diff options
author | Roy Spliet <rspliet@eclipso.eu> | 2014-09-12 16:00:15 (GMT) |
---|---|---|
committer | Ben Skeggs <bskeggs@redhat.com> | 2014-09-15 12:25:14 (GMT) |
commit | 930da220bf39372587af867ae6543d0205b8b66e (patch) | |
tree | 14ce78ef433cf1ed68d9523e4b7588f947eb1e5c /drivers | |
parent | de1c4e281bda1b069b72a0b7fa2ab6fed585c70c (diff) | |
download | linux-930da220bf39372587af867ae6543d0205b8b66e.tar.xz |
drm/nouveau/fb/ram: Support strided regs
Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/ramfuc.h | 45 | ||||
-rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c | 2 |
2 files changed, 38 insertions, 9 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramfuc.h b/drivers/gpu/drm/nouveau/core/subdev/fb/ramfuc.h index 6ae560a..d1fbbe4 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramfuc.h +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramfuc.h @@ -12,16 +12,32 @@ struct ramfuc { struct ramfuc_reg { int sequence; bool force; - u32 addr[2]; + 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, addr2 }, + .addr = addr1, + .stride = addr2 - addr1, + .mask = 0x3, .data = 0xdeadbeef, }; } @@ -29,7 +45,13 @@ ramfuc_reg2(u32 addr1, u32 addr2) static noinline struct ramfuc_reg ramfuc_reg(u32 addr) { - return ramfuc_reg2(addr, addr); + return (struct ramfuc_reg) { + .sequence = 0, + .addr = addr, + .stride = 0, + .mask = 0x1, + .data = 0xdeadbeef, + }; } static inline int @@ -62,18 +84,25 @@ 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[0]); + 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; - if (reg->addr[0] != reg->addr[1]) - nouveau_memx_wr32(ram->memx, reg->addr[1], reg->data); - nouveau_memx_wr32(ram->memx, reg->addr[0], reg->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 @@ -125,7 +154,7 @@ ramfuc_unblock(struct ramfuc *ram) #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[0] != 0x000000) +#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) diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c index 66d8abb..6bae474 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnve0.c @@ -237,7 +237,7 @@ nve0_ram_nuts(struct nve0_ram *ram, struct ramfuc_reg *reg, { struct nve0_fb_priv *priv = (void *)nouveau_fb(ram); struct ramfuc *fuc = &ram->fuc.base; - u32 addr = 0x110000 + (reg->addr[0] & 0xfff); + u32 addr = 0x110000 + (reg->addr & 0xfff); u32 mask = _mask | _copy; u32 data = (_data & _mask) | (reg->data & _copy); u32 i; |