diff options
Diffstat (limited to 'nvkm/subdev/bus/hwsq.c')
| -rw-r--r-- | nvkm/subdev/bus/hwsq.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/nvkm/subdev/bus/hwsq.c b/nvkm/subdev/bus/hwsq.c deleted file mode 100644 index f757470e2..000000000 --- a/nvkm/subdev/bus/hwsq.c +++ /dev/null @@ -1,145 +0,0 @@ -/* - * Copyright 2013 Red Hat Inc. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: Ben Skeggs <bskeggs@redhat.com> - */ - -#include <subdev/timer.h> -#include <subdev/bus.h> - -struct nouveau_hwsq { - struct nouveau_bus *pbus; - u32 addr; - u32 data; - struct { - u8 data[512]; - u8 size; - } c; -}; - -static void -hwsq_cmd(struct nouveau_hwsq *hwsq, int size, u8 data[]) -{ - memcpy(&hwsq->c.data[hwsq->c.size], data, size * sizeof(data[0])); - hwsq->c.size += size; -} - -int -nouveau_hwsq_init(struct nouveau_bus *pbus, struct nouveau_hwsq **phwsq) -{ - struct nouveau_hwsq *hwsq; - - hwsq = *phwsq = kmalloc(sizeof(*hwsq), GFP_KERNEL); - if (hwsq) { - hwsq->pbus = pbus; - hwsq->addr = ~0; - hwsq->data = ~0; - memset(hwsq->c.data, 0x7f, sizeof(hwsq->c.data)); - hwsq->c.size = 0; - } - - return hwsq ? 0 : -ENOMEM; -} - -int -nouveau_hwsq_fini(struct nouveau_hwsq **phwsq, bool exec) -{ - struct nouveau_hwsq *hwsq = *phwsq; - int ret = 0, i; - if (hwsq) { - struct nouveau_bus *pbus = hwsq->pbus; - hwsq->c.size = (hwsq->c.size + 4) / 4; - if (hwsq->c.size <= pbus->hwsq_size) { - if (exec) - ret = pbus->hwsq_exec(pbus, (u32 *)hwsq->c.data, - hwsq->c.size); - if (ret) - nv_error(pbus, "hwsq exec failed: %d\n", ret); - } else { - nv_error(pbus, "hwsq ucode too large\n"); - ret = -ENOSPC; - } - - for (i = 0; ret && i < hwsq->c.size; i++) - nv_error(pbus, "\t0x%08x\n", ((u32 *)hwsq->c.data)[i]); - - *phwsq = NULL; - kfree(hwsq); - } - return ret; -} - -void -nouveau_hwsq_wr32(struct nouveau_hwsq *hwsq, u32 addr, u32 data) -{ - nv_debug(hwsq->pbus, "R[%06x] = 0x%08x\n", addr, data); - - if (hwsq->data != data) { - if ((data & 0xffff0000) != (hwsq->data & 0xffff0000)) { - hwsq_cmd(hwsq, 5, (u8[]){ 0xe2, data, data >> 8, - data >> 16, data >> 24 }); - } else { - hwsq_cmd(hwsq, 3, (u8[]){ 0x42, data, data >> 8 }); - } - } - - if ((addr & 0xffff0000) != (hwsq->addr & 0xffff0000)) { - hwsq_cmd(hwsq, 5, (u8[]){ 0xe0, addr, addr >> 8, - addr >> 16, addr >> 24 }); - } else { - hwsq_cmd(hwsq, 3, (u8[]){ 0x40, addr, addr >> 8 }); - } - - hwsq->addr = addr; - hwsq->data = data; -} - -void -nouveau_hwsq_setf(struct nouveau_hwsq *hwsq, u8 flag, int data) -{ - nv_debug(hwsq->pbus, " FLAG[%02x] = %d\n", flag, data); - flag += 0x80; - if (data >= 0) - flag += 0x20; - if (data >= 1) - flag += 0x20; - hwsq_cmd(hwsq, 1, (u8[]){ flag }); -} - -void -nouveau_hwsq_wait(struct nouveau_hwsq *hwsq, u8 flag, u8 data) -{ - nv_debug(hwsq->pbus, " WAIT[%02x] = %d\n", flag, data); - hwsq_cmd(hwsq, 3, (u8[]){ 0x5f, flag, data }); -} - -void -nouveau_hwsq_nsec(struct nouveau_hwsq *hwsq, u32 nsec) -{ - u8 shift = 0, usec = nsec / 1000; - while (usec & ~3) { - usec >>= 2; - shift++; - } - - nv_debug(hwsq->pbus, " DELAY = %d ns\n", nsec); - hwsq_cmd(hwsq, 1, (u8[]){ 0x00 | (shift << 2) | usec }); -} |