From: Cho KyongHo <pullip.cho@xxxxxxxxxxx>
This commit changes the function to get MMU version simpler.
Signed-off-by: Cho KyongHo <pullip.cho@xxxxxxxxxxx>
---
drivers/iommu/exynos-iommu.c | 30 ++++++------------------------
1 file changed, 6 insertions(+), 24 deletions(-)
diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c
index 00915f2..54011e5 100755
--- a/drivers/iommu/exynos-iommu.c
+++ b/drivers/iommu/exynos-iommu.c
@@ -252,24 +252,6 @@ static unsigned int __raw_sysmmu_version(struct sysmmu_drvdata *data)
return MMU_RAW_VER(__raw_readl(data->sfrbase + REG_MMU_VERSION));
}
-static unsigned int __sysmmu_version(struct sysmmu_drvdata *data,
- unsigned int *minor)
-{
- unsigned int ver = 0;
-
- ver = __raw_sysmmu_version(data);
- if (ver > MAKE_MMU_VER(3, 3)) {
- dev_err(data->sysmmu, "%s: version(%d.%d) is higher than 3.3\n",
- __func__, MMU_MAJ_VER(ver), MMU_MIN_VER(ver));
- BUG();
- }
-
- if (minor)
- *minor = MMU_MIN_VER(ver);
-
- return MMU_MAJ_VER(ver);
-}
-
static bool sysmmu_block(void __iomem *sfrbase)
{
int i = 120;
@@ -427,13 +409,13 @@ static bool __sysmmu_disable(struct sysmmu_drvdata *data)
static void __sysmmu_init_config(struct sysmmu_drvdata *data)
{
unsigned int cfg = CFG_LRU | CFG_QOS(15);
- int maj, min = 0;
+ unsigned int ver;
- maj = __sysmmu_version(data, &min);
- if (maj == 3) {
- if (min >= 2) {
+ ver = __raw_sysmmu_version(data);
+ if (MMU_MAJ_VER(ver) == 3) {
+ if (MMU_MIN_VER(ver) >= 2) {
cfg |= CFG_FLPDCACHE;
- if (min == 3) {
+ if (MMU_MIN_VER(ver) == 3) {
cfg |= CFG_ACGEN;
cfg &= ~CFG_LRU;
} else {
@@ -591,7 +573,7 @@ static void sysmmu_tlb_invalidate_entry(struct device *dev, sysmmu_iova_t iova,
* 1MB page can be cached in one of all sets.
* 64KB page can be one of 16 consecutive sets.
*/
- if (__sysmmu_version(data, NULL) == 2)
+ if (MMU_MAJ_VER(__raw_sysmmu_version(data)) == 2)
num_inv = min_t(unsigned int,
size / PAGE_SIZE, 64);
--
1.7.9.5
--
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