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* hwmon: (ltc2978) Add support for LTC3886Guenter Roeck2015-08-184-13/+39
| | | | | | | | | | LTC3886 is a is a dual PolyPhase DC/DC synchronous step-down switching regulator controller. It is mostly command compatible to LTC3883, but supports two phases instead of one. Suggested-by: Michael Jones <mike@proclivis.com> Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Add support for LTC2980 and LTM2987Guenter Roeck2015-08-184-19/+58
| | | | | | | | | | LTC2980 and LTM2987 are command compatible to LTC2977. They consist of two LTC2977 on a single die, and are instantiated as two separate chips, each supporting eight channels. Suggested-by: Michael Jones <mike@proclivis.com> Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Add missing chip IDs for LTC2978 and LTC3882Guenter Roeck2015-08-181-3/+8
| | | | | | | | | | | Add additional chip ID for an older revision of LTC2978, as well as two chip IDs for LTC3882. Turns out the LTC3882 does support the LTC2978_MFR_SPECIAL_ID register, and reading it returns its chip ID, but the register is undocumented. Suggested-by: Michael Jones <mike@proclivis.com> Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Use correct ID mask to detect all chipsGuenter Roeck2015-08-181-22/+17
| | | | | | | | | | Per information from Linear Technologies, the ID mask is 12 bit for all chips of this series. Use this mask to detect chips to ensure that all chip revisions are detected. Suggested-by: Michael Jones <mike@proclivis.com> Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Introduce helper functions for min and max valuesGuenter Roeck2015-08-171-91/+57
| | | | | | | | The code used to determine historic low and high peaks is repeated several times. Introduce helper functions to simplify it. Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Introduce feature flagsGuenter Roeck2015-08-171-12/+18
| | | | | | | | It is becoming cumbersom to track per-chip feature support. Introduce feature flag to simplify the code. Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Convert command register definitions to enumGuenter Roeck2015-08-171-140/+142
| | | | | | | This will simplify adding new virtual commands. Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Add support for LTC2975Guenter Roeck2015-08-174-33/+125
| | | | | | | | LTC2975 is mostly compatible to LTC2974, but supports input current and power measurement. Tested-by: Michael Jones <mike@proclivis.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Add support for LTC3887Guenter Roeck2015-08-124-13/+29
| | | | | | LTC3887 is an enhanced version of LTC3880 and supports the same commands. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Add additional chip IDs for LTM4676 and LTM4676AGuenter Roeck2015-08-121-2/+6
| | | | | | | | | | | | | | | Per datasheet, the chip ID for LTM4676 is 0x448x. This was observed in real systems. In addition to that, chip ID 0x4401 was observed as well. Research shows that the chip ID has been changed from 0x440x to 0x448x in datasheet revision C. Add support for the additional chip ID. Also add the chip ID for LTM4676A, which is functionally identical to LTM4676. Reported-by: Ananda Babu Nettam <anandab@juniper.net> Cc: Ananda Babu Nettam <anandab@juniper.net> Cc: Amit U Jain <amjain@juniper.net> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Add support for LTC3882Guenter Roeck2015-08-123-17/+62
| | | | | | | | LTC3882 is mostly compatible with LTC3880. Major differences are that it does not measure the input current, and it no longer supports LTC's legacy mechanism to identify the chip. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) Move code to read chip ID into separate functionGuenter Roeck2015-08-121-19/+29
| | | | | | | | | Verifying the chip type is getting more complicated with new chips, since not all chips support the same mechanism to read the chip type. Move the code into a separate function to simplify adding support for those chips. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon:change sht15_reverse()yalin wang2015-08-111-16/+4
| | | | | | | This change sht15_reverse() to be generic bitrev8(). Signed-off-by: yalin wang <yalin.wang2010@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Add device IDs for TPS544{B,C}2{0,5}Guenter Roeck2015-08-113-3/+12
| | | | | | | | Add device IDs and references for Texas Instruments TPS544B20, TPS544B25, TPS544C20, and TPS544C25 to the generic PMBus driver. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Add support for MAX20751Guenter Roeck2015-08-095-0/+159
| | | | | | | | | | | MAX20751 is a multiphase power controller with internal buck converter. It uses VR12.0 to report the output voltage. This requires an explicit driver, since the VR version can not be auto-detected. The chip supports a manufacturer specific command to fine-tune the output voltage. This command is not currently supported. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Add support for VR12Guenter Roeck2015-08-093-4/+15
| | | | | | Newer chips such as MAX20751 support VR12. Add support for it. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (it87) Add support for IT8732FJustin Maggard2015-08-093-22/+60
| | | | | | | | | Add support for the IT8732F. This chip is pretty similar to IT8721F, with the main difference being that the ADC LSB is 10.9 mV instead of 12 mV. Signed-off-by: Justin Maggard <jmaggard@netgear.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add auto_point attributesConstantine Shulyupin2015-08-092-6/+127
| | | | | | | | | Introduced REG_PWM, pwm[1..3]_auto_point[1..5]_temp, pwm[1..3]_auto_point[1..5]_pwm, nct7802_auto_point_attrs, nct7802_auto_point_group, updated nct7802_regmap_is_volatile Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (lm70) add device tree supportRabin Vincent2015-08-092-1/+54
| | | | | | | Allow the lm70 to be probed from a device tree. Signed-off-by: Rabin Vincent <rabin@rab.in> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (ltc2978) LTM4676 supports CLEAR_PEAKSGuenter Roeck2015-08-091-1/+1
| | | | | | | Use the CLEAR_PEAKS command on LTM4676. Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (adm1275) Add support for ADM1293 and ADM1294Guenter Roeck2015-08-093-27/+158
| | | | | | | | ADM1293 and ADM1294 are mostly compatible with other chips of the same series, but have more configuration options. There are also some differences in register details. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Add support for lowest power value attributesGuenter Roeck2015-08-092-24/+34
| | | | | | Add support for powerX_input_lowest for both input and output power. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (adm1275) Introduce new feature flagsGuenter Roeck2015-08-091-43/+54
| | | | | | | | | | Introduce have_vout, have_vaux_status, have_pin_max, and have_uc_fault to simplify adding support for new chips. Also simplify error returns where appropriate to return immediately on error. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (adm1275) Introduce configuration data structure for coeffcientsGuenter Roeck2015-08-091-45/+68
| | | | | | | | Each new chip supported by the driver has a new set of coefficients, making hard-coding coefficients more and more cumbersome. Introduce a datastructure and table to simplify configuration. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (adm1275) Use BIT macroGuenter Roeck2015-08-091-9/+10
| | | | | | Use BIT macro to simplify adding new bit masks. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus_core) Constify pmbus_regulator_opsAxel Lin2015-08-092-2/+2
| | | | | | | pmbus_regulator_ops is not modified after initialized, so make it const. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (pmbus) Explicitly set regulator type for pmbus_regulator_opsAxel Lin2015-08-091-0/+1
| | | | | | | | The pmbus_regulator_ops is for voltage regulators, so explicitly set regulator type for better readability. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (g762) Drop owner assignment from struct i2c_driverKrzysztof Kozlowski2015-08-091-1/+0
| | | | | | | | i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (f71882fg) Add support for f81768dGeorge Joseph2015-08-091-16/+29
| | | | | | | | | Add f81768d (id 0x1210) currently found on Jetway motherboards. It has 11 voltages but otherwise needed no special handling in this driver. Signed-off-by: George Joseph <george.joseph@fairview5.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add pwmX_enable attributeConstantine Shulyupin2015-08-091-0/+48
| | | | | | | | Introduced REG_SMARTFAN_EN, SMARTFAN_EN_SHIFT, pwmX_enable, show_pwm_enable, store_pwm_enable. Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon:(f71882fg) Fix f81866a voltage protectionPeter Hung2015-08-091-9/+41
| | | | | | | | | | | The f81866a voltage-1 protector(VIN1) address is differ from f71882. f71882 status:12H, beep:13H, v-high:32H f81866a status:16H, beep:17H, v-high:3aH Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (f71882fg) Fix f81866a temp/beep settingPeter Hung2015-08-091-8/+52
| | | | | | | | | | | | | | | | | The temperature value of Fintek F81866 is the same with f71882fg. It located with 0x6c + 2*(nr), others located with 0x6c + 2*(nr+1). We change the rule in f71882fg_probe(), If type = f71858fg/f8000/f81866a. the temp_start will set to 0, others are 1. The F81866 over-temperature beep setting is not the same with f71882fg too. They are using the same address 63H, but F81866 is using bit 0/1/2 & 4/5/6, others are using bit 1/2/3 & 5/6/7, So we copy from fxxxx_temp_beep_attr[] to f81866_temp_beep_attr and change bit setting. Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (f71882fg) Add support for F81866 and F71868Peter Hung2015-08-091-15/+38
| | | | | | | | | | | Add New Fintek SuperIO F81866(0x1010) & F71868(0x1106) with H/W Monitor functions. We increased F71882FG_MAX_INS from 9 to 10 to read F71868 10 voltage sets. Signed-off-by: Peter Hung <hpeter+linux_kernel@gmail.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add pwm mode attributesConstantine Shulyupin2015-08-091-0/+26
| | | | | | Introduced: show_pwm_mode, pwm1_mode, pwm2_mode, pwm2_mode Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) Add pwm controlConstantine Shulyupin2015-08-091-0/+47
| | | | | | | | | Added fan output control registers. Modes of operation are PWM (default) and DC. Introduced show_pwm, store_pwm, nct7802_pwm_attrs, nct7802_pwm_group. Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* hwmon: (nct7802) add temperature sensor type attributeConstantine Shulyupin2015-08-091-12/+60
| | | | | | | | | | | | | | Sensor type: 3 diode (current mode), MD=1 4 thermistor, MD=2 Reference: Nuvoton Hardware Monitoring IC NCT7802Y 7.2.32 Mode Selection Register Location : Index 22h Signed-off-by: Constantine Shulyupin <const@MakeLinux.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net>
* Linux 4.2-rc6v4.2-rc6Linus Torvalds2015-08-091-1/+1
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* Merge branch 'for-linus' of ↵Linus Torvalds2015-08-097-8/+35
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input subsystem fixes from Dmitry Torokhov: "Just small ALPS and Elan touchpads, and other driver fixups" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: elantech - add special check for fw_version 0x470f01 touchpad Input: twl4030-vibra - fix ERROR: Bad of_node_put() warning Input: alps - only Dell laptops have separate button bits for v2 dualpoint sticks Input: axp20x-pek - add module alias Input: turbografx - fix potential out of bound access
| * Input: elantech - add special check for fw_version 0x470f01 touchpadDuson Lin2015-08-072-2/+21
| | | | | | | | | | | | | | | | | | It is no need to check the packet[0] for sanity check when doing elantech_packet_check_v4() function for fw_version = 0x470f01 touchpad. Signed-off by: Duson Lin <dusonlin@emc.com.tw> Reviewed-by: Ulrik De Bie <ulrik.debie-os@e2big.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * Input: twl4030-vibra - fix ERROR: Bad of_node_put() warningMarek Belisko2015-08-051-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix following: [ 8.862274] ERROR: Bad of_node_put() on /ocp/i2c@48070000/twl@48/audio [ 8.869293] CPU: 0 PID: 1003 Comm: modprobe Not tainted 4.2.0-rc2-letux+ #1175 [ 8.876922] Hardware name: Generic OMAP36xx (Flattened Device Tree) [ 8.883514] [<c00159e0>] (unwind_backtrace) from [<c0012488>] (show_stack+0x10/0x14) [ 8.891693] [<c0012488>] (show_stack) from [<c05cb810>] (dump_stack+0x78/0x94) [ 8.899322] [<c05cb810>] (dump_stack) from [<c02cfd5c>] (kobject_release+0x68/0x7c) [ 8.907409] [<c02cfd5c>] (kobject_release) from [<bf0040c4>] (twl4030_vibra_probe+0x74/0x188 [twl4030_vibra]) [ 8.917877] [<bf0040c4>] (twl4030_vibra_probe [twl4030_vibra]) from [<c03816ac>] (platform_drv_probe+0x48/0x90) [ 8.928497] [<c03816ac>] (platform_drv_probe) from [<c037feb4>] (really_probe+0xd4/0x238) [ 8.937103] [<c037feb4>] (really_probe) from [<c0380160>] (driver_probe_device+0x30/0x48) [ 8.945678] [<c0380160>] (driver_probe_device) from [<c03801e0>] (__driver_attach+0x68/0x8c) [ 8.954589] [<c03801e0>] (__driver_attach) from [<c037ea60>] (bus_for_each_dev+0x50/0x84) [ 8.963226] [<c037ea60>] (bus_for_each_dev) from [<c037f828>] (bus_add_driver+0xcc/0x1e4) [ 8.971832] [<c037f828>] (bus_add_driver) from [<c0380b60>] (driver_register+0x9c/0xe0) [ 8.980255] [<c0380b60>] (driver_register) from [<c00097e0>] (do_one_initcall+0x100/0x1b8) [ 8.988983] [<c00097e0>] (do_one_initcall) from [<c00b8008>] (do_init_module+0x58/0x1c0) [ 8.997497] [<c00b8008>] (do_init_module) from [<c00b8cac>] (SyS_init_module+0x54/0x64) [ 9.005950] [<c00b8cac>] (SyS_init_module) from [<c000ed20>] (ret_fast_syscall+0x0/0x54) [ 9.015838] input: twl4030:vibrator as /devices/platform/68000000.ocp/48070000.i2c/i2c-0/0-0048/48070000.i2c:twl@48:audio/input/input2 node passed to of_find_node_by_name is put inside that function and new node is returned if found. Free returned node not already freed node. Signed-off-by: Marek Belisko <marek@goldelico.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * Input: alps - only Dell laptops have separate button bits for v2 dualpoint ↵Hans de Goede2015-08-032-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sticks It turns out that only Dell laptops have the separate button bits for v2 dualpoint sticks and that commit 92bac83dd79e ("Input: alps - non interleaved V2 dualpoint has separate stick button bits") causes regressions on Toshiba laptops. This commit adds a check for Dell laptops to the code for handling these extra button bits, fixing this regression. This patch has been tested on a Dell Latitude D620 to make sure that it does not reintroduce the original problem. Reported-and-tested-by: Douglas Christman <douglaschristman@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * Input: axp20x-pek - add module aliasChen-Yu Tsai2015-08-031-0/+1
| | | | | | | | | | | | | | | | Add a proper module alias so the driver can be autoloaded when the parent axp20x mfd driver registers its cells. Signed-off-by: Chen-Yu Tsai <wens@csie.org> Acked-by: Carlo Caione <carlo@caione.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
| * Input: turbografx - fix potential out of bound accessDmitry Torokhov2015-08-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch 17dd3f0f7aa7: "[PATCH] drivers/input/joystick: convert to dynamic input_dev allocation" from Sep 15, 2005, leads to the following static checker warning: drivers/input/joystick/turbografx.c:235 tgfx_probe() error: buffer overflow 'tgfx_buttons' 5 <= 5 drivers/input/joystick/turbografx.c 195 for (i = 0; i < n_devs; i++) { 196 if (n_buttons[i] < 1) 197 continue; 198 199 if (n_buttons[i] > 6) { ^^^^^^^^^^^^^^^^ Possibly off by one. >= 6. Let's change the upper value to ARRAY_SIZE(tgfx_buttons) to ensure we do not reach past the end of the array. Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
* | Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds2015-08-0931-62/+130
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull MIPS fixes from Ralf Baechle: "Another round of MIPS fixes for 4.2. No area does particularly stand out but we have a two unpleasant ones: - Kernel ptes are marked with a global bit which allows the kernel to share kernel TLB entries between all processes. For this to work both entries of an adjacent even/odd pte pair need to have the global bit set. There has been a subtle race in setting the other entry's global bit since ~ 2000 but it take particularly pathological workloads that essentially do mostly vmalloc/vfree to trigger this. This pull request fixes the 64-bit case but leaves the case of 32 bit CPUs with 64 bit ptes unsolved for now. The unfixed cases affect hardware that is not available in the field yet. - Instruction emulation requires loading instructions from user space but the current fast but simplistic approach will fail on pages that are PROT_EXEC but !PROT_READ. For this reason we temporarily do not permit this permission and will map pages with PROT_EXEC | PROT_READ. The remainder of this pull request is more or less across the field and the short log explains them well" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Make set_pte() SMP safe. MIPS: Replace add and sub instructions in relocate_kernel.S with addiu MIPS: Flush RPS on kernel entry with EVA Revert "MIPS: BCM63xx: Provide a plat_post_dma_flush hook" MIPS: BMIPS: Delete unused Kconfig symbol MIPS: Export get_c0_perfcount_int() MIPS: show_stack: Fix stack trace with EVA MIPS: do_mcheck: Fix kernel code dump with EVA MIPS: SMP: Don't increment irq_count multiple times for call function IPIs MIPS: Partially disable RIXI support. MIPS: Handle page faults of executable but unreadable pages correctly. MIPS: Malta: Don't reinitialise RTC MIPS: unaligned: Fix build error on big endian R6 kernels MIPS: Fix sched_getaffinity with MT FPAFF enabled MIPS: Fix build with CONFIG_OF=y for non OF-enabled targets CPUFREQ: Loongson2: Fix broken build due to incorrect include.
| * | MIPS: Make set_pte() SMP safe.David Daney2015-08-051-0/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On MIPS the GLOBAL bit of the PTE must have the same value in any aligned pair of PTEs. These pairs of PTEs are referred to as "buddies". In a SMP system is is possible for two CPUs to be calling set_pte() on adjacent PTEs at the same time. There is a race between setting the PTE and a different CPU setting the GLOBAL bit in its buddy PTE. This race can be observed when multiple CPUs are executing vmap()/vfree() at the same time. Make setting the buddy PTE's GLOBAL bit an atomic operation to close the race condition. The case of CONFIG_64BIT_PHYS_ADDR && CONFIG_CPU_MIPS32 is *not* handled. Signed-off-by: David Daney <david.daney@cavium.com> Cc: <stable@vger.kernel.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10835/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Replace add and sub instructions in relocate_kernel.S with addiuJames Cowgill2015-08-031-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes the assembler errors generated when compiling a MIPS R6 kernel with CONFIG_KEXEC on, by replacing the offending add and sub instructions with addiu instructions. Build errors: arch/mips/kernel/relocate_kernel.S: Assembler messages: arch/mips/kernel/relocate_kernel.S:27: Error: invalid operands `dadd $16,$16,8' arch/mips/kernel/relocate_kernel.S:64: Error: invalid operands `dadd $20,$20,8' arch/mips/kernel/relocate_kernel.S:65: Error: invalid operands `dadd $18,$18,8' arch/mips/kernel/relocate_kernel.S:66: Error: invalid operands `dsub $22,$22,1' scripts/Makefile.build:294: recipe for target 'arch/mips/kernel/relocate_kernel.o' failed Signed-off-by: James Cowgill <James.Cowgill@imgtec.com> Cc: <stable@vger.kernel.org> # 4.0+ Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10558/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Flush RPS on kernel entry with EVAJames Hogan2015-08-031-0/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When EVA is enabled, flush the Return Prediction Stack (RPS) present on some MIPS cores on entry to the kernel from user mode. This is important specifically for interAptiv with EVA enabled, otherwise kernel mode RPS mispredicts may trigger speculative fetches of user return addresses, which may be sensitive in the kernel address space due to EVA's overlapping user/kernel address spaces. Signed-off-by: James Hogan <james.hogan@imgtec.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Markos Chandras <markos.chandras@imgtec.com> Cc: Leonid Yegoshin <leonid.yegoshin@imgtec.com> Cc: linux-mips@linux-mips.org Cc: <stable@vger.kernel.org> # 3.15.x- Patchwork: https://patchwork.linux-mips.org/patch/10812/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | Revert "MIPS: BCM63xx: Provide a plat_post_dma_flush hook"Florian Fainelli2015-08-031-10/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit 3cf29543413207d3ab1c3f62a88c09bb46f2264e ("MIPS: BCM63xx: Provide a plat_post_dma_flush hook") since this commit was found to prevent BCM6358 (early BMIPS4350 cores) and some BCM6368 (BMIPS4380 cores) from booting reliably. Alvaro was able to track this down to an issue specifically located to devices that use the second thread (TP1) when booting. Since BCM63xx did not have a need for plat_post_dma_flush() hook before, let's just keep things the way they were. Reported-by: Álvaro Fernández Rojas <noltari@gmail.com> Reported-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: stable@vger.kernel.org Cc: Kevin Cernekee <cernekee@gmail.com> Cc: Nicolas Schichan <nschichan@freebox.fr> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: noltari@gmail.com Cc: jogo@openwrt.org Cc: Florian Fainelli <f.fainelli@gmail.com> Cc: stable@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/10804/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: BMIPS: Delete unused Kconfig symbolKevin Cernekee2015-08-031-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This was left over from an earlier iteration of the BMIPS irqchip changes. It doesn't actually have an effect, so let's nuke it. Reported-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Kevin Cernekee <cernekee@chromium.org> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Cc: stable@vger.kernel.org # v4.1+ Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/9910/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
| * | MIPS: Export get_c0_perfcount_int()Felix Fietkau2015-08-036-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | get_c0_perfcount_int is tested from oprofile code. If oprofile is compiled as module, get_c0_perfcount_int needs to be exported, otherwise it cannot be resolved. Fixes: a669efc4a3b4 ("MIPS: Add hook to get C0 performance counter interrupt") Cc: stable@vger.kernel.org # v3.19+ Signed-off-by: Felix Fietkau <nbd@openwrt.org> Cc: linux-mips@linux-mips.org Cc: abrestic@chromium.org Patchwork: https://patchwork.linux-mips.org/patch/10763/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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