148 lines
4.0 KiB
C
148 lines
4.0 KiB
C
/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "gf100.h"
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#include "ram.h"
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#include <core/memory.h>
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#include <core/option.h>
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#include <subdev/therm.h>
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void
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gf100_fb_intr(struct nvkm_fb *base)
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{
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struct gf100_fb *fb = gf100_fb(base);
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struct nvkm_subdev *subdev = &fb->base.subdev;
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struct nvkm_device *device = subdev->device;
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u32 intr = nvkm_rd32(device, 0x000100);
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if (intr & 0x08000000)
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nvkm_debug(subdev, "PFFB intr\n");
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if (intr & 0x00002000)
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nvkm_debug(subdev, "PBFB intr\n");
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}
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int
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gf100_fb_oneinit(struct nvkm_fb *base)
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{
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struct gf100_fb *fb = gf100_fb(base);
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struct nvkm_device *device = fb->base.subdev.device;
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int ret, size = 1 << (fb->base.page ? fb->base.page : 17);
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size = nvkm_longopt(device->cfgopt, "MmuDebugBufferSize", size);
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size = max(size, 0x1000);
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ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000,
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true, &fb->base.mmu_rd);
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if (ret)
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return ret;
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ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000,
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true, &fb->base.mmu_wr);
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if (ret)
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return ret;
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fb->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
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if (fb->r100c10_page) {
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fb->r100c10 = dma_map_page(device->dev, fb->r100c10_page, 0,
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PAGE_SIZE, DMA_BIDIRECTIONAL);
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if (dma_mapping_error(device->dev, fb->r100c10))
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return -EFAULT;
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}
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return 0;
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}
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int
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gf100_fb_init_page(struct nvkm_fb *fb)
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{
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struct nvkm_device *device = fb->subdev.device;
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switch (fb->page) {
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case 16: nvkm_mask(device, 0x100c80, 0x00000001, 0x00000001); break;
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case 17: nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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void
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gf100_fb_init(struct nvkm_fb *base)
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{
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struct gf100_fb *fb = gf100_fb(base);
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struct nvkm_device *device = fb->base.subdev.device;
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if (fb->r100c10_page)
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nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
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if (base->func->clkgate_pack) {
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nvkm_therm_clkgate_init(device->therm,
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base->func->clkgate_pack);
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}
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}
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void *
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gf100_fb_dtor(struct nvkm_fb *base)
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{
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struct gf100_fb *fb = gf100_fb(base);
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struct nvkm_device *device = fb->base.subdev.device;
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if (fb->r100c10_page) {
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dma_unmap_page(device->dev, fb->r100c10, PAGE_SIZE,
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DMA_BIDIRECTIONAL);
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__free_page(fb->r100c10_page);
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}
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return fb;
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}
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int
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gf100_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
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enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
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{
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struct gf100_fb *fb;
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if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL)))
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return -ENOMEM;
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nvkm_fb_ctor(func, device, type, inst, &fb->base);
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*pfb = &fb->base;
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return 0;
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}
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static const struct nvkm_fb_func
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gf100_fb = {
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.dtor = gf100_fb_dtor,
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.oneinit = gf100_fb_oneinit,
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.init = gf100_fb_init,
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.init_page = gf100_fb_init_page,
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.intr = gf100_fb_intr,
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.ram_new = gf100_ram_new,
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.default_bigpage = 17,
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};
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int
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gf100_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
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{
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return gf100_fb_new_(&gf100_fb, device, type, inst, pfb);
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}
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