| #ifndef __NVKM_PWR_MEMX_H__ |
| #define __NVKM_PWR_MEMX_H__ |
| |
| #include <subdev/pwr.h> |
| #include <subdev/pwr/fuc/os.h> |
| |
| struct nouveau_memx { |
| struct nouveau_pwr *ppwr; |
| u32 base; |
| u32 size; |
| struct { |
| u32 mthd; |
| u32 size; |
| u32 data[64]; |
| } c; |
| }; |
| |
| static void |
| memx_out(struct nouveau_memx *memx) |
| { |
| struct nouveau_pwr *ppwr = memx->ppwr; |
| int i; |
| |
| if (memx->c.size) { |
| nv_wr32(ppwr, 0x10a1c4, (memx->c.size << 16) | memx->c.mthd); |
| for (i = 0; i < memx->c.size; i++) |
| nv_wr32(ppwr, 0x10a1c4, memx->c.data[i]); |
| memx->c.size = 0; |
| } |
| } |
| |
| static void |
| memx_cmd(struct nouveau_memx *memx, u32 mthd, u32 size, u32 data[]) |
| { |
| if ((memx->c.size + size >= ARRAY_SIZE(memx->c.data)) || |
| (memx->c.size && memx->c.mthd != mthd)) |
| memx_out(memx); |
| memcpy(&memx->c.data[memx->c.size], data, size * sizeof(data[0])); |
| memx->c.size += size; |
| memx->c.mthd = mthd; |
| } |
| |
| int |
| nouveau_memx_init(struct nouveau_pwr *ppwr, struct nouveau_memx **pmemx) |
| { |
| struct nouveau_memx *memx; |
| u32 reply[2]; |
| int ret; |
| |
| ret = ppwr->message(ppwr, reply, PROC_MEMX, MEMX_MSG_INFO, 0, 0); |
| if (ret) |
| return ret; |
| |
| memx = *pmemx = kzalloc(sizeof(*memx), GFP_KERNEL); |
| if (!memx) |
| return -ENOMEM; |
| memx->ppwr = ppwr; |
| memx->base = reply[0]; |
| memx->size = reply[1]; |
| |
| /* acquire data segment access */ |
| do { |
| nv_wr32(ppwr, 0x10a580, 0x00000003); |
| } while (nv_rd32(ppwr, 0x10a580) != 0x00000003); |
| nv_wr32(ppwr, 0x10a1c0, 0x01000000 | memx->base); |
| nv_wr32(ppwr, 0x10a1c4, 0x00010000 | MEMX_ENTER); |
| nv_wr32(ppwr, 0x10a1c4, 0x00000000); |
| return 0; |
| } |
| |
| int |
| nouveau_memx_fini(struct nouveau_memx **pmemx, bool exec) |
| { |
| struct nouveau_memx *memx = *pmemx; |
| struct nouveau_pwr *ppwr = memx->ppwr; |
| u32 finish, reply[2]; |
| |
| /* flush the cache... */ |
| memx_out(memx); |
| |
| /* release data segment access */ |
| nv_wr32(ppwr, 0x10a1c4, 0x00000000 | MEMX_LEAVE); |
| finish = nv_rd32(ppwr, 0x10a1c0) & 0x00ffffff; |
| nv_wr32(ppwr, 0x10a580, 0x00000000); |
| |
| /* call MEMX process to execute the script, and wait for reply */ |
| if (exec) { |
| ppwr->message(ppwr, reply, PROC_MEMX, MEMX_MSG_EXEC, |
| memx->base, finish); |
| } |
| |
| kfree(memx); |
| return 0; |
| } |
| |
| void |
| nouveau_memx_wr32(struct nouveau_memx *memx, u32 addr, u32 data) |
| { |
| nv_debug(memx->ppwr, "R[%06x] = 0x%08x\n", addr, data); |
| memx_cmd(memx, MEMX_WR32, 2, (u32[]){ addr, data }); |
| } |
| |
| void |
| nouveau_memx_wait(struct nouveau_memx *memx, |
| u32 addr, u32 mask, u32 data, u32 nsec) |
| { |
| nv_debug(memx->ppwr, "R[%06x] & 0x%08x == 0x%08x, %d us\n", |
| addr, mask, data, nsec); |
| memx_cmd(memx, MEMX_WAIT, 4, (u32[]){ addr, ~mask, data, nsec }); |
| memx_out(memx); /* fuc can't handle multiple */ |
| } |
| |
| void |
| nouveau_memx_nsec(struct nouveau_memx *memx, u32 nsec) |
| { |
| nv_debug(memx->ppwr, " DELAY = %d ns\n", nsec); |
| memx_cmd(memx, MEMX_DELAY, 1, (u32[]){ nsec }); |
| memx_out(memx); /* fuc can't handle multiple */ |
| } |
| |
| #endif |