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authorLinus Torvalds <torvalds@linux-foundation.org>2024-03-12 10:56:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-03-12 10:56:28 -0700
commit65d287c7eb1d14e0f4d56f19cec30d97fc7e8f66 (patch)
tree2cd93443a61a1bfb581d90d7047f378eba5edc7b /arch/hexagon
parent3efa10eb97e98cca0c80b5b293a149eba8fb1d7e (diff)
parent5394f1e9b687bcf26595cabf83483e568676128d (diff)
Merge tag 'asm-generic-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann: "Just two small updates this time: - A series I did to unify the definition of PAGE_SIZE through Kconfig, intended to help with a vdso rework that needs the constant but cannot include the normal kernel headers when building the compat VDSO on arm64 and potentially others - a patch from Yan Zhao to remove the pfn_to_virt() definitions from a couple of architectures after finding they were both incorrect and entirely unused" * tag 'asm-generic-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: arch: define CONFIG_PAGE_SIZE_*KB on all architectures arch: simplify architecture specific page size configuration arch: consolidate existing CONFIG_PAGE_SIZE_*KB definitions mm: Remove broken pfn_to_virt() on arch csky/hexagon/openrisc
Diffstat (limited to 'arch/hexagon')
-rw-r--r--arch/hexagon/Kconfig24
-rw-r--r--arch/hexagon/include/asm/page.h12
2 files changed, 5 insertions, 31 deletions
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index a880ee067d2e..1414052e7d6b 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -8,6 +8,10 @@ config HEXAGON
select ARCH_HAS_SYNC_DMA_FOR_DEVICE
select ARCH_NO_PREEMPT
select DMA_GLOBAL_POOL
+ select HAVE_PAGE_SIZE_4KB
+ select HAVE_PAGE_SIZE_16KB
+ select HAVE_PAGE_SIZE_64KB
+ select HAVE_PAGE_SIZE_256KB
# Other pending projects/to-do items.
# select HAVE_REGS_AND_STACK_ACCESS_API
# select HAVE_HW_BREAKPOINT if PERF_EVENTS
@@ -120,26 +124,6 @@ config NR_CPUS
This is purely to save memory - each supported CPU adds
approximately eight kilobytes to the kernel image.
-choice
- prompt "Kernel page size"
- default PAGE_SIZE_4KB
- help
- Changes the default page size; use with caution.
-
-config PAGE_SIZE_4KB
- bool "4KB"
-
-config PAGE_SIZE_16KB
- bool "16KB"
-
-config PAGE_SIZE_64KB
- bool "64KB"
-
-config PAGE_SIZE_256KB
- bool "256KB"
-
-endchoice
-
source "kernel/Kconfig.hz"
endmenu
diff --git a/arch/hexagon/include/asm/page.h b/arch/hexagon/include/asm/page.h
index 10f1bc07423c..8a6af57274c2 100644
--- a/arch/hexagon/include/asm/page.h
+++ b/arch/hexagon/include/asm/page.h
@@ -13,27 +13,22 @@
/* This is probably not the most graceful way to handle this. */
#ifdef CONFIG_PAGE_SIZE_4KB
-#define PAGE_SHIFT 12
#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_4KB
#endif
#ifdef CONFIG_PAGE_SIZE_16KB
-#define PAGE_SHIFT 14
#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_16KB
#endif
#ifdef CONFIG_PAGE_SIZE_64KB
-#define PAGE_SHIFT 16
#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_64KB
#endif
#ifdef CONFIG_PAGE_SIZE_256KB
-#define PAGE_SHIFT 18
#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_256KB
#endif
#ifdef CONFIG_PAGE_SIZE_1MB
-#define PAGE_SHIFT 20
#define HEXAGON_L1_PTE_SIZE __HVM_PDE_S_1MB
#endif
@@ -50,6 +45,7 @@
#define HVM_HUGEPAGE_SIZE 0x5
#endif
+#define PAGE_SHIFT CONFIG_PAGE_SHIFT
#define PAGE_SIZE (1UL << PAGE_SHIFT)
#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1))
@@ -133,12 +129,6 @@ static inline unsigned long virt_to_pfn(const void *kaddr)
return __pa(kaddr) >> PAGE_SHIFT;
}
-static inline void *pfn_to_virt(unsigned long pfn)
-{
- return (void *)((unsigned long)__va(pfn) << PAGE_SHIFT);
-}
-
-
#define page_to_virt(page) __va(page_to_phys(page))
#include <asm/mem-layout.h>