From 6b2ad8d763727b887d85c990747271ee804d9abb Mon Sep 17 00:00:00 2001 From: Mike Rapoport Date: Mon, 14 Dec 2020 19:10:07 -0800 Subject: m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM The pg_data_t node structures and their initialization currently depends on !CONFIG_SINGLE_MEMORY_CHUNK. Since they are required only for DISCONTIGMEM make this dependency explicit and replace usage of CONFIG_SINGLE_MEMORY_CHUNK with CONFIG_DISCONTIGMEM where appropriate. The CONFIG_SINGLE_MEMORY_CHUNK was implicitly disabled on the ColdFire MMU variant, although it always presumed a single memory bank. As there is no actual need for DISCONTIGMEM in this case, make sure that ColdFire MMU systems set CONFIG_SINGLE_MEMORY_CHUNK to 'y'. Link: https://lkml.kernel.org/r/20201101170454.9567-12-rppt@kernel.org Signed-off-by: Mike Rapoport Cc: Alexey Dobriyan Cc: Catalin Marinas Cc: Geert Uytterhoeven Cc: Greg Ungerer Cc: John Paul Adrian Glaubitz Cc: Jonathan Corbet Cc: Matt Turner Cc: Meelis Roos Cc: Michael Schmitz Cc: Russell King Cc: Tony Luck Cc: Vineet Gupta Cc: Will Deacon Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/m68k/Kconfig.cpu | 4 ++-- arch/m68k/include/asm/page_mm.h | 2 +- arch/m68k/include/asm/virtconvert.h | 2 +- arch/m68k/mm/init.c | 4 ++-- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu index 694c4fca9f5d..e8ad721e52f6 100644 --- a/arch/m68k/Kconfig.cpu +++ b/arch/m68k/Kconfig.cpu @@ -373,7 +373,7 @@ config RMW_INSNS config SINGLE_MEMORY_CHUNK bool "Use one physical chunk of memory only" if ADVANCED && !SUN3 depends on MMU - default y if SUN3 + default y if SUN3 || MMU_COLDFIRE select NEED_MULTIPLE_NODES help Ignore all but the first contiguous chunk of physical memory for VM @@ -406,7 +406,7 @@ config M68K_L2_CACHE config NODES_SHIFT int default "3" - depends on !SINGLE_MEMORY_CHUNK + depends on DISCONTIGMEM config CPU_HAS_NO_BITFIELDS bool diff --git a/arch/m68k/include/asm/page_mm.h b/arch/m68k/include/asm/page_mm.h index e6b75992192b..0e794051d3bb 100644 --- a/arch/m68k/include/asm/page_mm.h +++ b/arch/m68k/include/asm/page_mm.h @@ -126,7 +126,7 @@ static inline void *__va(unsigned long x) extern int m68k_virt_to_node_shift; -#ifdef CONFIG_SINGLE_MEMORY_CHUNK +#ifndef CONFIG_DISCONTIGMEM #define __virt_to_node(addr) (&pg_data_map[0]) #else extern struct pglist_data *pg_data_table[]; diff --git a/arch/m68k/include/asm/virtconvert.h b/arch/m68k/include/asm/virtconvert.h index dfe43083b579..eb9eb5cb23a6 100644 --- a/arch/m68k/include/asm/virtconvert.h +++ b/arch/m68k/include/asm/virtconvert.h @@ -29,7 +29,7 @@ static inline void *phys_to_virt(unsigned long address) } /* Permanent address of a page. */ -#if defined(CONFIG_MMU) && defined(CONFIG_SINGLE_MEMORY_CHUNK) +#if defined(CONFIG_MMU) && !defined(CONFIG_DISCONTIGMEM) #define page_to_phys(page) \ __pa(PAGE_OFFSET + (((page) - pg_data_map[0].node_mem_map) << PAGE_SHIFT)) #else diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 53040857a9ed..4b46ceace3d3 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -47,14 +47,14 @@ EXPORT_SYMBOL(pg_data_map); int m68k_virt_to_node_shift; -#ifndef CONFIG_SINGLE_MEMORY_CHUNK +#ifdef CONFIG_DISCONTIGMEM pg_data_t *pg_data_table[65]; EXPORT_SYMBOL(pg_data_table); #endif void __init m68k_setup_node(int node) { -#ifndef CONFIG_SINGLE_MEMORY_CHUNK +#ifdef CONFIG_DISCONTIGMEM struct m68k_mem_info *info = m68k_memory + node; int i, end; -- cgit v1.2.3