[deliverable/linux.git] / drivers / gpu / drm / nouveau / nvkm / subdev / bus / nv50.c

/*
 * Copyright 2012 Nouveau Community
 *
 * 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: Martin Peres <martin.peres@labri.fr>
 *          Ben Skeggs
 */
#include "priv.h"

#include <subdev/therm.h>
#include <subdev/timer.h>

static int
nv50_bus_hwsq_exec(struct nvkm_bus *bus, u32 *data, u32 size)
{
	struct nvkm_device *device = bus->subdev.device;
	int i;

	nvkm_mask(device, 0x001098, 0x00000008, 0x00000000);
	nvkm_wr32(device, 0x001304, 0x00000000);
	for (i = 0; i < size; i++)
		nvkm_wr32(device, 0x001400 + (i * 4), data[i]);
	nvkm_mask(device, 0x001098, 0x00000018, 0x00000018);
	nvkm_wr32(device, 0x00130c, 0x00000003);

	if (nvkm_msec(device, 2000,
		if (!(nvkm_rd32(device, 0x001308) & 0x00000100))
			break;
	) < 0)
		return -ETIMEDOUT;

	return 0;
}

void
nv50_bus_intr(struct nvkm_bus *bus)
{
	struct nvkm_subdev *subdev = &bus->subdev;
	struct nvkm_device *device = subdev->device;
	u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);

	if (stat & 0x00000008) {
		u32 addr = nvkm_rd32(device, 0x009084);
		u32 data = nvkm_rd32(device, 0x009088);

		nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n",
			   (addr & 0x00000002) ? "write" : "read", data,
			   (addr & 0x00fffffc));

		stat &= ~0x00000008;
		nvkm_wr32(device, 0x001100, 0x00000008);
	}

	if (stat & 0x00010000) {
		struct nvkm_therm *therm = device->therm;
		if (therm)
			nvkm_subdev_intr(&therm->subdev);
		stat &= ~0x00010000;
		nvkm_wr32(device, 0x001100, 0x00010000);
	}

	if (stat) {
		nvkm_error(subdev, "intr %08x\n", stat);
		nvkm_mask(device, 0x001140, stat, 0);
	}
}

void
nv50_bus_init(struct nvkm_bus *bus)
{
	struct nvkm_device *device = bus->subdev.device;
	nvkm_wr32(device, 0x001100, 0xffffffff);
	nvkm_wr32(device, 0x001140, 0x00010008);
}

static const struct nvkm_bus_func
nv50_bus = {
	.init = nv50_bus_init,
	.intr = nv50_bus_intr,
	.hwsq_exec = nv50_bus_hwsq_exec,
	.hwsq_size = 64,
};

int
nv50_bus_new(struct nvkm_device *device, int index, struct nvkm_bus **pbus)
{
	return nvkm_bus_new_(&nv50_bus, device, index, pbus);
}
Commit	Line	Data
a10220bb MP	1	/*
	2	* Copyright 2012 Nouveau Community
	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: Martin Peres <martin.peres@labri.fr>
	23	* Ben Skeggs
	24	*/
bb23f9d7	25	#include "priv.h"
a10220bb	26
a699a85a	27	#include <subdev/therm.h>
2984506f BS	28	#include <subdev/timer.h>
2984506f BS	29
2984506f	30	static int
01d6b956	31	nv50_bus_hwsq_exec(struct nvkm_bus bus, u32 data, u32 size)
2984506f	32	{
14caba44	33	struct nvkm_device *device = bus->subdev.device;
2984506f BS	34	int i;
2984506f BS	35
14caba44 BS	36	nvkm_mask(device, 0x001098, 0x00000008, 0x00000000);
14caba44 BS	37	nvkm_wr32(device, 0x001304, 0x00000000);
2984506f	38	for (i = 0; i < size; i++)
14caba44 BS	39	nvkm_wr32(device, 0x001400 + (i * 4), data[i]);
	40	nvkm_mask(device, 0x001098, 0x00000018, 0x00000018);
	41	nvkm_wr32(device, 0x00130c, 0x00000003);
2984506f	42
4f31c84e BS	43	if (nvkm_msec(device, 2000,
	44	if (!(nvkm_rd32(device, 0x001308) & 0x00000100))
	45	break;
	46	) < 0)
	47	return -ETIMEDOUT;
	48
	49	return 0;
2984506f BS	50	}
	51
	52	void
bb23f9d7	53	nv50_bus_intr(struct nvkm_bus *bus)
a10220bb	54	{
bb23f9d7	55	struct nvkm_subdev *subdev = &bus->subdev;
a699a85a	56	struct nvkm_device *device = subdev->device;
14caba44	57	u32 stat = nvkm_rd32(device, 0x001100) & nvkm_rd32(device, 0x001140);
a10220bb MP	58
a10220bb MP	59	if (stat & 0x00000008) {
14caba44 BS	60	u32 addr = nvkm_rd32(device, 0x009084);
14caba44 BS	61	u32 data = nvkm_rd32(device, 0x009088);
9d7175c8	62
a699a85a BS	63	nvkm_error(subdev, "MMIO %s of %08x FAULT at %06x\n",
	64	(addr & 0x00000002) ? "write" : "read", data,
	65	(addr & 0x00fffffc));
9d7175c8	66
a10220bb	67	stat &= ~0x00000008;
14caba44	68	nvkm_wr32(device, 0x001100, 0x00000008);
a10220bb MP	69	}
	70
	71	if (stat & 0x00010000) {
a699a85a	72	struct nvkm_therm *therm = device->therm;
6cf813fb BS	73	if (therm)
6cf813fb BS	74	nvkm_subdev_intr(&therm->subdev);
a10220bb	75	stat &= ~0x00010000;
14caba44	76	nvkm_wr32(device, 0x001100, 0x00010000);
a10220bb MP	77	}
	78
	79	if (stat) {
a699a85a	80	nvkm_error(subdev, "intr %08x\n", stat);
14caba44	81	nvkm_mask(device, 0x001140, stat, 0);
a10220bb MP	82	}
	83	}
	84
bb23f9d7 BS	85	void
bb23f9d7 BS	86	nv50_bus_init(struct nvkm_bus *bus)
a10220bb	87	{
14caba44	88	struct nvkm_device *device = bus->subdev.device;
14caba44 BS	89	nvkm_wr32(device, 0x001100, 0xffffffff);
14caba44 BS	90	nvkm_wr32(device, 0x001140, 0x00010008);
a10220bb MP	91	}
a10220bb MP	92
bb23f9d7 BS	93	static const struct nvkm_bus_func
	94	nv50_bus = {
	95	.init = nv50_bus_init,
48ae0b35	96	.intr = nv50_bus_intr,
2984506f BS	97	.hwsq_exec = nv50_bus_hwsq_exec,
2984506f BS	98	.hwsq_size = 64,
bb23f9d7 BS	99	};
	100
	101	int
	102	nv50_bus_new(struct nvkm_device device, int index, struct nvkm_bus *pbus)
	103	{
	104	return nvkm_bus_new_(&nv50_bus, device, index, pbus);
	105	}