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path: root/arch/mips/cavium-octeon/csrc-octeon.c
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* mips: add export.h to files using EXPORT_SYMBOL/THIS_MODULEPaul Gortmaker2011-10-311-0/+1
| | | | | | | | | | Or else we get lots of variations on this: arch/mips/pci/pci.c:330: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL' scattered throughout the build. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* mips: convert to clocksource_register_hz/khzJohn Stultz2011-02-211-2/+1
| | | | | | | | This converts the mips clocksources to use clocksource_register_hz/khz CC: Ralf Baechle <ralf@linux-mips.org> CC: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <johnstul@us.ibm.com>
* MIPS: Octeon: Scale Octeon2 clocks in octeon_init_cvmcount()David Daney2010-10-291-3/+31
| | | | | | | | | The per-CPU clocks are synchronized from IPD_CLK_COUNT, on cn63XX it must be scaled by the clock frequency ratio. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Patchwork: http://patchwork.linux-mips.org/patch/1667/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Octeon: Implement delays with cycle counter.David Daney2010-08-051-0/+55
| | | | | | | | | | | Power throttling make deterministic delay loops impossible. Re-implement delays using the cycle counter. This also allows us to get rid of the code that calculates loops per jiffy. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1317/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Octeon: Workaround link failures with gcc-4.4.x 32-bits toolchainsFlorian Fainelli2010-08-051-8/+0
| | | | | | | | | | | | | | When building with a gcc-4.4.x toolchain that is configured to produce 32-bits executables by default, we will produce __lshrti3 in sched_clock() which is never resolved so the kernel fails to link. Unconditionally use the inline assembly version as suggested by David Daney, which works around the issue. Signed-off-by: Florian Fainelli <florian@openwrt.org> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/1514/ Acked-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Octeon: Use non-overflowing arithmetic in sched_clockDavid Daney2010-01-121-3/+28
| | | | | | | | | | With typical mult and shift values, the calculation for Octeon's sched_clock overflows when using 64-bit arithmetic. Use 128-bit calculations instead. Signed-off-by: David Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/849/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Octeon: Add sched_clock() to csrc-octeon.cDavid Daney2010-01-121-0/+7
| | | | | | | | | | | | | With the advent of function graph tracing on MIPS, Octeon needs a high precision sched_clock() implementation. Without it, most timing numbers are reported as 0.000. This new sched_clock just uses the 64-bit cycle counter appropriately scaled. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Patchwork: http://patchwork.linux-mips.org/patch/805/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Cavium: Add struct clocksource * argument to octeon_cvmcount_read()Coly Li2009-05-141-1/+1
| | | | | | | | | | | | This patch modifies parameter of octeon_cvmcount_read() from 'void' to 'struct clocksource *cs', which fixes compile warning for incompatible parameter type. Signed-off-by: Coly Li <coly.li@suse.de> Cc: David Daney <ddaney@caviumnetworks.com> Cc: Ingo Molnar <mingo@elte.hu> Reviewed-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: Add Cavium OCTEON processor support files to arch/mips/cavium-octeon.David Daney2009-01-111-0/+58
These are the rest of the new files needed to add OCTEON processor support to the Linux kernel. Other than Makefile and Kconfig which should be obvious, we have: csrc-octeon.c -- Clock source driver for OCTEON. dma-octeon.c -- Helper functions for mapping DMA memory. flash_setup.c -- Register on-board flash with the MTD subsystem. octeon-irq.c -- OCTEON interrupt controller managment. octeon-memcpy.S -- Optimized memcpy() implementation. serial.c -- Register 8250 platform driver and early console. setup.c -- Early architecture initialization. smp.c -- OCTEON SMP support. octeon_switch.S -- Scheduler context switch for OCTEON. c-octeon.c -- OCTEON cache controller support. cex-oct.S -- OCTEON cache exception handler. asm/mach-cavium-octeon/*.h -- Architecture include files. Signed-off-by: Tomaso Paoletti <tpaoletti@caviumnetworks.com> Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> create mode 100644 arch/mips/cavium-octeon/Kconfig create mode 100644 arch/mips/cavium-octeon/Makefile create mode 100644 arch/mips/cavium-octeon/csrc-octeon.c create mode 100644 arch/mips/cavium-octeon/dma-octeon.c create mode 100644 arch/mips/cavium-octeon/flash_setup.c create mode 100644 arch/mips/cavium-octeon/octeon-irq.c create mode 100644 arch/mips/cavium-octeon/octeon-memcpy.S create mode 100644 arch/mips/cavium-octeon/serial.c create mode 100644 arch/mips/cavium-octeon/setup.c create mode 100644 arch/mips/cavium-octeon/smp.c create mode 100644 arch/mips/include/asm/mach-cavium-octeon/cpu-feature-overrides.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/irq.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/kernel-entry-init.h create mode 100644 arch/mips/include/asm/mach-cavium-octeon/war.h create mode 100644 arch/mips/include/asm/octeon/octeon.h create mode 100644 arch/mips/kernel/octeon_switch.S create mode 100644 arch/mips/mm/c-octeon.c create mode 100644 arch/mips/mm/cex-oct.S
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