2 * © Copyright 2017-2018 Alyssa Rosenzweig
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
25 #ifndef __PAN_ALLOCATE_H__
26 #define __PAN_ALLOCATE_H__
31 #include "pipebuffer/pb_slab.h"
33 #include <panfrost-misc.h>
35 struct panfrost_context
;
39 #define HEAP_TEXTURE 0
41 /* Single-frame (transient) command stream memory, done at the block scale
42 * rather than the individual cmdstream alllocation scale. We use pb_alloc for
43 * pooling, but we have to implement our own logic atop the API for performance
44 * reasons when considering many low-latency tiny heterogenous allocations */
46 #define HEAP_TRANSIENT 1
48 /* Multi-frame descriptor memory (replaces what used to be
49 * cmdstream_persistent), for long-living small allocations */
51 #define HEAP_DESCRIPTOR 2
53 /* Represents a fat pointer for GPU-mapped memory, returned from the transient
54 * allocator and not used for much else */
56 struct panfrost_transfer
{
61 struct panfrost_memory
{
62 /* Subclassing slab object */
65 /* Backing for the slab in memory */
73 /* Slab entry sizes range from 2^min to 2^max. In this case, we range from 1k
74 * to 16MB. Numbers are kind of arbitrary but these seem to work alright in
77 #define MIN_SLAB_ENTRY_SIZE (10)
78 #define MAX_SLAB_ENTRY_SIZE (24)
80 struct panfrost_memory_entry
{
82 struct pb_slab_entry base
;
84 /* Have we been freed? */
87 /* Offset into the slab of the entry */
91 /* Functions for replay */
92 mali_ptr
pandev_upload(int cheating_offset
, int *stack_bottom
, mali_ptr base
, void *base_map
, const void *data
, size_t sz
, bool no_pad
);
93 mali_ptr
pandev_upload_sequential(mali_ptr base
, void *base_map
, const void *data
, size_t sz
);
95 /* Functions for the actual Galliumish driver */
96 mali_ptr
panfrost_upload(struct panfrost_memory
*mem
, const void *data
, size_t sz
, bool no_pad
);
97 mali_ptr
panfrost_upload_sequential(struct panfrost_memory
*mem
, const void *data
, size_t sz
);
99 struct panfrost_transfer
100 panfrost_allocate_transient(struct panfrost_context
*ctx
, size_t sz
);
103 panfrost_upload_transient(struct panfrost_context
*ctx
, const void *data
, size_t sz
);
106 panfrost_allocate_transfer(struct panfrost_memory
*mem
, size_t sz
, mali_ptr
*gpu
);
108 static inline mali_ptr
109 panfrost_reserve(struct panfrost_memory
*mem
, size_t sz
)
111 mem
->stack_bottom
+= sz
;
112 return mem
->gpu
+ (mem
->stack_bottom
- sz
);
115 struct panfrost_transfer
116 panfrost_allocate_chunk(struct panfrost_context
*ctx
, size_t size
, unsigned heap_id
);
119 #define inff INFINITY
121 #define R(...) #__VA_ARGS__
122 #define ALIGN(x, y) (((x) + ((y) - 1)) & ~((y) - 1))
124 #endif /* __PAN_ALLOCATE_H__ */