cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/mc/gp100.c

/*
 * 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); } }

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Ben Skeggs85100.00%1100.00%
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static 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); }

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Ben Skeggs56100.00%1100.00%
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static 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); }

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PersonTokensPropCommitsCommitProp
Ben Skeggs56100.00%1100.00%
Total56100.00%1100.00%


static 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); }

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Ben Skeggs71100.00%1100.00%
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static const struct nvkm_mc_func gp100_mc = { .init = nv50_mc_init, .intr = gk104_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(struct nvkm_device *device, int index, struct nvkm_mc **pmc) { struct gp100_mc *mc; if (!(mc = kzalloc(sizeof(*mc), GFP_KERNEL))) return -ENOMEM; nvkm_mc_ctor(&gp100_mc, device, index, &mc->base); *pmc = &mc->base; spin_lock_init(&mc->lock); mc->intr = false; mc->mask = 0x7fffffff; return 0; }

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Ben Skeggs92100.00%1100.00%
Total92100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs432100.00%1100.00%
Total432100.00%1100.00%
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