[mirror_ubuntu-hirsute-kernel.git] / drivers / gpu / drm / nouveau / core / subdev / devinit / nv20.c

/*
 * Copyright (C) 2010 Francisco Jerez.
 * All Rights Reserved.
 *
 * 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 (including the
 * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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.
 *
 */

#include <subdev/devinit.h>
#include <subdev/vga.h>

#include "fbmem.h"

struct nv20_devinit_priv {
	struct nouveau_devinit base;
	u8 owner;
};

static void
nv20_devinit_meminit(struct nouveau_devinit *devinit)
{
	struct nv20_devinit_priv *priv = (void *)devinit;
	struct nouveau_device *device = nv_device(priv);
	uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);
	uint32_t amount, off;
	struct io_mapping *fb;

	/* Map the framebuffer aperture */
	fb = fbmem_init(nv_device(priv)->pdev);
	if (!fb) {
		nv_error(priv, "failed to map fb\n");
		return;
	}

	nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);

	/* Allow full addressing */
	nv_mask(priv, NV04_PFB_CFG0, 0, mask);

	amount = nv_rd32(priv, 0x10020c);
	for (off = amount; off > 0x2000000; off -= 0x2000000)
		fbmem_poke(fb, off - 4, off);

	amount = nv_rd32(priv, 0x10020c);
	if (amount != fbmem_peek(fb, amount - 4))
		/* IC missing - disable the upper half memory space. */
		nv_mask(priv, NV04_PFB_CFG0, mask, 0);

	fbmem_fini(fb);
}

static int
nv20_devinit_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
		  struct nouveau_oclass *oclass, void *data, u32 size,
		  struct nouveau_object **pobject)
{
	struct nv20_devinit_priv *priv;
	int ret;

	ret = nouveau_devinit_create(parent, engine, oclass, &priv);
	*pobject = nv_object(priv);
	if (ret)
		return ret;

	priv->base.meminit = nv20_devinit_meminit;
	return 0;
}

struct nouveau_oclass
nv20_devinit_oclass = {
	.handle = NV_SUBDEV(DEVINIT, 0x20),
	.ofuncs = &(struct nouveau_ofuncs) {
		.ctor = nv20_devinit_ctor,
		.dtor = nv04_devinit_dtor,
		.init = nv04_devinit_init,
		.fini = nv04_devinit_fini,
	},
};
Commit	Line	Data
cb75d97e BS	1	/*
	2	* Copyright (C) 2010 Francisco Jerez.
	3	* All Rights Reserved.
	4	*
	5	* Permission is hereby granted, free of charge, to any person obtaining
	6	* a copy of this software and associated documentation files (the
	7	* "Software"), to deal in the Software without restriction, including
	8	* without limitation the rights to use, copy, modify, merge, publish,
	9	* distribute, sublicense, and/or sell copies of the Software, and to
	10	* permit persons to whom the Software is furnished to do so, subject to
	11	* the following conditions:
	12	*
	13	* The above copyright notice and this permission notice (including the
	14	* next paragraph) shall be included in all copies or substantial
	15	* portions of the Software.
	16	*
	17	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	18	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	19	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	20	* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
	21	* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
	22	* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
	23	* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	24	*
	25	*/
	26
	27	#include <subdev/devinit.h>
	28	#include <subdev/vga.h>
	29
	30	#include "fbmem.h"
	31
	32	struct nv20_devinit_priv {
	33	struct nouveau_devinit base;
	34	u8 owner;
	35	};
	36
	37	static void
	38	nv20_devinit_meminit(struct nouveau_devinit *devinit)
	39	{
	40	struct nv20_devinit_priv priv = (void )devinit;
	41	struct nouveau_device *device = nv_device(priv);
	42	uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);
	43	uint32_t amount, off;
	44	struct io_mapping *fb;
	45
	46	/* Map the framebuffer aperture */
	47	fb = fbmem_init(nv_device(priv)->pdev);
	48	if (!fb) {
	49	nv_error(priv, "failed to map fb\n");
	50	return;
	51	}
	52
	53	nv_wr32(priv, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
	54
	55	/* Allow full addressing */
	56	nv_mask(priv, NV04_PFB_CFG0, 0, mask);
	57
	58	amount = nv_rd32(priv, 0x10020c);
	59	for (off = amount; off > 0x2000000; off -= 0x2000000)
	60	fbmem_poke(fb, off - 4, off);
	61
	62	amount = nv_rd32(priv, 0x10020c);
	63	if (amount != fbmem_peek(fb, amount - 4))
	64	/* IC missing - disable the upper half memory space. */
65	nv_mask(priv, NV04_PFB_CFG0, mask, 0);
66
67	fbmem_fini(fb);
68	}
69
70	static int
71	nv20_devinit_ctor(struct nouveau_object parent, struct nouveau_object engine,
72	struct nouveau_oclass oclass, void data, u32 size,
73	struct nouveau_object **pobject)
74	{
75	struct nv20_devinit_priv *priv;
76	int ret;
77
78	ret = nouveau_devinit_create(parent, engine, oclass, &priv);
79	*pobject = nv_object(priv);
80	if (ret)
81	return ret;
82
83	priv->base.meminit = nv20_devinit_meminit;
84	return 0;
85	}
86
87	struct nouveau_oclass
88	nv20_devinit_oclass = {
89	.handle = NV_SUBDEV(DEVINIT, 0x20),
90	.ofuncs = &(struct nouveau_ofuncs) {
91	.ctor = nv20_devinit_ctor,
92	.dtor = nv04_devinit_dtor,
93	.init = nv04_devinit_init,
94	.fini = nv04_devinit_fini,
95	},
96	};