diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c new file mode 100644 index 000000000..9dcc40f9e --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c @@ -0,0 +1,147 @@ +/* + * 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); +} |