[PATCH 11/13] m68k/mm: make node data and node setup depend on CONFIG_DISCONTIGMEM
From: Mike Rapoport <rppt@kernel.org>
Date: 2020-10-27 11:31:45
Also in:
linux-alpha, linux-doc, linux-fsdevel, linux-m68k, linux-mm, lkml
Subsystem:
m68k architecture, the rest · Maintainers:
Geert Uytterhoeven, Linus Torvalds
From: Mike Rapoport <redacted> 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'. Signed-off-by: Mike Rapoport <redacted> --- arch/m68k/Kconfig.cpu | 6 +++--- arch/m68k/include/asm/page_mm.h | 2 +- arch/m68k/mm/init.c | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
index 694c4fca9f5d..3af0fca03803 100644
--- a/arch/m68k/Kconfig.cpu
+++ b/arch/m68k/Kconfig.cpu@@ -20,6 +20,7 @@ choice config M68KCLASSIC bool "Classic M68K CPU family support" + select NEED_MULTIPLE_NODES if DISCONTIGMEM config COLDFIRE bool "Coldfire CPU family support"
@@ -373,8 +374,7 @@ 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 - select NEED_MULTIPLE_NODES + default y if SUN3 || MMU_COLDFIRE help Ignore all but the first contiguous chunk of physical memory for VM purposes. This will save a few bytes kernel size and may speed up
@@ -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/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;
--
2.28.0
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