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authorLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 12:07:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 12:07:54 -0800
commit8312f41f08edc641aa927d31fb71319694ae9c42 (patch)
treee21de0f34fa104acc35b87e6191fa3a5fe40d8eb /arch/mips/loongson64/numa.c
parent66fc6a6254c7a138aef7806bd933c218e1aefcfc (diff)
parentad4fddef5f2345aa9214e979febe2f47639c10d9 (diff)
Merge tag 'mips_5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS updates from Thomas Bogendoerfer: - enable GCOV - rework setup of protection map - add support for more MSCC platforms - add sysfs boardinfo for Loongson64 - enable KASLR for Loogson64 - add reset controller for BCM63xx - cleanups and fixes * tag 'mips_5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: (70 commits) mips: fix Section mismatch in reference MAINTAINERS: Add linux-mips mailing list to JZ47xx entries MAINTAINERS: Remove JZ4780 DMA driver entry MAINTAINERS: chenhc@lemote.com -> chenhuacai@kernel.org MIPS: Octeon: irq: Alloc desc before configuring IRQ MIPS: mm: Add back define for PAGE_SHARED MIPS: Select ARCH_KEEP_MEMBLOCK if DEBUG_KERNEL to enable sysfs memblock debug mips: lib: uncached: fix non-standard usage of variable 'sp' MIPS: DTS: img: Fix schema warnings for pwm-leds MIPS: KASLR: Avoid endless loop in sync_icache if synci_step is zero MIPS: Move memblock_dump_all() to the end of setup_arch() MIPS: SMP-CPS: Add support for irq migration when CPU offline MIPS: OCTEON: Don't add kernel sections into memblock allocator MIPS: Don't round up kernel sections size for memblock_add() MIPS: Enable GCOV MIPS: configs: drop unused BACKLIGHT_GENERIC option MIPS: Loongson64: Fix up reserving kernel memory range MIPS: mm: Remove unused is_aligned_hugepage_range MIPS: No need to check CPU 0 in {loongson3,bmips,octeon}_cpu_disable() mips: cdmm: fix use-after-free in mips_cdmm_bus_discover ...
Diffstat (limited to 'arch/mips/loongson64/numa.c')
-rw-r--r--arch/mips/loongson64/numa.c27
1 files changed, 7 insertions, 20 deletions
diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c
index cf9459f79f9b..c6f0c48384f8 100644
--- a/arch/mips/loongson64/numa.c
+++ b/arch/mips/loongson64/numa.c
@@ -35,23 +35,6 @@ EXPORT_SYMBOL(__node_data);
cpumask_t __node_cpumask[MAX_NUMNODES];
EXPORT_SYMBOL(__node_cpumask);
-static void enable_lpa(void)
-{
- unsigned long value;
-
- value = __read_32bit_c0_register($16, 3);
- value |= 0x00000080;
- __write_32bit_c0_register($16, 3, value);
- value = __read_32bit_c0_register($16, 3);
- pr_info("CP0_Config3: CP0 16.3 (0x%lx)\n", value);
-
- value = __read_32bit_c0_register($5, 1);
- value |= 0x20000000;
- __write_32bit_c0_register($5, 1, value);
- value = __read_32bit_c0_register($5, 1);
- pr_info("CP0_PageGrain: CP0 5.1 (0x%lx)\n", value);
-}
-
static void cpu_node_probe(void)
{
int i;
@@ -168,6 +151,9 @@ static void __init node_mem_init(unsigned int node)
NODE_DATA(node)->node_spanned_pages = end_pfn - start_pfn;
if (node == 0) {
+ /* kernel start address */
+ unsigned long kernel_start_pfn = PFN_DOWN(__pa_symbol(&_text));
+
/* kernel end address */
unsigned long kernel_end_pfn = PFN_UP(__pa_symbol(&_end));
@@ -175,8 +161,8 @@ static void __init node_mem_init(unsigned int node)
max_low_pfn = end_pfn;
/* Reserve the kernel text/data/bss */
- memblock_reserve(start_pfn << PAGE_SHIFT,
- ((kernel_end_pfn - start_pfn) << PAGE_SHIFT));
+ memblock_reserve(kernel_start_pfn << PAGE_SHIFT,
+ ((kernel_end_pfn - kernel_start_pfn) << PAGE_SHIFT));
/* Reserve 0xfe000000~0xffffffff for RS780E integrated GPU */
if (node_end_pfn(0) >= (0xffffffff >> PAGE_SHIFT))
@@ -243,7 +229,8 @@ EXPORT_SYMBOL(pcibus_to_node);
void __init prom_init_numa_memory(void)
{
- enable_lpa();
+ pr_info("CP0_Config3: CP0 16.3 (0x%x)\n", read_c0_config3());
+ pr_info("CP0_PageGrain: CP0 5.1 (0x%x)\n", read_c0_pagegrain());
prom_meminit();
}
EXPORT_SYMBOL(prom_init_numa_memory);