| /* |
| * 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. |
| */ |
| |
| #include <engine/falcon.h> |
| #include <subdev/timer.h> |
| |
| void |
| nouveau_falcon_intr(struct nouveau_subdev *subdev) |
| { |
| struct nouveau_falcon *falcon = (void *)subdev; |
| u32 dispatch = nv_ro32(falcon, 0x01c); |
| u32 intr = nv_ro32(falcon, 0x008) & dispatch & ~(dispatch >> 16); |
| |
| if (intr & 0x00000010) { |
| nv_debug(falcon, "ucode halted\n"); |
| nv_wo32(falcon, 0x004, 0x00000010); |
| intr &= ~0x00000010; |
| } |
| |
| if (intr) { |
| nv_error(falcon, "unhandled intr 0x%08x\n", intr); |
| nv_wo32(falcon, 0x004, intr); |
| } |
| } |
| |
| u32 |
| _nouveau_falcon_rd32(struct nouveau_object *object, u64 addr) |
| { |
| struct nouveau_falcon *falcon = (void *)object; |
| return nv_rd32(falcon, falcon->addr + addr); |
| } |
| |
| void |
| _nouveau_falcon_wr32(struct nouveau_object *object, u64 addr, u32 data) |
| { |
| struct nouveau_falcon *falcon = (void *)object; |
| nv_wr32(falcon, falcon->addr + addr, data); |
| } |
| |
| int |
| _nouveau_falcon_init(struct nouveau_object *object) |
| { |
| struct nouveau_device *device = nv_device(object); |
| struct nouveau_falcon *falcon = (void *)object; |
| const struct firmware *fw; |
| char name[32] = "internal"; |
| int ret, i; |
| u32 caps; |
| |
| /* enable engine, and determine its capabilities */ |
| ret = nouveau_engine_init(&falcon->base); |
| if (ret) |
| return ret; |
| |
| if (device->chipset < 0xa3 || |
| device->chipset == 0xaa || device->chipset == 0xac) { |
| falcon->version = 0; |
| falcon->secret = (falcon->addr == 0x087000) ? 1 : 0; |
| } else { |
| caps = nv_ro32(falcon, 0x12c); |
| falcon->version = (caps & 0x0000000f); |
| falcon->secret = (caps & 0x00000030) >> 4; |
| } |
| |
| caps = nv_ro32(falcon, 0x108); |
| falcon->code.limit = (caps & 0x000001ff) << 8; |
| falcon->data.limit = (caps & 0x0003fe00) >> 1; |
| |
| nv_debug(falcon, "falcon version: %d\n", falcon->version); |
| nv_debug(falcon, "secret level: %d\n", falcon->secret); |
| nv_debug(falcon, "code limit: %d\n", falcon->code.limit); |
| nv_debug(falcon, "data limit: %d\n", falcon->data.limit); |
| |
| /* wait for 'uc halted' to be signalled before continuing */ |
| if (falcon->secret && falcon->version < 4) { |
| if (!falcon->version) |
| nv_wait(falcon, 0x008, 0x00000010, 0x00000010); |
| else |
| nv_wait(falcon, 0x180, 0x80000000, 0); |
| nv_wo32(falcon, 0x004, 0x00000010); |
| } |
| |
| /* disable all interrupts */ |
| nv_wo32(falcon, 0x014, 0xffffffff); |
| |
| /* no default ucode provided by the engine implementation, try and |
| * locate a "self-bootstrapping" firmware image for the engine |
| */ |
| if (!falcon->code.data) { |
| snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03x", |
| device->chipset, falcon->addr >> 12); |
| |
| ret = request_firmware(&fw, name, &device->pdev->dev); |
| if (ret == 0) { |
| falcon->code.data = kmemdup(fw->data, fw->size, GFP_KERNEL); |
| falcon->code.size = fw->size; |
| falcon->data.data = NULL; |
| falcon->data.size = 0; |
| release_firmware(fw); |
| } |
| |
| falcon->external = true; |
| } |
| |
| /* next step is to try and load "static code/data segment" firmware |
| * images for the engine |
| */ |
| if (!falcon->code.data) { |
| snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xd", |
| device->chipset, falcon->addr >> 12); |
| |
| ret = request_firmware(&fw, name, &device->pdev->dev); |
| if (ret) { |
| nv_error(falcon, "unable to load firmware data\n"); |
| return ret; |
| } |
| |
| falcon->data.data = kmemdup(fw->data, fw->size, GFP_KERNEL); |
| falcon->data.size = fw->size; |
| release_firmware(fw); |
| if (!falcon->data.data) |
| return -ENOMEM; |
| |
| snprintf(name, sizeof(name), "nouveau/nv%02x_fuc%03xc", |
| device->chipset, falcon->addr >> 12); |
| |
| ret = request_firmware(&fw, name, &device->pdev->dev); |
| if (ret) { |
| nv_error(falcon, "unable to load firmware code\n"); |
| return ret; |
| } |
| |
| falcon->code.data = kmemdup(fw->data, fw->size, GFP_KERNEL); |
| falcon->code.size = fw->size; |
| release_firmware(fw); |
| if (!falcon->code.data) |
| return -ENOMEM; |
| } |
| |
| nv_debug(falcon, "firmware: %s (%s)\n", name, falcon->data.data ? |
| "static code/data segments" : "self-bootstrapping"); |
| |
| /* ensure any "self-bootstrapping" firmware image is in vram */ |
| if (!falcon->data.data && !falcon->core) { |
| ret = nouveau_gpuobj_new(object->parent, NULL, |
| falcon->code.size, 256, 0, |
| &falcon->core); |
| if (ret) { |
| nv_error(falcon, "core allocation failed, %d\n", ret); |
| return ret; |
| } |
| |
| for (i = 0; i < falcon->code.size; i += 4) |
| nv_wo32(falcon->core, i, falcon->code.data[i / 4]); |
| } |
| |
| /* upload firmware bootloader (or the full code segments) */ |
| if (falcon->core) { |
| if (device->card_type < NV_C0) |
| nv_wo32(falcon, 0x618, 0x04000000); |
| else |
| nv_wo32(falcon, 0x618, 0x00000114); |
| nv_wo32(falcon, 0x11c, 0); |
| nv_wo32(falcon, 0x110, falcon->core->addr >> 8); |
| nv_wo32(falcon, 0x114, 0); |
| nv_wo32(falcon, 0x118, 0x00006610); |
| } else { |
| if (falcon->code.size > falcon->code.limit || |
| falcon->data.size > falcon->data.limit) { |
| nv_error(falcon, "ucode exceeds falcon limit(s)\n"); |
| return -EINVAL; |
| } |
| |
| if (falcon->version < 3) { |
| nv_wo32(falcon, 0xff8, 0x00100000); |
| for (i = 0; i < falcon->code.size / 4; i++) |
| nv_wo32(falcon, 0xff4, falcon->code.data[i]); |
| } else { |
| nv_wo32(falcon, 0x180, 0x01000000); |
| for (i = 0; i < falcon->code.size / 4; i++) { |
| if ((i & 0x3f) == 0) |
| nv_wo32(falcon, 0x188, i >> 6); |
| nv_wo32(falcon, 0x184, falcon->code.data[i]); |
| } |
| } |
| } |
| |
| /* upload data segment (if necessary), zeroing the remainder */ |
| if (falcon->version < 3) { |
| nv_wo32(falcon, 0xff8, 0x00000000); |
| for (i = 0; !falcon->core && i < falcon->data.size / 4; i++) |
| nv_wo32(falcon, 0xff4, falcon->data.data[i]); |
| for (; i < falcon->data.limit; i += 4) |
| nv_wo32(falcon, 0xff4, 0x00000000); |
| } else { |
| nv_wo32(falcon, 0x1c0, 0x01000000); |
| for (i = 0; !falcon->core && i < falcon->data.size / 4; i++) |
| nv_wo32(falcon, 0x1c4, falcon->data.data[i]); |
| for (; i < falcon->data.limit / 4; i++) |
| nv_wo32(falcon, 0x1c4, 0x00000000); |
| } |
| |
| /* start it running */ |
| nv_wo32(falcon, 0x10c, 0x00000001); /* BLOCK_ON_FIFO */ |
| nv_wo32(falcon, 0x104, 0x00000000); /* ENTRY */ |
| nv_wo32(falcon, 0x100, 0x00000002); /* TRIGGER */ |
| nv_wo32(falcon, 0x048, 0x00000003); /* FIFO | CHSW */ |
| return 0; |
| } |
| |
| int |
| _nouveau_falcon_fini(struct nouveau_object *object, bool suspend) |
| { |
| struct nouveau_falcon *falcon = (void *)object; |
| |
| if (!suspend) { |
| nouveau_gpuobj_ref(NULL, &falcon->core); |
| if (falcon->external) { |
| kfree(falcon->data.data); |
| kfree(falcon->code.data); |
| falcon->code.data = NULL; |
| } |
| } |
| |
| nv_mo32(falcon, 0x048, 0x00000003, 0x00000000); |
| nv_wo32(falcon, 0x014, 0xffffffff); |
| |
| return nouveau_engine_fini(&falcon->base, suspend); |
| } |
| |
| int |
| nouveau_falcon_create_(struct nouveau_object *parent, |
| struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, u32 addr, bool enable, |
| const char *iname, const char *fname, |
| int length, void **pobject) |
| { |
| struct nouveau_falcon *falcon; |
| int ret; |
| |
| ret = nouveau_engine_create_(parent, engine, oclass, enable, iname, |
| fname, length, pobject); |
| falcon = *pobject; |
| if (ret) |
| return ret; |
| |
| falcon->addr = addr; |
| return 0; |
| } |