arm64/ascend: use ascend_enable_full to enable ascend platform

ascend inclusion
category: feature
bugzilla: NA
CVE: NA

-------------------------------------------------

There are too many ascend features enable flag, all of them is
used for all ascend soc till now, so use a new enable flag
to enable all of them for ascend platform by default, it would
clean and simplify the bootargs.

Also clean some code warning.

v2: modify the wrong config name.

v3: modify the wrong include head file.
Signed-off-by: NDing Tianhong <dingtianhong@huawei.com>
Reviewed-by: NZefan Li <lizefan@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

arch/arm64/mm/init.c

@@ -40,6 +40,7 @@
 #include <linux/mm.h>
 #include <linux/kexec.h>
 #include <linux/crash_dump.h>
+#include <linux/iommu.h>
 
 #include <asm/boot.h>
 #include <asm/fixmap.h>
@@ -766,6 +767,25 @@ static int __init keepinitrd_setup(char *__unused)
 __setup("keepinitrd", keepinitrd_setup);
 #endif
 
+#ifdef CONFIG_ASCEND_FEATURES
+static int __init ascend_enable_setup(char *__unused)
+{
+	if (IS_ENABLED(CONFIG_ASCEND_DVPP_MMAP))
+		enable_map_dvpp = 1;
+
+	if (IS_ENABLED(CONFIG_ASCEND_IOPF_HIPRI))
+		enable_iopf_hipri = 1;
+
+	if (IS_ENABLED(CONFIG_ASCEND_CHARGE_MIGRATE_HUGEPAGES))
+		enable_charge_mighp = 1;
+
+	return 1;
+}
+
+__setup("ascend_enable_all", ascend_enable_setup);
+#endif
+
+
 /*
  * Dump out memory limit information on panic.
  */

drivers/iommu/io-pgfault.c

@@ -48,7 +48,7 @@ struct iopf_group {
 	struct work_struct		work;
 };
 
-static int enable_iopf_hipri __read_mostly;
+int enable_iopf_hipri __read_mostly;
 
 static int iopf_complete(struct device *dev, struct iommu_fault_event *evt,
 			 enum page_response_code status)

include/linux/iommu.h

@@ -1125,4 +1125,6 @@ void iommu_debugfs_setup(void);
 static inline void iommu_debugfs_setup(void) {}
 #endif
 
+extern int enable_iopf_hipri __read_mostly;
+
 #endif /* __LINUX_IOMMU_H */

include/linux/mm.h

@@ -2856,5 +2856,7 @@ void __init setup_nr_node_ids(void);
 static inline void setup_nr_node_ids(void) {}
 #endif
 
+extern int enable_charge_mighp __read_mostly;
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */

mm/hugetlb.c

@@ -54,7 +54,7 @@ static struct hstate * __initdata parsed_hstate;
 static unsigned long __initdata default_hstate_max_huge_pages;
 static unsigned long __initdata default_hstate_size;
 static bool __initdata parsed_valid_hugepagesz = true;
-static int enable_charge_mighp __read_mostly;
+int enable_charge_mighp __read_mostly;
 
 /*
  * Protects updates to hugepage_freelists, hugepage_activelist, nr_huge_pages,

mm/mmap.c

@@ -3747,7 +3747,7 @@ subsys_initcall(init_reserve_notifier);
 /*
  *  Enable the MAP_32BIT (mmaps and hugetlb).
  */
-int enable_map_dvpp __read_mostly = 0;
+int enable_map_dvpp __read_mostly;
 
 #ifdef CONFIG_ASCEND_DVPP_MMAP