From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- .../gpu/drm/nouveau/nvkm/subdev/gpio/gf110.c | 84 ++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100644 kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/gf110.c (limited to 'kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/gf110.c') diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/gf110.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/gf110.c new file mode 100644 index 000000000..2c3bb255d --- /dev/null +++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/gf110.c @@ -0,0 +1,84 @@ +/* + * 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" + +void +gf110_gpio_reset(struct nvkm_gpio *gpio, u8 match) +{ + struct nvkm_bios *bios = nvkm_bios(gpio); + u8 ver, len; + u16 entry; + int ent = -1; + + while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver, &len))) { + u32 data = nv_ro32(bios, entry); + u8 line = (data & 0x0000003f); + u8 defs = !!(data & 0x00000080); + u8 func = (data & 0x0000ff00) >> 8; + u8 unk0 = (data & 0x00ff0000) >> 16; + u8 unk1 = (data & 0x1f000000) >> 24; + + if ( func == DCB_GPIO_UNUSED || + (match != DCB_GPIO_UNUSED && match != func)) + continue; + + gpio->set(gpio, 0, func, line, defs); + + nv_mask(gpio, 0x00d610 + (line * 4), 0xff, unk0); + if (unk1--) + nv_mask(gpio, 0x00d740 + (unk1 * 4), 0xff, line); + } +} + +int +gf110_gpio_drive(struct nvkm_gpio *gpio, int line, int dir, int out) +{ + u32 data = ((dir ^ 1) << 13) | (out << 12); + nv_mask(gpio, 0x00d610 + (line * 4), 0x00003000, data); + nv_mask(gpio, 0x00d604, 0x00000001, 0x00000001); /* update? */ + return 0; +} + +int +gf110_gpio_sense(struct nvkm_gpio *gpio, int line) +{ + return !!(nv_rd32(gpio, 0x00d610 + (line * 4)) & 0x00004000); +} + +struct nvkm_oclass * +gf110_gpio_oclass = &(struct nvkm_gpio_impl) { + .base.handle = NV_SUBDEV(GPIO, 0xd0), + .base.ofuncs = &(struct nvkm_ofuncs) { + .ctor = _nvkm_gpio_ctor, + .dtor = _nvkm_gpio_dtor, + .init = _nvkm_gpio_init, + .fini = _nvkm_gpio_fini, + }, + .lines = 32, + .intr_stat = g94_gpio_intr_stat, + .intr_mask = g94_gpio_intr_mask, + .drive = gf110_gpio_drive, + .sense = gf110_gpio_sense, + .reset = gf110_gpio_reset, +}.base; -- cgit 1.2.3-korg