[mirror_ubuntu-bionic-kernel.git] / drivers / gpu / drm / nouveau / nvkm / subdev / fb / nv04.c

/*
 * Copyright 2012 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 "priv.h"
#include "ram.h"
#include "regsnv04.h"

bool
nv04_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags)
{
	if (!(tile_flags & 0xff00))
		return true;
	return false;
}

static void
nv04_fb_init(struct nvkm_fb *fb)
{
	struct nvkm_device *device = fb->subdev.device;

	/* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
	 * nvidia reading PFB_CFG_0, then writing back its original value.
	 * (which was 0x701114 in this case)
	 */
	nvkm_wr32(device, NV04_PFB_CFG0, 0x1114);
}

static const struct nvkm_fb_func
nv04_fb = {
	.init = nv04_fb_init,
	.ram_new = nv04_ram_new,
	.memtype_valid = nv04_fb_memtype_valid,
};

int
nv04_fb_new(struct nvkm_device *device, int index, struct nvkm_fb **pfb)
{
	return nvkm_fb_new_(&nv04_fb, device, index, pfb);
}
Commit	Line	Data
861d2107 BS	1	/*
	2	* Copyright 2012 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	*/
03c8952f	24	#include "priv.h"
d36a99d2	25	#include "ram.h"
639c308e	26	#include "regsnv04.h"
861d2107	27
861d2107	28	bool
b1e4553c	29	nv04_fb_memtype_valid(struct nvkm_fb *fb, u32 tile_flags)
861d2107 BS	30	{
	31	if (!(tile_flags & 0xff00))
	32	return true;
861d2107 BS	33	return false;
	34	}
	35
03c8952f BS	36	static void
03c8952f BS	37	nv04_fb_init(struct nvkm_fb *fb)
7ad2d31c	38	{
6758745b	39	struct nvkm_device *device = fb->subdev.device;
861d2107 BS	40
	41	/* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
	42	* nvidia reading PFB_CFG_0, then writing back its original value.
	43	* (which was 0x701114 in this case)
	44	*/
6758745b	45	nvkm_wr32(device, NV04_PFB_CFG0, 0x1114);
861d2107	46	}
7ad2d31c	47
03c8952f BS	48	static const struct nvkm_fb_func
	49	nv04_fb = {
	50	.init = nv04_fb_init,
	51	.ram_new = nv04_ram_new,
	52	.memtype_valid = nv04_fb_memtype_valid,
	53	};
	54
20cdeaf9	55	int
03c8952f	56	nv04_fb_new(struct nvkm_device device, int index, struct nvkm_fb *pfb)
861d2107	57	{
03c8952f	58	return nvkm_fb_new_(&nv04_fb, device, index, pfb);
6ee73861	59	}