4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Huacai Chen <chenhc@xxxxxxxxxx> 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@xxxxxxxxxx> Cc: Aurelien Jarno <aurelien@xxxxxxxxxxx> Cc: Steven J . Hill <sjhill@xxxxxxxxxxxxxxxxxx> Cc: Fuxin Zhang <zhangfx@xxxxxxxxxx> Cc: Zhangjin Wu <wuzhangjin@xxxxxxxxx> Cc: linux-mips@xxxxxxxxxxxxxx Patchwork: https://patchwork.linux-mips.org/patch/12889/ Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/loongson64/loongson-3/numa.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) --- a/arch/mips/loongson64/loongson-3/numa.c +++ b/arch/mips/loongson64/loongson-3/numa.c @@ -213,10 +213,10 @@ static void __init node_mem_init(unsigne 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);
