[deliverable/linux.git] / drivers / gpu / drm / nouveau / nvkm / 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 "nv04.h"
#include "fbmem.h"

#include <subdev/bios.h>
#include <subdev/bios/init.h>

static void
nv20_devinit_meminit(struct nvkm_devinit *init)
{
	struct nvkm_subdev *subdev = &init->subdev;
	struct nvkm_device *device = subdev->device;
	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(init));
	if (!fb) {
		nvkm_error(subdev, "failed to map fb\n");
		return;
	}

	nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);

	/* Allow full addressing */
	nvkm_mask(device, NV04_PFB_CFG0, 0, mask);

	amount = nvkm_rd32(device, 0x10020c);
	for (off = amount; off > 0x2000000; off -= 0x2000000)
		fbmem_poke(fb, off - 4, off);

	amount = nvkm_rd32(device, 0x10020c);
	if (amount != fbmem_peek(fb, amount - 4))
		/* IC missing - disable the upper half memory space. */
		nvkm_mask(device, NV04_PFB_CFG0, mask, 0);

	fbmem_fini(fb);
}

struct nvkm_oclass *
nv20_devinit_oclass = &(struct nvkm_devinit_impl) {
	.base.handle = NV_SUBDEV(DEVINIT, 0x20),
	.base.ofuncs = &(struct nvkm_ofuncs) {
		.ctor = nv04_devinit_ctor,
		.dtor = nv04_devinit_dtor,
		.init = nv04_devinit_init,
		.fini = nv04_devinit_fini,
	},
	.meminit = nv20_devinit_meminit,
	.pll_set = nv04_devinit_pll_set,
	.post = nvbios_init,
}.base;
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	*/
cf336014	26	#include "nv04.h"
cb75d97e BS	27	#include "fbmem.h"
cb75d97e BS	28
a8c4362b BS	29	#include <subdev/bios.h>
	30	#include <subdev/bios/init.h>
	31
cb75d97e	32	static void
aa860e4b	33	nv20_devinit_meminit(struct nvkm_devinit *init)
cb75d97e	34	{
aa860e4b BS	35	struct nvkm_subdev *subdev = &init->subdev;
aa860e4b BS	36	struct nvkm_device *device = subdev->device;
cb75d97e BS	37	uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);
	38	uint32_t amount, off;
	39	struct io_mapping *fb;
	40
	41	/* Map the framebuffer aperture */
266f8b5e	42	fb = fbmem_init(nv_device(init));
cb75d97e	43	if (!fb) {
aa860e4b	44	nvkm_error(subdev, "failed to map fb\n");
cb75d97e BS	45	return;
	46	}
	47
8ac3f64f	48	nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
cb75d97e BS	49
cb75d97e BS	50	/* Allow full addressing */
8ac3f64f	51	nvkm_mask(device, NV04_PFB_CFG0, 0, mask);
cb75d97e	52
8ac3f64f	53	amount = nvkm_rd32(device, 0x10020c);
cb75d97e BS	54	for (off = amount; off > 0x2000000; off -= 0x2000000)
	55	fbmem_poke(fb, off - 4, off);
	56
8ac3f64f	57	amount = nvkm_rd32(device, 0x10020c);
cb75d97e BS	58	if (amount != fbmem_peek(fb, amount - 4))
cb75d97e BS	59	/* IC missing - disable the upper half memory space. */
8ac3f64f	60	nvkm_mask(device, NV04_PFB_CFG0, mask, 0);
cb75d97e BS	61
	62	fbmem_fini(fb);
	63	}
	64
a8c4362b BS	65	struct nvkm_oclass *
a8c4362b BS	66	nv20_devinit_oclass = &(struct nvkm_devinit_impl) {
cf336014	67	.base.handle = NV_SUBDEV(DEVINIT, 0x20),
a8c4362b	68	.base.ofuncs = &(struct nvkm_ofuncs) {
cf336014	69	.ctor = nv04_devinit_ctor,
cb75d97e BS	70	.dtor = nv04_devinit_dtor,
	71	.init = nv04_devinit_init,
	72	.fini = nv04_devinit_fini,
	73	},
cf336014 BS	74	.meminit = nv20_devinit_meminit,
cf336014 BS	75	.pll_set = nv04_devinit_pll_set,
e21fd7c4	76	.post = nvbios_init,
cf336014	77	}.base;