diff options
Diffstat (limited to 'arch/arm64/include/asm/memory.h')
| -rw-r--r-- | arch/arm64/include/asm/memory.h | 46 |
1 files changed, 31 insertions, 15 deletions
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index d82305ab420f..717829df294e 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -30,8 +30,8 @@ * keep a constant PAGE_OFFSET and "fallback" to using the higher end * of the VMEMMAP where 52-bit support is not available in hardware. */ -#define VMEMMAP_SHIFT (PAGE_SHIFT - STRUCT_PAGE_MAX_SHIFT) -#define VMEMMAP_SIZE ((_PAGE_END(VA_BITS_MIN) - PAGE_OFFSET) >> VMEMMAP_SHIFT) +#define VMEMMAP_RANGE (_PAGE_END(VA_BITS_MIN) - PAGE_OFFSET) +#define VMEMMAP_SIZE ((VMEMMAP_RANGE >> PAGE_SHIFT) * sizeof(struct page)) /* * PAGE_OFFSET - the virtual address of the start of the linear map, at the @@ -47,14 +47,18 @@ #define MODULES_END (MODULES_VADDR + MODULES_VSIZE) #define MODULES_VADDR (_PAGE_END(VA_BITS_MIN)) #define MODULES_VSIZE (SZ_2G) -#define VMEMMAP_START (-(UL(1) << (VA_BITS - VMEMMAP_SHIFT))) -#define VMEMMAP_END (VMEMMAP_START + VMEMMAP_SIZE) -#define PCI_IO_END (VMEMMAP_START - SZ_8M) -#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) -#define FIXADDR_TOP (VMEMMAP_START - SZ_32M) +#define VMEMMAP_START (VMEMMAP_END - VMEMMAP_SIZE) +#define VMEMMAP_END (-UL(SZ_1G)) +#define PCI_IO_START (VMEMMAP_END + SZ_8M) +#define PCI_IO_END (PCI_IO_START + PCI_IO_SIZE) +#define FIXADDR_TOP (-UL(SZ_8M)) #if VA_BITS > 48 +#ifdef CONFIG_ARM64_16K_PAGES +#define VA_BITS_MIN (47) +#else #define VA_BITS_MIN (48) +#endif #else #define VA_BITS_MIN (VA_BITS) #endif @@ -106,6 +110,8 @@ #define PAGE_END (_PAGE_END(VA_BITS_MIN)) #endif /* CONFIG_KASAN */ +#define DIRECT_MAP_PHYSMEM_END __pa(PAGE_END - 1) + #define MIN_THREAD_SHIFT (14 + KASAN_THREAD_SHIFT) /* @@ -139,13 +145,16 @@ #define OVERFLOW_STACK_SIZE SZ_4K +#define NVHE_STACK_SHIFT PAGE_SHIFT +#define NVHE_STACK_SIZE (UL(1) << NVHE_STACK_SHIFT) + /* * With the minimum frame size of [x29, x30], exactly half the combined * sizes of the hyp and overflow stacks is the maximum size needed to * save the unwinded stacktrace; plus an additional entry to delimit the * end. */ -#define NVHE_STACKTRACE_SIZE ((OVERFLOW_STACK_SIZE + PAGE_SIZE) / 2 + sizeof(long)) +#define NVHE_STACKTRACE_SIZE ((OVERFLOW_STACK_SIZE + NVHE_STACK_SIZE) / 2 + sizeof(long)) /* * Alignment of kernel segments (e.g. .text, .data). @@ -173,6 +182,7 @@ * Memory types for Stage-2 translation */ #define MT_S2_NORMAL 0xf +#define MT_S2_NORMAL_NC 0x5 #define MT_S2_DEVICE_nGnRE 0x1 /* @@ -180,6 +190,7 @@ * Stage-2 enforces Normal-WB and Device-nGnRE */ #define MT_S2_FWB_NORMAL 6 +#define MT_S2_FWB_NORMAL_NC 5 #define MT_S2_FWB_DEVICE_nGnRE 1 #ifdef CONFIG_ARM64_4K_PAGES @@ -209,9 +220,20 @@ #include <asm/boot.h> #include <asm/bug.h> #include <asm/sections.h> +#include <asm/sysreg.h> + +static inline u64 __pure read_tcr(void) +{ + u64 tcr; + + // read_sysreg() uses asm volatile, so avoid it here + asm("mrs %0, tcr_el1" : "=r"(tcr)); + return tcr; +} #if VA_BITS > 48 -extern u64 vabits_actual; +// For reasons of #include hell, we can't use TCR_T1SZ_OFFSET/TCR_T1SZ_MASK here +#define vabits_actual (64 - ((read_tcr() >> 16) & 63)) #else #define vabits_actual ((u64)VA_BITS) #endif @@ -335,12 +357,6 @@ extern phys_addr_t __phys_addr_symbol(unsigned long x); #define __phys_to_kimg(x) ((unsigned long)((x) + kimage_voffset)) /* - * Convert a page to/from a physical address - */ -#define page_to_phys(page) (__pfn_to_phys(page_to_pfn(page))) -#define phys_to_page(phys) (pfn_to_page(__phys_to_pfn(phys))) - -/* * Note: Drivers should NOT use these. They are the wrong * translation for translating DMA addresses. Use the driver * DMA support - see dma-mapping.h. |