d8cff811df
This is basically a re-write of the slab allocator into a design where multiple child pools are linked to a parent pool. The intention is that every (GL, pipe) context has its own child pool, while the corresponding parent pool is held by the winsys or screen, or possibly the GL share group. The fast path is still used when objects are freed by the same child pool that allocated them. However, it is now also possible to free an object in a different pool, as long as they belong to the same parent. Objects also survive the destruction of the (child) pool from which they were allocated. The slow path will return freed objects to the child pool from which they were originally allocated. If that child pool was destroyed, the corresponding page is considered an orphan and will be freed once all objects in it have been freed. This allocation pattern is required for pipe_transfers that correspond to (GL) buffer object mappings when the mapping is created in one context which is later destroyed while other contexts of the same share group live on -- see the bug report referenced below. Note that individual drivers do need to migrate to the new interface in order to benefit and fix the bug. v2: use singly-linked lists everywhere v3: use p_atomic_set for page->u.num_remaining Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97894 |
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| .. | ||
| tests/hash_table | ||
| .gitignore | ||
| Android.mk | ||
| bitscan.c | ||
| bitscan.h | ||
| bitset.h | ||
| debug.c | ||
| debug.h | ||
| format_r11g11b10f.h | ||
| format_rgb9e5.h | ||
| format_srgb.h | ||
| format_srgb.py | ||
| half_float.c | ||
| half_float.h | ||
| hash_table.c | ||
| hash_table.h | ||
| list.h | ||
| macros.h | ||
| Makefile.am | ||
| Makefile.sources | ||
| mesa-sha1.c | ||
| mesa-sha1.h | ||
| ralloc.c | ||
| ralloc.h | ||
| register_allocate.c | ||
| register_allocate.h | ||
| rgtc.c | ||
| rgtc.h | ||
| roundeven_test.c | ||
| rounding.h | ||
| SConscript | ||
| set.c | ||
| set.h | ||
| simple_list.h | ||
| slab.c | ||
| slab.h | ||
| string_to_uint_map.cpp | ||
| string_to_uint_map.h | ||
| strndup.c | ||
| strndup.h | ||
| strtod.c | ||
| strtod.h | ||
| texcompress_rgtc_tmp.h | ||
| u_atomic.h | ||
| u_atomic_test.c | ||
| u_endian.h | ||