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author | Michael Ellerman | 2021-05-08 21:12:55 +1000 |
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committer | Michael Ellerman | 2021-05-08 21:12:55 +1000 |
commit | f96271cefe6dfd1cb04195b76f4a33e185cd7f92 (patch) | |
tree | f290b3e7aa9c12fdc4853ce97c150c4f9abd90a3 /arch/arm/mm/init.c | |
parent | 32b48bf8514c28cdc89cd8069eceeb6e6cff0612 (diff) | |
parent | dd860052c99b1e088352bdd4fb7aef46f8d2ef47 (diff) |
Merge branch 'master' into next
Merge master back into next, this allows us to resolve some conflicts in
arch/powerpc/Kconfig, and also re-sort the symbols under config PPC so
that they are in alphabetical order again.
Diffstat (limited to 'arch/arm/mm/init.c')
-rw-r--r-- | arch/arm/mm/init.c | 27 |
1 files changed, 5 insertions, 22 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 7022b7b5c400..9d4744a632c6 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -301,7 +301,11 @@ static void __init free_highpages(void) void __init mem_init(void) { #ifdef CONFIG_ARM_LPAE - swiotlb_init(1); + if (swiotlb_force == SWIOTLB_FORCE || + max_pfn > arm_dma_pfn_limit) + swiotlb_init(1); + else + swiotlb_force = SWIOTLB_NO_FORCE; #endif set_max_mapnr(pfn_to_page(max_pfn) - mem_map); @@ -485,33 +489,12 @@ static int __mark_rodata_ro(void *unused) return 0; } -static int kernel_set_to_readonly __read_mostly; - void mark_rodata_ro(void) { - kernel_set_to_readonly = 1; stop_machine(__mark_rodata_ro, NULL, NULL); debug_checkwx(); } -void set_kernel_text_rw(void) -{ - if (!kernel_set_to_readonly) - return; - - set_section_perms(ro_perms, ARRAY_SIZE(ro_perms), false, - current->active_mm); -} - -void set_kernel_text_ro(void) -{ - if (!kernel_set_to_readonly) - return; - - set_section_perms(ro_perms, ARRAY_SIZE(ro_perms), true, - current->active_mm); -} - #else static inline void fix_kernmem_perms(void) { } #endif /* CONFIG_STRICT_KERNEL_RWX */ |