diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gf100.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gf100.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gf100.c b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gf100.c new file mode 100644 index 000000000..5b7cb1fe7 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gf100.c @@ -0,0 +1,120 @@ +/* + * Copyright 2013 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 "nv50.h" + +#include <subdev/bios.h> +#include <subdev/bios/init.h> +#include <subdev/bios/pll.h> +#include <subdev/clk/pll.h> + +int +gf100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq) +{ + struct nvkm_subdev *subdev = &init->subdev; + struct nvkm_device *device = subdev->device; + struct nvbios_pll info; + int N, fN, M, P; + int ret; + + ret = nvbios_pll_parse(device->bios, type, &info); + if (ret) + return ret; + + ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P); + if (ret < 0) + return ret; + + switch (info.type) { + case PLL_VPLL0: + case PLL_VPLL1: + case PLL_VPLL2: + case PLL_VPLL3: + nvkm_mask(device, info.reg + 0x0c, 0x00000000, 0x00000100); + nvkm_wr32(device, info.reg + 0x04, (P << 16) | (N << 8) | M); + nvkm_wr32(device, info.reg + 0x10, fN << 16); + break; + default: + nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq); + ret = -EINVAL; + break; + } + + return ret; +} + +static u64 +gf100_devinit_disable(struct nvkm_devinit *init) +{ + struct nvkm_device *device = init->subdev.device; + u32 r022500 = nvkm_rd32(device, 0x022500); + + if (r022500 & 0x00000001) + nvkm_subdev_disable(device, NVKM_ENGINE_DISP, 0); + + if (r022500 & 0x00000002) { + nvkm_subdev_disable(device, NVKM_ENGINE_MSPDEC, 0); + nvkm_subdev_disable(device, NVKM_ENGINE_MSPPP, 0); + } + + if (r022500 & 0x00000004) + nvkm_subdev_disable(device, NVKM_ENGINE_MSVLD, 0); + if (r022500 & 0x00000008) + nvkm_subdev_disable(device, NVKM_ENGINE_MSENC, 0); + if (r022500 & 0x00000100) + nvkm_subdev_disable(device, NVKM_ENGINE_CE, 0); + if (r022500 & 0x00000200) + nvkm_subdev_disable(device, NVKM_ENGINE_CE, 1); + + return 0ULL; +} + +void +gf100_devinit_preinit(struct nvkm_devinit *base) +{ + struct nv50_devinit *init = nv50_devinit(base); + struct nvkm_subdev *subdev = &init->base.subdev; + struct nvkm_device *device = subdev->device; + + /* + * This bit is set by devinit, and flips back to 0 on suspend. We + * can use it as a reliable way to know whether we should run devinit. + */ + base->post = ((nvkm_rd32(device, 0x2240c) & BIT(1)) == 0); +} + +static const struct nvkm_devinit_func +gf100_devinit = { + .preinit = gf100_devinit_preinit, + .init = nv50_devinit_init, + .post = nv04_devinit_post, + .pll_set = gf100_devinit_pll_set, + .disable = gf100_devinit_disable, +}; + +int +gf100_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_devinit **pinit) +{ + return nv50_devinit_new_(&gf100_devinit, device, type, inst, pinit); +} |