From c39f472e9f14e49a9bc091977ced0ec45fc00c57 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 13 Jan 2015 22:13:14 +1000 Subject: drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes) The symlinks were annoying some people, and they're not used anywhere else in the kernel tree. The include directory structure has been changed so that symlinks aren't needed anymore. NVKM has been moved from core/ to nvkm/ to make it more obvious as to what the directory is for, and as some minor prep for when NVKM gets split out into its own module (virt) at a later date. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h | 184 ++++++++++++++++++++++++ 1 file changed, 184 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h new file mode 100644 index 000000000000..0ac7256443bb --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramfuc.h @@ -0,0 +1,184 @@ +#ifndef __NVKM_FBRAM_FUC_H__ +#define __NVKM_FBRAM_FUC_H__ + +#include + +struct ramfuc { + struct nouveau_memx *memx; + struct nouveau_fb *pfb; + int sequence; +}; + +struct ramfuc_reg { + int sequence; + bool force; + u32 addr; + u32 stride; /* in bytes */ + u32 mask; + u32 data; +}; + +static inline struct ramfuc_reg +ramfuc_stride(u32 addr, u32 stride, u32 mask) +{ + return (struct ramfuc_reg) { + .sequence = 0, + .addr = addr, + .stride = stride, + .mask = mask, + .data = 0xdeadbeef, + }; +} + +static inline struct ramfuc_reg +ramfuc_reg2(u32 addr1, u32 addr2) +{ + return (struct ramfuc_reg) { + .sequence = 0, + .addr = addr1, + .stride = addr2 - addr1, + .mask = 0x3, + .data = 0xdeadbeef, + }; +} + +static noinline struct ramfuc_reg +ramfuc_reg(u32 addr) +{ + return (struct ramfuc_reg) { + .sequence = 0, + .addr = addr, + .stride = 0, + .mask = 0x1, + .data = 0xdeadbeef, + }; +} + +static inline int +ramfuc_init(struct ramfuc *ram, struct nouveau_fb *pfb) +{ + struct nouveau_pwr *ppwr = nouveau_pwr(pfb); + int ret; + + ret = nouveau_memx_init(ppwr, &ram->memx); + if (ret) + return ret; + + ram->sequence++; + ram->pfb = pfb; + return 0; +} + +static inline int +ramfuc_exec(struct ramfuc *ram, bool exec) +{ + int ret = 0; + if (ram->pfb) { + ret = nouveau_memx_fini(&ram->memx, exec); + ram->pfb = NULL; + } + return ret; +} + +static inline u32 +ramfuc_rd32(struct ramfuc *ram, struct ramfuc_reg *reg) +{ + if (reg->sequence != ram->sequence) + reg->data = nv_rd32(ram->pfb, reg->addr); + return reg->data; +} + +static inline void +ramfuc_wr32(struct ramfuc *ram, struct ramfuc_reg *reg, u32 data) +{ + unsigned int mask, off = 0; + + reg->sequence = ram->sequence; + reg->data = data; + + for (mask = reg->mask; mask > 0; mask = (mask & ~1) >> 1) { + if (mask & 1) { + nouveau_memx_wr32(ram->memx, reg->addr+off, reg->data); + } + + off += reg->stride; + } +} + +static inline void +ramfuc_nuke(struct ramfuc *ram, struct ramfuc_reg *reg) +{ + reg->force = true; +} + +static inline u32 +ramfuc_mask(struct ramfuc *ram, struct ramfuc_reg *reg, u32 mask, u32 data) +{ + u32 temp = ramfuc_rd32(ram, reg); + if (temp != ((temp & ~mask) | data) || reg->force) { + ramfuc_wr32(ram, reg, (temp & ~mask) | data); + reg->force = false; + } + return temp; +} + +static inline void +ramfuc_wait(struct ramfuc *ram, u32 addr, u32 mask, u32 data, u32 nsec) +{ + nouveau_memx_wait(ram->memx, addr, mask, data, nsec); +} + +static inline void +ramfuc_nsec(struct ramfuc *ram, u32 nsec) +{ + nouveau_memx_nsec(ram->memx, nsec); +} + +static inline void +ramfuc_wait_vblank(struct ramfuc *ram) +{ + nouveau_memx_wait_vblank(ram->memx); +} + +static inline void +ramfuc_train(struct ramfuc *ram) +{ + nouveau_memx_train(ram->memx); +} + +static inline int +ramfuc_train_result(struct nouveau_fb *pfb, u32 *result, u32 rsize) +{ + struct nouveau_pwr *ppwr = nouveau_pwr(pfb); + + return nouveau_memx_train_result(ppwr, result, rsize); +} + +static inline void +ramfuc_block(struct ramfuc *ram) +{ + nouveau_memx_block(ram->memx); +} + +static inline void +ramfuc_unblock(struct ramfuc *ram) +{ + nouveau_memx_unblock(ram->memx); +} + +#define ram_init(s,p) ramfuc_init(&(s)->base, (p)) +#define ram_exec(s,e) ramfuc_exec(&(s)->base, (e)) +#define ram_have(s,r) ((s)->r_##r.addr != 0x000000) +#define ram_rd32(s,r) ramfuc_rd32(&(s)->base, &(s)->r_##r) +#define ram_wr32(s,r,d) ramfuc_wr32(&(s)->base, &(s)->r_##r, (d)) +#define ram_nuke(s,r) ramfuc_nuke(&(s)->base, &(s)->r_##r) +#define ram_mask(s,r,m,d) ramfuc_mask(&(s)->base, &(s)->r_##r, (m), (d)) +#define ram_wait(s,r,m,d,n) ramfuc_wait(&(s)->base, (r), (m), (d), (n)) +#define ram_nsec(s,n) ramfuc_nsec(&(s)->base, (n)) +#define ram_wait_vblank(s) ramfuc_wait_vblank(&(s)->base) +#define ram_train(s) ramfuc_train(&(s)->base) +#define ram_train_result(s,r,l) ramfuc_train_result((s), (r), (l)) +#define ram_block(s) ramfuc_block(&(s)->base) +#define ram_unblock(s) ramfuc_unblock(&(s)->base) + +#endif -- cgit v1.2.1