Revert "parisc: Fix invalidate/flush vmap routines"

This reverts commit 53d862fac4a09b9c56cca0433fa9de5732fd05a1.

It turned out that flush_kernel_vmap_range() is being called with
interrupts disabled.  There's no way to flush entire cache with
interrupts disabled.

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

1 files changed, 5 insertions, 19 deletions

diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 456e879d34a8..d41fee3a9874 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -611,8 +611,8 @@ void
 flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn)
 {
 	if (pfn_valid(pfn)) {
-		flush_tlb_page(vma, vmaddr);
 		if (likely(vma->vm_mm->context.space_id)) {
+			flush_tlb_page(vma, vmaddr);
 			__flush_cache_page(vma, vmaddr, PFN_PHYS(pfn));
 		} else {
 			__purge_cache_page(vma, vmaddr, PFN_PHYS(pfn));
@@ -624,7 +624,6 @@ void flush_kernel_vmap_range(void *vaddr, int size)
 {
 	unsigned long start = (unsigned long)vaddr;
 	unsigned long end = start + size;
-	unsigned long flags, physaddr;
 
 	if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
 	    (unsigned long)size >= parisc_cache_flush_threshold) {
@@ -633,14 +632,8 @@ void flush_kernel_vmap_range(void *vaddr, int size)
 		return;
 	}
 
-	while (start < end) {
-		physaddr = lpa(start);
-		purge_tlb_start(flags);
-		pdtlb(SR_KERNEL, start);
-		purge_tlb_end(flags);
-		flush_dcache_page_asm(physaddr, start);
-		start += PAGE_SIZE;
-	}
+	flush_kernel_dcache_range_asm(start, end);
+	flush_tlb_kernel_range(start, end);
 }
 EXPORT_SYMBOL(flush_kernel_vmap_range);
 
@@ -648,7 +641,6 @@ void invalidate_kernel_vmap_range(void *vaddr, int size)
 {
 	unsigned long start = (unsigned long)vaddr;
 	unsigned long end = start + size;
-	unsigned long flags, physaddr;
 
 	if ((!IS_ENABLED(CONFIG_SMP) || !arch_irqs_disabled()) &&
 	    (unsigned long)size >= parisc_cache_flush_threshold) {
@@ -657,13 +649,7 @@ void invalidate_kernel_vmap_range(void *vaddr, int size)
 		return;
 	}
 
-	while (start < end) {
-		physaddr = lpa(start);
-		purge_tlb_start(flags);
-		pdtlb(SR_KERNEL, start);
-		purge_tlb_end(flags);
-		purge_dcache_page_asm(physaddr, start);
-		start += PAGE_SIZE;
-	}
+	purge_kernel_dcache_range_asm(start, end);
+	flush_tlb_kernel_range(start, end);
 }
 EXPORT_SYMBOL(invalidate_kernel_vmap_range);