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-rw-r--r--arch/sparc/Kconfig36
-rw-r--r--arch/sparc/include/asm/mmu_64.h16
-rw-r--r--arch/sparc/include/asm/page_64.h12
-rw-r--r--arch/sparc/include/asm/pgtable_64.h40
-rw-r--r--arch/sparc/mm/init_64.c9
-rw-r--r--arch/sparc/mm/tsb.c17
6 files changed, 9 insertions, 121 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index e184075877d..91c780c973b 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -230,25 +230,6 @@ config EARLYFB
help
Say Y here to enable a faster early framebuffer boot console.
-choice
- prompt "Kernel page size" if SPARC64
- default SPARC64_PAGE_SIZE_8KB
-
-config SPARC64_PAGE_SIZE_8KB
- bool "8KB"
- help
- This lets you select the page size of the kernel.
-
- 8KB and 64KB work quite well, since SPARC ELF sections
- provide for up to 64KB alignment.
-
- If you don't know what to do, choose 8KB.
-
-config SPARC64_PAGE_SIZE_64KB
- bool "64KB"
-
-endchoice
-
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"
depends on SPARC64 && PROC_FS
@@ -320,23 +301,6 @@ config GENERIC_LOCKBREAK
default y
depends on SPARC64 && SMP && PREEMPT
-choice
- prompt "SPARC64 Huge TLB Page Size"
- depends on SPARC64 && HUGETLB_PAGE
- default HUGETLB_PAGE_SIZE_4MB
-
-config HUGETLB_PAGE_SIZE_4MB
- bool "4MB"
-
-config HUGETLB_PAGE_SIZE_512K
- bool "512K"
-
-config HUGETLB_PAGE_SIZE_64K
- depends on !SPARC64_PAGE_SIZE_64KB
- bool "64K"
-
-endchoice
-
config NUMA
bool "NUMA support"
depends on SPARC64 && SMP
diff --git a/arch/sparc/include/asm/mmu_64.h b/arch/sparc/include/asm/mmu_64.h
index 9067dc50053..5fb97e19d81 100644
--- a/arch/sparc/include/asm/mmu_64.h
+++ b/arch/sparc/include/asm/mmu_64.h
@@ -30,22 +30,8 @@
#define CTX_PGSZ_MASK ((CTX_PGSZ_BITS << CTX_PGSZ0_SHIFT) | \
(CTX_PGSZ_BITS << CTX_PGSZ1_SHIFT))
-#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
#define CTX_PGSZ_BASE CTX_PGSZ_8KB
-#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB)
-#define CTX_PGSZ_BASE CTX_PGSZ_64KB
-#else
-#error No page size specified in kernel configuration
-#endif
-
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
-#define CTX_PGSZ_HUGE CTX_PGSZ_4MB
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
-#define CTX_PGSZ_HUGE CTX_PGSZ_512KB
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define CTX_PGSZ_HUGE CTX_PGSZ_64KB
-#endif
-
+#define CTX_PGSZ_HUGE CTX_PGSZ_4MB
#define CTX_PGSZ_KERN CTX_PGSZ_4MB
/* Thus, when running on UltraSPARC-III+ and later, we use the following
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index f0d09b40103..b2df9b8b2d4 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -3,13 +3,7 @@
#include <linux/const.h>
-#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
#define PAGE_SHIFT 13
-#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB)
-#define PAGE_SHIFT 16
-#else
-#error No page size specified in kernel configuration
-#endif
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
@@ -21,13 +15,7 @@
#define DCACHE_ALIASING_POSSIBLE
#endif
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
#define HPAGE_SHIFT 22
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
-#define HPAGE_SHIFT 19
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define HPAGE_SHIFT 16
-#endif
#ifdef CONFIG_HUGETLB_PAGE
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 61210db139f..387d484c62f 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -160,26 +160,11 @@
#define _PAGE_SZ8K_4V _AC(0x0000000000000000,UL) /* 8K Page */
#define _PAGE_SZALL_4V _AC(0x0000000000000007,UL) /* All pgsz bits */
-#if PAGE_SHIFT == 13
#define _PAGE_SZBITS_4U _PAGE_SZ8K_4U
#define _PAGE_SZBITS_4V _PAGE_SZ8K_4V
-#elif PAGE_SHIFT == 16
-#define _PAGE_SZBITS_4U _PAGE_SZ64K_4U
-#define _PAGE_SZBITS_4V _PAGE_SZ64K_4V
-#else
-#error Wrong PAGE_SHIFT specified
-#endif
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
#define _PAGE_SZHUGE_4U _PAGE_SZ4MB_4U
#define _PAGE_SZHUGE_4V _PAGE_SZ4MB_4V
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
-#define _PAGE_SZHUGE_4U _PAGE_SZ512K_4U
-#define _PAGE_SZHUGE_4V _PAGE_SZ512K_4V
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define _PAGE_SZHUGE_4U _PAGE_SZ64K_4U
-#define _PAGE_SZHUGE_4V _PAGE_SZ64K_4V
-#endif
/* These are actually filled in at boot time by sun4{u,v}_pgprot_init() */
#define __P000 __pgprot(0)
@@ -218,7 +203,6 @@ extern unsigned long _PAGE_CACHE;
extern unsigned long pg_iobits;
extern unsigned long _PAGE_ALL_SZ_BITS;
-extern unsigned long _PAGE_SZBITS;
extern struct page *mem_map_zero;
#define ZERO_PAGE(vaddr) (mem_map_zero)
@@ -231,22 +215,9 @@ extern struct page *mem_map_zero;
static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
{
unsigned long paddr = pfn << PAGE_SHIFT;
- unsigned long sz_bits;
-
- sz_bits = 0UL;
- if (_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL) {
- __asm__ __volatile__(
- "\n661: sethi %%uhi(%1), %0\n"
- " sllx %0, 32, %0\n"
- " .section .sun4v_2insn_patch, \"ax\"\n"
- " .word 661b\n"
- " mov %2, %0\n"
- " nop\n"
- " .previous\n"
- : "=r" (sz_bits)
- : "i" (_PAGE_SZBITS_4U), "i" (_PAGE_SZBITS_4V));
- }
- return __pte(paddr | sz_bits | pgprot_val(prot));
+
+ BUILD_BUG_ON(_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL);
+ return __pte(paddr | pgprot_val(prot));
}
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
@@ -286,6 +257,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t prot)
* Note: We encode this into 3 sun4v 2-insn patch sequences.
*/
+ BUILD_BUG_ON(_PAGE_SZBITS_4U != 0UL || _PAGE_SZBITS_4V != 0UL);
__asm__ __volatile__(
"\n661: sethi %%uhi(%2), %1\n"
" sethi %%hi(%2), %0\n"
@@ -307,10 +279,10 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t prot)
: "=r" (mask), "=r" (tmp)
: "i" (_PAGE_PADDR_4U | _PAGE_MODIFIED_4U | _PAGE_ACCESSED_4U |
_PAGE_CP_4U | _PAGE_CV_4U | _PAGE_E_4U | _PAGE_PRESENT_4U |
- _PAGE_SZBITS_4U | _PAGE_SPECIAL),
+ _PAGE_SPECIAL),
"i" (_PAGE_PADDR_4V | _PAGE_MODIFIED_4V | _PAGE_ACCESSED_4V |
_PAGE_CP_4V | _PAGE_CV_4V | _PAGE_E_4V | _PAGE_PRESENT_4V |
- _PAGE_SZBITS_4V | _PAGE_SPECIAL));
+ _PAGE_SPECIAL));
return __pte((pte_val(pte) & mask) | (pgprot_val(prot) & ~mask));
}
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 7a9b788c6ce..809eecf6c79 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -276,7 +276,6 @@ static inline void tsb_insert(struct tsb *ent, unsigned long tag, unsigned long
}
unsigned long _PAGE_ALL_SZ_BITS __read_mostly;
-unsigned long _PAGE_SZBITS __read_mostly;
static void flush_dcache(unsigned long pfn)
{
@@ -2275,8 +2274,7 @@ static void __init sun4u_pgprot_init(void)
__ACCESS_BITS_4U | _PAGE_E_4U);
#ifdef CONFIG_DEBUG_PAGEALLOC
- kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4U) ^
- 0xfffff80000000000UL;
+ kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL;
#else
kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4U) ^
0xfffff80000000000UL;
@@ -2287,7 +2285,6 @@ static void __init sun4u_pgprot_init(void)
for (i = 1; i < 4; i++)
kern_linear_pte_xor[i] = kern_linear_pte_xor[0];
- _PAGE_SZBITS = _PAGE_SZBITS_4U;
_PAGE_ALL_SZ_BITS = (_PAGE_SZ4MB_4U | _PAGE_SZ512K_4U |
_PAGE_SZ64K_4U | _PAGE_SZ8K_4U |
_PAGE_SZ32MB_4U | _PAGE_SZ256MB_4U);
@@ -2324,8 +2321,7 @@ static void __init sun4v_pgprot_init(void)
_PAGE_CACHE = _PAGE_CACHE_4V;
#ifdef CONFIG_DEBUG_PAGEALLOC
- kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZBITS_4V) ^
- 0xfffff80000000000UL;
+ kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL;
#else
kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4V) ^
0xfffff80000000000UL;
@@ -2339,7 +2335,6 @@ static void __init sun4v_pgprot_init(void)
pg_iobits = (_PAGE_VALID | _PAGE_PRESENT_4V | __DIRTY_BITS_4V |
__ACCESS_BITS_4V | _PAGE_E_4V);
- _PAGE_SZBITS = _PAGE_SZBITS_4V;
_PAGE_ALL_SZ_BITS = (_PAGE_SZ16GB_4V | _PAGE_SZ2GB_4V |
_PAGE_SZ256MB_4V | _PAGE_SZ32MB_4V |
_PAGE_SZ4MB_4V | _PAGE_SZ512K_4V |
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index c52add79b83..70e50ea2a5b 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -90,29 +90,12 @@ void flush_tsb_user(struct tlb_batch *tb)
spin_unlock_irqrestore(&mm->context.lock, flags);
}
-#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB)
#define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_8K
#define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_8K
-#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB)
-#define HV_PGSZ_IDX_BASE HV_PGSZ_IDX_64K
-#define HV_PGSZ_MASK_BASE HV_PGSZ_MASK_64K
-#else
-#error Broken base page size setting...
-#endif
#ifdef CONFIG_HUGETLB_PAGE
-#if defined(CONFIG_HUGETLB_PAGE_SIZE_64K)
-#define HV_PGSZ_IDX_HUGE HV_PGSZ_IDX_64K
-#define HV_PGSZ_MASK_HUGE HV_PGSZ_MASK_64K
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K)
-#define HV_PGSZ_IDX_HUGE HV_PGSZ_IDX_512K
-#define HV_PGSZ_MASK_HUGE HV_PGSZ_MASK_512K
-#elif defined(CONFIG_HUGETLB_PAGE_SIZE_4MB)
#define HV_PGSZ_IDX_HUGE HV_PGSZ_IDX_4MB
#define HV_PGSZ_MASK_HUGE HV_PGSZ_MASK_4MB
-#else
-#error Broken huge page size setting...
-#endif
#endif
static void setup_tsb_params(struct mm_struct *mm, unsigned long tsb_idx, unsigned long tsb_bytes)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-26 18:34:34 +0000