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2017-07-11MIPS16e2: Provide feature overrides for non-MIPS16 systemsMaciej W. Rozycki1-0/+1
Hardcode the absence of the MIPS16e2 ASE for all the systems that do so for the MIPS16 ASE already, providing for code to be optimized away. Signed-off-by: Maciej W. Rozycki <macro@imgtec.com> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/16097/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Netlogic: Move cores per node out of multi-node.hJayachandran C1-9/+0
Use the current_cpu_data package field to get the node of the current CPU. This allows us to remove xlp_cores_per_node and move nlm_threads_per_node() and nlm_cores_per_node() to netlogic/common.h, which simplifies code. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8889/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-04-01MIPS: Netlogic: Use MIPS topology.hJayachandran C1-15/+0
commit bda4584cd943 ("MIPS: Support CPU topology files in sysfs") added topology related macros for all MIPS platforms and commit bbbf6d8768f5 ("MIPS: NL: Fix nlm_xlp_defconfig build error") removed most of the contents from mach-netlogic/topology.h. The netlogic specific topology is not needed anymore, we just need to setup the package field in current_cpu_data. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8888/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-03-31MIPS: Create a common <asm/mach-generic/war.h>Kevin Cernekee1-25/+0
11 platforms require at least one of these workarounds to be enabled; 22 platforms do not. In the latter case we can fall back to a generic version. Note that this also deletes an orphaned reference to RM9000_CDEX_SMP_WAR. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Andrew Bresticker <abrestic@chromium.org> Reviewed-by: James Hogan <james.hogan@imgtec.com> Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: Ezequiel Garcia <ezequiel.garcia@imgtec.com> Cc: James Hartley <james.hartley@imgtec.com> Cc: James Hogan <james.hogan@imgtec.com> Patchwork: https://patchwork.linux-mips.org/patch/9567/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-19MIPS: NL: Fix nlm_xlp_defconfig build errorGuenter Roeck1-7/+0
The nlm_xlp_defconfig build fails with ./arch/mips/include/asm/mach-netlogic/topology.h:15:0: error: "topology_core_id" redefined [-Werror] In file included from include/linux/smp.h:59:0, [ ...] from arch/mips/mm/dma-default.c:12: ./arch/mips/include/asm/smp.h:41:0: note: this is the location of the previous definition and similar errors. This is caused by commit bda4584cd943d7 ("MIPS: Support CPU topology files in sysfs") which adds the defines to arch/mips/include/asm/smp.h. Remove the defines from arch/mips/include/asm/mach-netlogic/topology.h as no longer necessary. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: Huacai Chen <chenhc@lemote.com> Cc: Andreas Herrmann <andreas.herrmann@caviumnetworks.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/7513/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-05-30MIPS: Netlogic: Fix uniprocessor compilationJayachandran C1-0/+2
The macros in topology.h need CONFIG_SMP, and the uniprocessor compilation fails due to this. Wrap the macros in an ifdef so that uniprocessor works. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/6863/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-01-24MIPS: Netlogic: Add cpu to node mapping for XLP9XXJayachandran C1-2/+9
XLP9XX has 20 cores per node, opposed to 8 on earlier XLP8XX. Update code that calculates node id from cpu id to handle this. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6283/
2014-01-24MIPS: Netlogic: update iomap.h for XLP9XXJayachandran C1-0/+1
Most IO block offsets have changed in XLP9XX. Update iomap.h to add the new addresses of different SoC blocks like PIC, SYS, UART etc. that are needed by the base code. On XLP9xx, the SoC blocks of other nodes are seen on a PCI bus corresponding to the node. Update iomap code to reflect this. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6277/
2014-01-24MIPS: Netlogic: Add macro for node presentJayachandran C1-0/+2
Add macro nlm_node_present() that can be used to check if a node is present in a multi-chip configuration. This can be used even when NUMA is not enabled. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6272/
2014-01-24MIPS: Netlogic: Add topology.h for XLP familyJayachandran C2-0/+39
Add mach-netlogic/topology.h which contains XLP cpu number to core and node mapping. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6271/
2014-01-24MIPS: Netlogic: Add MSI support for XLPJayachandran C1-1/+2
Add MSI chip and MSIX chip definitions. For MSI, we map the link interrupt to a MSI link IRQ which will do a second level of dispatch based on the MSI status register. The MSI chip definitions use the MSI enable register to enable and disable the MSI irqs. For MSI-X, we split the 32 available MSI-X vectors across the four PCIe links (8 each). These PIC interrupts generate an IRQ per link which uses a second level dispatch as well. The MSI-X chip definition uses the standard functions to enable and disable interrupts. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Signed-off-by: John Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6270/
2012-12-13Merge branch 'mips-next' of http://dev.phrozen.org/githttp/mips-next into mips-for-linux-nextRalf Baechle2-1/+57
2012-12-13MIPS: PMC-Sierra Yosemite: Remove support.Ralf Baechle1-1/+0
Nobody seems to be interested anymore and upstream also never had an ethernet driver. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-11-09MIPS: Netlogic: Make number of nodes configurableJayachandran C2-1/+57
There can be 1, 2 or 4 SoCs(nodes) in a multi-chip XLP board. Add an option for multi-chip boards in case of XLP, and make the number of nodes configurable. Signed-off-by: Jayachandran C <jchandra@broadcom.com> Patchwork: http://patchwork.linux-mips.org/patch/4470 Signed-off-by: John Crispin <blogic@openwrt.org>
2012-10-11MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.Ralf Baechle1-0/+1
Most supported systems currently hardwire cpu_has_dsp to 0, so we also can disable support for cpu_has_dsp2 resulting in a slightly smaller kernel. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2012-07-24MIPS: Netlogic: remove cpu_has_dc_aliases define for XLPJayachandran C1-1/+0
On XLP, the dcache size depends on the number of enabled threads in core. There are no dcache aliases if the pagesize is large enough or if enough threads are enabled in the core. Remove the #define for cpu_has_dc_aliases and leave it to be computed at runtime. Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/4099/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-12-07MIPS: Netlogic: XLP CPU support.Jayachandran C1-4/+14
Add support for Netlogic's XLP MIPS SoC. This patch adds: * XLP processor ID in cpu_probe.c and asm/cpu.h * XLP case to asm/module.h * CPU_XLP case to mm/tlbex.c * minor change to r4k cache handling to ignore XLP secondary cache * XLP cpu overrides to mach-netlogic/cpu-feature-overrides.h Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2966/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-12-07MIPS: Netlogic: Avoid unnecessary cache flushesJayachandran C1-3/+2
XLR dcache is fully coherent across CPUs, so avoid unnecessary dcache flushes. Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2729/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-05-19MIPS: Netlogic: mach-netlogic include filesJayachandran C3-0/+87
Add war.h and irq.h with XLR/XLS definitions. Signed-off-by: Jayachandran C <jayachandranc@netlogicmicro.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2331/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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