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2015-09-03MIPS: math-emu: Add support for the MIPS R6 MAX{, A} FPU instructionMarkos Chandras5-2/+480
MIPS R6 introduced the following instruction: Scalar Floating-Point Maximum and Scalar Floating-Point argument with Maximum Absolute Value MAX.fmt writes the maximum value of the inputs fs and ft to the destination fd. MAXA.fmt takes input arguments fs and ft and writes the argument with the maximum absolute value to the destination fd. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10961/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 MIN{, A} FPU instructionMarkos Chandras5-2/+480
MIPS R6 introduced the following instruction: Scalar Floating-Point Minimum and Scalar Floating-Point argument with Minimum Absolute Value MIN.fmt writes the minimum value of the inputs fs and ft to the destination fd. MINA.fmt takes input arguments fs and ft and writes the argument with the minimum absolute value to the destination fd. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10960/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 CLASS FPU instructionMarkos Chandras5-2/+138
MIPS R6 introduced the following instruction: Stores in fd a bit mask reflecting the floating-point class of the floating point scalar value fs. CLASS.fmt: FPR[fd] = class(FPR[fs]) Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10959/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 RINT FPU instructionMarkos Chandras1-0/+24
MIPS R6 introduced the following instruction: Floating-Point Round to Integral Scalar floating-point round to integral floating point value. RINT.fmt: FPR[fd] = round_int(FPR[fs]) Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10958/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 MSUBF FPU instructionMarkos Chandras5-2/+559
MIPS R6 introduced the following instruction: Floating Point Fused Multiply Subtract: MSUBF.fmt To perform a fused multiply-subtract of FP values. MSUBF.fmt: FPR[fd] = FPR[fd] - (FPR[fs] x FPR[ft]) Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10957/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 MADDF FPU instructionMarkos Chandras5-2/+553
MIPS R6 introduced the following instruction: Floating Point Fused Multiply Add: MADDF.fmt To perform a fused multiply-add of FP values. MADDF.fmt: FPR[fd] = FPR[fd] + (FPR[fs] x FPR[ft]) Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10956/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 SELNEZ FPU instructionMarkos Chandras1-0/+22
MIPS R6 introduced the following instruction: SELNEZ.fmt: FPR[fd]  FPR[ft].bit0 ? FPR[fs] : 0 Add support for emulating the single and double precision formats of the said instruction. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10955/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the MIPS R6 SELEQZ FPU instructionMarkos Chandras1-0/+23
MIPS R6 introduced the following instruction: SELEQZ.fmt: FPR[fd]  FPR[ft].bit0 ? 0 : FPR[fs] Add support for emulating the single and double precision formats of the said instruction. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10954/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: math-emu: Add support for the CMP.condn.fmt R6 instructionMarkos Chandras1-9/+121
Add support for emulating the new CMP.condn.fmt R6 instructions and return SIGILL for the old C.cond.fmt if R2 emulation is not enabled since it's not supported by R6. The functionality of the new CMP.condn.fmt is the following one: If the comparison specified by the condn field of the instruction is true for the operand values, the result is true; otherwise, the result is false. If no exception is taken, the result is written into FPR fd; true is all 1s and false is all 0s repeated the operand width of fmt. All other bits beyond the operand width fmt are UNPREDICTABLE. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10953/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: inst.h: Add new MIPS R6 FPU opcodesMarkos Chandras1-2/+7
Add opcodes for the new MIPS R6 FPU instructions. Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10952/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Fix management port MII address on Kontron S1901Aaro Koskinen2-0/+8
Management port MII address is incorrect on Kontron S1901 resulting in broken networking. Fix by providing definitions for the in-tree DT pruning code. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10914/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: BCM47xx: Use kmemdup rather than duplicating its implementationAndrzej Hajda1-2/+1
The patch was generated using fixed coccinelle semantic patch scripts/coccinelle/api/memdup.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2014320 Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> Acked-by: Hauke Mehrtens <hauke@hauke-m.de> Cc: Hauke Mehrtens <hauke@hauke-m.de> Cc: Rafał Miłecki <zajec5@gmail.com> Cc: Andrzej Hajda <a.hajda@samsung.com> Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Cc: Marek Szyprowski <m.szyprowski@samsung.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/10898/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03STAGING: Octeon: Use common helpers for determining interface and portJanne Huttunen1-11/+11
Currently the Octeon Ethernet driver hardcodes the mapping between interface/port and IPD port number. Since we have generic helpers for the very same purpose, we might as well use them instead. This prevents having the same information in multiple places. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10975/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Support interfaces 4 and 5Janne Huttunen1-0/+12
Add the support for mapping between interface/port numbers and IPD port numbers also for the additional interfaces some Octeon II models have. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10967/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Set up 1:1 mapping between CN68XX PKO queues and portsJanne Huttunen1-0/+3
Use the internal port number also as the queue number on CN68XX. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10962/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Initialize CN68XX PKOJanne Huttunen1-5/+144
CN68XX requires a different PKO configuration. This patch provides just enough setup to get the XAUI interfaces on CN6880 working with default parameters. Signed-off-by: Janne Huttunen <janne.huttunen@nsn.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10974/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03STAGING: Octeon: Support CN68XX style WQEJanne Huttunen5-98/+304
CN68XX has a bit different WQE structure. This patch provides the new definitions and converts the code to use the proper variant based on the actual model. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10973/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03STAGING: Octeon: Increase output command buffersJanne Huttunen1-1/+1
The Octeon II models have more interfaces and thus require more output command buffers. Increase the allocation to support these models. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10965/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03STAGING: Octeon: Set SSO group mask properly on CN68XXAaro Koskinen1-4/+17
CN68XX uses SSO instead of POW. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10966/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03STAGING: Octeon: Properly enable/disable SSO WQE interruptsAaro Koskinen2-16/+43
The Octeon models with SSO instead of POW need to use a different register for configuring the WQE interrupt thresholds. Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10964/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Add definitions for setting up SSOJanne Huttunen1-0/+29
Some Octeon II models have SSO instead of POW and use a different register for setting the interrupt thresholds. Add the necessary definitions for configuring the interrupts also on those models. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10972/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Configure minimum PKO packet sizes on CN68XXJanne Huttunen1-0/+15
CN68XX has common minimum packet size filters that need to be configured for the traffic to work. Just set them to a default value. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10963/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Configure XAUI pkindsJanne Huttunen1-0/+7
Configure the pkinds of XAUI interfaces on Octeon models that have them. This simple configuration uses 1:1 mapping between the PIP input port number and the selected pkind. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10971/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Support all PIP input ports on CN68XXJanne Huttunen1-1/+1
CN68XX has 48 PIP input ports. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10969/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Support additional interfaces on CN68XXJanne Huttunen1-0/+2
CN68XX has 9 interfaces. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: https://patchwork.linux-mips.org/patch/10968/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: Octeon: Fix CN6880 hang on XAUI initJanne Huttunen1-1/+6
Some CN68XX series Octeon II chips seem to hang if a reset is issued on XAUI initialization. Avoid the hang by disabling the reset on affected models. Tested on Cavium EBB6800 evaluation board and Kontron S1901 board. Signed-off-by: Janne Huttunen <janne.huttunen@nokia.com> Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com> Acked-by: David Daney <david.daney@cavium.com> Cc: David Daney <ddaney.cavm@gmail.com> Cc: linux-mips@linux-mips.org Cc: Janne Huttunen <janne.huttunen@nokia.com> Cc: Aaro Koskinen <aaro.koskinen@nokia.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: devel@driverdev.osuosl.org Patchwork: http://patchwork.linux-mips.org/patch/10970/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03MIPS: pistachio: Allow to enable the external timer based clocksourceEzequiel Garcia2-0/+14
This commit introduces a new config, so the user can choose to enable the General Purpose Timer based clocksource. This option is required to have CPUFreq support. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: devicetree@vger.kernel.org Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Bresticker <abrestic@chromium.org> Cc: James Hartley <James.Hartley@imgtec.com> Cc: Govindraj Raja <Govindraj.Raja@imgtec.com> Cc: Damien Horsley <Damien.Horsley@imgtec.com> Cc: James Hogan <James.Hogan@imgtec.com> Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Patchwork: http://patchwork.linux-mips.org/patch/10887/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-09-03CLOCKSOURCE: Add Pistachio clocksource-only driverEzequiel Garcia3-0/+222
The Pistachio SoC provides four general purpose timers, and allow to implement a clocksource driver. This driver can be used as a replacement for the MIPS GIC and MIPS R4K clocksources and sched clocks, which are clocked from the CPU clock. Given the general purpose timers are clocked from an independent clock, this new clocksource driver will be useful to introduce CPUFreq support for Pistachio machines. Signed-off-by: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: devicetree@vger.kernel.org Cc: Andrew Bresticker <abrestic@chromium.org> Cc: James Hartley <James.Hartley@imgtec.com> Cc: Damien Horsley <Damien.Horsley@imgtec.com> Cc: James Hogan <James.Hogan@imgtec.com> Cc: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/10899/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>