From: Ben Skeggs Date: Tue, 15 Oct 2013 00:49:39 +0000 (+1000) Subject: drm/nouveau/bus: add interfaces/helpers for sequencer X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2984506fb6172712f83e573319baf7dbd0eb9028;p=linux-beck.git drm/nouveau/bus: add interfaces/helpers for sequencer Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index fbe33ed5f6cf..3859958581c2 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile @@ -44,6 +44,7 @@ nouveau-y += core/subdev/bios/xpio.o nouveau-y += core/subdev/bus/nv04.o nouveau-y += core/subdev/bus/nv31.o nouveau-y += core/subdev/bus/nv50.o +nouveau-y += core/subdev/bus/nv94.o nouveau-y += core/subdev/bus/nvc0.o nouveau-y += core/subdev/clock/nv04.o nouveau-y += core/subdev/clock/nv40.o diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nv50.c b/drivers/gpu/drm/nouveau/core/engine/device/nv50.c index cb6039c01a67..f44a2baecc79 100644 --- a/drivers/gpu/drm/nouveau/core/engine/device/nv50.c +++ b/drivers/gpu/drm/nouveau/core/engine/device/nv50.c @@ -166,7 +166,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv94_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nv84_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -192,7 +192,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv94_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nv84_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -218,7 +218,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nv84_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -244,7 +244,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nv84_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -270,7 +270,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nvaa_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -296,7 +296,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nv50_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nvaa_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -322,7 +322,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nva3_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nva3_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -350,7 +350,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nva3_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nva3_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -377,7 +377,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nva3_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nva3_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; @@ -404,7 +404,7 @@ nv50_identify(struct nouveau_device *device) device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; device->oclass[NVDEV_SUBDEV_DEVINIT] = &nva3_devinit_oclass; device->oclass[NVDEV_SUBDEV_MC ] = nv98_mc_oclass; - device->oclass[NVDEV_SUBDEV_BUS ] = nv50_bus_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = nv94_bus_oclass; device->oclass[NVDEV_SUBDEV_TIMER ] = &nv04_timer_oclass; device->oclass[NVDEV_SUBDEV_FB ] = nvaf_fb_oclass; device->oclass[NVDEV_SUBDEV_INSTMEM] = &nv50_instmem_oclass; diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bus.h b/drivers/gpu/drm/nouveau/core/include/subdev/bus.h index 837401d41e7d..697f7ce70aab 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/bus.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bus.h @@ -11,6 +11,8 @@ struct nouveau_bus_intr { struct nouveau_bus { struct nouveau_subdev base; + int (*hwsq_exec)(struct nouveau_bus *, u32 *, u32); + u32 hwsq_size; }; static inline struct nouveau_bus * @@ -36,6 +38,16 @@ nouveau_bus(void *obj) extern struct nouveau_oclass *nv04_bus_oclass; extern struct nouveau_oclass *nv31_bus_oclass; extern struct nouveau_oclass *nv50_bus_oclass; +extern struct nouveau_oclass *nv94_bus_oclass; extern struct nouveau_oclass *nvc0_bus_oclass; +/* interface to sequencer */ +struct nouveau_hwsq; +int nouveau_hwsq_init(struct nouveau_bus *, struct nouveau_hwsq **); +int nouveau_hwsq_fini(struct nouveau_hwsq **, bool exec); +void nouveau_hwsq_wr32(struct nouveau_hwsq *, u32 addr, u32 data); +void nouveau_hwsq_setf(struct nouveau_hwsq *, u8 flag, int data); +void nouveau_hwsq_wait(struct nouveau_hwsq *, u8 flag, u8 data); +void nouveau_hwsq_nsec(struct nouveau_hwsq *, u32 nsec); + #endif diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/hwsq.c b/drivers/gpu/drm/nouveau/core/subdev/bus/hwsq.c new file mode 100644 index 000000000000..f757470e2284 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/bus/hwsq.c @@ -0,0 +1,145 @@ +/* + * 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 + */ + +#include +#include + +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 }); +} diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/hwsq.h b/drivers/gpu/drm/nouveau/core/subdev/bus/hwsq.h new file mode 100644 index 000000000000..12176f9c1bc6 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/bus/hwsq.h @@ -0,0 +1,113 @@ +#ifndef __NVKM_BUS_HWSQ_H__ +#define __NVKM_BUS_HWSQ_H__ + +#include + +struct hwsq { + struct nouveau_subdev *subdev; + struct nouveau_hwsq *hwsq; + int sequence; +}; + +struct hwsq_reg { + int sequence; + bool force; + u32 addr[2]; + u32 data; +}; + +static inline struct hwsq_reg +hwsq_reg2(u32 addr1, u32 addr2) +{ + return (struct hwsq_reg) { + .sequence = 0, + .force = 0, + .addr = { addr1, addr2 }, + .data = 0xdeadbeef, + }; +} + +static inline struct hwsq_reg +hwsq_reg(u32 addr) +{ + return hwsq_reg2(addr, addr); +} + +static inline int +hwsq_init(struct hwsq *ram, struct nouveau_subdev *subdev) +{ + struct nouveau_bus *pbus = nouveau_bus(subdev); + int ret; + + ret = nouveau_hwsq_init(pbus, &ram->hwsq); + if (ret) + return ret; + + ram->sequence++; + ram->subdev = subdev; + return 0; +} + +static inline int +hwsq_exec(struct hwsq *ram, bool exec) +{ + int ret = 0; + if (ram->subdev) { + ret = nouveau_hwsq_fini(&ram->hwsq, exec); + ram->subdev = NULL; + } + return ret; +} + +static inline u32 +hwsq_rd32(struct hwsq *ram, struct hwsq_reg *reg) +{ + if (reg->sequence != ram->sequence) + reg->data = nv_rd32(ram->subdev, reg->addr[0]); + return reg->data; +} + +static inline void +hwsq_wr32(struct hwsq *ram, struct hwsq_reg *reg, u32 data) +{ + reg->sequence = ram->sequence; + reg->data = data; + if (reg->addr[0] != reg->addr[1]) + nouveau_hwsq_wr32(ram->hwsq, reg->addr[1], reg->data); + nouveau_hwsq_wr32(ram->hwsq, reg->addr[0], reg->data); +} + +static inline void +hwsq_nuke(struct hwsq *ram, struct hwsq_reg *reg) +{ + reg->force = true; +} + +static inline u32 +hwsq_mask(struct hwsq *ram, struct hwsq_reg *reg, u32 mask, u32 data) +{ + u32 temp = hwsq_rd32(ram, reg); + if (temp != ((temp & ~mask) | data) || reg->force) + hwsq_wr32(ram, reg, (temp & ~mask) | data); + return temp; +} + +static inline void +hwsq_setf(struct hwsq *ram, u8 flag, int data) +{ + nouveau_hwsq_setf(ram->hwsq, flag, data); +} + +static inline void +hwsq_wait(struct hwsq *ram, u8 flag, u8 data) +{ + nouveau_hwsq_wait(ram->hwsq, flag, data); +} + +static inline void +hwsq_nsec(struct hwsq *ram, u32 nsec) +{ + nouveau_hwsq_nsec(ram->hwsq, nsec); +} + +#endif diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.c b/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.c index 478209930dcd..23921b5351db 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.c @@ -77,6 +77,8 @@ nv04_bus_ctor(struct nouveau_object *parent, struct nouveau_object *engine, return ret; nv_subdev(priv)->intr = impl->intr; + priv->base.hwsq_exec = impl->hwsq_exec; + priv->base.hwsq_size = impl->hwsq_size; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.h b/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.h index 0ac589d26a4c..4d7602450a20 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.h +++ b/drivers/gpu/drm/nouveau/core/subdev/bus/nv04.h @@ -7,13 +7,17 @@ struct nv04_bus_priv { struct nouveau_bus base; }; -int nv04_bus_ctor(struct nouveau_object *, struct nouveau_object *, - struct nouveau_oclass *, void *, u32, - struct nouveau_object **); +int nv04_bus_ctor(struct nouveau_object *, struct nouveau_object *, + struct nouveau_oclass *, void *, u32, + struct nouveau_object **); +int nv50_bus_init(struct nouveau_object *); +void nv50_bus_intr(struct nouveau_subdev *); struct nv04_bus_impl { struct nouveau_oclass base; void (*intr)(struct nouveau_subdev *); + int (*hwsq_exec)(struct nouveau_bus *, u32 *, u32); + u32 hwsq_size; }; #endif diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c index cda534790d1d..11918f7e2aca 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bus/nv50.c @@ -23,9 +23,27 @@ * Ben Skeggs */ +#include + #include "nv04.h" -static void +static int +nv50_bus_hwsq_exec(struct nouveau_bus *pbus, u32 *data, u32 size) +{ + struct nv50_bus_priv *priv = (void *)pbus; + int i; + + nv_mask(pbus, 0x001098, 0x00000008, 0x00000000); + nv_wr32(pbus, 0x001304, 0x00000000); + for (i = 0; i < size; i++) + nv_wr32(priv, 0x001400 + (i * 4), data[i]); + nv_mask(pbus, 0x001098, 0x00000018, 0x00000018); + nv_wr32(pbus, 0x00130c, 0x00000003); + + return nv_wait(pbus, 0x001308, 0x00000100, 0x00000000) ? 0 : -ETIMEDOUT; +} + +void nv50_bus_intr(struct nouveau_subdev *subdev) { struct nouveau_bus *pbus = nouveau_bus(subdev); @@ -57,7 +75,7 @@ nv50_bus_intr(struct nouveau_subdev *subdev) } } -static int +int nv50_bus_init(struct nouveau_object *object) { struct nv04_bus_priv *priv = (void *)object; @@ -82,4 +100,6 @@ nv50_bus_oclass = &(struct nv04_bus_impl) { .fini = _nouveau_bus_fini, }, .intr = nv50_bus_intr, + .hwsq_exec = nv50_bus_hwsq_exec, + .hwsq_size = 64, }.base; diff --git a/drivers/gpu/drm/nouveau/core/subdev/bus/nv94.c b/drivers/gpu/drm/nouveau/core/subdev/bus/nv94.c new file mode 100644 index 000000000000..d3659055fa4b --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/bus/nv94.c @@ -0,0 +1,59 @@ +/* + * Copyright 2012 Nouveau Community + * + * 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: Martin Peres + * Ben Skeggs + */ + +#include + +#include "nv04.h" + +static int +nv94_bus_hwsq_exec(struct nouveau_bus *pbus, u32 *data, u32 size) +{ + struct nv50_bus_priv *priv = (void *)pbus; + int i; + + nv_mask(pbus, 0x001098, 0x00000008, 0x00000000); + nv_wr32(pbus, 0x001304, 0x00000000); + nv_wr32(pbus, 0x001318, 0x00000000); + for (i = 0; i < size; i++) + nv_wr32(priv, 0x080000 + (i * 4), data[i]); + nv_mask(pbus, 0x001098, 0x00000018, 0x00000018); + nv_wr32(pbus, 0x00130c, 0x00000001); + + return nv_wait(pbus, 0x001308, 0x00000100, 0x00000000) ? 0 : -ETIMEDOUT; +} + +struct nouveau_oclass * +nv94_bus_oclass = &(struct nv04_bus_impl) { + .base.handle = NV_SUBDEV(BUS, 0x94), + .base.ofuncs = &(struct nouveau_ofuncs) { + .ctor = nv04_bus_ctor, + .dtor = _nouveau_bus_dtor, + .init = nv50_bus_init, + .fini = _nouveau_bus_fini, + }, + .intr = nv50_bus_intr, + .hwsq_exec = nv94_bus_hwsq_exec, + .hwsq_size = 128, +}.base;