/* mpihelp-mul_2.c - MPI helper functions * Copyright (C) 1994, 1996, 1997, 1998, 2001 Free Software Foundation, Inc. * * This file is part of GnuPG. * * GnuPG is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * GnuPG is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * * Note: This code is heavily based on the GNU MP Library. * Actually it's the same code with only minor changes in the * way the data is stored; this is to support the abstraction * of an optional secure memory allocation which may be used * to avoid revealing of sensitive data due to paging etc. * The GNU MP Library itself is published under the LGPL; * however I decided to publish this code under the plain GPL. */ #include "mpi-internal.h" #include "longlong.h" mpi_limb_t mpihelp_addmul_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size, mpi_limb_t s2_limb) { mpi_limb_t cy_limb; mpi_size_t j; mpi_limb_t prod_high, prod_low; mpi_limb_t x; /* The loop counter and index J goes from -SIZE to -1. This way * the loop becomes faster. */ j = -s1_size; res_ptr -= j; s1_ptr -= j; cy_limb = 0; do { umul_ppmm(prod_high, prod_low, s1_ptr[j], s2_limb); prod_low += cy_limb; cy_limb = (prod_low < cy_limb ? 1 : 0) + prod_high; x = res_ptr[j]; prod_low = x + prod_low; cy_limb += prod_low < x ? 1 : 0; res_ptr[j] = prod_low; } while (++j); return cy_limb; } mit/?h=nds-private-remove&id=a53e35db70d1638002e40d495d096181dbb0fe16'>commitdiff
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authorLee Jones <lee.jones@linaro.org>2016-06-06 16:56:50 +0100
committerPhilipp Zabel <p.zabel@pengutronix.de>2016-06-29 21:24:52 +0200
commita53e35db70d1638002e40d495d096181dbb0fe16 (patch)
tree67e68680dec862fff7b3dd2fd427f740a8aefaca
parent3c35f6edc09b239a60de87a5aeb78563fc372704 (diff)
reset: Ensure drivers are explicit when requesting reset lines
Phasing out generic reset line requests enables us to make some better decisions on when and how to (de)assert said lines. If an 'exclusive' line is requested, we know a device *requires* a reset and that it's preferable to act upon a request right away. However, if a 'shared' reset line is requested, we can reasonably assume sure that placing a device into reset isn't a hard requirement, but probably a measure to save power and is thus able to cope with not being asserted if another device is still in use. In order allow gentle adoption and not to forcing all consumers to move to the API immediately, causing administration headache between subsystems, this patch adds some temporary stand-in shim-calls. This will ease the burden at merge time and allow subsystems to migrate over to the new API in a more realistic time-frame. Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Diffstat
-rw-r--r--include/linux/reset.h106
1 files changed, 82 insertions, 24 deletions
diff --git a/include/linux/reset.h b/include/linux/reset.h