cregit-Linux how code gets into the kernel

Release 4.11 drivers/gpu/drm/nouveau/nvkm/engine/gr/nv20.c

#include "nv20.h"
#include "regs.h"

#include <core/client.h>
#include <core/gpuobj.h>
#include <engine/fifo.h>
#include <engine/fifo/chan.h>
#include <subdev/fb.h>
#include <subdev/timer.h>

/*******************************************************************************
 * PGRAPH context
 ******************************************************************************/


int nv20_gr_chan_init(struct nvkm_object *object) { struct nv20_gr_chan *chan = nv20_gr_chan(object); struct nv20_gr *gr = chan->gr; u32 inst = nvkm_memory_addr(chan->inst); nvkm_kmap(gr->ctxtab); nvkm_wo32(gr->ctxtab, chan->chid * 4, inst >> 4); nvkm_done(gr->ctxtab); return 0; }

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int nv20_gr_chan_fini(struct nvkm_object *object, bool suspend) { struct nv20_gr_chan *chan = nv20_gr_chan(object); struct nv20_gr *gr = chan->gr; struct nvkm_device *device = gr->base.engine.subdev.device; u32 inst = nvkm_memory_addr(chan->inst); int chid = -1; nvkm_mask(device, 0x400720, 0x00000001, 0x00000000); if (nvkm_rd32(device, 0x400144) & 0x00010000) chid = (nvkm_rd32(device, 0x400148) & 0x1f000000) >> 24; if (chan->chid == chid) { nvkm_wr32(device, 0x400784, inst >> 4); nvkm_wr32(device, 0x400788, 0x00000002); nvkm_msec(device, 2000, if (!nvkm_rd32(device, 0x400700)) break; ); nvkm_wr32(device, 0x400144, 0x10000000); nvkm_mask(device, 0x400148, 0xff000000, 0x1f000000); } nvkm_mask(device, 0x400720, 0x00000001, 0x00000001); nvkm_kmap(gr->ctxtab); nvkm_wo32(gr->ctxtab, chan->chid * 4, 0x00000000); nvkm_done(gr->ctxtab); return 0; }

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void * nv20_gr_chan_dtor(struct nvkm_object *object) { struct nv20_gr_chan *chan = nv20_gr_chan(object); nvkm_memory_del(&chan->inst); return chan; }

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static const struct nvkm_object_func nv20_gr_chan = { .dtor = nv20_gr_chan_dtor, .init = nv20_gr_chan_init, .fini = nv20_gr_chan_fini, };
static int nv20_gr_chan_new(struct nvkm_gr *base, struct nvkm_fifo_chan *fifoch, const struct nvkm_oclass *oclass, struct nvkm_object **pobject) { struct nv20_gr *gr = nv20_gr(base); struct nv20_gr_chan *chan; int ret, i; if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL))) return -ENOMEM; nvkm_object_ctor(&nv20_gr_chan, oclass, &chan->object); chan->gr = gr; chan->chid = fifoch->chid; *pobject = &chan->object; ret = nvkm_memory_new(gr->base.engine.subdev.device, NVKM_MEM_TARGET_INST, 0x37f0, 16, true, &chan->inst); if (ret) return ret; nvkm_kmap(chan->inst); nvkm_wo32(chan->inst, 0x0000, 0x00000001 | (chan->chid << 24)); nvkm_wo32(chan->inst, 0x033c, 0xffff0000); nvkm_wo32(chan->inst, 0x03a0, 0x0fff0000); nvkm_wo32(chan->inst, 0x03a4, 0x0fff0000); nvkm_wo32(chan->inst, 0x047c, 0x00000101); nvkm_wo32(chan->inst, 0x0490, 0x00000111); nvkm_wo32(chan->inst, 0x04a8, 0x44400000); for (i = 0x04d4; i <= 0x04e0; i += 4) nvkm_wo32(chan->inst, i, 0x00030303); for (i = 0x04f4; i <= 0x0500; i += 4) nvkm_wo32(chan->inst, i, 0x00080000); for (i = 0x050c; i <= 0x0518; i += 4) nvkm_wo32(chan->inst, i, 0x01012000); for (i = 0x051c; i <= 0x0528; i += 4) nvkm_wo32(chan->inst, i, 0x000105b8); for (i = 0x052c; i <= 0x0538; i += 4) nvkm_wo32(chan->inst, i, 0x00080008); for (i = 0x055c; i <= 0x0598; i += 4) nvkm_wo32(chan->inst, i, 0x07ff0000); nvkm_wo32(chan->inst, 0x05a4, 0x4b7fffff); nvkm_wo32(chan->inst, 0x05fc, 0x00000001); nvkm_wo32(chan->inst, 0x0604, 0x00004000); nvkm_wo32(chan->inst, 0x0610, 0x00000001); nvkm_wo32(chan->inst, 0x0618, 0x00040000); nvkm_wo32(chan->inst, 0x061c, 0x00010000); for (i = 0x1c1c; i <= 0x248c; i += 16) { nvkm_wo32(chan->inst, (i + 0), 0x10700ff9); nvkm_wo32(chan->inst, (i + 4), 0x0436086c); nvkm_wo32(chan->inst, (i + 8), 0x000c001b); } nvkm_wo32(chan->inst, 0x281c, 0x3f800000); nvkm_wo32(chan->inst, 0x2830, 0x3f800000); nvkm_wo32(chan->inst, 0x285c, 0x40000000); nvkm_wo32(chan->inst, 0x2860, 0x3f800000); nvkm_wo32(chan->inst, 0x2864, 0x3f000000); nvkm_wo32(chan->inst, 0x286c, 0x40000000); nvkm_wo32(chan->inst, 0x2870, 0x3f800000); nvkm_wo32(chan->inst, 0x2878, 0xbf800000); nvkm_wo32(chan->inst, 0x2880, 0xbf800000); nvkm_wo32(chan->inst, 0x34a4, 0x000fe000); nvkm_wo32(chan->inst, 0x3530, 0x000003f8); nvkm_wo32(chan->inst, 0x3540, 0x002fe000); for (i = 0x355c; i <= 0x3578; i += 4) nvkm_wo32(chan->inst, i, 0x001c527c); nvkm_done(chan->inst); return 0; }

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/******************************************************************************* * PGRAPH engine/subdev functions ******************************************************************************/
void nv20_gr_tile(struct nvkm_gr *base, int i, struct nvkm_fb_tile *tile) { struct nv20_gr *gr = nv20_gr(base); struct nvkm_device *device = gr->base.engine.subdev.device; struct nvkm_fifo *fifo = device->fifo; unsigned long flags; nvkm_fifo_pause(fifo, &flags); nv04_gr_idle(&gr->base); nvkm_wr32(device, NV20_PGRAPH_TLIMIT(i), tile->limit); nvkm_wr32(device, NV20_PGRAPH_TSIZE(i), tile->pitch); nvkm_wr32(device, NV20_PGRAPH_TILE(i), tile->addr); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00EA0030 + 4 * i); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, tile->limit); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00EA0050 + 4 * i); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, tile->pitch); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00EA0010 + 4 * i); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, tile->addr); if (device->chipset != 0x34) { nvkm_wr32(device, NV20_PGRAPH_ZCOMP(i), tile->zcomp); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00ea0090 + 4 * i); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, tile->zcomp); } nvkm_fifo_start(fifo, &flags); }

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void nv20_gr_intr(struct nvkm_gr *base) { struct nv20_gr *gr = nv20_gr(base); struct nvkm_subdev *subdev = &gr->base.engine.subdev; struct nvkm_device *device = subdev->device; struct nvkm_fifo_chan *chan; u32 stat = nvkm_rd32(device, NV03_PGRAPH_INTR); u32 nsource = nvkm_rd32(device, NV03_PGRAPH_NSOURCE); u32 nstatus = nvkm_rd32(device, NV03_PGRAPH_NSTATUS); u32 addr = nvkm_rd32(device, NV04_PGRAPH_TRAPPED_ADDR); u32 chid = (addr & 0x01f00000) >> 20; u32 subc = (addr & 0x00070000) >> 16; u32 mthd = (addr & 0x00001ffc); u32 data = nvkm_rd32(device, NV04_PGRAPH_TRAPPED_DATA); u32 class = nvkm_rd32(device, 0x400160 + subc * 4) & 0xfff; u32 show = stat; char msg[128], src[128], sta[128]; unsigned long flags; chan = nvkm_fifo_chan_chid(device->fifo, chid, &flags); nvkm_wr32(device, NV03_PGRAPH_INTR, stat); nvkm_wr32(device, NV04_PGRAPH_FIFO, 0x00000001); if (show) { nvkm_snprintbf(msg, sizeof(msg), nv10_gr_intr_name, show); nvkm_snprintbf(src, sizeof(src), nv04_gr_nsource, nsource); nvkm_snprintbf(sta, sizeof(sta), nv10_gr_nstatus, nstatus); nvkm_error(subdev, "intr %08x [%s] nsource %08x [%s] " "nstatus %08x [%s] ch %d [%s] subc %d " "class %04x mthd %04x data %08x\n", show, msg, nsource, src, nstatus, sta, chid, chan ? chan->object.client->name : "unknown", subc, class, mthd, data); } nvkm_fifo_chan_put(device->fifo, flags, &chan); }

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int nv20_gr_oneinit(struct nvkm_gr *base) { struct nv20_gr *gr = nv20_gr(base); return nvkm_memory_new(gr->base.engine.subdev.device, NVKM_MEM_TARGET_INST, 32 * 4, 16, true, &gr->ctxtab); }

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int nv20_gr_init(struct nvkm_gr *base) { struct nv20_gr *gr = nv20_gr(base); struct nvkm_device *device = gr->base.engine.subdev.device; u32 tmp, vramsz; int i; nvkm_wr32(device, NV20_PGRAPH_CHANNEL_CTX_TABLE, nvkm_memory_addr(gr->ctxtab) >> 4); if (device->chipset == 0x20) { nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x003d0000); for (i = 0; i < 15; i++) nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, 0x00000000); nvkm_msec(device, 2000, if (!nvkm_rd32(device, 0x400700)) break; ); } else { nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x02c80000); for (i = 0; i < 32; i++) nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, 0x00000000); nvkm_msec(device, 2000, if (!nvkm_rd32(device, 0x400700)) break; ); } nvkm_wr32(device, NV03_PGRAPH_INTR , 0xFFFFFFFF); nvkm_wr32(device, NV03_PGRAPH_INTR_EN, 0xFFFFFFFF); nvkm_wr32(device, NV04_PGRAPH_DEBUG_0, 0xFFFFFFFF); nvkm_wr32(device, NV04_PGRAPH_DEBUG_0, 0x00000000); nvkm_wr32(device, NV04_PGRAPH_DEBUG_1, 0x00118700); nvkm_wr32(device, NV04_PGRAPH_DEBUG_3, 0xF3CE0475); /* 0x4 = auto ctx switch */ nvkm_wr32(device, NV10_PGRAPH_DEBUG_4, 0x00000000); nvkm_wr32(device, 0x40009C , 0x00000040); if (device->chipset >= 0x25) { nvkm_wr32(device, 0x400890, 0x00a8cfff); nvkm_wr32(device, 0x400610, 0x304B1FB6); nvkm_wr32(device, 0x400B80, 0x1cbd3883); nvkm_wr32(device, 0x400B84, 0x44000000); nvkm_wr32(device, 0x400098, 0x40000080); nvkm_wr32(device, 0x400B88, 0x000000ff); } else { nvkm_wr32(device, 0x400880, 0x0008c7df); nvkm_wr32(device, 0x400094, 0x00000005); nvkm_wr32(device, 0x400B80, 0x45eae20e); nvkm_wr32(device, 0x400B84, 0x24000000); nvkm_wr32(device, 0x400098, 0x00000040); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00E00038); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA , 0x00000030); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00E10038); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA , 0x00000030); } nvkm_wr32(device, 0x4009a0, nvkm_rd32(device, 0x100324)); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00EA000C); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA, nvkm_rd32(device, 0x100324)); nvkm_wr32(device, NV10_PGRAPH_CTX_CONTROL, 0x10000100); nvkm_wr32(device, NV10_PGRAPH_STATE , 0xFFFFFFFF); tmp = nvkm_rd32(device, NV10_PGRAPH_SURFACE) & 0x0007ff00; nvkm_wr32(device, NV10_PGRAPH_SURFACE, tmp); tmp = nvkm_rd32(device, NV10_PGRAPH_SURFACE) | 0x00020100; nvkm_wr32(device, NV10_PGRAPH_SURFACE, tmp); /* begin RAM config */ vramsz = device->func->resource_size(device, 1) - 1; nvkm_wr32(device, 0x4009A4, nvkm_rd32(device, 0x100200)); nvkm_wr32(device, 0x4009A8, nvkm_rd32(device, 0x100204)); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00EA0000); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA , nvkm_rd32(device, 0x100200)); nvkm_wr32(device, NV10_PGRAPH_RDI_INDEX, 0x00EA0004); nvkm_wr32(device, NV10_PGRAPH_RDI_DATA , nvkm_rd32(device, 0x100204)); nvkm_wr32(device, 0x400820, 0); nvkm_wr32(device, 0x400824, 0); nvkm_wr32(device, 0x400864, vramsz - 1); nvkm_wr32(device, 0x400868, vramsz - 1); /* interesting.. the below overwrites some of the tile setup above.. */ nvkm_wr32(device, 0x400B20, 0x00000000); nvkm_wr32(device, 0x400B04, 0xFFFFFFFF); nvkm_wr32(device, NV03_PGRAPH_ABS_UCLIP_XMIN, 0); nvkm_wr32(device, NV03_PGRAPH_ABS_UCLIP_YMIN, 0); nvkm_wr32(device, NV03_PGRAPH_ABS_UCLIP_XMAX, 0x7fff); nvkm_wr32(device, NV03_PGRAPH_ABS_UCLIP_YMAX, 0x7fff); return 0; }

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void * nv20_gr_dtor(struct nvkm_gr *base) { struct nv20_gr *gr = nv20_gr(base); nvkm_memory_del(&gr->ctxtab); return gr; }

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int nv20_gr_new_(const struct nvkm_gr_func *func, struct nvkm_device *device, int index, struct nvkm_gr **pgr) { struct nv20_gr *gr; if (!(gr = kzalloc(sizeof(*gr), GFP_KERNEL))) return -ENOMEM; *pgr = &gr->base; return nvkm_gr_ctor(func, device, index, true, &gr->base); }

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static const struct nvkm_gr_func nv20_gr = { .dtor = nv20_gr_dtor, .oneinit = nv20_gr_oneinit, .init = nv20_gr_init, .intr = nv20_gr_intr, .tile = nv20_gr_tile, .chan_new = nv20_gr_chan_new, .sclass = { { -1, -1, 0x0012, &nv04_gr_object }, /* beta1 */ { -1, -1, 0x0019, &nv04_gr_object }, /* clip */ { -1, -1, 0x0030, &nv04_gr_object }, /* null */ { -1, -1, 0x0039, &nv04_gr_object }, /* m2mf */ { -1, -1, 0x0043, &nv04_gr_object }, /* rop */ { -1, -1, 0x0044, &nv04_gr_object }, /* patt */ { -1, -1, 0x004a, &nv04_gr_object }, /* gdi */ { -1, -1, 0x0062, &nv04_gr_object }, /* surf2d */ { -1, -1, 0x0072, &nv04_gr_object }, /* beta4 */ { -1, -1, 0x0089, &nv04_gr_object }, /* sifm */ { -1, -1, 0x008a, &nv04_gr_object }, /* ifc */ { -1, -1, 0x0096, &nv04_gr_object }, /* celcius */ { -1, -1, 0x0097, &nv04_gr_object }, /* kelvin */ { -1, -1, 0x009e, &nv04_gr_object }, /* swzsurf */ { -1, -1, 0x009f, &nv04_gr_object }, /* imageblit */ {} } };
int nv20_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr) { return nv20_gr_new_(&nv20_gr, device, index, pgr); }

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Ben Skeggs267099.40%2488.89%
Francisco Jerez70.26%13.70%
Jesper Juhl60.22%13.70%
Marcin Ślusarz30.11%13.70%
Total2686100.00%27100.00%
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