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MIPS: Loongson-3: Reserve 32MB for RS780E integrated GPU

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commit 3484de7bcbed20ecbf2b8d80671619e7059e2dd7 upstream.

Due to datasheet, reserving 0xff800000~0xffffffff (8MB below 4GB) is
not enough for RS780E integrated GPU's TOM (top of memory) registers
and MSI/MSI-x memory region, so we reserve 0xfe000000~0xffffffff (32MB
below 4GB).

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Steven J . Hill <sjhill@realitydiluted.com>
Cc: Fuxin Zhang <zhangfx@lemote.com>
Cc: Zhangjin Wu <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/12889/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Huacai Chen 2016-03-17 20:41:05 +08:00 • committed by Greg Kroah-Hartman
parent f2c41222fc
commit 1a01c8c418
1 changed files with 3 additions and 3 deletions
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6
arch/mips/loongson64/loongson-3/numa.c
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@ -213,10 +213,10 @@ static void __init node_mem_init(unsigned int node)
BOOTMEM_DEFAULT);
if (node == 0 && node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT)) {
/* Reserve 0xff800000~0xffffffff for RS780E integrated GPU */
/* Reserve 0xfe000000~0xffffffff for RS780E integrated GPU */
reserve_bootmem_node(NODE_DATA(node),
(node_addrspace_offset | 0xff800000),
8 << 20, BOOTMEM_DEFAULT);
(node_addrspace_offset | 0xfe000000),
32 << 20, BOOTMEM_DEFAULT);
}
sparse_memory_present_with_active_regions(node);