| /* |
| * 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 "gf100.h" |
| #include "ram.h" |
| |
| #include <core/memory.h> |
| #include <core/option.h> |
| #include <subdev/therm.h> |
| |
| void |
| gf100_fb_intr(struct nvkm_fb *base) |
| { |
| struct gf100_fb *fb = gf100_fb(base); |
| struct nvkm_subdev *subdev = &fb->base.subdev; |
| struct nvkm_device *device = subdev->device; |
| u32 intr = nvkm_rd32(device, 0x000100); |
| if (intr & 0x08000000) |
| nvkm_debug(subdev, "PFFB intr\n"); |
| if (intr & 0x00002000) |
| nvkm_debug(subdev, "PBFB intr\n"); |
| } |
| |
| int |
| gf100_fb_oneinit(struct nvkm_fb *base) |
| { |
| struct gf100_fb *fb = gf100_fb(base); |
| struct nvkm_device *device = fb->base.subdev.device; |
| int ret, size = 1 << (fb->base.page ? fb->base.page : 17); |
| |
| size = nvkm_longopt(device->cfgopt, "MmuDebugBufferSize", size); |
| size = max(size, 0x1000); |
| |
| ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000, |
| true, &fb->base.mmu_rd); |
| if (ret) |
| return ret; |
| |
| ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000, |
| true, &fb->base.mmu_wr); |
| if (ret) |
| return ret; |
| |
| fb->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO); |
| if (fb->r100c10_page) { |
| fb->r100c10 = dma_map_page(device->dev, fb->r100c10_page, 0, |
| PAGE_SIZE, DMA_BIDIRECTIONAL); |
| if (dma_mapping_error(device->dev, fb->r100c10)) |
| return -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| int |
| gf100_fb_init_page(struct nvkm_fb *fb) |
| { |
| struct nvkm_device *device = fb->subdev.device; |
| switch (fb->page) { |
| case 16: nvkm_mask(device, 0x100c80, 0x00000001, 0x00000001); break; |
| case 17: nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); break; |
| default: |
| return -EINVAL; |
| } |
| return 0; |
| } |
| |
| void |
| gf100_fb_init(struct nvkm_fb *base) |
| { |
| struct gf100_fb *fb = gf100_fb(base); |
| struct nvkm_device *device = fb->base.subdev.device; |
| |
| if (fb->r100c10_page) |
| nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8); |
| |
| if (base->func->clkgate_pack) { |
| nvkm_therm_clkgate_init(device->therm, |
| base->func->clkgate_pack); |
| } |
| } |
| |
| void * |
| gf100_fb_dtor(struct nvkm_fb *base) |
| { |
| struct gf100_fb *fb = gf100_fb(base); |
| struct nvkm_device *device = fb->base.subdev.device; |
| |
| if (fb->r100c10_page) { |
| dma_unmap_page(device->dev, fb->r100c10, PAGE_SIZE, |
| DMA_BIDIRECTIONAL); |
| __free_page(fb->r100c10_page); |
| } |
| |
| return fb; |
| } |
| |
| int |
| gf100_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device, |
| enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) |
| { |
| struct gf100_fb *fb; |
| |
| if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL))) |
| return -ENOMEM; |
| nvkm_fb_ctor(func, device, type, inst, &fb->base); |
| *pfb = &fb->base; |
| |
| return 0; |
| } |
| |
| static const struct nvkm_fb_func |
| gf100_fb = { |
| .dtor = gf100_fb_dtor, |
| .oneinit = gf100_fb_oneinit, |
| .init = gf100_fb_init, |
| .init_page = gf100_fb_init_page, |
| .intr = gf100_fb_intr, |
| .ram_new = gf100_ram_new, |
| .default_bigpage = 17, |
| }; |
| |
| int |
| gf100_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb) |
| { |
| return gf100_fb_new_(&gf100_fb, device, type, inst, pfb); |
| } |