ARM: EXYNOS4: Enhancement of System MMU driver

This patch includes the following enhancements for System MMU:
- Enhanced readability
- Removal of unused data structures or their members
- Simplified function definitions
- Corrections of some logical errors
- Full compliance with Linux coding style
- Simpler way of registering callback functions of System MMU faults

Signed-off-by: KyongHo Cho <pullip.cho@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 4 insertions, 84 deletions

diff --git a/arch/arm/mach-exynos4/include/mach/sysmmu.h b/arch/arm/mach-exynos4/include/mach/sysmmu.h
index 1428adad8379..eff3dc37f3da 100644
--- a/arch/arm/mach-exynos4/include/mach/sysmmu.h
+++ b/arch/arm/mach-exynos4/include/mach/sysmmu.h
@@ -13,9 +13,6 @@
 #ifndef __ASM_ARM_ARCH_SYSMMU_H
 #define __ASM_ARM_ARCH_SYSMMU_H __FILE__
 
-#define EXYNOS4_SYSMMU_TOTAL_IPNUM      16
-#define S5P_SYSMMU_TOTAL_IPNUM          EXYNOS4_SYSMMU_TOTAL_IPNUM
-
 enum exynos4_sysmmu_ips {
         SYSMMU_MDMA,
         SYSMMU_SSS,
@@ -33,90 +30,13 @@ enum exynos4_sysmmu_ips {
         SYSMMU_TV,
         SYSMMU_MFC_L,
         SYSMMU_MFC_R,
+        EXYNOS4_SYSMMU_TOTAL_IPNUM,
 };
 
-static char *sysmmu_ips_name[EXYNOS4_SYSMMU_TOTAL_IPNUM] = {
-        "SYSMMU_MDMA"   ,
-        "SYSMMU_SSS"    ,
-        "SYSMMU_FIMC0"  ,
-        "SYSMMU_FIMC1"  ,
-        "SYSMMU_FIMC2"  ,
-        "SYSMMU_FIMC3"  ,
-        "SYSMMU_JPEG"   ,
-        "SYSMMU_FIMD0"  ,
-        "SYSMMU_FIMD1"  ,
-        "SYSMMU_PCIe"   ,
-        "SYSMMU_G2D"    ,
-        "SYSMMU_ROTATOR",
-        "SYSMMU_MDMA2"  ,
-        "SYSMMU_TV"     ,
-        "SYSMMU_MFC_L"  ,
-        "SYSMMU_MFC_R"  ,
-};
-
-typedef enum exynos4_sysmmu_ips sysmmu_ips;
-
-struct sysmmu_tt_info {
-        unsigned long *pgd;
-        unsigned long pgd_paddr;
-        unsigned long *pte;
-};
-
-struct sysmmu_controller {
-        const char              *name;
-
-        /* channels registers */
-        void __iomem            *regs;
-
-        /* channel irq */
-        unsigned int            irq;
-
-        sysmmu_ips              ips;
-
-        /* Translation Table Info. */
-        struct sysmmu_tt_info   *tt_info;
-
-        struct resource         *mem;
-        struct device           *dev;
-
-        /* SysMMU controller enable - true : enable */
-        bool                    enable;
-};
-
-/**
- * s5p_sysmmu_enable() - enable system mmu of ip
- * @ips: The ip connected system mmu.
- *
- * This function enable system mmu to transfer address
- * from virtual address to physical address
- */
-int s5p_sysmmu_enable(sysmmu_ips ips);
+#define S5P_SYSMMU_TOTAL_IPNUM          EXYNOS4_SYSMMU_TOTAL_IPNUM
 
-/**
- * s5p_sysmmu_disable() - disable sysmmu mmu of ip
- * @ips: The ip connected system mmu.
- *
- * This function disable system mmu to transfer address
- * from virtual address to physical address
- */
-int s5p_sysmmu_disable(sysmmu_ips ips);
+extern const char *sysmmu_ips_name[EXYNOS4_SYSMMU_TOTAL_IPNUM];
 
-/**
- * s5p_sysmmu_set_tablebase_pgd() - set page table base address to refer page table
- * @ips: The ip connected system mmu.
- * @pgd: The page table base address.
- *
- * This function set page table base address
- * When system mmu transfer address from virtaul address to physical address,
- * system mmu refer address information from page table
- */
-int s5p_sysmmu_set_tablebase_pgd(sysmmu_ips ips, unsigned long pgd);
+typedef enum exynos4_sysmmu_ips sysmmu_ips;
 
-/**
- * s5p_sysmmu_tlb_invalidate() - flush all TLB entry in system mmu
- * @ips: The ip connected system mmu.
- *
- * This function flush all TLB entry in system mmu
- */
-int s5p_sysmmu_tlb_invalidate(sysmmu_ips ips);
 #endif /* __ASM_ARM_ARCH_SYSMMU_H */