1 #ifndef __NVKM_PWR_MEMX_H__
2 #define __NVKM_PWR_MEMX_H__
7 struct nouveau_pwr *ppwr;
18 memx_out(struct nouveau_memx *memx)
20 struct nouveau_pwr *ppwr = memx->ppwr;
24 nv_wr32(ppwr, 0x10a1c4, (memx->c.size << 16) | memx->c.mthd);
25 for (i = 0; i < memx->c.size; i++)
26 nv_wr32(ppwr, 0x10a1c4, memx->c.data[i]);
32 memx_cmd(struct nouveau_memx *memx, u32 mthd, u32 size, u32 data[])
34 if ((memx->c.size + size >= ARRAY_SIZE(memx->c.data)) ||
35 (memx->c.size && memx->c.mthd != mthd))
37 memcpy(&memx->c.data[memx->c.size], data, size * sizeof(data[0]));
43 nouveau_memx_init(struct nouveau_pwr *ppwr, struct nouveau_memx **pmemx)
45 struct nouveau_memx *memx;
49 ret = ppwr->message(ppwr, reply, PROC_MEMX, MEMX_MSG_INFO, 0, 0);
53 memx = *pmemx = kzalloc(sizeof(*memx), GFP_KERNEL);
57 memx->base = reply[0];
58 memx->size = reply[1];
60 /* acquire data segment access */
62 nv_wr32(ppwr, 0x10a580, 0x00000003);
63 } while (nv_rd32(ppwr, 0x10a580) != 0x00000003);
64 nv_wr32(ppwr, 0x10a1c0, 0x01000000 | memx->base);
65 nv_wr32(ppwr, 0x10a1c4, 0x00010000 | MEMX_ENTER);
66 nv_wr32(ppwr, 0x10a1c4, 0x00000000);
71 nouveau_memx_fini(struct nouveau_memx **pmemx, bool exec)
73 struct nouveau_memx *memx = *pmemx;
74 struct nouveau_pwr *ppwr = memx->ppwr;
77 /* flush the cache... */
80 /* release data segment access */
81 nv_wr32(ppwr, 0x10a1c4, 0x00000000 | MEMX_LEAVE);
82 finish = nv_rd32(ppwr, 0x10a1c0) & 0x00ffffff;
83 nv_wr32(ppwr, 0x10a580, 0x00000000);
85 /* call MEMX process to execute the script, and wait for reply */
87 ppwr->message(ppwr, reply, PROC_MEMX, MEMX_MSG_EXEC,
96 nouveau_memx_wr32(struct nouveau_memx *memx, u32 addr, u32 data)
98 nv_debug(memx->ppwr, "R[%06x] = 0x%08x\n", addr, data);
99 memx_cmd(memx, MEMX_WR32, 2, (u32[]){ addr, data });
103 nouveau_memx_wait(struct nouveau_memx *memx,
104 u32 addr, u32 mask, u32 data, u32 nsec)
106 nv_debug(memx->ppwr, "R[%06x] & 0x%08x == 0x%08x, %d us\n",
107 addr, mask, data, nsec);
108 memx_cmd(memx, MEMX_WAIT, 4, (u32[]){ addr, ~mask, data, nsec });
109 memx_out(memx); /* fuc can't handle multiple */
113 nouveau_memx_nsec(struct nouveau_memx *memx, u32 nsec)
115 nv_debug(memx->ppwr, " DELAY = %d ns\n", nsec);
116 memx_cmd(memx, MEMX_DELAY, 1, (u32[]){ nsec });
117 memx_out(memx); /* fuc can't handle multiple */