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| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2019-08-19 22:23:07 +0800 |
|---|---|---|
| committer | Paul Burton <paul.burton@mips.com> | 2019-08-23 14:47:10 +0100 |
| commit | 0df1007677d51e533f6738e1b94a92ec2fe371be (patch) | |
| tree | 7f8f4847d6779ecde0def8b54aa87650d28197ca | |
| parent | 6cda3a5e002f90e6ccce9ed8fb076fe28ae4ef3b (diff) | |
| download | linux-0df1007677d51e533f6738e1b94a92ec2fe371be.tar.bz2 | |
MIPS: fw: Record prom memory
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
| -rw-r--r-- | arch/mips/fw/arc/memory.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c index 429b7f8d2aeb..af44b35d79a1 100644 --- a/arch/mips/fw/arc/memory.c +++ b/arch/mips/fw/arc/memory.c @@ -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]); } } |