cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv04.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 nv04_instmem(p) container_of((p), struct nv04_instmem, base)
#include "priv.h"

#include <core/memory.h>
#include <core/ramht.h>


struct nv04_instmem {
	
struct nvkm_instmem base;
	
struct nvkm_mm heap;
};

/******************************************************************************
 * instmem object implementation
 *****************************************************************************/

#define nv04_instobj(p) container_of((p), struct nv04_instobj, memory)


struct nv04_instobj {
	
struct nvkm_memory memory;
	
struct nv04_instmem *imem;
	
struct nvkm_mm_node *node;
};


static enum nvkm_memory_target nv04_instobj_target(struct nvkm_memory *memory) { return NVKM_MEM_TARGET_INST; }

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static u64 nv04_instobj_addr(struct nvkm_memory *memory) { return nv04_instobj(memory)->node->offset; }

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static u64 nv04_instobj_size(struct nvkm_memory *memory) { return nv04_instobj(memory)->node->length; }

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static void __iomem * nv04_instobj_acquire(struct nvkm_memory *memory) { struct nv04_instobj *iobj = nv04_instobj(memory); struct nvkm_device *device = iobj->imem->base.subdev.device; return device->pri + 0x700000 + iobj->node->offset; }

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static void nv04_instobj_release(struct nvkm_memory *memory) { }

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static u32 nv04_instobj_rd32(struct nvkm_memory *memory, u64 offset) { struct nv04_instobj *iobj = nv04_instobj(memory); struct nvkm_device *device = iobj->imem->base.subdev.device; return nvkm_rd32(device, 0x700000 + iobj->node->offset + offset); }

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static void nv04_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) { struct nv04_instobj *iobj = nv04_instobj(memory); struct nvkm_device *device = iobj->imem->base.subdev.device; nvkm_wr32(device, 0x700000 + iobj->node->offset + offset, data); }

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static void * nv04_instobj_dtor(struct nvkm_memory *memory) { struct nv04_instobj *iobj = nv04_instobj(memory); mutex_lock(&iobj->imem->base.subdev.mutex); nvkm_mm_free(&iobj->imem->heap, &iobj->node); mutex_unlock(&iobj->imem->base.subdev.mutex); return iobj; }

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Ben Skeggs5479.41%583.33%
Kamil Dudka1420.59%116.67%
Total68100.00%6100.00%

static const struct nvkm_memory_func nv04_instobj_func = { .dtor = nv04_instobj_dtor, .target = nv04_instobj_target, .size = nv04_instobj_size, .addr = nv04_instobj_addr, .acquire = nv04_instobj_acquire, .release = nv04_instobj_release, .rd32 = nv04_instobj_rd32, .wr32 = nv04_instobj_wr32, };
static int nv04_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero, struct nvkm_memory **pmemory) { struct nv04_instmem *imem = nv04_instmem(base); struct nv04_instobj *iobj; int ret; if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) return -ENOMEM; *pmemory = &iobj->memory; nvkm_memory_ctor(&nv04_instobj_func, &iobj->memory); iobj->imem = imem; mutex_lock(&imem->base.subdev.mutex); ret = nvkm_mm_head(&imem->heap, 0, 1, size, size, align ? align : 1, &iobj->node); mutex_unlock(&imem->base.subdev.mutex); return ret; }

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Ben Skeggs13390.48%1090.91%
Kamil Dudka149.52%19.09%
Total147100.00%11100.00%

/****************************************************************************** * instmem subdev implementation *****************************************************************************/
static u32 nv04_instmem_rd32(struct nvkm_instmem *imem, u32 addr) { return nvkm_rd32(imem->subdev.device, 0x700000 + addr); }

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static void nv04_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data) { nvkm_wr32(imem->subdev.device, 0x700000 + addr, data); }

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static int nv04_instmem_oneinit(struct nvkm_instmem *base) { struct nv04_instmem *imem = nv04_instmem(base); struct nvkm_device *device = imem->base.subdev.device; int ret; /* PRAMIN aperture maps over the end of VRAM, reserve it */ imem->base.reserved = 512 * 1024; ret = nvkm_mm_init(&imem->heap, 0, imem->base.reserved, 1); if (ret) return ret; /* 0x00000-0x10000: reserve for probable vbios image */ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x10000, 0, false, &imem->base.vbios); if (ret) return ret; /* 0x10000-0x18000: reserve for RAMHT */ ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht); if (ret) return ret; /* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00800, 0, true, &imem->base.ramfc); if (ret) return ret; /* 0x18800-0x18a00: reserve for RAMRO */ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00200, 0, false, &imem->base.ramro); if (ret) return ret; return 0; }

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Ben Skeggs19096.94%1493.33%
Younes Manton63.06%16.67%
Total196100.00%15100.00%


static void * nv04_instmem_dtor(struct nvkm_instmem *base) { struct nv04_instmem *imem = nv04_instmem(base); nvkm_memory_del(&imem->base.ramfc); nvkm_memory_del(&imem->base.ramro); nvkm_ramht_del(&imem->base.ramht); nvkm_memory_del(&imem->base.vbios); nvkm_mm_fini(&imem->heap); return imem; }

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Ben Skeggs73100.00%4100.00%
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static const struct nvkm_instmem_func nv04_instmem = { .dtor = nv04_instmem_dtor, .oneinit = nv04_instmem_oneinit, .rd32 = nv04_instmem_rd32, .wr32 = nv04_instmem_wr32, .memory_new = nv04_instobj_new, .persistent = false, .zero = false, };
int nv04_instmem_new(struct nvkm_device *device, int index, struct nvkm_instmem **pimem) { struct nv04_instmem *imem; if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL))) return -ENOMEM; nvkm_instmem_ctor(&nv04_instmem, device, index, &imem->base); *pimem = &imem->base; return 0; }

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Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs96396.59%1990.48%
Kamil Dudka282.81%14.76%
Younes Manton60.60%14.76%
Total997100.00%21100.00%
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