/* * s3c24xx/s3c64xx SoC series Camera Interface (CAMIF) driver * * Copyright (C) 2012 Sylwester Nawrocki * * 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. */ #ifndef MEDIA_S3C_CAMIF_ #define MEDIA_S3C_CAMIF_ #include #include /** * struct s3c_camif_sensor_info - an image sensor description * @i2c_board_info: pointer to an I2C sensor subdevice board info * @clock_frequency: frequency of the clock the host provides to a sensor * @mbus_type: media bus type * @i2c_bus_num: i2c control bus id the sensor is attached to * @flags: the parallel bus flags defining signals polarity (V4L2_MBUS_*) * @use_field: 1 if parallel bus FIELD signal is used (only s3c64xx) */ struct s3c_camif_sensor_info { struct i2c_board_info i2c_board_info; unsigned long clock_frequency; enum v4l2_mbus_type mbus_type; u16 i2c_bus_num; u16 flags; u8 use_field; }; struct s3c_camif_plat_data { struct s3c_camif_sensor_info sensor; int (*gpio_get)(void); int (*gpio_put)(void); }; /* Platform default helper functions */ int s3c_camif_gpio_get(void); int s3c_camif_gpio_put(void); #endif /* MEDIA_S3C_CAMIF_ */ acket-rx-pump-back'>packet-rx-pump-back net-next plumbingsTobias Klauser
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /net/ipv4/route.c
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'net/ipv4/route.c')