parisc: Use constants to encode the space registers like SR_KERNEL

Use the provided space register constants instead of hardcoded values.

Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/arch/parisc/include/asm/cache.h b/arch/parisc/include/asm/cache.h
index d53e9e2..5032e75 100644 (file)
--- a/arch/parisc/include/asm/cache.h
+++ b/arch/parisc/include/asm/cache.h
@@ -39,16 +39,13 @@ extern int icache_stride;
 extern struct pdc_cache_info cache_info;
 void parisc_setup_cache_timing(void);
 
-#define pdtlb(addr)    asm volatile("pdtlb 0(%%sr1,%0)" \
+#define pdtlb(sr, addr)        asm volatile("pdtlb 0(%%sr%0,%1)" \
                        ALTERNATIVE(ALT_COND_NO_SMP, INSN_PxTLB) \
-                       : : "r" (addr) : "memory")
-#define pitlb(addr)    asm volatile("pitlb 0(%%sr1,%0)" \
+                       : : "i"(sr), "r" (addr) : "memory")
+#define pitlb(sr, addr)        asm volatile("pitlb 0(%%sr%0,%1)" \
                        ALTERNATIVE(ALT_COND_NO_SMP, INSN_PxTLB) \
                        ALTERNATIVE(ALT_COND_NO_SPLIT_TLB, INSN_NOP) \
-                       : : "r" (addr) : "memory")
-#define pdtlb_kernel(addr)  asm volatile("pdtlb 0(%0)"   \
-                       ALTERNATIVE(ALT_COND_NO_SMP, INSN_PxTLB) \
-                       : : "r" (addr) : "memory")
+                       : : "i"(sr), "r" (addr) : "memory")
 
 #define asm_io_fdc(addr) asm volatile("fdc %%r0(%0)" \
                        ALTERNATIVE(ALT_COND_NO_DCACHE, INSN_NOP) \

diff --git a/arch/parisc/include/asm/mmu_context.h b/arch/parisc/include/asm/mmu_context.h
index e788e99..c9187fe 100644 (file)
--- a/arch/parisc/include/asm/mmu_context.h
+++ b/arch/parisc/include/asm/mmu_context.h
@@ -43,7 +43,7 @@ static inline unsigned long __space_to_prot(mm_context_t context)
 
 static inline void load_context(mm_context_t context)
 {
-       mtsp(context.space_id, 3);
+       mtsp(context.space_id, SR_USER);
        mtctl(__space_to_prot(context), 8);
 }
 

diff --git a/arch/parisc/include/asm/pgtable.h b/arch/parisc/include/asm/pgtable.h
index f0393f0..7dff736 100644 (file)
--- a/arch/parisc/include/asm/pgtable.h
+++ b/arch/parisc/include/asm/pgtable.h
@@ -70,9 +70,9 @@ static inline void purge_tlb_entries(struct mm_struct *mm, unsigned long addr)
        unsigned long flags;
 
        purge_tlb_start(flags);
-       mtsp(mm->context.space_id, 1);
-       pdtlb(addr);
-       pitlb(addr);
+       mtsp(mm->context.space_id, SR_TEMP1);
+       pdtlb(SR_TEMP1, addr);
+       pitlb(SR_TEMP1, addr);
        purge_tlb_end(flags);
 }
 

diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h
index 16ee41e..41b3ddb 100644 (file)
--- a/arch/parisc/include/asm/special_insns.h
+++ b/arch/parisc/include/asm/special_insns.h
@@ -55,8 +55,8 @@ static inline void set_eiem(unsigned long val)
 #define mfsp(reg)      ({              \
        unsigned long cr;               \
        __asm__ __volatile__(           \
-               "mfsp " #reg ",%0" :    \
-                "=r" (cr)              \
+               "mfsp %%sr%1,%0"        \
+               : "=r" (cr) : "i"(reg)  \
        );                              \
        cr;                             \
 })

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 00dc826..59c2d07 100644 (file)
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -457,7 +457,7 @@ void flush_kernel_dcache_page_addr(void *addr)
 
        flush_kernel_dcache_page_asm(addr);
        purge_tlb_start(flags);
-       pdtlb_kernel(addr);
+       pdtlb(SR_KERNEL, addr);
        purge_tlb_end(flags);
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
@@ -496,9 +496,9 @@ int __flush_tlb_range(unsigned long sid, unsigned long start,
           but cause a purge request to be broadcast to other TLBs.  */
        while (start < end) {
                purge_tlb_start(flags);
-               mtsp(sid, 1);
-               pdtlb(start);
-               pitlb(start);
+               mtsp(sid, SR_TEMP1);
+               pdtlb(SR_TEMP1, start);
+               pitlb(SR_TEMP1, start);
                purge_tlb_end(flags);
                start += PAGE_SIZE;
        }

diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 36a57aa..160996f 100644 (file)
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -91,7 +91,7 @@ static inline int map_pte_uncached(pte_t * pte,
                        printk(KERN_ERR "map_pte_uncached: page already exists\n");
                purge_tlb_start(flags);
                set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
-               pdtlb_kernel(orig_vaddr);
+               pdtlb(SR_KERNEL, orig_vaddr);
                purge_tlb_end(flags);
                vaddr += PAGE_SIZE;
                orig_vaddr += PAGE_SIZE;
@@ -175,7 +175,7 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
 
                pte_clear(&init_mm, vaddr, pte);
                purge_tlb_start(flags);
-               pdtlb_kernel(orig_vaddr);
+               pdtlb(SR_KERNEL, orig_vaddr);
                purge_tlb_end(flags);
                vaddr += PAGE_SIZE;
                orig_vaddr += PAGE_SIZE;

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index ea70a0e..5fc0c85 100644 (file)
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -13,8 +13,8 @@
 #include <linux/compiler.h>
 #include <linux/uaccess.h>
 
-#define get_user_space() (uaccess_kernel() ? 0 : mfsp(3))
-#define get_kernel_space() (0)
+#define get_user_space()       mfsp(SR_USER)
+#define get_kernel_space()     SR_KERNEL
 
 /* Returns 0 for success, otherwise, returns number of bytes not transferred. */
 extern unsigned long pa_memcpy(void *dst, const void *src,
@@ -23,8 +23,8 @@ extern unsigned long pa_memcpy(void *dst, const void *src,
 unsigned long raw_copy_to_user(void __user *dst, const void *src,
                               unsigned long len)
 {
-       mtsp(get_kernel_space(), 1);
-       mtsp(get_user_space(), 2);
+       mtsp(get_kernel_space(), SR_TEMP1);
+       mtsp(get_user_space(), SR_TEMP2);
        return pa_memcpy((void __force *)dst, src, len);
 }
 EXPORT_SYMBOL(raw_copy_to_user);
@@ -32,16 +32,16 @@ EXPORT_SYMBOL(raw_copy_to_user);
 unsigned long raw_copy_from_user(void *dst, const void __user *src,
                               unsigned long len)
 {
-       mtsp(get_user_space(), 1);
-       mtsp(get_kernel_space(), 2);
+       mtsp(get_user_space(), SR_TEMP1);
+       mtsp(get_kernel_space(), SR_TEMP2);
        return pa_memcpy(dst, (void __force *)src, len);
 }
 EXPORT_SYMBOL(raw_copy_from_user);
 
 void * memcpy(void * dst,const void *src, size_t count)
 {
-       mtsp(get_kernel_space(), 1);
-       mtsp(get_kernel_space(), 2);
+       mtsp(get_kernel_space(), SR_TEMP1);
+       mtsp(get_kernel_space(), SR_TEMP2);
        pa_memcpy(dst, src, count);
        return dst;
 }