diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/mc/gp100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/mc/gp100.c | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/mc/gp100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/gp100.c new file mode 100644 index 000000000..5fd1a0595 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/mc/gp100.c @@ -0,0 +1,128 @@ +/* + * Copyright 2012 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 + */ +#define gp100_mc(p) container_of((p), struct gp100_mc, base) +#include "priv.h" + +struct gp100_mc { + struct nvkm_mc base; + spinlock_t lock; + bool intr; + u32 mask; +}; + +static void +gp100_mc_intr_update(struct gp100_mc *mc) +{ + struct nvkm_device *device = mc->base.subdev.device; + u32 mask = mc->intr ? mc->mask : 0, i; + for (i = 0; i < 2; i++) { + nvkm_wr32(device, 0x000180 + (i * 0x04), ~mask); + nvkm_wr32(device, 0x000160 + (i * 0x04), mask); + } +} + +void +gp100_mc_intr_unarm(struct nvkm_mc *base) +{ + struct gp100_mc *mc = gp100_mc(base); + unsigned long flags; + spin_lock_irqsave(&mc->lock, flags); + mc->intr = false; + gp100_mc_intr_update(mc); + spin_unlock_irqrestore(&mc->lock, flags); +} + +void +gp100_mc_intr_rearm(struct nvkm_mc *base) +{ + struct gp100_mc *mc = gp100_mc(base); + unsigned long flags; + spin_lock_irqsave(&mc->lock, flags); + mc->intr = true; + gp100_mc_intr_update(mc); + spin_unlock_irqrestore(&mc->lock, flags); +} + +void +gp100_mc_intr_mask(struct nvkm_mc *base, u32 mask, u32 intr) +{ + struct gp100_mc *mc = gp100_mc(base); + unsigned long flags; + spin_lock_irqsave(&mc->lock, flags); + mc->mask = (mc->mask & ~mask) | intr; + gp100_mc_intr_update(mc); + spin_unlock_irqrestore(&mc->lock, flags); +} + +const struct nvkm_mc_map +gp100_mc_intr[] = { + { 0x04000000, NVKM_ENGINE_DISP }, + { 0x00000100, NVKM_ENGINE_FIFO }, + { 0x00000200, NVKM_SUBDEV_FAULT }, + { 0x40000000, NVKM_SUBDEV_PRIVRING }, + { 0x10000000, NVKM_SUBDEV_BUS }, + { 0x08000000, NVKM_SUBDEV_FB }, + { 0x02000000, NVKM_SUBDEV_LTC }, + { 0x01000000, NVKM_SUBDEV_PMU }, + { 0x00200000, NVKM_SUBDEV_GPIO }, + { 0x00200000, NVKM_SUBDEV_I2C }, + { 0x00100000, NVKM_SUBDEV_TIMER }, + { 0x00040000, NVKM_SUBDEV_THERM }, + { 0x00002000, NVKM_SUBDEV_FB }, + {}, +}; + +static const struct nvkm_mc_func +gp100_mc = { + .init = nv50_mc_init, + .intr = gp100_mc_intr, + .intr_unarm = gp100_mc_intr_unarm, + .intr_rearm = gp100_mc_intr_rearm, + .intr_mask = gp100_mc_intr_mask, + .intr_stat = gf100_mc_intr_stat, + .reset = gk104_mc_reset, +}; + +int +gp100_mc_new_(const struct nvkm_mc_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) +{ + struct gp100_mc *mc; + + if (!(mc = kzalloc(sizeof(*mc), GFP_KERNEL))) + return -ENOMEM; + nvkm_mc_ctor(func, device, type, inst, &mc->base); + *pmc = &mc->base; + + spin_lock_init(&mc->lock); + mc->intr = false; + mc->mask = 0x7fffffff; + return 0; +} + +int +gp100_mc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_mc **pmc) +{ + return gp100_mc_new_(&gp100_mc, device, type, inst, pmc); +} |