1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
|
/*
* Copyright (C) 2013-2015 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence.
*
* A copy of the licence is included with the program, and can also be obtained from Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <linux/mm.h>
#include <linux/list.h>
#include <linux/mm_types.h>
#include <linux/fs.h>
#include <linux/dma-mapping.h>
#include <linux/highmem.h>
#include <asm/cacheflush.h>
#include <linux/sched.h>
#ifdef CONFIG_ARM
#include <asm/outercache.h>
#endif
#include <asm/dma-mapping.h>
#include "mali_memory.h"
#include "mali_kernel_common.h"
#include "mali_uk_types.h"
#include "mali_osk.h"
#include "mali_kernel_linux.h"
#include "mali_memory_defer_bind.h"
#include "mali_executor.h"
#include "mali_osk.h"
#include "mali_scheduler.h"
#include "mali_gp_job.h"
mali_defer_bind_manager *mali_dmem_man = NULL;
static u32 mali_dmem_get_gp_varying_size(struct mali_gp_job *gp_job)
{
return gp_job->uargs.varying_memsize / _MALI_OSK_MALI_PAGE_SIZE;
}
_mali_osk_errcode_t mali_mem_defer_bind_manager_init(void)
{
mali_dmem_man = _mali_osk_calloc(1, sizeof(struct mali_defer_bind_manager));
if (!mali_dmem_man)
return _MALI_OSK_ERR_NOMEM;
atomic_set(&mali_dmem_man->num_used_pages, 0);
atomic_set(&mali_dmem_man->num_dmem, 0);
return _MALI_OSK_ERR_OK;
}
void mali_mem_defer_bind_manager_destory(void)
{
if (mali_dmem_man) {
MALI_DEBUG_ASSERT(0 == atomic_read(&mali_dmem_man->num_dmem));
kfree(mali_dmem_man);
}
mali_dmem_man = NULL;
}
/*allocate pages from OS memory*/
_mali_osk_errcode_t mali_mem_defer_alloc_mem(u32 require, struct mali_session_data *session, mali_defer_mem_block *dblock)
{
int retval = 0;
u32 num_pages = require;
mali_mem_os_mem os_mem;
retval = mali_mem_os_alloc_pages(&os_mem, num_pages * _MALI_OSK_MALI_PAGE_SIZE);
/* add to free pages list */
if (0 == retval) {
MALI_DEBUG_PRINT(4, ("mali_mem_defer_alloc_mem ,,*** pages allocate = 0x%x \n", num_pages));
list_splice(&os_mem.pages, &dblock->free_pages);
atomic_add(os_mem.count, &dblock->num_free_pages);
atomic_add(os_mem.count, &session->mali_mem_allocated_pages);
if (atomic_read(&session->mali_mem_allocated_pages) * MALI_MMU_PAGE_SIZE > session->max_mali_mem_allocated_size) {
session->max_mali_mem_allocated_size = atomic_read(&session->mali_mem_allocated_pages) * MALI_MMU_PAGE_SIZE;
}
return _MALI_OSK_ERR_OK;
} else
return _MALI_OSK_ERR_FAULT;
}
_mali_osk_errcode_t mali_mem_prepare_mem_for_job(struct mali_gp_job *next_gp_job, mali_defer_mem_block *dblock)
{
u32 require_page;
if (!next_gp_job)
return _MALI_OSK_ERR_FAULT;
require_page = mali_dmem_get_gp_varying_size(next_gp_job);
MALI_DEBUG_PRINT(4, ("mali_mem_defer_prepare_mem_work, require alloc page 0x%x\n",
require_page));
/* allocate more pages from OS */
if (_MALI_OSK_ERR_OK != mali_mem_defer_alloc_mem(require_page, next_gp_job->session, dblock)) {
MALI_DEBUG_PRINT(1, ("ERROR##mali_mem_defer_prepare_mem_work, allocate page failed!!"));
return _MALI_OSK_ERR_NOMEM;
}
next_gp_job->bind_flag = MALI_DEFER_BIND_MEMORY_PREPARED;
return _MALI_OSK_ERR_OK;
}
/* do preparetion for allocation before defer bind */
_mali_osk_errcode_t mali_mem_defer_bind_allocation_prepare(mali_mem_allocation *alloc, struct list_head *list)
{
mali_mem_backend *mem_bkend = NULL;
struct mali_backend_bind_list *bk_list = _mali_osk_calloc(1, sizeof(struct mali_backend_bind_list));
if (NULL == bk_list)
return _MALI_OSK_ERR_FAULT;
INIT_LIST_HEAD(&bk_list->node);
/* Get backend memory */
mutex_lock(&mali_idr_mutex);
if (!(mem_bkend = idr_find(&mali_backend_idr, alloc->backend_handle))) {
MALI_DEBUG_PRINT(1, ("Can't find memory backend in defer bind!\n"));
mutex_unlock(&mali_idr_mutex);
kfree(bk_list);
return _MALI_OSK_ERR_FAULT;
}
mutex_unlock(&mali_idr_mutex);
MALI_DEBUG_PRINT(4, ("bind_allocation_prepare:: allocation =%x vaddr=0x%x!\n", alloc, alloc->mali_vma_node.vm_node.start));
INIT_LIST_HEAD(&mem_bkend->os_mem.pages);
bk_list->bkend = mem_bkend;
bk_list->vaddr = alloc->mali_vma_node.vm_node.start;
bk_list->session = alloc->session;
bk_list->page_num = mem_bkend->size / _MALI_OSK_MALI_PAGE_SIZE;
MALI_DEBUG_ASSERT(mem_bkend->type == MALI_MEM_OS);
/* add to job to do list */
list_add(&bk_list->node, list);
return _MALI_OSK_ERR_OK;
}
/* bind phyiscal memory to allocation
This function will be called in IRQ handler*/
static _mali_osk_errcode_t mali_mem_defer_bind_allocation(struct mali_backend_bind_list *bk_node,
struct list_head *pages)
{
struct mali_session_data *session = bk_node->session;
mali_mem_backend *mem_bkend = bk_node->bkend;
MALI_DEBUG_PRINT(4, ("mali_mem_defer_bind_allocation, bind bkend = %x page num=0x%x vaddr=%x session=%x\n", mem_bkend, bk_node->page_num, bk_node->vaddr, session));
MALI_DEBUG_ASSERT(mem_bkend->type == MALI_MEM_OS);
list_splice(pages, &mem_bkend->os_mem.pages);
mem_bkend->os_mem.count = bk_node->page_num;
if (mem_bkend->type == MALI_MEM_OS) {
mali_mem_os_mali_map(&mem_bkend->os_mem, session, bk_node->vaddr, 0,
mem_bkend->os_mem.count, MALI_MMU_FLAGS_DEFAULT);
}
smp_wmb();
bk_node->flag = MALI_DEFER_BIND_MEMORY_BINDED;
mem_bkend->flags &= ~MALI_MEM_BACKEND_FLAG_NOT_BINDED;
mem_bkend->flags |= MALI_MEM_BACKEND_FLAG_BINDED;
return _MALI_OSK_ERR_OK;
}
static struct list_head *mali_mem_defer_get_free_page_list(u32 count, struct list_head *pages, mali_defer_mem_block *dblock)
{
int i = 0;
struct mali_page_node *m_page, *m_tmp;
if (atomic_read(&dblock->num_free_pages) < count) {
return NULL;
} else {
list_for_each_entry_safe(m_page, m_tmp, &dblock->free_pages, list) {
if (i < count) {
list_move_tail(&m_page->list, pages);
} else {
break;
}
i++;
}
MALI_DEBUG_ASSERT(i == count);
atomic_sub(count, &dblock->num_free_pages);
return pages;
}
}
/* called in job start IOCTL to bind physical memory for each allocations
@ bk_list backend list to do defer bind
@ pages page list to do this bind
@ count number of pages
*/
_mali_osk_errcode_t mali_mem_defer_bind(u32 count, struct mali_gp_job *gp,
struct mali_defer_mem_block *dmem_block)
{
struct mali_defer_mem *dmem = NULL;
struct mali_backend_bind_list *bkn, *bkn_tmp;
LIST_HEAD(pages);
MALI_DEBUG_PRINT(4, ("#BIND: GP job=%x## \n", gp));
dmem = (mali_defer_mem *)_mali_osk_calloc(1, sizeof(struct mali_defer_mem));
if (dmem) {
INIT_LIST_HEAD(&dmem->node);
gp->dmem = dmem;
} else {
return _MALI_OSK_ERR_NOMEM;
}
atomic_add(1, &mali_dmem_man->num_dmem);
/* for each bk_list backend, do bind */
list_for_each_entry_safe(bkn, bkn_tmp , &gp->vary_todo, node) {
INIT_LIST_HEAD(&pages);
if (likely(mali_mem_defer_get_free_page_list(bkn->page_num, &pages, dmem_block))) {
list_del(&bkn->node);
mali_mem_defer_bind_allocation(bkn, &pages);
_mali_osk_free(bkn);
} else {
/* not enough memory will not happen */
MALI_DEBUG_PRINT(1, ("#BIND: NOT enough memory when binded !!## \n"));
MALI_DEBUG_ASSERT(0);
}
}
if (!list_empty(&gp->vary_todo)) {
MALI_DEBUG_ASSERT(0);
}
dmem->flag = MALI_DEFER_BIND_MEMORY_BINDED;
return _MALI_OSK_ERR_OK;
}
void mali_mem_defer_dmem_free(struct mali_gp_job *gp)
{
if (gp->dmem) {
atomic_dec(&mali_dmem_man->num_dmem);
_mali_osk_free(gp->dmem);
}
}
|
