/* * Analog Devices PPI header file * * Copyright (c) 2011 Analog Devices Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ #ifndef _PPI_H_ #define _PPI_H_ #include #include #include /* EPPI */ #ifdef EPPI_EN #define PORT_EN EPPI_EN #define PORT_DIR EPPI_DIR #define DMA32 0 #define PACK_EN PACKEN #endif /* EPPI3 */ #ifdef EPPI0_CTL2 #define PORT_EN EPPI_CTL_EN #define PORT_DIR EPPI_CTL_DIR #define PACK_EN EPPI_CTL_PACKEN #define DMA32 0 #define DLEN_8 EPPI_CTL_DLEN08 #define DLEN_16 EPPI_CTL_DLEN16 #endif struct ppi_if; struct ppi_params { u32 width; /* width in pixels */ u32 height; /* height in lines */ u32 hdelay; /* delay after the HSYNC in pixels */ u32 vdelay; /* delay after the VSYNC in lines */ u32 line; /* total pixels per line */ u32 frame; /* total lines per frame */ u32 hsync; /* HSYNC length in pixels */ u32 vsync; /* VSYNC length in lines */ int bpp; /* bits per pixel */ int dlen; /* data length for ppi in bits */ u32 ppi_control; /* ppi configuration */ u32 int_mask; /* interrupt mask */ }; struct ppi_ops { int (*attach_irq)(struct ppi_if *ppi, irq_handler_t handler); void (*detach_irq)(struct ppi_if *ppi); int (*start)(struct ppi_if *ppi); int (*stop)(struct ppi_if *ppi); int (*set_params)(struct ppi_if *ppi, struct ppi_params *params); void (*update_addr)(struct ppi_if *ppi, unsigned long addr); }; enum ppi_type { PPI_TYPE_PPI, PPI_TYPE_EPPI, PPI_TYPE_EPPI3, }; struct ppi_info { enum ppi_type type; int dma_ch; int irq_err; void __iomem *base; const unsigned short *pin_req; }; struct ppi_if { struct device *dev; unsigned long ppi_control; const struct ppi_ops *ops; const struct ppi_info *info; bool err_int; /* if we need request error interrupt */ bool err; /* if ppi has fifo error */ void *priv; }; struct ppi_if *ppi_create_instance(struct platform_device *pdev, const struct ppi_info *info); void ppi_delete_instance(struct ppi_if *ppi); #endif
path: root/include/uapi/asm-generic/sockios.h
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authorThomas Gleixner <tglx@linutronix.de>2017-01-31 19:03:21 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-01-31 20:22:18 +0100
commitaaaec6fc755447a1d056765b11b24d8ff2b81366 (patch)
treea7f4167960ee1df86739905b6ccdeb95465bfe5f /include/uapi/asm-generic/sockios.h
parent08d85f3ea99f1eeafc4e8507936190e86a16ee8c (diff)
x86/irq: Make irq activate operations symmetric
The recent commit which prevents double activation of interrupts unearthed interesting code in x86. The code (ab)uses irq_domain_activate_irq() to reconfigure an already activated interrupt. That trips over the prevention code now. Fix it by deactivating the interrupt before activating the new configuration. Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once" Reported-and-tested-by: Mike Galbraith <efault@gmx.de> Reported-and-tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: stable@vger.kernel.org Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos
Diffstat (limited to 'include/uapi/asm-generic/sockios.h')