--- /dev/null
+/*
+ * 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 <core/client.h>
+#include <core/device.h>
+#include <core/engctx.h>
+#include <core/enum.h>
+
+int
+nv50_fb_memtype[0x80] = {
+ 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 0, 0, 0, 0, 2, 2, 2, 2, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 2, 2, 2, 2, 2, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 0, 0,
+ 0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+ 1, 0, 2, 0, 1, 0, 2, 0, 1, 1, 2, 2, 1, 1, 0, 0
+};
+
+bool
+nv50_fb_memtype_valid(struct nvkm_fb *pfb, u32 memtype)
+{
+ return nv50_fb_memtype[(memtype & 0xff00) >> 8] != 0;
+}
+
+static const struct nvkm_enum vm_dispatch_subclients[] = {
+ { 0x00000000, "GRCTX", NULL },
+ { 0x00000001, "NOTIFY", NULL },
+ { 0x00000002, "QUERY", NULL },
+ { 0x00000003, "COND", NULL },
+ { 0x00000004, "M2M_IN", NULL },
+ { 0x00000005, "M2M_OUT", NULL },
+ { 0x00000006, "M2M_NOTIFY", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_ccache_subclients[] = {
+ { 0x00000000, "CB", NULL },
+ { 0x00000001, "TIC", NULL },
+ { 0x00000002, "TSC", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_prop_subclients[] = {
+ { 0x00000000, "RT0", NULL },
+ { 0x00000001, "RT1", NULL },
+ { 0x00000002, "RT2", NULL },
+ { 0x00000003, "RT3", NULL },
+ { 0x00000004, "RT4", NULL },
+ { 0x00000005, "RT5", NULL },
+ { 0x00000006, "RT6", NULL },
+ { 0x00000007, "RT7", NULL },
+ { 0x00000008, "ZETA", NULL },
+ { 0x00000009, "LOCAL", NULL },
+ { 0x0000000a, "GLOBAL", NULL },
+ { 0x0000000b, "STACK", NULL },
+ { 0x0000000c, "DST2D", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_pfifo_subclients[] = {
+ { 0x00000000, "PUSHBUF", NULL },
+ { 0x00000001, "SEMAPHORE", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_bar_subclients[] = {
+ { 0x00000000, "FB", NULL },
+ { 0x00000001, "IN", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_client[] = {
+ { 0x00000000, "STRMOUT", NULL },
+ { 0x00000003, "DISPATCH", vm_dispatch_subclients },
+ { 0x00000004, "PFIFO_WRITE", NULL },
+ { 0x00000005, "CCACHE", vm_ccache_subclients },
+ { 0x00000006, "PMSPPP", NULL },
+ { 0x00000007, "CLIPID", NULL },
+ { 0x00000008, "PFIFO_READ", NULL },
+ { 0x00000009, "VFETCH", NULL },
+ { 0x0000000a, "TEXTURE", NULL },
+ { 0x0000000b, "PROP", vm_prop_subclients },
+ { 0x0000000c, "PVP", NULL },
+ { 0x0000000d, "PBSP", NULL },
+ { 0x0000000e, "PCRYPT", NULL },
+ { 0x0000000f, "PCOUNTER", NULL },
+ { 0x00000011, "PDAEMON", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_engine[] = {
+ { 0x00000000, "PGRAPH", NULL, NVDEV_ENGINE_GR },
+ { 0x00000001, "PVP", NULL, NVDEV_ENGINE_VP },
+ { 0x00000004, "PEEPHOLE", NULL },
+ { 0x00000005, "PFIFO", vm_pfifo_subclients, NVDEV_ENGINE_FIFO },
+ { 0x00000006, "BAR", vm_bar_subclients },
+ { 0x00000008, "PMSPPP", NULL, NVDEV_ENGINE_MSPPP },
+ { 0x00000008, "PMPEG", NULL, NVDEV_ENGINE_MPEG },
+ { 0x00000009, "PBSP", NULL, NVDEV_ENGINE_BSP },
+ { 0x0000000a, "PCRYPT", NULL, NVDEV_ENGINE_CIPHER },
+ { 0x0000000b, "PCOUNTER", NULL },
+ { 0x0000000c, "SEMAPHORE_BG", NULL },
+ { 0x0000000d, "PCE0", NULL, NVDEV_ENGINE_CE0 },
+ { 0x0000000e, "PDAEMON", NULL },
+ {}
+};
+
+static const struct nvkm_enum vm_fault[] = {
+ { 0x00000000, "PT_NOT_PRESENT", NULL },
+ { 0x00000001, "PT_TOO_SHORT", NULL },
+ { 0x00000002, "PAGE_NOT_PRESENT", NULL },
+ { 0x00000003, "PAGE_SYSTEM_ONLY", NULL },
+ { 0x00000004, "PAGE_READ_ONLY", NULL },
+ { 0x00000006, "NULL_DMAOBJ", NULL },
+ { 0x00000007, "WRONG_MEMTYPE", NULL },
+ { 0x0000000b, "VRAM_LIMIT", NULL },
+ { 0x0000000f, "DMAOBJ_LIMIT", NULL },
+ {}
+};
+
+static void
+nv50_fb_intr(struct nvkm_subdev *subdev)
+{
+ struct nvkm_device *device = nv_device(subdev);
+ struct nvkm_engine *engine;
+ struct nv50_fb_priv *priv = (void *)subdev;
+ const struct nvkm_enum *en, *cl;
+ struct nvkm_object *engctx = NULL;
+ u32 trap[6], idx, chan;
+ u8 st0, st1, st2, st3;
+ int i;
+
+ idx = nv_rd32(priv, 0x100c90);
+ if (!(idx & 0x80000000))
+ return;
+ idx &= 0x00ffffff;
+
+ for (i = 0; i < 6; i++) {
+ nv_wr32(priv, 0x100c90, idx | i << 24);
+ trap[i] = nv_rd32(priv, 0x100c94);
+ }
+ nv_wr32(priv, 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;
+ }
+ chan = (trap[2] << 16) | trap[1];
+
+ en = nvkm_enum_find(vm_engine, st0);
+
+ if (en && en->data2) {
+ const struct nvkm_enum *orig_en = en;
+ while (en->name && en->value == st0 && en->data2) {
+ engine = nvkm_engine(subdev, en->data2);
+ /*XXX: clean this up */
+ if (!engine && en->data2 == NVDEV_ENGINE_BSP)
+ engine = nvkm_engine(subdev, NVDEV_ENGINE_MSVLD);
+ if (!engine && en->data2 == NVDEV_ENGINE_CIPHER)
+ engine = nvkm_engine(subdev, NVDEV_ENGINE_SEC);
+ if (!engine && en->data2 == NVDEV_ENGINE_VP)
+ engine = nvkm_engine(subdev, NVDEV_ENGINE_MSPDEC);
+ if (engine) {
+ engctx = nvkm_engctx_get(engine, chan);
+ if (engctx)
+ break;
+ }
+ en++;
+ }
+ if (!engctx)
+ en = orig_en;
+ }
+
+ nv_error(priv, "trapped %s at 0x%02x%04x%04x on channel 0x%08x [%s] ",
+ (trap[5] & 0x00000100) ? "read" : "write",
+ trap[5] & 0xff, trap[4] & 0xffff, trap[3] & 0xffff, chan,
+ nvkm_client_name(engctx));
+
+ nvkm_engctx_put(engctx);
+
+ if (en)
+ pr_cont("%s/", en->name);
+ else
+ pr_cont("%02x/", st0);
+
+ cl = nvkm_enum_find(vm_client, st2);
+ if (cl)
+ pr_cont("%s/", cl->name);
+ else
+ pr_cont("%02x/", st2);
+
+ if (cl && cl->data) cl = nvkm_enum_find(cl->data, st3);
+ else if (en && en->data) cl = nvkm_enum_find(en->data, st3);
+ else cl = NULL;
+ if (cl)
+ pr_cont("%s", cl->name);
+ else
+ pr_cont("%02x", st3);
+
+ pr_cont(" reason: ");
+ en = nvkm_enum_find(vm_fault, st1);
+ if (en)
+ pr_cont("%s\n", en->name);
+ else
+ pr_cont("0x%08x\n", st1);
+}
+
+int
+nv50_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+ struct nvkm_oclass *oclass, void *data, u32 size,
+ struct nvkm_object **pobject)
+{
+ struct nvkm_device *device = nv_device(parent);
+ struct nv50_fb_priv *priv;
+ int ret;
+
+ ret = nvkm_fb_create(parent, engine, oclass, &priv);
+ *pobject = nv_object(priv);
+ if (ret)
+ return ret;
+
+ priv->r100c08_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+ if (priv->r100c08_page) {
+ priv->r100c08 = dma_map_page(nv_device_base(device),
+ priv->r100c08_page, 0, PAGE_SIZE,
+ DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(nv_device_base(device), priv->r100c08))
+ return -EFAULT;
+ } else {
+ nv_warn(priv, "failed 0x100c08 page alloc\n");
+ }
+
+ nv_subdev(priv)->intr = nv50_fb_intr;
+ return 0;
+}
+
+void
+nv50_fb_dtor(struct nvkm_object *object)
+{
+ struct nvkm_device *device = nv_device(object);
+ struct nv50_fb_priv *priv = (void *)object;
+
+ if (priv->r100c08_page) {
+ dma_unmap_page(nv_device_base(device), priv->r100c08, PAGE_SIZE,
+ DMA_BIDIRECTIONAL);
+ __free_page(priv->r100c08_page);
+ }
+
+ nvkm_fb_destroy(&priv->base);
+}
+
+int
+nv50_fb_init(struct nvkm_object *object)
+{
+ struct nv50_fb_impl *impl = (void *)object->oclass;
+ struct nv50_fb_priv *priv = (void *)object;
+ int ret;
+
+ ret = nvkm_fb_init(&priv->base);
+ if (ret)
+ return ret;
+
+ /* 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)
+ */
+ nv_wr32(priv, 0x100c08, priv->r100c08 >> 8);
+
+ /* This is needed to get meaningful information from 100c90
+ * on traps. No idea what these values mean exactly. */
+ nv_wr32(priv, 0x100c90, impl->trap);
+ return 0;
+}
+
+struct nvkm_oclass *
+nv50_fb_oclass = &(struct nv50_fb_impl) {
+ .base.base.handle = NV_SUBDEV(FB, 0x50),
+ .base.base.ofuncs = &(struct nvkm_ofuncs) {
+ .ctor = nv50_fb_ctor,
+ .dtor = nv50_fb_dtor,
+ .init = nv50_fb_init,
+ .fini = _nvkm_fb_fini,
+ },
+ .base.memtype = nv50_fb_memtype_valid,
+ .base.ram = &nv50_ram_oclass,
+ .trap = 0x000707ff,
+}.base.base;
Code Review / kvmfornfv.git / blobdiff