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MIPS: fw: Record prom memory

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boot_mem_map is nolonger exist so we need to maintain a list
of prom memory by ourselves.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: yasha.che3@gmail.com
Cc: aurelien@aurel32.net
Cc: sfr@canb.auug.org.au
Cc: fancer.lancer@gmail.com
Cc: matt.redfearn@mips.com
Cc: chenhc@lemote.com
This commit is contained in:
Jiaxun Yang 2019-08-19 22:23:07 +08:00 committed by Paul Burton
parent 6cda3a5e00
commit 0df1007677
No known key found for this signature in database
GPG Key ID: 3EA79FACB57500DD
1 changed files with 18 additions and 6 deletions
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24
arch/mips/fw/arc/memory.c
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@ -27,6 +27,11 @@
#undef DEBUG
#define MAX_PROM_MEM 5
static phys_addr_t prom_mem_base[MAX_PROM_MEM] __initdata;
static phys_addr_t prom_mem_size[MAX_PROM_MEM] __initdata;
static unsigned int nr_prom_mem __initdata;
/*
* For ARC firmware memory functions the unit of meassuring memory is always
* a 4k page of memory
@ -129,6 +134,7 @@ void __init prom_meminit(void)
}
#endif
nr_prom_mem = 0;
p = PROM_NULL_MDESC;
while ((p = ArcGetMemoryDescriptor(p))) {
unsigned long base, size;
@ -139,6 +145,16 @@ void __init prom_meminit(void)
type = prom_memtype_classify(p->type);
add_memory_region(base, size, type);
if (type == BOOT_MEM_ROM_DATA) {
if (nr_prom_mem >= 5) {
pr_err("Too many ROM DATA regions");
continue;
}
prom_mem_base[nr_prom_mem] = base;
prom_mem_size[nr_prom_mem] = size;
nr_prom_mem++;
}
}
}
@ -150,12 +166,8 @@ void __init prom_free_prom_memory(void)
if (prom_flags & PROM_FLAG_DONT_FREE_TEMP)
return;
for (i = 0; i < boot_mem_map.nr_map; i++) {
if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
continue;
addr = boot_mem_map.map[i].addr;
for (i = 0; i < nr_prom_mem; i++) {
free_init_pages("prom memory",
addr, addr + boot_mem_map.map[i].size);
prom_mem_base[i], prom_mem_base[i] + prom_mem_size[i]);
}
}