From cf9610f9116d55c5a66ef9f1faecacabd93a9322 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Mon, 24 Aug 2026 08:46:03 -0700 Subject: Merge tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "Core changes: - Use the non-blocking mux_state_try_select() in the generic MUX pin control back-end - Free pin maps on pinctrl_generic_to_map() failure in the core helpers New hardware pin control: - Qualcomm Maili TLMM SoC, PMG1110 PMIC, and Eliza LPASS LPI TLMM SoC (this is for the low power audio, LPASS = Low Power Audio SubSystem portions) - Upboard support on top of the Intel pin controller - Apple T6030 and T6031 support (just compatible strings) - Samsung Exynos 8855 SoC - Mediatek MT6858 SoC - Rockchip RK3308B and RV1106 SoCs - Airoha EN7523 and AN7563 SoCs Improvements: - Qualcomm TLMM GPIOs are unconditionally marked as wakeup capable - Qualcomm improvements on top of the Qualcomm PDC (power domain controller) irqchip improvements from tglx:s tree - Qualcomm IPQ806x and IPQ9650 non-urgent pin grop fixups - The NPCM8xx driver has been put into shape fixing many pin and group definitions - Some non-urgent Tegra 264 pin assignments are fixed up - Some non-urgent fixups to Airoha AN7581 and AN7583 registers and pin assignments, missing features etc" * tag 'pinctrl-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (130 commits) dt-bindings: pinctrl: Convert TI DA850 pupd to DT schema pinctrl: meson: sync some modify from A4 pinctrl: meson: a4: Add input enable pin configuration pinctrl: realtek: rtd1625: remove unused group name spdif_sel pinctrl: realtek: rtd1625: fix base_bit for VE4 GPIO 13 dt-bindings: pinctrl: microchip,pic32mzda-pinctrl: Convert to DT schema Revert "Merge branch 'ib-rsk7204' into devel" pinctrl: rockchip: Add RV1106 pinctrl support dt-bindings: pinctrl: rockchip: Add RV1106 compatible pinctrl: rockchip: Decode drive strength in the get function pinctrl: fix PINCTRL_GENERIC_MUX not always being selectable pinctrl: airoha: add support of an7563 SoC dt-bindings: pinctrl: airoha: add support of an7563 pin controller pinctrl: airoha: try to find chip scu node by phandle first pinctrl: airoha: add support of en7523 SoC dt-bindings: pinctrl: airoha: add support of en7523 pin controller pinctrl: airoha: an7583: add support for olt pinmux pinctrl: airoha: an7583: add support for pon_alt pinmux pinctrl: airoha: an7583: add support for npu_uart pinmux dt-bindings: pinctrl: airoha: an7583: add missed features ... --- arch/parisc/lib/memcpy.c | 73 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 arch/parisc/lib/memcpy.c (limited to 'arch/parisc/lib/memcpy.c') diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c new file mode 100644 index 000000000..03165c82d --- /dev/null +++ b/arch/parisc/lib/memcpy.c @@ -0,0 +1,73 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Optimized memory copy routines. + * + * Copyright (C) 2004 Randolph Chung + * Copyright (C) 2013-2017 Helge Deller + * + * Portions derived from the GNU C Library + * Copyright (C) 1991, 1997, 2003 Free Software Foundation, Inc. + */ + +#include +#include +#include +#include + +#define get_user_space() mfsp(SR_USER) +#define get_kernel_space() SR_KERNEL + +/* Returns 0 for success, otherwise, returns number of bytes not transferred. */ +extern unsigned long pa_memcpy(void *dst, const void *src, + unsigned long len); + +unsigned long raw_copy_to_user(void __user *dst, const void *src, + unsigned long len) +{ + mtsp(get_kernel_space(), SR_TEMP1); + mtsp(get_user_space(), SR_TEMP2); + return pa_memcpy((void __force *)dst, src, len); +} +EXPORT_SYMBOL(raw_copy_to_user); + +unsigned long raw_copy_from_user(void *dst, const void __user *src, + unsigned long len) +{ + unsigned long start = (unsigned long) src; + unsigned long end = start + len; + unsigned long newlen = len; + + mtsp(get_user_space(), SR_TEMP1); + mtsp(get_kernel_space(), SR_TEMP2); + + /* Check region is user accessible */ + while (start < end) { + if (!prober_user(SR_TEMP1, start)) { + newlen = (start - (unsigned long) src); + break; + } + start += PAGE_SIZE; + /* align to page boundry which may have different permission */ + start = PAGE_ALIGN_DOWN(start); + } + return len - newlen + pa_memcpy(dst, (void __force *)src, newlen); +} +EXPORT_SYMBOL(raw_copy_from_user); + +void * memcpy(void * dst,const void *src, size_t count) +{ + mtsp(get_kernel_space(), SR_TEMP1); + mtsp(get_kernel_space(), SR_TEMP2); + pa_memcpy(dst, src, count); + return dst; +} + +EXPORT_SYMBOL(memcpy); + +bool copy_from_kernel_nofault_allowed(const void *unsafe_src, size_t size) +{ + if ((unsigned long)unsafe_src < PAGE_SIZE) + return false; + /* check for I/O space F_EXTEND(0xfff00000) access as well? */ + return true; +} -- cgit v1.3.1