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adsprpc: Map dynamic loading memory persistent

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Add a structure variable to identify persistent map
of cma buffer for dynamic loading on Audio PD
and map persistent.Thus, decreasing the chance
for defragmentation within the cma region.

Change-Id: I1741677bf3c994e7c57223d0543179dbf43d5ca8
Signed-off-by: Jeya R <jeyr@codeaurora.org>
This commit is contained in:
Jeya R 2021-04-28 21:48:50 +05:30 • committed by Gerrit - the friendly Code Review server
commit 834ac339e9
1 changed files with 15 additions and 7 deletions
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22
drivers/char/adsprpc.c
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@ -568,8 +568,8 @@ struct fastrpc_mmap {
uintptr_t raddr;
int uncached;
int secure;
/* Minidump unique index */
int frpc_md_index;
bool is_persistent; //the map is persistenet across sessions
int frpc_md_index; //Minidump unique index
uintptr_t attr;
struct timespec64 map_start_time;
struct timespec64 map_end_time;
@ -1196,7 +1196,7 @@ static int fastrpc_mmap_remove(struct fastrpc_file *fl, int fd, uintptr_t va,
hlist_for_each_entry_safe(map, n, &me->maps, hn) {
if ((fd < 0 || map->fd == fd) && map->raddr == va &&
map->raddr + map->len == va + len &&
map->refs == 1) {
map->refs == 1 && !map->is_persistent) {
match = map;
hlist_del_init(&map->hn);
break;
@ -1248,7 +1248,7 @@ static void fastrpc_mmap_free(struct fastrpc_mmap *map, uint32_t flags)
map->flags == ADSP_MMAP_REMOTE_HEAP_ADDR) {
spin_lock(&me->hlock);
map->refs--;
if (!map->refs)
if (!map->refs && !map->is_persistent)
hlist_del_init(&map->hn);
spin_unlock(&me->hlock);
if (map->refs > 0) {
@ -3863,7 +3863,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_file *fl,
* If remote-heap VMIDs are defined in DTSI, then do
* hyp_assign from HLOS to those VMs (LPASS, ADSP).
*/
if (rhvm->vmid) {
if (rhvm->vmid && mem && !mem->is_persistent) {
err = hyp_assign_phys(phys, (uint64_t)size,
hlosvm, 1,
rhvm->vmid, rhvm->vmperm, rhvm->vmcount);
@ -3877,6 +3877,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_file *fl,
rh_hyp_done = 1;
}
me->staticpd_flags = 1;
mem->is_persistent = true;
}
/*
@ -4516,6 +4517,10 @@ static int fastrpc_mmap_remove_ssr(struct fastrpc_file *fl)
spin_lock(&me->hlock);
hlist_for_each_entry_safe(map, n, &me->maps, hn) {
match = map;
if (map->is_persistent) {
match = NULL;
continue;
}
hlist_del_init(&map->hn);
break;
}
@ -4655,8 +4660,11 @@ static int fastrpc_internal_munmap(struct fastrpc_file *fl,
err = -EINVAL;
goto bail;
}
VERIFY(err, !(err = fastrpc_munmap_on_dsp(fl, map->raddr,
map->phys, map->size, map->flags)));
if (!map->is_persistent) {
VERIFY(err, !(err = fastrpc_munmap_on_dsp(fl, map->raddr,
map->phys, map->size, map->flags)));
}
if (err)
goto bail;
mutex_lock(&fl->map_mutex);