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#ifndef _SPRD_IOMMU_H
#define _SPRD_IOMMU_H
#include <linux/scatterlist.h>
#include <linux/miscdevice.h>
#ifdef CONFIG_HAS_EARLYSUSPEND
#include <linux/earlysuspend.h>
#endif
struct sprd_iommu_init_data {
int id; /* iommu id */
char *name; /* iommu name */
unsigned long iova_base; /* io virtual address base */
size_t iova_size; /* io virtual address size */
unsigned long pgt_base; /* iommu page table base address */
size_t pgt_size; /* iommu page table array size */
unsigned long ctrl_reg; /* iommu control register */
unsigned long fault_page;
unsigned long re_route_page;
unsigned int iommu_rev;
};
struct sprd_iommu_dev {
struct miscdevice misc_dev;
struct sprd_iommu_init_data *init_data;
struct gen_pool *pool;
struct sprd_iommu_ops *ops;
unsigned long pgt;
struct mutex mutex_pgt;
struct clk* mmu_mclock;
struct clk* mmu_pclock;
struct clk* mmu_clock;
struct clk* mmu_axiclock;
#ifdef CONFIG_HAS_EARLYSUSPEND
struct early_suspend early_suspend;
#endif
void *private;
unsigned int map_count;
struct mutex mutex_map;
unsigned int div2_frq;
bool light_sleep_en;
};
struct sprd_iommu_ops {
int (*init)(struct sprd_iommu_dev *dev, struct sprd_iommu_init_data *data);
int (*exit)(struct sprd_iommu_dev *dev);
unsigned long (*iova_alloc)(struct sprd_iommu_dev *dev, size_t iova_length);
void (*iova_free)(struct sprd_iommu_dev *dev, unsigned long iova, size_t iova_length);
int (*iova_map)(struct sprd_iommu_dev *dev, unsigned long iova, size_t iova_length, struct sg_table *table);
int (*iova_unmap)(struct sprd_iommu_dev *dev, unsigned long iova, size_t iova_length);
int (*backup)(struct sprd_iommu_dev *dev);
int (*restore)(struct sprd_iommu_dev *dev);
void (*enable)(struct sprd_iommu_dev *dev);
void (*disable)(struct sprd_iommu_dev *dev);
int (*dump)(struct sprd_iommu_dev *dev, unsigned long iova, size_t iova_length);
void (*open)(struct sprd_iommu_dev *dev);
void (*release)(struct sprd_iommu_dev *dev);
};
enum IOMMU_ID {
IOMMU_GSP = 0,
IOMMU_MM,
/*for whale iommu*/
IOMMU_VSP,
IOMMU_DCAM,
IOMMU_DISPC,
IOMMU_GSP0,
IOMMU_GSP1,
IOMMU_VPP,
IOMMU_MAX,
};
extern struct sprd_iommu_ops iommu_gsp_ops;
extern struct sprd_iommu_ops iommu_mm_ops;
/*for whale iommu*/
extern struct sprd_iommu_ops iommu_vsp_ops;
extern struct sprd_iommu_ops iommu_dcam_ops;
extern struct sprd_iommu_ops iommu_dispc_ops;
extern struct sprd_iommu_ops iommu_gsp0_ops;
extern struct sprd_iommu_ops iommu_gsp1_ops;
extern struct sprd_iommu_ops iommu_vpp_ops;
extern unsigned long sprd_iova_alloc(int iommu_id, unsigned long iova_length);
extern void sprd_iova_free(int iommu_id, unsigned long iova, unsigned long iova_length);
extern int sprd_iova_map(int iommu_id, unsigned long iova, unsigned long iova_length, struct sg_table *table);
extern int sprd_iova_unmap(int iommu_id, unsigned long iova, unsigned long iova_length);
extern void sprd_iommu_module_enable(uint32_t iommu_id);
extern void sprd_iommu_module_disable(uint32_t iommu_id);
#endif
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