drm/nouveau/ltc/gp100: initial support

int gk20a_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);

int gm107_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);

int gm200_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);

int gp100_ltc_new(struct nvkm_device *, int, struct nvkm_ltc **);

#endif

	.i2c = gm200_i2c_new,

	.ibus = gm200_ibus_new,

	.imem = nv50_instmem_new,

	.ltc = gp100_ltc_new,

	.mc = gp100_mc_new,

	.mmu = gf100_mmu_new,

	.pci = gp100_pci_new,

nvkm-y += nvkm/subdev/ltc/gk104.o

nvkm-y += nvkm/subdev/ltc/gm107.o

nvkm-y += nvkm/subdev/ltc/gm200.o

nvkm-y += nvkm/subdev/ltc/gp100.o

	nvkm_wr32(device, 0x17e34c, depth);

}

static void

void

gm107_ltc_intr_lts(struct nvkm_ltc *ltc, int c, int s)

{

	struct nvkm_subdev *subdev = &ltc->subdev;

/*

 * Copyright 2016 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"

static void

gp100_ltc_intr(struct nvkm_ltc *ltc)

{

	struct nvkm_device *device = ltc->subdev.device;

	u32 mask;

	mask = nvkm_rd32(device, 0x0001c0);

	while (mask) {

		u32 s, c = __ffs(mask);

		for (s = 0; s < ltc->lts_nr; s++)

			gm107_ltc_intr_lts(ltc, c, s);

		mask &= ~(1 << c);

	}

}

static int

gp100_ltc_oneinit(struct nvkm_ltc *ltc)

{

	struct nvkm_device *device = ltc->subdev.device;

	ltc->ltc_nr = nvkm_rd32(device, 0x12006c);

	ltc->lts_nr = nvkm_rd32(device, 0x17e280) >> 28;

	/*XXX: tagram allocation - TBD */

	return nvkm_mm_init(&ltc->tags, 0, 0, 1);

}

static void

gp100_ltc_init(struct nvkm_ltc *ltc)

{

	/*XXX: PMU LS call to setup tagram address */

}

static const struct nvkm_ltc_func

gp100_ltc = {

	.oneinit = gp100_ltc_oneinit,

	.init = gp100_ltc_init,

	.intr = gp100_ltc_intr,

	.cbc_clear = gm107_ltc_cbc_clear,

	.cbc_wait = gm107_ltc_cbc_wait,

	.zbc = 16,

	.zbc_clear_color = gm107_ltc_zbc_clear_color,

	.zbc_clear_depth = gm107_ltc_zbc_clear_depth,

	.invalidate = gf100_ltc_invalidate,

	.flush = gf100_ltc_flush,

};

int

gp100_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)

{

	return nvkm_ltc_new_(&gp100_ltc, device, index, pltc);

}