119 lines
3.3 KiB
C
119 lines
3.3 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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extern const u8 gf100_pte_storage_type_map[256];
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bool
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gf100_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags)
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{
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u8 memtype = (tile_flags & 0x0000ff00) >> 8;
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return likely((gf100_pte_storage_type_map[memtype] != 0xff));
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}
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static void
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gf100_fb_intr(struct nvkm_subdev *subdev)
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{
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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_init(struct nvkm_object *object)
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{
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struct gf100_fb *fb = (void *)object;
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struct nvkm_device *device = fb->base.subdev.device;
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int ret;
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ret = nvkm_fb_init(&fb->base);
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if (ret)
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return ret;
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if (fb->r100c10_page)
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nvkm_wr32(device, 0x100c10, fb->r100c10 >> 8);
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nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */
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return 0;
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}
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void
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gf100_fb_dtor(struct nvkm_object *object)
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{
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struct nvkm_device *device = nv_device(object);
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struct gf100_fb *fb = (void *)object;
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if (fb->r100c10_page) {
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dma_unmap_page(nv_device_base(device), 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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nvkm_fb_destroy(&fb->base);
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}
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int
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gf100_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
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struct nvkm_oclass *oclass, void *data, u32 size,
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struct nvkm_object **pobject)
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{
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struct nvkm_device *device = nv_device(parent);
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struct gf100_fb *fb;
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int ret;
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ret = nvkm_fb_create(parent, engine, oclass, &fb);
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*pobject = nv_object(fb);
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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(nv_device_base(device),
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fb->r100c10_page, 0, PAGE_SIZE,
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DMA_BIDIRECTIONAL);
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if (dma_mapping_error(nv_device_base(device), fb->r100c10))
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return -EFAULT;
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}
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nv_subdev(fb)->intr = gf100_fb_intr;
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return 0;
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}
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struct nvkm_oclass *
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gf100_fb_oclass = &(struct nvkm_fb_impl) {
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.base.handle = NV_SUBDEV(FB, 0xc0),
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.base.ofuncs = &(struct nvkm_ofuncs) {
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.ctor = gf100_fb_ctor,
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.dtor = gf100_fb_dtor,
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.init = gf100_fb_init,
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.fini = _nvkm_fb_fini,
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},
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.memtype = gf100_fb_memtype_valid,
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.ram_new = gf100_ram_new,
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}.base;
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