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26#include <subdev/fb/regsnv04.h>
27
28#define NV04_PFB_DEBUG_0 0x00100080
29# define NV04_PFB_DEBUG_0_PAGE_MODE 0x00000001
30# define NV04_PFB_DEBUG_0_REFRESH_OFF 0x00000010
31# define NV04_PFB_DEBUG_0_REFRESH_COUNTX64 0x00003f00
32# define NV04_PFB_DEBUG_0_REFRESH_SLOW_CLK 0x00004000
33# define NV04_PFB_DEBUG_0_SAFE_MODE 0x00008000
34# define NV04_PFB_DEBUG_0_ALOM_ENABLE 0x00010000
35# define NV04_PFB_DEBUG_0_CASOE 0x00100000
36# define NV04_PFB_DEBUG_0_CKE_INVERT 0x10000000
37# define NV04_PFB_DEBUG_0_REFINC 0x20000000
38# define NV04_PFB_DEBUG_0_SAVE_POWER_OFF 0x40000000
39#define NV04_PFB_CFG0 0x00100200
40# define NV04_PFB_CFG0_SCRAMBLE 0x20000000
41#define NV04_PFB_CFG1 0x00100204
42#define NV04_PFB_SCRAMBLE(i) (0x00100400 + 4 * (i))
43
44#define NV10_PFB_REFCTRL 0x00100210
45# define NV10_PFB_REFCTRL_VALID_1 (1 << 31)
46
47static inline struct io_mapping *
48fbmem_init(struct nvkm_device *dev)
49{
50 return io_mapping_create_wc(dev->func->resource_addr(dev, 1),
51 dev->func->resource_size(dev, 1));
52}
53
54static inline void
55fbmem_fini(struct io_mapping *fb)
56{
57 io_mapping_free(fb);
58}
59
60static inline u32
61fbmem_peek(struct io_mapping *fb, u32 off)
62{
63 u8 __iomem *p = io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
64 u32 val = ioread32(p + (off & ~PAGE_MASK));
65 io_mapping_unmap_atomic(p);
66 return val;
67}
68
69static inline void
70fbmem_poke(struct io_mapping *fb, u32 off, u32 val)
71{
72 u8 __iomem *p = io_mapping_map_atomic_wc(fb, off & PAGE_MASK);
73 iowrite32(val, p + (off & ~PAGE_MASK));
74 wmb();
75 io_mapping_unmap_atomic(p);
76}
77
78static inline bool
79fbmem_readback(struct io_mapping *fb, u32 off, u32 val)
80{
81 fbmem_poke(fb, off, val);
82 return val == fbmem_peek(fb, off);
83}
84