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-rw-r--r--arch/sparc/include/asm/fixmap.h110
-rw-r--r--arch/sparc/include/asm/highmem.h3
-rw-r--r--arch/sparc/include/asm/leon.h1
-rw-r--r--arch/sparc/include/asm/mmu_context_32.h8
-rw-r--r--arch/sparc/include/asm/page_32.h3
-rw-r--r--arch/sparc/include/asm/pgalloc_32.h29
-rw-r--r--arch/sparc/include/asm/pgtable_32.h44
-rw-r--r--arch/sparc/include/asm/vaddrs.h22
-rw-r--r--arch/sparc/kernel/head_32.S2
-rw-r--r--arch/sparc/kernel/leon_kernel.c16
-rw-r--r--arch/sparc/kernel/process_32.c4
-rw-r--r--arch/sparc/kernel/setup_32.c1
-rw-r--r--arch/sparc/kernel/sys_sparc_64.c17
-rw-r--r--arch/sparc/lib/NG2memcpy.S72
-rw-r--r--arch/sparc/lib/U1memcpy.S4
-rw-r--r--arch/sparc/lib/copy_page.S56
-rw-r--r--arch/sparc/mm/fault_32.c18
-rw-r--r--arch/sparc/mm/highmem.c42
-rw-r--r--arch/sparc/mm/init_32.c58
-rw-r--r--arch/sparc/mm/srmmu.c332
-rw-r--r--arch/sparc/prom/init_32.c7
-rw-r--r--arch/sparc/prom/init_64.c4
22 files changed, 331 insertions, 522 deletions
diff --git a/arch/sparc/include/asm/fixmap.h b/arch/sparc/include/asm/fixmap.h
deleted file mode 100644
index f18fc0755ad..00000000000
--- a/arch/sparc/include/asm/fixmap.h
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * fixmap.h: compile-time virtual memory allocation
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 1998 Ingo Molnar
- *
- * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999
- */
-
-#ifndef _ASM_FIXMAP_H
-#define _ASM_FIXMAP_H
-
-#include <linux/kernel.h>
-#include <asm/page.h>
-#ifdef CONFIG_HIGHMEM
-#include <linux/threads.h>
-#include <asm/kmap_types.h>
-#endif
-
-/*
- * Here we define all the compile-time 'special' virtual
- * addresses. The point is to have a constant address at
- * compile time, but to set the physical address only
- * in the boot process. We allocate these special addresses
- * from the top of unused virtual memory (0xfd000000 - 1 page) backwards.
- * Also this lets us do fail-safe vmalloc(), we
- * can guarantee that these special addresses and
- * vmalloc()-ed addresses never overlap.
- *
- * these 'compile-time allocated' memory buffers are
- * fixed-size 4k pages. (or larger if used with an increment
- * highger than 1) use fixmap_set(idx,phys) to associate
- * physical memory with fixmap indices.
- *
- * TLB entries of such buffers will not be flushed across
- * task switches.
- */
-
-/*
- * on UP currently we will have no trace of the fixmap mechanism,
- * no page table allocations, etc. This might change in the
- * future, say framebuffers for the console driver(s) could be
- * fix-mapped?
- */
-enum fixed_addresses {
- FIX_HOLE,
-#ifdef CONFIG_HIGHMEM
- FIX_KMAP_BEGIN,
- FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
-#endif
- __end_of_fixed_addresses
-};
-
-extern void __set_fixmap (enum fixed_addresses idx,
- unsigned long phys, pgprot_t flags);
-
-#define set_fixmap(idx, phys) \
- __set_fixmap(idx, phys, PAGE_KERNEL)
-/*
- * Some hardware wants to get fixmapped without caching.
- */
-#define set_fixmap_nocache(idx, phys) \
- __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
-/*
- * used by vmalloc.c.
- *
- * Leave one empty page between IO pages at 0xfd000000 and
- * the start of the fixmap.
- */
-#define FIXADDR_TOP (0xfcfff000UL)
-#define FIXADDR_SIZE ((__end_of_fixed_addresses) << PAGE_SHIFT)
-#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
-
-#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-extern void __this_fixmap_does_not_exist(void);
-
-/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without tranlation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
- */
-static inline unsigned long fix_to_virt(const unsigned int idx)
-{
- /*
- * this branch gets completely eliminated after inlining,
- * except when someone tries to use fixaddr indices in an
- * illegal way. (such as mixing up address types or using
- * out-of-range indices).
- *
- * If it doesn't get removed, the linker will complain
- * loudly with a reasonably clear error message..
- */
- if (idx >= __end_of_fixed_addresses)
- __this_fixmap_does_not_exist();
-
- return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
- BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
- return __virt_to_fix(vaddr);
-}
-
-#endif
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index 3b6e00dd96e..4f9e15c757e 100644
--- a/arch/sparc/include/asm/highmem.h
+++ b/arch/sparc/include/asm/highmem.h
@@ -21,7 +21,6 @@
#ifdef __KERNEL__
#include <linux/interrupt.h>
-#include <asm/fixmap.h>
#include <asm/vaddrs.h>
#include <asm/kmap_types.h>
#include <asm/pgtable.h>
@@ -29,7 +28,6 @@
/* declarations for highmem.c */
extern unsigned long highstart_pfn, highend_pfn;
-extern pte_t *kmap_pte;
extern pgprot_t kmap_prot;
extern pte_t *pkmap_page_table;
@@ -72,7 +70,6 @@ static inline void kunmap(struct page *page)
extern void *kmap_atomic(struct page *page);
extern void __kunmap_atomic(void *kvaddr);
-extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()
diff --git a/arch/sparc/include/asm/leon.h b/arch/sparc/include/asm/leon.h
index 3375c629389..15a716934e4 100644
--- a/arch/sparc/include/asm/leon.h
+++ b/arch/sparc/include/asm/leon.h
@@ -82,7 +82,6 @@ static inline unsigned long leon_load_reg(unsigned long paddr)
#define LEON_BYPASS_LOAD_PA(x) leon_load_reg((unsigned long)(x))
#define LEON_BYPASS_STORE_PA(x, v) leon_store_reg((unsigned long)(x), (unsigned long)(v))
-extern void leon_init(void);
extern void leon_switch_mm(void);
extern void leon_init_IRQ(void);
diff --git a/arch/sparc/include/asm/mmu_context_32.h b/arch/sparc/include/asm/mmu_context_32.h
index 01456c90072..2df2a9be8f6 100644
--- a/arch/sparc/include/asm/mmu_context_32.h
+++ b/arch/sparc/include/asm/mmu_context_32.h
@@ -9,14 +9,12 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
}
-/*
- * Initialize a new mmu context. This is invoked when a new
+/* Initialize a new mmu context. This is invoked when a new
* address space instance (unique or shared) is instantiated.
*/
-#define init_new_context(tsk, mm) (((mm)->context = NO_CONTEXT), 0)
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
-/*
- * Destroy a dead context. This occurs when mmput drops the
+/* Destroy a dead context. This occurs when mmput drops the
* mm_users count to zero, the mmaps have been released, and
* all the page tables have been flushed. Our job is to destroy
* any remaining processor-specific state.
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index fab78a308eb..f82a1f36b65 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -107,8 +107,7 @@ typedef unsigned long iopgprot_t;
typedef struct page *pgtable_t;
-extern unsigned long sparc_unmapped_base;
-#define TASK_UNMAPPED_BASE sparc_unmapped_base
+#define TASK_UNMAPPED_BASE 0x50000000
#else /* !(__ASSEMBLY__) */
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index e5b169b46d2..9b1c36de0f1 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -11,28 +11,15 @@
struct page;
-extern struct pgtable_cache_struct {
- unsigned long *pgd_cache;
- unsigned long *pte_cache;
- unsigned long pgtable_cache_sz;
- unsigned long pgd_cache_sz;
-} pgt_quicklists;
-
-unsigned long srmmu_get_nocache(int size, int align);
-void srmmu_free_nocache(unsigned long vaddr, int size);
-
-#define pgd_quicklist (pgt_quicklists.pgd_cache)
-#define pmd_quicklist ((unsigned long *)0)
-#define pte_quicklist (pgt_quicklists.pte_cache)
-#define pgtable_cache_size (pgt_quicklists.pgtable_cache_sz)
-#define pgd_cache_size (pgt_quicklists.pgd_cache_sz)
+void *srmmu_get_nocache(int size, int align);
+void srmmu_free_nocache(void *addr, int size);
#define check_pgt_cache() do { } while (0)
pgd_t *get_pgd_fast(void);
static inline void free_pgd_fast(pgd_t *pgd)
{
- srmmu_free_nocache((unsigned long)pgd, SRMMU_PGD_TABLE_SIZE);
+ srmmu_free_nocache(pgd, SRMMU_PGD_TABLE_SIZE);
}
#define pgd_free(mm, pgd) free_pgd_fast(pgd)
@@ -50,13 +37,13 @@ static inline void pgd_set(pgd_t * pgdp, pmd_t * pmdp)
static inline pmd_t *pmd_alloc_one(struct mm_struct *mm,
unsigned long address)
{
- return (pmd_t *)srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
- SRMMU_PMD_TABLE_SIZE);
+ return srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
+ SRMMU_PMD_TABLE_SIZE);
}
static inline void free_pmd_fast(pmd_t * pmd)
{
- srmmu_free_nocache((unsigned long)pmd, SRMMU_PMD_TABLE_SIZE);
+ srmmu_free_nocache(pmd, SRMMU_PMD_TABLE_SIZE);
}
#define pmd_free(mm, pmd) free_pmd_fast(pmd)
@@ -73,13 +60,13 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address);
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
unsigned long address)
{
- return (pte_t *)srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
+ return srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
}
static inline void free_pte_fast(pte_t *pte)
{
- srmmu_free_nocache((unsigned long)pte, PTE_SIZE);
+ srmmu_free_nocache(pte, PTE_SIZE);
}
#define pte_free_kernel(mm, pte) free_pte_fast(pte)
diff --git a/arch/sparc/include/asm/pgtable_32.h b/arch/sparc/include/asm/pgtable_32.h
index cbbbed5cb3a..6fc13483f70 100644
--- a/arch/sparc/include/asm/pgtable_32.h
+++ b/arch/sparc/include/asm/pgtable_32.h
@@ -52,8 +52,9 @@ extern unsigned long calc_highpages(void);
#define PAGE_READONLY SRMMU_PAGE_RDONLY
#define PAGE_KERNEL SRMMU_PAGE_KERNEL
-/* Top-level page directory */
-extern pgd_t swapper_pg_dir[1024];
+/* Top-level page directory - dummy used by init-mm.
+ * srmmu.c will assign the real one (which is dynamically sized) */
+#define swapper_pg_dir NULL
extern void paging_init(void);
@@ -78,8 +79,6 @@ extern unsigned long ptr_in_current_pgd;
#define __S110 PAGE_SHARED
#define __S111 PAGE_SHARED
-extern int num_contexts;
-
/* First physical page can be anywhere, the following is needed so that
* va-->pa and vice versa conversions work properly without performance
* hit for all __pa()/__va() operations.
@@ -88,18 +87,11 @@ extern unsigned long phys_base;
extern unsigned long pfn_base;
/*
- * BAD_PAGETABLE is used when we need a bogus page-table, while
- * BAD_PAGE is used for a bogus page.
- *
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
*/
-extern pte_t * __bad_pagetable(void);
-extern pte_t __bad_page(void);
extern unsigned long empty_zero_page;
-#define BAD_PAGETABLE __bad_pagetable()
-#define BAD_PAGE __bad_page()
#define ZERO_PAGE(vaddr) (virt_to_page(&empty_zero_page))
/*
@@ -398,36 +390,6 @@ static inline pte_t pgoff_to_pte(unsigned long pgoff)
*/
#define PTE_FILE_MAX_BITS 24
-/*
- */
-struct ctx_list {
- struct ctx_list *next;
- struct ctx_list *prev;
- unsigned int ctx_number;
- struct mm_struct *ctx_mm;
-};
-
-extern struct ctx_list *ctx_list_pool; /* Dynamically allocated */
-extern struct ctx_list ctx_free; /* Head of free list */
-extern struct ctx_list ctx_used; /* Head of used contexts list */
-
-#define NO_CONTEXT -1
-
-static inline void remove_from_ctx_list(struct ctx_list *entry)
-{
- entry->next->prev = entry->prev;
- entry->prev->next = entry->next;
-}
-
-static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry)
-{
- entry->next = head;
- (entry->prev = head->prev)->next = entry;
- head->prev = entry;
-}
-#define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry)
-#define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry)
-
static inline unsigned long
__get_phys (unsigned long addr)
{
diff --git a/arch/sparc/include/asm/vaddrs.h b/arch/sparc/include/asm/vaddrs.h
index da6535d88a7..c3dbcf90203 100644
--- a/arch/sparc/include/asm/vaddrs.h
+++ b/arch/sparc/include/asm/vaddrs.h
@@ -30,6 +30,28 @@
*/
#define SRMMU_NOCACHE_ALCRATIO 64 /* 256 pages per 64MB of system RAM */
+#ifndef __ASSEMBLY__
+#include <asm/kmap_types.h>
+
+enum fixed_addresses {
+ FIX_HOLE,
+#ifdef CONFIG_HIGHMEM
+ FIX_KMAP_BEGIN,
+ FIX_KMAP_END = (KM_TYPE_NR * NR_CPUS),
+#endif
+ __end_of_fixed_addresses
+};
+#endif
+
+/* Leave one empty page between IO pages at 0xfd000000 and
+ * the top of the fixmap.
+ */
+#define FIXADDR_TOP (0xfcfff000UL)
+#define FIXADDR_SIZE ((FIX_KMAP_END + 1) << PAGE_SHIFT)
+#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
+
+#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
+
#define SUN4M_IOBASE_VADDR 0xfd000000 /* Base for mapping pages */
#define IOBASE_VADDR 0xfe000000
#define IOBASE_END 0xfe600000
diff --git a/arch/sparc/kernel/head_32.S b/arch/sparc/kernel/head_32.S
index afeb1d77030..3d92c0a8f6c 100644
--- a/arch/sparc/kernel/head_32.S
+++ b/arch/sparc/kernel/head_32.S
@@ -58,8 +58,6 @@ sun4e_notsup:
/* This was the only reasonable way I could think of to properly align
* these page-table data structures.
*/
- .globl swapper_pg_dir
-swapper_pg_dir: .skip PAGE_SIZE
.globl empty_zero_page
empty_zero_page: .skip PAGE_SIZE
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index e34e2c40c06..f8b6eee40bd 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/arch/sparc/kernel/leon_kernel.c
@@ -486,17 +486,6 @@ void __init leon_trans_init(struct device_node *dp)
}
}
-void __initdata (*prom_amba_init)(struct device_node *dp, struct device_node ***nextp) = 0;
-
-void __init leon_node_init(struct device_node *dp, struct device_node ***nextp)
-{
- if (prom_amba_init &&
- strcmp(dp->type, "ambapp") == 0 &&
- strcmp(dp->name, "ambapp0") == 0) {
- prom_amba_init(dp, nextp);
- }
-}
-
#ifdef CONFIG_SMP
void leon_clear_profile_irq(int cpu)
{
@@ -522,8 +511,3 @@ void __init leon_init_IRQ(void)
sparc_config.clear_clock_irq = leon_clear_clock_irq;
sparc_config.load_profile_irq = leon_load_profile_irq;
}
-
-void __init leon_init(void)
-{
- of_pdt_build_more = &leon_node_init;
-}
diff --git a/arch/sparc/kernel/process_32.c b/arch/sparc/kernel/process_32.c
index cb36e82dcd5..14006d8aca2 100644
--- a/arch/sparc/kernel/process_32.c
+++ b/arch/sparc/kernel/process_32.c
@@ -333,9 +333,6 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
put_psr(get_psr() | PSR_EF);
fpsave(&p->thread.float_regs[0], &p->thread.fsr,
&p->thread.fpqueue[0], &p->thread.fpqdepth);
-#ifdef CONFIG_SMP
- clear_thread_flag(TIF_USEDFPU);
-#endif
}
/*
@@ -413,6 +410,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
#ifdef CONFIG_SMP
/* FPU must be disabled on SMP. */
childregs->psr &= ~PSR_EF;
+ clear_tsk_thread_flag(p, TIF_USEDFPU);
#endif
/* Set the return value for the child. */
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index efe3e64bba3..38bf80a22f0 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -371,7 +371,6 @@ void __init setup_arch(char **cmdline_p)
(*(linux_dbvec->teach_debugger))();
}
- init_mm.context = (unsigned long) NO_CONTEXT;
init_task.thread.kregs = &fake_swapper_regs;
/* Run-time patch instructions to match the cpu model */
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 275f74fd6f6..c38e5aaae56 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -66,23 +66,6 @@ static inline int invalid_64bit_range(unsigned long addr, unsigned long len)
return 0;
}
-/* Does start,end straddle the VA-space hole? */
-static inline int straddles_64bit_va_hole(unsigned long start, unsigned long end)
-{
- unsigned long va_exclude_start, va_exclude_end;
-
- va_exclude_start = VA_EXCLUDE_START;
- va_exclude_end = VA_EXCLUDE_END;
-
- if (likely(start < va_exclude_start && end < va_exclude_start))
- return 0;
-
- if (likely(start >= va_exclude_end && end >= va_exclude_end))
- return 0;
-
- return 1;
-}
-
/* These functions differ from the default implementations in
* mm/mmap.c in two ways:
*
diff --git a/arch/sparc/lib/NG2memcpy.S b/arch/sparc/lib/NG2memcpy.S
index 0aed75653b5..03eadf66b0d 100644
--- a/arch/sparc/lib/NG2memcpy.S
+++ b/arch/sparc/lib/NG2memcpy.S
@@ -90,49 +90,49 @@
faligndata %x7, %x8, %f14;
#define FREG_MOVE_1(x0) \
- fmovd %x0, %f0;
+ fsrc2 %x0, %f0;
#define FREG_MOVE_2(x0, x1) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2;
#define FREG_MOVE_3(x0, x1, x2) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2; \
- fmovd %x2, %f4;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2; \
+ fsrc2 %x2, %f4;
#define FREG_MOVE_4(x0, x1, x2, x3) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2; \
- fmovd %x2, %f4; \
- fmovd %x3, %f6;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2; \
+ fsrc2 %x2, %f4; \
+ fsrc2 %x3, %f6;
#define FREG_MOVE_5(x0, x1, x2, x3, x4) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2; \
- fmovd %x2, %f4; \
- fmovd %x3, %f6; \
- fmovd %x4, %f8;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2; \
+ fsrc2 %x2, %f4; \
+ fsrc2 %x3, %f6; \
+ fsrc2 %x4, %f8;
#define FREG_MOVE_6(x0, x1, x2, x3, x4, x5) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2; \
- fmovd %x2, %f4; \
- fmovd %x3, %f6; \
- fmovd %x4, %f8; \
- fmovd %x5, %f10;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2; \
+ fsrc2 %x2, %f4; \
+ fsrc2 %x3, %f6; \
+ fsrc2 %x4, %f8; \
+ fsrc2 %x5, %f10;
#define FREG_MOVE_7(x0, x1, x2, x3, x4, x5, x6) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2; \
- fmovd %x2, %f4; \
- fmovd %x3, %f6; \
- fmovd %x4, %f8; \
- fmovd %x5, %f10; \
- fmovd %x6, %f12;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2; \
+ fsrc2 %x2, %f4; \
+ fsrc2 %x3, %f6; \
+ fsrc2 %x4, %f8; \
+ fsrc2 %x5, %f10; \
+ fsrc2 %x6, %f12;
#define FREG_MOVE_8(x0, x1, x2, x3, x4, x5, x6, x7) \
- fmovd %x0, %f0; \
- fmovd %x1, %f2; \
- fmovd %x2, %f4; \
- fmovd %x3, %f6; \
- fmovd %x4, %f8; \
- fmovd %x5, %f10; \
- fmovd %x6, %f12; \
- fmovd %x7, %f14;
+ fsrc2 %x0, %f0; \
+ fsrc2 %x1, %f2; \
+ fsrc2 %x2, %f4; \
+ fsrc2 %x3, %f6; \
+ fsrc2 %x4, %f8; \
+ fsrc2 %x5, %f10; \
+ fsrc2 %x6, %f12; \
+ fsrc2 %x7, %f14;
#define FREG_LOAD_1(base, x0) \
EX_LD(LOAD(ldd, base + 0x00, %x0))
#define FREG_LOAD_2(base, x0, x1) \
diff --git a/arch/sparc/lib/U1memcpy.S b/arch/sparc/lib/U1memcpy.S
index bafd2fc07ac..b67142b7768 100644
--- a/arch/sparc/lib/U1memcpy.S
+++ b/arch/sparc/lib/U1memcpy.S
@@ -109,7 +109,7 @@
#define UNEVEN_VISCHUNK_LAST(dest, f0, f1, left) \
subcc %left, 8, %left; \
bl,pn %xcc, 95f; \
- fsrc1 %f0, %f1;
+ fsrc2 %f0, %f1;
#define UNEVEN_VISCHUNK(dest, f0, f1, left) \
UNEVEN_VISCHUNK_LAST(dest, f0, f1, left) \
@@ -201,7 +201,7 @@ FUNC_NAME: /* %o0=dst, %o1=src, %o2=len */
andn %o1, (0x40 - 1), %o1
and %g2, 7, %g2
andncc %g3, 0x7, %g3
- fmovd %f0, %f2
+ fsrc2 %f0, %f2
sub %g3, 0x8, %g3
sub %o2, %GLOBAL_SPARE, %o2
diff --git a/arch/sparc/lib/copy_page.S b/arch/sparc/lib/copy_page.S
index b243d3b606b..4d2df328e51 100644
--- a/arch/sparc/lib/copy_page.S
+++ b/arch/sparc/lib/copy_page.S
@@ -34,10 +34,10 @@
#endif
#define TOUCH(reg0, reg1, reg2, reg3, reg4, reg5, reg6, reg7) \
- fmovd %reg0, %f48; fmovd %reg1, %f50; \
- fmovd %reg2, %f52; fmovd %reg3, %f54; \
- fmovd %reg4, %f56; fmovd %reg5, %f58; \
- fmovd %reg6, %f60; fmovd %reg7, %f62;
+ fsrc2 %reg0, %f48; fsrc2 %reg1, %f50; \
+ fsrc2 %reg2, %f52; fsrc2 %reg3, %f54; \
+ fsrc2 %reg4, %f56; fsrc2 %reg5, %f58; \
+ fsrc2 %reg6, %f60; fsrc2 %reg7, %f62;
.text
@@ -104,60 +104,60 @@ cheetah_copy_page_insn:
prefetch [%o1 + 0x140], #one_read
ldd [%o1 + 0x010], %f4
prefetch [%o1 + 0x180], #one_read
- fmovd %f0, %f16
+ fsrc2 %f0, %f16
ldd [%o1 + 0x018], %f6
- fmovd %f2, %f18
+ fsrc2 %f2, %f18
ldd [%o1 + 0x020], %f8
- fmovd %f4, %f20
+ fsrc2 %f4, %f20
ldd [%o1 + 0x028], %f10
- fmovd %f6, %f22
+ fsrc2 %f6, %f22
ldd [%o1 + 0x030], %f12
- fmovd %f8, %f24
+ fsrc2 %f8, %f24
ldd [%o1 + 0x038], %f14
- fmovd %f10, %f26
+ fsrc2 %f10, %f26
ldd [%o1 + 0x040], %f0
1: ldd [%o1 + 0x048], %f2
- fmovd %f12, %f28
+ fsrc2 %f12, %f28
ldd [%o1 + 0x050], %f4
- fmovd %f14, %f30
+ fsrc2 %f14, %f30
stda %f16, [%o0] ASI_BLK_P
ldd [%o1 + 0x058], %f6
- fmovd %f0, %f16
+ fsrc2 %f0, %f16
ldd [%o1 + 0x060], %f8
- fmovd %f2, %f18
+ fsrc2 %f2, %f18
ldd [%o1 + 0x068], %f10
- fmovd %f4, %f20
+ fsrc2 %f4, %f20
ldd [%o1 + 0x070], %f12
- fmovd %f6, %f22
+ fsrc2 %f6, %f22
ldd [%o1 + 0x078], %f14
- fmovd %f8, %f24
+ fsrc2 %f8, %f24
ldd [%o1 + 0x080], %f0
prefetch [%o1 + 0x180], #one_read
- fmovd %f10, %f26
+ fsrc2 %f10, %f26
subcc %o2, 1, %o2
add %o0, 0x40, %o0
bne,pt %xcc, 1b
add %o1, 0x40, %o1
ldd [%o1 + 0x048], %f2
- fmovd %f12, %f28
+ fsrc2 %f12, %f28
ldd [%o1 + 0x050], %f4
- fmovd %f14, %f30
+ fsrc2 %f14, %f30
stda %f16, [%o0] ASI_BLK_P
ldd [%o1 + 0x058], %f6
- fmovd %f0, %f16
+ fsrc2 %f0, %f16
ldd [%o1 + 0x060], %f8
- fmovd %f2, %f18
+ fsrc2 %f2, %f18
ldd [%o1 + 0x068], %f10
- fmovd %f4, %f20
+ fsrc2 %f4, %f20
ldd [%o1 + 0x070], %f12
- fmovd %f6, %f22
+ fsrc2 %f6, %f22
add %o0, 0x40, %o0
ldd [%o1 + 0x078], %f14
- fmovd %f8, %f24
- fmovd %f10, %f26
- fmovd %f12, %f28
- fmovd %f14, %f30
+ fsrc2 %f8, %f24
+ fsrc2 %f10, %f26
+ fsrc2 %f12, %f28
+ fsrc2 %f14, %f30
stda %f16, [%o0] ASI_BLK_P
membar #Sync
VISExitHalf
diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index f46cf6be337..77ac917be15 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -32,24 +32,6 @@
int show_unhandled_signals = 1;
-/* At boot time we determine these two values necessary for setting
- * up the segment maps and page table entries (pte's).
- */
-
-int num_contexts;
-
-/* Return how much physical memory we have. */
-unsigned long probe_memory(void)
-{
- unsigned long total = 0;
- int i;
-
- for (i = 0; sp_banks[i].num_bytes; i++)
- total += sp_banks[i].num_bytes;
-
- return total;
-}
-
static void unhandled_fault(unsigned long, struct task_struct *,
struct pt_regs *) __attribute__ ((noreturn));
diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
index 055c66cf1bf..449f864f0ce 100644
--- a/arch/sparc/mm/highmem.c
+++ b/arch/sparc/mm/highmem.c
@@ -22,13 +22,31 @@
* shared by CPUs, and so precious, and establishing them requires IPI.
* Atomic kmaps are lightweight and we may have NCPUS more of them.
*/
-#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/export.h>
-#include <asm/pgalloc.h>
+#include <linux/mm.h>
+
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
-#include <asm/fixmap.h>
+#include <asm/pgalloc.h>
+#include <asm/vaddrs.h>
+
+pgprot_t kmap_prot;
+
+static pte_t *kmap_pte;
+
+void __init kmap_init(void)
+{
+ unsigned long address;
+ pmd_t *dir;
+
+ address = __fix_to_virt(FIX_KMAP_BEGIN);
+ dir = pmd_offset(pgd_offset_k(address), address);
+
+ /* cache the first kmap pte */
+ kmap_pte = pte_offset_kernel(dir, address);
+ kmap_prot = __pgprot(SRMMU_ET_PTE | SRMMU_PRIV | SRMMU_CACHE);
+}
void *kmap_atomic(struct page *page)
{
@@ -110,21 +128,3 @@ void __kunmap_atomic(void *kvaddr)
pagefault_enable();
}
EXPORT_SYMBOL(__kunmap_atomic);
-
-/* We may be fed a pagetable here by ptep_to_xxx and others. */
-struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long idx, vaddr = (unsigned long)ptr;
- pte_t *pte;
-
- if (vaddr < SRMMU_NOCACHE_VADDR)
- return virt_to_page(ptr);
- if (vaddr < PKMAP_BASE)
- return pfn_to_page(__nocache_pa(vaddr) >> PAGE_SHIFT);
- BUG_ON(vaddr < FIXADDR_START);
- BUG_ON(vaddr > FIXADDR_TOP);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
diff --git a/arch/sparc/mm/init_32.c b/arch/sparc/mm/init_32.c
index ef5c779ec85..dde85ef1c56 100644
--- a/arch/sparc/mm/init_32.c
+++ b/arch/sparc/mm/init_32.c
@@ -45,9 +45,6 @@ unsigned long pfn_base;
EXPORT_SYMBOL(pfn_base);
struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS+1];
-unsigned long sparc_unmapped_base;
-
-struct pgtable_cache_struct pgt_quicklists;
/* Initial ramdisk setup */
extern unsigned int sparc_ramdisk_image;
@@ -55,19 +52,6 @@ extern unsigned int sparc_ramdisk_size;
unsigned long highstart_pfn, highend_pfn;
-pte_t *kmap_pte;
-pgprot_t kmap_prot;
-
-#define kmap_get_fixmap_pte(vaddr) \
- pte_offset_kernel(pmd_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr))
-
-void __init kmap_init(void)
-{
- /* cache the first kmap pte */
- kmap_pte = kmap_get_fixmap_pte(__fix_to_virt(FIX_KMAP_BEGIN));
- kmap_prot = __pgprot(SRMMU_ET_PTE | SRMMU_PRIV | SRMMU_CACHE);
-}
-
void show_mem(unsigned int filter)
{
printk("Mem-info:\n");
@@ -76,33 +60,8 @@ void show_mem(unsigned int filter)
nr_swap_pages << (PAGE_SHIFT-10));
printk("%ld pages of RAM\n", totalram_pages);
printk("%ld free pages\n", nr_free_pages());
-#if 0 /* undefined pgtable_cache_size, pgd_cache_size */
- printk("%ld pages in page table cache\n",pgtable_cache_size);
-#ifndef CONFIG_SMP
- if (sparc_cpu_model == sun4m || sparc_cpu_model == sun4d)
- printk("%ld entries in page dir cache\n",pgd_cache_size);
-#endif
-#endif
}
-void __init sparc_context_init(int numctx)
-{
- int ctx;
-
- ctx_list_pool = __alloc_bootmem(numctx * sizeof(struct ctx_list), SMP_CACHE_BYTES, 0UL);
-
- for(ctx = 0; ctx < numctx; ctx++) {
- struct ctx_list *clist;
-
- clist = (ctx_list_pool + ctx);
- clist->ctx_number = ctx;
- clist->ctx_mm = NULL;
- }
- ctx_free.next = ctx_free.prev = &ctx_free;
- ctx_used.next = ctx_used.prev = &ctx_used;
- for(ctx = 0; ctx < numctx; ctx++)
- add_to_free_ctxlist(ctx_list_pool + ctx);
-}
extern unsigned long cmdline_memory_size;
unsigned long last_valid_pfn;
@@ -292,22 +251,7 @@ extern void device_scan(void);
void __init paging_init(void)
{
- switch(sparc_cpu_model) {
- case sparc_leon:
- leon_init();
- /* fall through */
- case sun4m:
- case sun4d:
- srmmu_paging_init();
- sparc_unmapped_base = 0x50000000;
- break;
- default:
- prom_printf("paging_init: Cannot init paging on this Sparc\n");
- prom_printf("paging_init: sparc_cpu_model = %d\n", sparc_cpu_model);
- prom_printf("paging_init: Halting...\n");
- prom_halt();
- }
-
+ srmmu_paging_init();
prom_build_devicetree();
of_fill_in_cpu_data();
device_scan();
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 62e3f577330..c38bb72e3e8 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -8,45 +8,45 @@
* Copyright (C) 1999,2000 Anton Blanchard (anton@samba.org)
*/
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
-#include <linux/init.h>
+#include <linux/seq_file.h>
#include <linux/spinlock.h>
#include <linux/bootmem.h>
-#include <linux/fs.h>
-#include <linux/seq_file.h>
+#include <linux/pagemap.h>
+#include <linux/vmalloc.h>
#include <linux/kdebug.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
#include <linux/log2.h>
#include <linux/gfp.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
-#include <asm/bitext.h>
-#include <asm/page.h>
+#include <asm/mmu_context.h>
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/io-unit.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
-#include <asm/io.h>
+#include <asm/bitext.h>
#include <asm/vaddrs.h>
-#include <asm/traps.h>
-#include <asm/smp.h>
-#include <asm/mbus.h>
#include <asm/cache.h>
+#include <asm/traps.h>
#include <asm/oplib.h>
+#include <asm/mbus.h>
+#include <asm/page.h>
#include <asm/asi.h>
#include <asm/msi.h>
-#include <asm/mmu_context.h>
-#include <asm/io-unit.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
+#include <asm/smp.h>
+#include <asm/io.h>
/* Now the cpu specific definitions. */
-#include <asm/viking.h>
-#include <asm/mxcc.h>
-#include <asm/ross.h>
+#include <asm/turbosparc.h>
#include <asm/tsunami.h>
+#include <asm/viking.h>
#include <asm/swift.h>
-#include <asm/turbosparc.h>
#include <asm/leon.h>
+#include <asm/mxcc.h>
+#include <asm/ross.h>
#include "srmmu.h"
@@ -55,10 +55,6 @@ static unsigned int hwbug_bitmask;
int vac_cache_size;
int vac_line_size;
-struct ctx_list *ctx_list_pool;
-struct ctx_list ctx_free;
-struct ctx_list ctx_used;
-
extern struct resource sparc_iomap;
extern unsigned long last_valid_pfn;
@@ -136,8 +132,8 @@ void pmd_populate(struct mm_struct *mm, pmd_t *pmdp, struct page *ptep)
}
}
-/* Find an entry in the third-level page table.. */
-pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address)
+/* Find an entry in the third-level page table.. */
+pte_t *pte_offset_kernel(pmd_t *dir, unsigned long address)
{
void *pte;
@@ -151,55 +147,61 @@ pte_t *pte_offset_kernel(pmd_t * dir, unsigned long address)
* align: bytes, number to align at.
* Returns the virtual address of the allocated area.
*/
-static unsigned long __srmmu_get_nocache(int size, int align)
+static void *__srmmu_get_nocache(int size, int align)
{
int offset;
+ unsigned long addr;
if (size < SRMMU_NOCACHE_BITMAP_SHIFT) {
- printk("Size 0x%x too small for nocache request\n", size);
+ printk(KERN_ERR "Size 0x%x too small for nocache request\n",
+ size);
size = SRMMU_NOCACHE_BITMAP_SHIFT;
}
- if (size & (SRMMU_NOCACHE_BITMAP_SHIFT-1)) {
- printk("Size 0x%x unaligned int nocache request\n", size);
- size += SRMMU_NOCACHE_BITMAP_SHIFT-1;
+ if (size & (SRMMU_NOCACHE_BITMAP_SHIFT - 1)) {
+ printk(KERN_ERR "Size 0x%x unaligned int nocache request\n",
+ size);
+ size += SRMMU_NOCACHE_BITMAP_SHIFT - 1;
}
BUG_ON(align > SRMMU_NOCACHE_ALIGN_MAX);
offset = bit_map_string_get(&srmmu_nocache_map,
- size >> SRMMU_NOCACHE_BITMAP_SHIFT,
- align >> SRMMU_NOCACHE_BITMAP_SHIFT);
+ size >> SRMMU_NOCACHE_BITMAP_SHIFT,
+ align >> SRMMU_NOCACHE_BITMAP_SHIFT);
if (offset == -1) {
- printk("srmmu: out of nocache %d: %d/%d\n",
- size, (int) srmmu_nocache_size,
- srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT);
+ printk(KERN_ERR "srmmu: out of nocache %d: %d/%d\n",
+ size, (int) srmmu_nocache_size,
+ srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT);
return 0;
}
- return (SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT));
+ addr = SRMMU_NOCACHE_VADDR + (offset << SRMMU_NOCACHE_BITMAP_SHIFT);
+ return (void *)addr;
}
-unsigned long srmmu_get_nocache(int size, int align)
+void *srmmu_get_nocache(int size, int align)
{
- unsigned long tmp;
+ void *tmp;
tmp = __srmmu_get_nocache(size, align);
if (tmp)
- memset((void *)tmp, 0, size);
+ memset(tmp, 0, size);
return tmp;
}
-void srmmu_free_nocache(unsigned long vaddr, int size)
+void srmmu_free_nocache(void *addr, int size)
{
+ unsigned long vaddr;
int offset;
+ vaddr = (unsigned long)addr;
if (vaddr < SRMMU_NOCACHE_VADDR) {
printk("Vaddr %lx is smaller than nocache base 0x%lx\n",
vaddr, (unsigned long)SRMMU_NOCACHE_VADDR);
BUG();
}
- if (vaddr+size > srmmu_nocache_end) {
+ if (vaddr + size > srmmu_nocache_end) {
printk("Vaddr %lx is bigger than nocache end 0x%lx\n",
vaddr, srmmu_nocache_end);
BUG();
@@ -212,7 +214,7 @@ void srmmu_free_nocache(unsigned long vaddr, int size)
printk("Size 0x%x is too small\n", size);
BUG();
}
- if (vaddr & (size-1)) {
+ if (vaddr & (size - 1)) {
printk("Vaddr %lx is not aligned to size 0x%x\n", vaddr, size);
BUG();
}
@@ -226,13 +228,23 @@ void srmmu_free_nocache(unsigned long vaddr, int size)
static void srmmu_early_allocate_ptable_skeleton(unsigned long start,
unsigned long end);
-extern unsigned long probe_memory(void); /* in fault.c */
+/* Return how much physical memory we have. */
+static unsigned long __init probe_memory(void)
+{
+ unsigned long total = 0;
+ int i;
+
+ for (i = 0; sp_banks[i].num_bytes; i++)
+ total += sp_banks[i].num_bytes;
+
+ return total;
+}
/*
* Reserve nocache dynamically proportionally to the amount of
* system RAM. -- Tomas Szepe <szepe@pinerecords.com>, June 2002
*/
-static void srmmu_nocache_calcsize(void)
+static void __init srmmu_nocache_calcsize(void)
{
unsigned long sysmemavail = probe_memory() / 1024;
int srmmu_nocache_npages;
@@ -271,7 +283,7 @@ static void __init srmmu_nocache_init(void)
srmmu_nocache_bitmap = __alloc_bootmem(bitmap_bits >> 3, SMP_CACHE_BYTES, 0UL);
bit_map_init(&srmmu_nocache_map, srmmu_nocache_bitmap, bitmap_bits);
- srmmu_swapper_pg_dir = (pgd_t *)__srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE);
+ srmmu_swapper_pg_dir = __srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE);
memset(__nocache_fix(srmmu_swapper_pg_dir), 0, SRMMU_PGD_TABLE_SIZE);
init_mm.pgd = srmmu_swapper_pg_dir;
@@ -304,7 +316,7 @@ pgd_t *get_pgd_fast(void)
{
pgd_t *pgd = NULL;
- pgd = (pgd_t *)__srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE);
+ pgd = __srmmu_get_nocache(SRMMU_PGD_TABLE_SIZE, SRMMU_PGD_TABLE_SIZE);
if (pgd) {
pgd_t *init = pgd_offset_k(0);
memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
@@ -330,7 +342,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
return NULL;
- page = pfn_to_page( __nocache_pa(pte) >> PAGE_SHIFT );
+ page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
pgtable_page_ctor(page);
return page;
}
@@ -344,18 +356,50 @@ void pte_free(struct mm_struct *mm, pgtable_t pte)
if (p == 0)
BUG();
p = page_to_pfn(pte) << PAGE_SHIFT; /* Physical address */
- p = (unsigned long) __nocache_va(p); /* Nocached virtual */
- srmmu_free_nocache(p, PTE_SIZE);
+
+ /* free non cached virtual address*/
+ srmmu_free_nocache(__nocache_va(p), PTE_SIZE);
}
-/*
- */
+/* context handling - a dynamically sized pool is used */
+#define NO_CONTEXT -1
+
+struct ctx_list {
+ struct ctx_list *next;
+ struct ctx_list *prev;
+ unsigned int ctx_number;
+ struct mm_struct *ctx_mm;
+};
+
+static struct ctx_list *ctx_list_pool;
+static struct ctx_list ctx_free;
+static struct ctx_list ctx_used;
+
+/* At boot time we determine the number of contexts */
+static int num_contexts;
+
+static inline void remove_from_ctx_list(struct ctx_list *entry)
+{
+ entry->next->prev = entry->prev;
+ entry->prev->next = entry->next;
+}
+
+static inline void add_to_ctx_list(struct ctx_list *head, struct ctx_list *entry)
+{
+ entry->next = head;
+ (entry->prev = head->prev)->next = entry;
+ head->prev = entry;
+}
+#define add_to_free_ctxlist(entry) add_to_ctx_list(&ctx_free, entry)
+#define add_to_used_ctxlist(entry) add_to_ctx_list(&ctx_used, entry)
+
+
static inline void alloc_context(struct mm_struct *old_mm, struct mm_struct *mm)
{
struct ctx_list *ctxp;
ctxp = ctx_free.next;
- if(ctxp != &ctx_free) {
+ if (ctxp != &ctx_free) {
remove_from_ctx_list(ctxp);
add_to_used_ctxlist(ctxp);
mm->context = ctxp->ctx_number;
@@ -363,9 +407,9 @@ static inline void alloc_context(struct mm_struct *old_mm, struct mm_struct *mm)
return;
}
ctxp = ctx_used.next;
- if(ctxp->ctx_mm == old_mm)
+ if (ctxp->ctx_mm == old_mm)
ctxp = ctxp->next;
- if(ctxp == &ctx_used)
+ if (ctxp == &ctx_used)
panic("out of mmu contexts");
flush_cache_mm(ctxp->ctx_mm);
flush_tlb_mm(ctxp->ctx_mm);
@@ -385,11 +429,31 @@ static inline void free_context(int context)
add_to_free_ctxlist(ctx_old);
}
+static void __init sparc_context_init(int numctx)
+{
+ int ctx;
+ unsigned long size;
+
+ size = numctx * sizeof(struct ctx_list);
+ ctx_list_pool = __alloc_bootmem(size, SMP_CACHE_BYTES, 0UL);
+
+ for (ctx = 0; ctx < numctx; ctx++) {
+ struct ctx_list *clist;
+
+ clist = (ctx_list_pool + ctx);
+ clist->ctx_number = ctx;
+ clist->ctx_mm = NULL;
+ }
+ ctx_free.next = ctx_free.prev = &ctx_free;
+ ctx_used.next = ctx_used.prev = &ctx_used;
+ for (ctx = 0; ctx < numctx; ctx++)
+ add_to_free_ctxlist(ctx_list_pool + ctx);
+}
void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
struct task_struct *tsk)
{
- if(mm->context == NO_CONTEXT) {
+ if (mm->context == NO_CONTEXT) {
spin_lock(&srmmu_context_spinlock);
alloc_context(old_mm, mm);
spin_unlock(&srmmu_context_spinlock);
@@ -407,7 +471,7 @@ void switch_mm(struct mm_struct *old_mm, struct mm_struct *mm,
/* Low level IO area allocation on the SRMMU. */
static inline void srmmu_mapioaddr(unsigned long physaddr,
- unsigned long virt_addr, int bus_type)
+ unsigned long virt_addr, int bus_type)
{
pgd_t *pgdp;
pmd_t *pmdp;
@@ -420,8 +484,7 @@ static inline void srmmu_mapioaddr(unsigned long physaddr,
ptep = pte_offset_kernel(pmdp, virt_addr);
tmp = (physaddr >> 4) | SRMMU_ET_PTE;
- /*
- * I need to test whether this is consistent over all
+ /* I need to test whether this is consistent over all
* sun4m's. The bus_type represents the upper 4 bits of
* 36-bit physical address on the I/O space lines...
*/
@@ -591,10 +654,10 @@ static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start,
pmd_t *pmdp;
pte_t *ptep;
- while(start < end) {
+ while (start < end) {
pgdp = pgd_offset_k(start);
if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
- pmdp = (pmd_t *) __srmmu_get_nocache(
+ pmdp = __srmmu_get_nocache(
SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
if (pmdp == NULL)
early_pgtable_allocfail("pmd");
@@ -602,8 +665,8 @@ static void __init srmmu_early_allocate_ptable_skeleton(unsigned long start,
pgd_set(__nocache_fix(pgdp), pmdp);
}
pmdp = pmd_offset(__nocache_fix(pgdp), start);
- if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
- ptep = (pte_t *)__srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
+ if (srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
+ ptep = __srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
if (ptep == NULL)
early_pgtable_allocfail("pte");
memset(__nocache_fix(ptep), 0, PTE_SIZE);
@@ -622,18 +685,18 @@ static void __init srmmu_allocate_ptable_skeleton(unsigned long start,
pmd_t *pmdp;
pte_t *ptep;
- while(start < end) {
+ while (start < end) {
pgdp = pgd_offset_k(start);
if (pgd_none(*pgdp)) {
- pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
+ pmdp = __srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
if (pmdp == NULL)
early_pgtable_allocfail("pmd");
memset(pmdp, 0, SRMMU_PMD_TABLE_SIZE);
pgd_set(pgdp, pmdp);
}
pmdp = pmd_offset(pgdp, start);
- if(srmmu_pmd_none(*pmdp)) {
- ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE,
+ if (srmmu_pmd_none(*pmdp)) {
+ ptep = __srmmu_get_nocache(PTE_SIZE,
PTE_SIZE);
if (ptep == NULL)
early_pgtable_allocfail("pte");
@@ -671,72 +734,76 @@ static inline unsigned long srmmu_probe(unsigned long vaddr)
static void __init srmmu_inherit_prom_mappings(unsigned long start,
unsigned long end)
{
+ unsigned long probed;
+ unsigned long addr;
pgd_t *pgdp;
pmd_t *pmdp;
pte_t *ptep;
- int what = 0; /* 0 = normal-pte, 1 = pmd-level pte, 2 = pgd-level pte */
- unsigned long prompte;
+ int what; /* 0 = normal-pte, 1 = pmd-level pte, 2 = pgd-level pte */
- while(start <= end) {
+ while (start <= end) {
if (start == 0)
break; /* probably wrap around */
- if(start == 0xfef00000)
+ if (start == 0xfef00000)
start = KADB_DEBUGGER_BEGVM;
- if(!(prompte = srmmu_probe(start))) {
+ probed = srmmu_probe(start);
+ if (!probed) {
+ /* continue probing until we find an entry */
start += PAGE_SIZE;
continue;
}
-
+
/* A red snapper, see what it really is. */
what = 0;
-
- if(!(start & ~(SRMMU_REAL_PMD_MASK))) {
- if(srmmu_probe((start-PAGE_SIZE) + SRMMU_REAL_PMD_SIZE) == prompte)
+ addr = start - PAGE_SIZE;
+
+ if (!(start & ~(SRMMU_REAL_PMD_MASK))) {
+ if (srmmu_probe(addr + SRMMU_REAL_PMD_SIZE) == probed)
what = 1;
}
-
- if(!(start & ~(SRMMU_PGDIR_MASK))) {
- if(srmmu_probe((start-PAGE_SIZE) + SRMMU_PGDIR_SIZE) ==
- prompte)
+
+ if (!(start & ~(SRMMU_PGDIR_MASK))) {
+ if (srmmu_probe(addr + SRMMU_PGDIR_SIZE) == probed)
what = 2;
}
-
+
pgdp = pgd_offset_k(start);
- if(what == 2) {
- *(pgd_t *)__nocache_fix(pgdp) = __pgd(prompte);
+ if (what == 2) {
+ *(pgd_t *)__nocache_fix(pgdp) = __pgd(probed);
start += SRMMU_PGDIR_SIZE;
continue;
}
if (pgd_none(*(pgd_t *)__nocache_fix(pgdp))) {
- pmdp = (pmd_t *)__srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE, SRMMU_PMD_TABLE_SIZE);
+ pmdp = __srmmu_get_nocache(SRMMU_PMD_TABLE_SIZE,
+ SRMMU_PMD_TABLE_SIZE);
if (pmdp == NULL)
early_pgtable_allocfail("pmd");
memset(__nocache_fix(pmdp), 0, SRMMU_PMD_TABLE_SIZE);
pgd_set(__nocache_fix(pgdp), pmdp);
}
pmdp = pmd_offset(__nocache_fix(pgdp), start);
- if(srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
- ptep = (pte_t *) __srmmu_get_nocache(PTE_SIZE,
- PTE_SIZE);
+ if (srmmu_pmd_none(*(pmd_t *)__nocache_fix(pmdp))) {
+ ptep = __srmmu_get_nocache(PTE_SIZE, PTE_SIZE);
if (ptep == NULL)
early_pgtable_allocfail("pte");
memset(__nocache_fix(ptep), 0, PTE_SIZE);
pmd_set(__nocache_fix(pmdp), ptep);
}
- if(what == 1) {
- /*
- * We bend the rule where all 16 PTPs in a pmd_t point
+ if (what == 1) {
+ /* We bend the rule where all 16 PTPs in a pmd_t point
* inside the same PTE page, and we leak a perfectly
* good hardware PTE piece. Alternatives seem worse.
*/
unsigned int x; /* Index of HW PMD in soft cluster */
+ unsigned long *val;
x = (start >> PMD_SHIFT) & 15;
- *(unsigned long *)__nocache_fix(&pmdp->pmdv[x]) = prompte;
+ val = &pmdp->pmdv[x];
+ *(unsigned long *)__nocache_fix(val) = probed;
start += SRMMU_REAL_PMD_SIZE;
continue;
}
ptep = pte_offset_kernel(__nocache_fix(pmdp), start);
- *(pte_t *)__nocache_fix(ptep) = __pte(prompte);
+ *(pte_t *)__nocache_fix(ptep) = __pte(probed);
start += PAGE_SIZE;
}
}
@@ -765,18 +832,18 @@ static unsigned long __init map_spbank(unsigned long vbase, int sp_entry)
if (vstart < min_vaddr || vstart >= max_vaddr)
return vstart;
-
+
if (vend > max_vaddr || vend < min_vaddr)
vend = max_vaddr;
- while(vstart < vend) {
+ while (vstart < vend) {
do_large_mapping(vstart, pstart);
vstart += SRMMU_PGDIR_SIZE; pstart += SRMMU_PGDIR_SIZE;
}
return vstart;
}
-static inline void map_kernel(void)
+static void __init map_kernel(void)
{
int i;
@@ -789,9 +856,6 @@ static inline void map_kernel(void)
}
}
-/* Paging initialization on the Sparc Reference MMU. */
-extern void sparc_context_init(int);
-
void (*poke_srmmu)(void) __cpuinitdata = NULL;
extern unsigned long bootmem_init(unsigned long *pages_avail);
@@ -806,6 +870,7 @@ void __init srmmu_paging_init(void)
pte_t *pte;
unsigned long pages_avail;
+ init_mm.context = (unsigned long) NO_CONTEXT;
sparc_iomap.start = SUN4M_IOBASE_VADDR; /* 16MB of IOSPACE on all sun4m's. */
if (sparc_cpu_model == sun4d)
@@ -814,9 +879,9 @@ void __init srmmu_paging_init(void)
/* Find the number of contexts on the srmmu. */
cpunode = prom_getchild(prom_root_node);
num_contexts = 0;
- while(cpunode != 0) {
+ while (cpunode != 0) {
prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
- if(!strcmp(node_str, "cpu")) {
+ if (!strcmp(node_str, "cpu")) {
num_contexts = prom_getintdefault(cpunode, "mmu-nctx", 0x8);
break;
}
@@ -824,7 +889,7 @@ void __init srmmu_paging_init(void)
}
}
- if(!num_contexts) {
+ if (!num_contexts) {
prom_printf("Something wrong, can't find cpu node in paging_init.\n");
prom_halt();
}
@@ -834,14 +899,14 @@ void __init srmmu_paging_init(void)
srmmu_nocache_calcsize();
srmmu_nocache_init();
- srmmu_inherit_prom_mappings(0xfe400000,(LINUX_OPPROM_ENDVM-PAGE_SIZE));
+ srmmu_inherit_prom_mappings(0xfe400000, (LINUX_OPPROM_ENDVM - PAGE_SIZE));
map_kernel();
/* ctx table has to be physically aligned to its size */
- srmmu_context_table = (ctxd_t *)__srmmu_get_nocache(num_contexts*sizeof(ctxd_t), num_contexts*sizeof(ctxd_t));
+ srmmu_context_table = __srmmu_get_nocache(num_contexts * sizeof(ctxd_t), num_contexts * sizeof(ctxd_t));
srmmu_ctx_table_phys = (ctxd_t *)__nocache_pa((unsigned long)srmmu_context_table);
- for(i = 0; i < num_contexts; i++)
+ for (i = 0; i < num_contexts; i++)
srmmu_ctxd_set((ctxd_t *)__nocache_fix(&srmmu_context_table[i]), srmmu_swapper_pg_dir);
flush_cache_all();
@@ -897,7 +962,7 @@ void __init srmmu_paging_init(void)
void mmu_info(struct seq_file *m)
{
- seq_printf(m,
+ seq_printf(m,
"MMU type\t: %s\n"
"contexts\t: %d\n"
"nocache total\t: %ld\n"
@@ -908,10 +973,16 @@ void mmu_info(struct seq_file *m)
srmmu_nocache_map.used << SRMMU_NOCACHE_BITMAP_SHIFT);
}
+int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
+{
+ mm->context = NO_CONTEXT;
+ return 0;
+}
+
void destroy_context(struct mm_struct *mm)
{
- if(mm->context != NO_CONTEXT) {
+ if (mm->context != NO_CONTEXT) {
flush_cache_mm(mm);
srmmu_ctxd_set(&srmmu_context_table[mm->context], srmmu_swapper_pg_dir);
flush_tlb_mm(mm);
@@ -941,13 +1012,12 @@ static void __init init_vac_layout(void)
#endif
nd = prom_getchild(prom_root_node);
- while((nd = prom_getsibling(nd)) != 0) {
+ while ((nd = prom_getsibling(nd)) != 0) {
prom_getstring(nd, "device_type", node_str, sizeof(node_str));
- if(!strcmp(node_str, "cpu")) {
+ if (!strcmp(node_str, "cpu")) {
vac_line_size = prom_getint(nd, "cache-line-size");
if (vac_line_size == -1) {
- prom_printf("can't determine cache-line-size, "
- "halting.\n");
+ prom_printf("can't determine cache-line-size, halting.\n");
prom_halt();
}
cache_lines = prom_getint(nd, "cache-nlines");
@@ -958,9 +1028,9 @@ static void __init init_vac_layout(void)
vac_cache_size = cache_lines * vac_line_size;
#ifdef CONFIG_SMP
- if(vac_cache_size > max_size)
+ if (vac_cache_size > max_size)
max_size = vac_cache_size;
- if(vac_line_size < min_line_size)
+ if (vac_line_size < min_line_size)
min_line_size = vac_line_size;
//FIXME: cpus not contiguous!!
cpu++;
@@ -971,7 +1041,7 @@ static void __init init_vac_layout(void)
#endif
}
}
- if(nd == 0) {
+ if (nd == 0) {
prom_printf("No CPU nodes found, halting.\n");
prom_halt();
}
@@ -1082,7 +1152,7 @@ static void __init init_swift(void)
"=r" (swift_rev) :
"r" (SWIFT_MASKID_ADDR), "i" (ASI_M_BYPASS));
srmmu_name = "Fujitsu Swift";
- switch(swift_rev) {
+ switch (swift_rev) {
case 0x11:
case 0x20:
case 0x23:
@@ -1222,10 +1292,11 @@ static void __cpuinit poke_turbosparc(void)
/* Clear any crap from the cache or else... */
turbosparc_flush_cache_all();
- mreg &= ~(TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE); /* Temporarily disable I & D caches */
+ /* Temporarily disable I & D caches */
+ mreg &= ~(TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE);
mreg &= ~(TURBOSPARC_PCENABLE); /* Don't check parity */
srmmu_set_mmureg(mreg);
-
+
ccreg = turbosparc_get_ccreg();
#ifdef TURBOSPARC_WRITEBACK
@@ -1248,7 +1319,7 @@ static void __cpuinit poke_turbosparc(void)
default:
ccreg |= (TURBOSPARC_SCENABLE);
}
- turbosparc_set_ccreg (ccreg);
+ turbosparc_set_ccreg(ccreg);
mreg |= (TURBOSPARC_ICENABLE | TURBOSPARC_DCENABLE); /* I & D caches on */
mreg |= (TURBOSPARC_ICSNOOP); /* Icache snooping on */
@@ -1342,7 +1413,7 @@ static void __cpuinit poke_viking(void)
unsigned long bpreg;
mreg &= ~(VIKING_TCENABLE);
- if(smp_catch++) {
+ if (smp_catch++) {
/* Must disable mixed-cmd mode here for other cpu's. */
bpreg = viking_get_bpreg();
bpreg &= ~(VIKING_ACTION_MIX);
@@ -1411,7 +1482,7 @@ static void __init init_viking(void)
unsigned long mreg = srmmu_get_mmureg();
/* Ahhh, the viking. SRMMU VLSI abortion number two... */
- if(mreg & VIKING_MMODE) {
+ if (mreg & VIKING_MMODE) {
srmmu_name = "TI Viking";
viking_mxcc_present = 0;
msi_set_sync();
@@ -1467,8 +1538,8 @@ static void __init get_srmmu_type(void)
}
/* Second, check for HyperSparc or Cypress. */
- if(mod_typ == 1) {
- switch(mod_rev) {
+ if (mod_typ == 1) {
+ switch (mod_rev) {
case 7:
/* UP or MP Hypersparc */
init_hypersparc();
@@ -1488,9 +1559,8 @@ static void __init get_srmmu_type(void)
}
return;
}
-
- /*
- * Now Fujitsu TurboSparc. It might happen that it is
+
+ /* Now Fujitsu TurboSparc. It might happen that it is
* in Swift emulation mode, so we will check later...
*/
if (psr_typ == 0 && psr_vers == 5) {
@@ -1499,15 +1569,15 @@ static void __init get_srmmu_type(void)
}
/* Next check for Fujitsu Swift. */
- if(psr_typ == 0 && psr_vers == 4) {
+ if (psr_typ == 0 && psr_vers == 4) {
phandle cpunode;
char node_str[128];
/* Look if it is not a TurboSparc emulating Swift... */
cpunode = prom_getchild(prom_root_node);
- while((cpunode = prom_getsibling(cpunode)) != 0) {
+ while ((cpunode = prom_getsibling(cpunode)) != 0) {
prom_getstring(cpunode, "device_type", node_str, sizeof(node_str));
- if(!strcmp(node_str, "cpu")) {
+ if (!strcmp(node_str, "cpu")) {
if (!prom_getintdefault(cpunode, "psr-implementation", 1) &&
prom_getintdefault(cpunode, "psr-version", 1) == 5) {
init_turbosparc();
@@ -1516,13 +1586,13 @@ static void __init get_srmmu_type(void)
break;
}
}
-
+
init_swift();
return;
}
/* Now the Viking family of srmmu. */
- if(psr_typ == 4 &&
+ if (psr_typ == 4 &&
((psr_vers == 0) ||
((psr_vers == 1) && (mod_typ == 0) && (mod_rev == 0)))) {
init_viking();
@@ -1530,7 +1600,7 @@ static void __init get_srmmu_type(void)
}
/* Finally the Tsunami. */
- if(psr_typ == 4 && psr_vers == 1 && (mod_typ || mod_rev)) {
+ if (psr_typ == 4 && psr_vers == 1 && (mod_typ || mod_rev)) {
init_tsunami();
return;
}
diff --git a/arch/sparc/prom/init_32.c b/arch/sparc/prom/init_32.c
index 26c64cea3c9..9ac30c2b7db 100644
--- a/arch/sparc/prom/init_32.c
+++ b/arch/sparc/prom/init_32.c
@@ -27,13 +27,10 @@ EXPORT_SYMBOL(prom_root_node);
struct linux_nodeops *prom_nodeops;
/* You must call prom_init() before you attempt to use any of the
- * routines in the prom library. It returns 0 on success, 1 on
- * failure. It gets passed the pointer to the PROM vector.
+ * routines in the prom library.
+ * It gets passed the pointer to the PROM vector.
*/
-extern void prom_meminit(void);
-extern void prom_ranges_init(void);
-
void __init prom_init(struct linux_romvec *rp)
{
romvec = rp;
diff --git a/arch/sparc/prom/init_64.c b/arch/sparc/prom/init_64.c
index 5016c5e2057..d95db755828 100644
--- a/arch/sparc/prom/init_64.c
+++ b/arch/sparc/prom/init_64.c
@@ -22,8 +22,8 @@ int prom_stdout;
phandle prom_chosen_node;
/* You must call prom_init() before you attempt to use any of the
- * routines in the prom library. It returns 0 on success, 1 on
- * failure. It gets passed the pointer to the PROM vector.
+ * routines in the prom library.
+ * It gets passed the pointer to the PROM vector.
*/
extern void prom_cif_init(void *, void *);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-18 19:47:00 +0000