From: Haavard Skinnemoen <hskinnemoen@atmel.com>
Date: Sun, 1 Oct 2006 06:29:17 +0000 (-0700)
Subject: [PATCH] Generic ioremap_page_range: cris conversion
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=e32cbc3df44838cc93a679aca3561f75b4964c57;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

[PATCH] Generic ioremap_page_range: cris conversion

Convert CRIS to use generic ioremap_page_range()

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Mikael Starvik <starvik@axis.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/arch/cris/mm/ioremap.c b/arch/cris/mm/ioremap.c
index 1780df3ed9e5..8b0b9348b574 100644
--- a/arch/cris/mm/ioremap.c
+++ b/arch/cris/mm/ioremap.c
@@ -10,93 +10,10 @@
  */
 
 #include <linux/vmalloc.h>
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/pgalloc.h>
-#include <asm/cacheflush.h>
-#include <asm/tlbflush.h>
 #include <asm/arch/memmap.h>
 
-static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
-	unsigned long phys_addr, pgprot_t prot)
-{
-	unsigned long end;
-
-	address &= ~PMD_MASK;
-	end = address + size;
-	if (end > PMD_SIZE)
-		end = PMD_SIZE;
-	if (address >= end)
-		BUG();
-	do {
-		if (!pte_none(*pte)) {
-			printk("remap_area_pte: page already exists\n");
-			BUG();
-		}
-		set_pte(pte, mk_pte_phys(phys_addr, prot));
-		address += PAGE_SIZE;
-		phys_addr += PAGE_SIZE;
-		pte++;
-	} while (address && (address < end));
-}
-
-static inline int remap_area_pmd(pmd_t * pmd, unsigned long address, unsigned long size,
-	unsigned long phys_addr, pgprot_t prot)
-{
-	unsigned long end;
-
-	address &= ~PGDIR_MASK;
-	end = address + size;
-	if (end > PGDIR_SIZE)
-		end = PGDIR_SIZE;
-	phys_addr -= address;
-	if (address >= end)
-		BUG();
-	do {
-		pte_t * pte = pte_alloc_kernel(pmd, address);
-		if (!pte)
-			return -ENOMEM;
-		remap_area_pte(pte, address, end - address, address + phys_addr, prot);
-		address = (address + PMD_SIZE) & PMD_MASK;
-		pmd++;
-	} while (address && (address < end));
-	return 0;
-}
-
-static int remap_area_pages(unsigned long address, unsigned long phys_addr,
-				 unsigned long size, pgprot_t prot)
-{
-	int error;
-	pgd_t * dir;
-	unsigned long end = address + size;
-
-	phys_addr -= address;
-	dir = pgd_offset(&init_mm, address);
-	flush_cache_all();
-	if (address >= end)
-		BUG();
-	do {
-		pud_t *pud;
-		pmd_t *pmd;
-
-		error = -ENOMEM;
-		pud = pud_alloc(&init_mm, dir, address);
-		if (!pud)
-			break;
-		pmd = pmd_alloc(&init_mm, pud, address);
-
-		if (!pmd)
-			break;
-		if (remap_area_pmd(pmd, address, end - address,
-				   phys_addr + address, prot))
-			break;
-		error = 0;
-		address = (address + PGDIR_SIZE) & PGDIR_MASK;
-		dir++;
-	} while (address && (address < end));
-	flush_tlb_all();
-	return error;
-}
-
 /*
  * Generic mapping function (not visible outside):
  */
@@ -135,7 +52,8 @@ void __iomem * __ioremap_prot(unsigned long phys_addr, unsigned long size, pgpro
 	if (!area)
 		return NULL;
 	addr = (void __iomem *)area->addr;
-	if (remap_area_pages((unsigned long) addr, phys_addr, size, prot)) {
+	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
+			       phys_addr, prot)) {
 		vfree((void __force *)addr);
 		return NULL;
 	}