cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/subdev/instmem/nv40.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 nv40_instmem(p) container_of((p), struct nv40_instmem, base)
#include "priv.h"

#include <core/memory.h>
#include <core/ramht.h>
#include <engine/gr/nv40.h>


struct nv40_instmem {
	
struct nvkm_instmem base;
	
struct nvkm_mm heap;
	
void __iomem *iomem;
};

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

#define nv40_instobj(p) container_of((p), struct nv40_instobj, memory)


struct nv40_instobj {
	
struct nvkm_memory memory;
	
struct nv40_instmem *imem;
	
struct nvkm_mm_node *node;
};


static enum nvkm_memory_target nv40_instobj_target(struct nvkm_memory *memory) { return NVKM_MEM_TARGET_INST; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs15100.00%1100.00%
Total15100.00%1100.00%


static u64 nv40_instobj_addr(struct nvkm_memory *memory) { return nv40_instobj(memory)->node->offset; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs21100.00%1100.00%
Total21100.00%1100.00%


static u64 nv40_instobj_size(struct nvkm_memory *memory) { return nv40_instobj(memory)->node->length; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs21100.00%1100.00%
Total21100.00%1100.00%


static void __iomem * nv40_instobj_acquire(struct nvkm_memory *memory) { struct nv40_instobj *iobj = nv40_instobj(memory); return iobj->imem->iomem + iobj->node->offset; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs36100.00%1100.00%
Total36100.00%1100.00%


static void nv40_instobj_release(struct nvkm_memory *memory) { }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs10100.00%1100.00%
Total10100.00%1100.00%


static u32 nv40_instobj_rd32(struct nvkm_memory *memory, u64 offset) { struct nv40_instobj *iobj = nv40_instobj(memory); return ioread32_native(iobj->imem->iomem + iobj->node->offset + offset); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs42100.00%1100.00%
Total42100.00%1100.00%


static void nv40_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data) { struct nv40_instobj *iobj = nv40_instobj(memory); iowrite32_native(data, iobj->imem->iomem + iobj->node->offset + offset); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs46100.00%1100.00%
Total46100.00%1100.00%


static void * nv40_instobj_dtor(struct nvkm_memory *memory) { struct nv40_instobj *iobj = nv40_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; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs68100.00%1100.00%
Total68100.00%1100.00%

static const struct nvkm_memory_func nv40_instobj_func = { .dtor = nv40_instobj_dtor, .target = nv40_instobj_target, .size = nv40_instobj_size, .addr = nv40_instobj_addr, .acquire = nv40_instobj_acquire, .release = nv40_instobj_release, .rd32 = nv40_instobj_rd32, .wr32 = nv40_instobj_wr32, };
static int nv40_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero, struct nvkm_memory **pmemory) { struct nv40_instmem *imem = nv40_instmem(base); struct nv40_instobj *iobj; int ret; if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL))) return -ENOMEM; *pmemory = &iobj->memory; nvkm_memory_ctor(&nv40_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; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs147100.00%1100.00%
Total147100.00%1100.00%

/****************************************************************************** * instmem subdev implementation *****************************************************************************/
static u32 nv40_instmem_rd32(struct nvkm_instmem *base, u32 addr) { return ioread32_native(nv40_instmem(base)->iomem + addr); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs27100.00%3100.00%
Total27100.00%3100.00%


static void nv40_instmem_wr32(struct nvkm_instmem *base, u32 addr, u32 data) { iowrite32_native(data, nv40_instmem(base)->iomem + addr); }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs31100.00%3100.00%
Total31100.00%3100.00%


static int nv40_instmem_oneinit(struct nvkm_instmem *base) { struct nv40_instmem *imem = nv40_instmem(base); struct nvkm_device *device = imem->base.subdev.device; int ret, vs; /* PRAMIN aperture maps over the end of vram, reserve enough space * to fit graphics contexts for every channel, the magics come * from engine/gr/nv40.c */ vs = hweight8((nvkm_rd32(device, 0x001540) & 0x0000ff00) >> 8); if (device->chipset == 0x40) imem->base.reserved = 0x6aa0 * vs; else if (device->chipset < 0x43) imem->base.reserved = 0x4f00 * vs; else if (nv44_gr_class(device)) imem->base.reserved = 0x4980 * vs; else imem->base.reserved = 0x4a40 * vs; imem->base.reserved += 16 * 1024; imem->base.reserved *= 32; /* per-channel */ imem->base.reserved += 512 * 1024; /* pci(e)gart table */ imem->base.reserved += 512 * 1024; /* object storage */ imem->base.reserved = round_up(imem->base.reserved, 4096); 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; /* 0x18000-0x18200: reserve for RAMRO * 0x18200-0x20000: padding */ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x08000, 0, false, &imem->base.ramro); if (ret) return ret; /* 0x20000-0x21000: reserve for RAMFC * 0x21000-0x40000: padding and some unknown crap */ ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x20000, 0, true, &imem->base.ramfc); if (ret) return ret; return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs330100.00%13100.00%
Total330100.00%13100.00%


static void * nv40_instmem_dtor(struct nvkm_instmem *base) { struct nv40_instmem *imem = nv40_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); if (imem->iomem) iounmap(imem->iomem); return imem; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs86100.00%4100.00%
Total86100.00%4100.00%

static const struct nvkm_instmem_func nv40_instmem = { .dtor = nv40_instmem_dtor, .oneinit = nv40_instmem_oneinit, .rd32 = nv40_instmem_rd32, .wr32 = nv40_instmem_wr32, .memory_new = nv40_instobj_new, .persistent = false, .zero = false, };
int nv40_instmem_new(struct nvkm_device *device, int index, struct nvkm_instmem **pimem) { struct nv40_instmem *imem; int bar; if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL))) return -ENOMEM; nvkm_instmem_ctor(&nv40_instmem, device, index, &imem->base); *pimem = &imem->base; /* map bar */ if (device->func->resource_size(device, 2)) bar = 2; else bar = 3; imem->iomem = ioremap(device->func->resource_addr(device, bar), device->func->resource_size(device, bar)); if (!imem->iomem) { nvkm_error(&imem->base.subdev, "unable to map PRAMIN BAR\n"); return -EFAULT; } return 0; }

Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs152100.00%2100.00%
Total152100.00%2100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Ben Skeggs118799.83%1694.12%
Ilia Mirkin20.17%15.88%
Total1189100.00%17100.00%
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.
Created with cregit.