Least
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* Recently Used) order. This allows us to quickly evict BOs
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* that are more than 1 second old.
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*/
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struct list_head lru;
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/* The BO cache is a set of buckets with power-of-two sizes
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* ranging from 2^12 (4096, the page size) to
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* 2^(12 + MAX_BO_CACHE_BUCKETS).
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* Each bucket is a linked list of free panfrost_bo objects. */
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struct list_head buckets[NR_BO_CACHE_BUCKETS];
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} bo_cache;
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};
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#endif
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