| /* |
| * 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 |
| */ |
| #include "nv50.h" |
| #include "ram.h" |
| |
| #include <core/client.h> |
| #include <core/enum.h> |
| #include <engine/fifo.h> |
| |
| static int |
| nv50_fb_ram_new(struct nvkm_fb *base, struct nvkm_ram **pram) |
| { |
| struct nv50_fb *fb = nv50_fb(base); |
| return fb->func->ram_new(&fb->base, pram); |
| } |
| |
| static const struct nvkm_enum vm_dispatch_subclients[] = { |
| { 0x00000000, "GRCTX" }, |
| { 0x00000001, "NOTIFY" }, |
| { 0x00000002, "QUERY" }, |
| { 0x00000003, "COND" }, |
| { 0x00000004, "M2M_IN" }, |
| { 0x00000005, "M2M_OUT" }, |
| { 0x00000006, "M2M_NOTIFY" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_ccache_subclients[] = { |
| { 0x00000000, "CB" }, |
| { 0x00000001, "TIC" }, |
| { 0x00000002, "TSC" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_prop_subclients[] = { |
| { 0x00000000, "RT0" }, |
| { 0x00000001, "RT1" }, |
| { 0x00000002, "RT2" }, |
| { 0x00000003, "RT3" }, |
| { 0x00000004, "RT4" }, |
| { 0x00000005, "RT5" }, |
| { 0x00000006, "RT6" }, |
| { 0x00000007, "RT7" }, |
| { 0x00000008, "ZETA" }, |
| { 0x00000009, "LOCAL" }, |
| { 0x0000000a, "GLOBAL" }, |
| { 0x0000000b, "STACK" }, |
| { 0x0000000c, "DST2D" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_pfifo_subclients[] = { |
| { 0x00000000, "PUSHBUF" }, |
| { 0x00000001, "SEMAPHORE" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_bar_subclients[] = { |
| { 0x00000000, "FB" }, |
| { 0x00000001, "IN" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_client[] = { |
| { 0x00000000, "STRMOUT" }, |
| { 0x00000003, "DISPATCH", vm_dispatch_subclients }, |
| { 0x00000004, "PFIFO_WRITE" }, |
| { 0x00000005, "CCACHE", vm_ccache_subclients }, |
| { 0x00000006, "PMSPPP" }, |
| { 0x00000007, "CLIPID" }, |
| { 0x00000008, "PFIFO_READ" }, |
| { 0x00000009, "VFETCH" }, |
| { 0x0000000a, "TEXTURE" }, |
| { 0x0000000b, "PROP", vm_prop_subclients }, |
| { 0x0000000c, "PVP" }, |
| { 0x0000000d, "PBSP" }, |
| { 0x0000000e, "PCRYPT" }, |
| { 0x0000000f, "PCOUNTER" }, |
| { 0x00000011, "PDAEMON" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_engine[] = { |
| { 0x00000000, "PGRAPH" }, |
| { 0x00000001, "PVP" }, |
| { 0x00000004, "PEEPHOLE" }, |
| { 0x00000005, "PFIFO", vm_pfifo_subclients }, |
| { 0x00000006, "BAR", vm_bar_subclients }, |
| { 0x00000008, "PMSPPP" }, |
| { 0x00000008, "PMPEG" }, |
| { 0x00000009, "PBSP" }, |
| { 0x0000000a, "PCRYPT" }, |
| { 0x0000000b, "PCOUNTER" }, |
| { 0x0000000c, "SEMAPHORE_BG" }, |
| { 0x0000000d, "PCE0" }, |
| { 0x0000000e, "PMU" }, |
| {} |
| }; |
| |
| static const struct nvkm_enum vm_fault[] = { |
| { 0x00000000, "PT_NOT_PRESENT" }, |
| { 0x00000001, "PT_TOO_SHORT" }, |
| { 0x00000002, "PAGE_NOT_PRESENT" }, |
| { 0x00000003, "PAGE_SYSTEM_ONLY" }, |
| { 0x00000004, "PAGE_READ_ONLY" }, |
| { 0x00000006, "NULL_DMAOBJ" }, |
| { 0x00000007, "WRONG_MEMTYPE" }, |
| { 0x0000000b, "VRAM_LIMIT" }, |
| { 0x0000000f, "DMAOBJ_LIMIT" }, |
| {} |
| }; |
| |
| static void |
| nv50_fb_intr(struct nvkm_fb *base) |
| { |
| struct nv50_fb *fb = nv50_fb(base); |
| struct nvkm_subdev *subdev = &fb->base.subdev; |
| struct nvkm_device *device = subdev->device; |
| struct nvkm_fifo *fifo = device->fifo; |
| struct nvkm_fifo_chan *chan; |
| const struct nvkm_enum *en, *re, *cl, *sc; |
| u32 trap[6], idx, inst; |
| u8 st0, st1, st2, st3; |
| unsigned long flags; |
| int i; |
| |
| idx = nvkm_rd32(device, 0x100c90); |
| if (!(idx & 0x80000000)) |
| return; |
| idx &= 0x00ffffff; |
| |
| for (i = 0; i < 6; i++) { |
| nvkm_wr32(device, 0x100c90, idx | i << 24); |
| trap[i] = nvkm_rd32(device, 0x100c94); |
| } |
| nvkm_wr32(device, 0x100c90, idx | 0x80000000); |
| |
| /* decode status bits into something more useful */ |
| if (device->chipset < 0xa3 || |
| device->chipset == 0xaa || device->chipset == 0xac) { |
| st0 = (trap[0] & 0x0000000f) >> 0; |
| st1 = (trap[0] & 0x000000f0) >> 4; |
| st2 = (trap[0] & 0x00000f00) >> 8; |
| st3 = (trap[0] & 0x0000f000) >> 12; |
| } else { |
| st0 = (trap[0] & 0x000000ff) >> 0; |
| st1 = (trap[0] & 0x0000ff00) >> 8; |
| st2 = (trap[0] & 0x00ff0000) >> 16; |
| st3 = (trap[0] & 0xff000000) >> 24; |
| } |
| inst = ((trap[2] << 16) | trap[1]) << 12; |
| |
| en = nvkm_enum_find(vm_engine, st0); |
| re = nvkm_enum_find(vm_fault , st1); |
| cl = nvkm_enum_find(vm_client, st2); |
| if (cl && cl->data) sc = nvkm_enum_find(cl->data, st3); |
| else if (en && en->data) sc = nvkm_enum_find(en->data, st3); |
| else sc = NULL; |
| |
| chan = nvkm_fifo_chan_inst(fifo, inst, &flags); |
| nvkm_error(subdev, "trapped %s at %02x%04x%04x on channel %d [%08x %s] " |
| "engine %02x [%s] client %02x [%s] " |
| "subclient %02x [%s] reason %08x [%s]\n", |
| (trap[5] & 0x00000100) ? "read" : "write", |
| trap[5] & 0xff, trap[4] & 0xffff, trap[3] & 0xffff, |
| chan ? chan->chid : -1, inst, |
| chan ? chan->object.client->name : "unknown", |
| st0, en ? en->name : "", |
| st2, cl ? cl->name : "", st3, sc ? sc->name : "", |
| st1, re ? re->name : ""); |
| nvkm_fifo_chan_put(fifo, flags, &chan); |
| } |
| |
| static int |
| nv50_fb_oneinit(struct nvkm_fb *base) |
| { |
| struct nv50_fb *fb = nv50_fb(base); |
| struct nvkm_device *device = fb->base.subdev.device; |
| |
| fb->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
| if (fb->r100c08_page) { |
| fb->r100c08 = dma_map_page(device->dev, fb->r100c08_page, 0, |
| PAGE_SIZE, DMA_BIDIRECTIONAL); |
| if (dma_mapping_error(device->dev, fb->r100c08)) |
| return -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| static void |
| nv50_fb_init(struct nvkm_fb *base) |
| { |
| struct nv50_fb *fb = nv50_fb(base); |
| struct nvkm_device *device = fb->base.subdev.device; |
| |
| /* Not a clue what this is exactly. Without pointing it at a |
| * scratch page, VRAM->GART blits with M2MF (as in DDX DFS) |
| * cause IOMMU "read from address 0" errors (rh#561267) |
| */ |
| nvkm_wr32(device, 0x100c08, fb->r100c08 >> 8); |
| |
| /* This is needed to get meaningful information from 100c90 |
| * on traps. No idea what these values mean exactly. */ |
| nvkm_wr32(device, 0x100c90, fb->func->trap); |
| } |
| |
| static u32 |
| nv50_fb_tags(struct nvkm_fb *base) |
| { |
| struct nv50_fb *fb = nv50_fb(base); |
| if (fb->func->tags) |
| return fb->func->tags(&fb->base); |
| return 0; |
| } |
| |
| static void * |
| nv50_fb_dtor(struct nvkm_fb *base) |
| { |
| struct nv50_fb *fb = nv50_fb(base); |
| struct nvkm_device *device = fb->base.subdev.device; |
| |
| if (fb->r100c08_page) { |
| dma_unmap_page(device->dev, fb->r100c08, PAGE_SIZE, |
| DMA_BIDIRECTIONAL); |
| __free_page(fb->r100c08_page); |
| } |
| |
| return fb; |
| } |
| |
| static const struct nvkm_fb_func |
| nv50_fb_ = { |
| .dtor = nv50_fb_dtor, |
| .tags = nv50_fb_tags, |
| .oneinit = nv50_fb_oneinit, |
| .init = nv50_fb_init, |
| .intr = nv50_fb_intr, |
| .ram_new = nv50_fb_ram_new, |
| }; |
| |
| int |
| nv50_fb_new_(const struct nv50_fb_func *func, struct nvkm_device *device, |
| int index, struct nvkm_fb **pfb) |
| { |
| struct nv50_fb *fb; |
| |
| if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL))) |
| return -ENOMEM; |
| nvkm_fb_ctor(&nv50_fb_, device, index, &fb->base); |
| fb->func = func; |
| *pfb = &fb->base; |
| |
| return 0; |
| } |
| |
| static const struct nv50_fb_func |
| nv50_fb = { |
| .ram_new = nv50_ram_new, |
| .tags = nv20_fb_tags, |
| .trap = 0x000707ff, |
| }; |
| |
| int |
| nv50_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb) |
| { |
| return nv50_fb_new_(&nv50_fb, device, index, pfb); |
| } |