[mirror_ubuntu-focal-kernel.git] / drivers / gpu / drm / nouveau / nvkm / subdev / devinit / gf100.c

/*
 * 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);
	u64 disable = 0ULL;

	if (r022500 & 0x00000001)
		disable |= (1ULL << NVKM_ENGINE_DISP);

	if (r022500 & 0x00000002) {
		disable |= (1ULL << NVKM_ENGINE_MSPDEC);
		disable |= (1ULL << NVKM_ENGINE_MSPPP);
	}

	if (r022500 & 0x00000004)
		disable |= (1ULL << NVKM_ENGINE_MSVLD);
	if (r022500 & 0x00000008)
		disable |= (1ULL << NVKM_ENGINE_MSENC);
	if (r022500 & 0x00000100)
		disable |= (1ULL << NVKM_ENGINE_CE0);
	if (r022500 & 0x00000200)
		disable |= (1ULL << NVKM_ENGINE_CE1);

	return disable;
}

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, int index,
		struct nvkm_devinit **pinit)
{
	return nv50_devinit_new_(&gf100_devinit, device, index, pinit);
}
Commit	Line	Data
88524bc0 BS	1	/*
	2	* Copyright 2013 Red Hat Inc.
	3	*
	4	* Permission is hereby granted, free of charge, to any person obtaining a
	5	* copy of this software and associated documentation files (the "Software"),
	6	* to deal in the Software without restriction, including without limitation
	7	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	8	* and/or sell copies of the Software, and to permit persons to whom the
	9	* Software is furnished to do so, subject to the following conditions:
	10	*
	11	* The above copyright notice and this permission notice shall be included in
	12	* all copies or substantial portions of the Software.
	13	*
	14	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	15	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	17	* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
	18	* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
	19	* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
	20	* OTHER DEALINGS IN THE SOFTWARE.
	21	*
	22	* Authors: Ben Skeggs
	23	*/
cf336014	24	#include "nv50.h"
88524bc0	25
a8c4362b BS	26	#include <subdev/bios.h>
	27	#include <subdev/bios/init.h>
	28	#include <subdev/bios/pll.h>
	29	#include <subdev/clk/pll.h>
	30
4bf23ead	31	int
8ac3f64f	32	gf100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
88524bc0	33	{
8ac3f64f BS	34	struct nvkm_subdev *subdev = &init->subdev;
8ac3f64f BS	35	struct nvkm_device *device = subdev->device;
88524bc0 BS	36	struct nvbios_pll info;
	37	int N, fN, M, P;
	38	int ret;
	39
8ac3f64f	40	ret = nvbios_pll_parse(device->bios, type, &info);
88524bc0 BS	41	if (ret)
	42	return ret;
	43
8ac3f64f	44	ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
88524bc0 BS	45	if (ret < 0)
	46	return ret;
	47
	48	switch (info.type) {
	49	case PLL_VPLL0:
	50	case PLL_VPLL1:
	51	case PLL_VPLL2:
	52	case PLL_VPLL3:
8ac3f64f BS	53	nvkm_mask(device, info.reg + 0x0c, 0x00000000, 0x00000100);
	54	nvkm_wr32(device, info.reg + 0x04, (P << 16) \| (N << 8) \| M);
	55	nvkm_wr32(device, info.reg + 0x10, fN << 16);
88524bc0 BS	56	break;
88524bc0 BS	57	default:
aa860e4b	58	nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
88524bc0 BS	59	ret = -EINVAL;
	60	break;
	61	}
	62
	63	return ret;
	64	}
	65
4019aaa2	66	static u64
8ac3f64f	67	gf100_devinit_disable(struct nvkm_devinit *init)
4019aaa2	68	{
8ac3f64f BS	69	struct nvkm_device *device = init->subdev.device;
8ac3f64f BS	70	u32 r022500 = nvkm_rd32(device, 0x022500);
4019aaa2 IM	71	u64 disable = 0ULL;
	72
	73	if (r022500 & 0x00000001)
68f3f702	74	disable \|= (1ULL << NVKM_ENGINE_DISP);
4019aaa2 IM	75
4019aaa2 IM	76	if (r022500 & 0x00000002) {
68f3f702 BS	77	disable \|= (1ULL << NVKM_ENGINE_MSPDEC);
68f3f702 BS	78	disable \|= (1ULL << NVKM_ENGINE_MSPPP);
4019aaa2 IM	79	}
	80
	81	if (r022500 & 0x00000004)
68f3f702	82	disable \|= (1ULL << NVKM_ENGINE_MSVLD);
4019aaa2	83	if (r022500 & 0x00000008)
68f3f702	84	disable \|= (1ULL << NVKM_ENGINE_MSENC);
4019aaa2	85	if (r022500 & 0x00000100)
68f3f702	86	disable \|= (1ULL << NVKM_ENGINE_CE0);
4019aaa2	87	if (r022500 & 0x00000200)
68f3f702	88	disable \|= (1ULL << NVKM_ENGINE_CE1);
4019aaa2 IM	89
	90	return disable;
	91	}
	92
a6a0f67c AC	93	void
	94	gf100_devinit_preinit(struct nvkm_devinit *base)
	95	{
	96	struct nv50_devinit *init = nv50_devinit(base);
	97	struct nvkm_subdev *subdev = &init->base.subdev;
	98	struct nvkm_device *device = subdev->device;
	99
c6007dc4 AC	100	/*
	101	* This bit is set by devinit, and flips back to 0 on suspend. We
	102	* can use it as a reliable way to know whether we should run devinit.
	103	*/
	104	base->post = ((nvkm_rd32(device, 0x2240c) & BIT(1)) == 0);
a6a0f67c AC	105	}
a6a0f67c AC	106
151abd44 BS	107	static const struct nvkm_devinit_func
151abd44 BS	108	gf100_devinit = {
a6a0f67c	109	.preinit = gf100_devinit_preinit,
151abd44 BS	110	.init = nv50_devinit_init,
	111	.post = nv04_devinit_post,
	112	.pll_set = gf100_devinit_pll_set,
	113	.disable = gf100_devinit_disable,
	114	};
	115
4d4d6f75	116	int
151abd44 BS	117	gf100_devinit_new(struct nvkm_device *device, int index,
151abd44 BS	118	struct nvkm_devinit **pinit)
88524bc0	119	{
151abd44	120	return nv50_devinit_new_(&gf100_devinit, device, index, pinit);
88524bc0	121	}