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#ifndef __NVKM_BUS_HWSQ_H__
#define __NVKM_BUS_HWSQ_H__
#include <subdev/bus.h>
struct hwsq {
struct nouveau_subdev *subdev;
struct nouveau_hwsq *hwsq;
int sequence;
};
struct hwsq_reg {
int sequence;
bool force;
u32 addr[2];
u32 data;
};
static inline struct hwsq_reg
hwsq_reg2(u32 addr1, u32 addr2)
{
return (struct hwsq_reg) {
.sequence = 0,
.force = 0,
.addr = { addr1, addr2 },
.data = 0xdeadbeef,
};
}
static inline struct hwsq_reg
hwsq_reg(u32 addr)
{
return hwsq_reg2(addr, addr);
}
static inline int
hwsq_init(struct hwsq *ram, struct nouveau_subdev *subdev)
{
struct nouveau_bus *pbus = nouveau_bus(subdev);
int ret;
ret = nouveau_hwsq_init(pbus, &ram->hwsq);
if (ret)
return ret;
ram->sequence++;
ram->subdev = subdev;
return 0;
}
static inline int
hwsq_exec(struct hwsq *ram, bool exec)
{
int ret = 0;
if (ram->subdev) {
ret = nouveau_hwsq_fini(&ram->hwsq, exec);
ram->subdev = NULL;
}
return ret;
}
static inline u32
hwsq_rd32(struct hwsq *ram, struct hwsq_reg *reg)
{
if (reg->sequence != ram->sequence)
reg->data = nv_rd32(ram->subdev, reg->addr[0]);
return reg->data;
}
static inline void
hwsq_wr32(struct hwsq *ram, struct hwsq_reg *reg, u32 data)
{
reg->sequence = ram->sequence;
reg->data = data;
if (reg->addr[0] != reg->addr[1])
nouveau_hwsq_wr32(ram->hwsq, reg->addr[1], reg->data);
nouveau_hwsq_wr32(ram->hwsq, reg->addr[0], reg->data);
}
static inline void
hwsq_nuke(struct hwsq *ram, struct hwsq_reg *reg)
{
reg->force = true;
}
static inline u32
hwsq_mask(struct hwsq *ram, struct hwsq_reg *reg, u32 mask, u32 data)
{
u32 temp = hwsq_rd32(ram, reg);
if (temp != ((temp & ~mask) | data) || reg->force)
hwsq_wr32(ram, reg, (temp & ~mask) | data);
return temp;
}
static inline void
hwsq_setf(struct hwsq *ram, u8 flag, int data)
{
nouveau_hwsq_setf(ram->hwsq, flag, data);
}
static inline void
hwsq_wait(struct hwsq *ram, u8 flag, u8 data)
{
nouveau_hwsq_wait(ram->hwsq, flag, data);
}
static inline void
hwsq_nsec(struct hwsq *ram, u32 nsec)
{
nouveau_hwsq_nsec(ram->hwsq, nsec);
}
#endif
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