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2020-11-19MIPS: Loongson64: Fix wrong scache size when execute lscpuTiezhu Yang1-6/+4
As the user manual and code comment said, Loongson-3 has 4-scache banks, while Loongson-2K has only 2 banks, so we should multiply the number of scache banks, this multiply operation should be done by c->scache.sets instead of scache_size, otherwise we will get the wrong scache size when execute lscpu. For example, the scache size should be 8192K instead of 2048K on the Loongson 3A3000 and 3A4000 platform, we can see the related info in the following boot message: [loongson@linux ~]$ dmesg | grep "Unified secondary cache" [ 0.000000] Unified secondary cache 8192kB 16-way, linesize 64 bytes. [ 4.061909] Unified secondary cache 8192kB 16-way, linesize 64 bytes. [ 4.125629] Unified secondary cache 8192kB 16-way, linesize 64 bytes. [ 4.188379] Unified secondary cache 8192kB 16-way, linesize 64 bytes. E.g. without this patch: [loongson@linux ~]$ cat /sys/devices/system/cpu/cpu*/cache/index2/size 2048K 2048K 2048K 2048K [loongson@linux ~]$ lscpu | grep "L2 cache" L2 cache: 2048K With this patch: [loongson@linux ~]$ cat /sys/devices/system/cpu/cpu*/cache/index2/size 8192K 8192K 8192K 8192K [loongson@linux ~]$ lscpu | grep "L2 cache" L2 cache: 8192K Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-19MIPS: Remove cpu_has_6k_cache and cpu_has_8k_cache in cpu_cache_init()Tiezhu Yang2-12/+0
Since commit 02cf2119684e ("Cleanup the mess in cpu_cache_init."), cpu_has_6k_cache and cpu_has_8k_cache have no user, r6k_cache_init() and r8k_cache_init() are not defined for over 15 years, just remove them. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-19MIPS: mm: Clean up setup of protection mapThomas Bogendoerfer2-45/+18
Protection map difference between RIXI and non RIXI cpus is _PAGE_NO_EXEC and _PAGE_NO_READ usage. Both already take care of cpu_has_rixi while setting up the page bits. So we just need one setup of protection map and can drop the now unused (and broken for RIXI) PAGE_* defines. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-19MIPS: mm: shorten lines by using macroThomas Bogendoerfer1-17/+21
Introduce helper macro to make lines shorter. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-19MIPS: kvm: Use vm_get_page_prot to get protection bitsThomas Bogendoerfer1-1/+3
MIPS protection bits are setup during runtime so using defines like PAGE_SHARED ignores this runtime changes. Using vm_get_page_prot to get correct page protection fixes this. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-19MIPS: vdso: Use vma page protection for remappingThomas Bogendoerfer1-2/+2
MIPS protection bits are setup during runtime so using defines like PAGE_READONLY ignores these runtime changes. To fix this we simply use the page protection of the setup vma. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17net: wan: Delete the DLCI / SDLA driversXie He2-2/+0
The DLCI driver (dlci.c) implements the Frame Relay protocol. However, we already have another newer and better implementation of Frame Relay provided by the HDLC_FR driver (hdlc_fr.c). The DLCI driver's implementation of Frame Relay is used by only one hardware driver in the kernel - the SDLA driver (sdla.c). The SDLA driver provides Frame Relay support for the Sangoma S50x devices. However, the vendor provides their own driver (along with their own multi-WAN-protocol implementations including Frame Relay), called WANPIPE. I believe most users of the hardware would use the vendor-provided WANPIPE driver instead. (The WANPIPE driver was even once in the kernel, but was deleted in commit 8db60bcf3021 ("[WAN]: Remove broken and unmaintained Sangoma drivers.") because the vendor no longer updated the in-kernel WANPIPE driver.) Cc: Mike McLagan <mike.mclagan@linux.org> Signed-off-by: Xie He <xie.he.0141@gmail.com> Link: https://lore.kernel.org/r/20201114150921.685594-1-xie.he.0141@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-17mips: bmips: dts: add BCM63268 reset controller supportÁlvaro Fernández Rojas1-0/+6
BCM63268 SoCs have a reset controller for certain components. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17mips: bmips: dts: add BCM6368 reset controller supportÁlvaro Fernández Rojas1-0/+6
BCM6368 SoCs have a reset controller for certain components. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17mips: bmips: dts: add BCM6362 reset controller supportÁlvaro Fernández Rojas1-0/+6
BCM6362 SoCs have a reset controller for certain components. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17mips: bmips: dts: add BCM6358 reset controller supportÁlvaro Fernández Rojas1-0/+6
BCM6358 SoCs have a reset controller for certain components. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17mips: bmips: dts: add BCM6328 reset controller supportÁlvaro Fernández Rojas1-0/+6
BCM6328 SoCs have a reset controller for certain components. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17mips: bmips: select ARCH_HAS_RESET_CONTROLLERÁlvaro Fernández Rojas1-0/+1
This allows to add reset controllers support. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17MIPS: Ingenic: Refresh defconfig for Ingenic SoCs based boards.周琰杰 (Zhou Yanjie)3-14/+61
1.Refresh defconfig of CI20 to support OTG and RNG. 2.Refresh defconfig of CU1000-Neo to support OTG/RNG/OST/SC16IS752. 3.Refresh defconfig of CU1830-Neo to support OTG/DTRNG/OST/SC16IS752. Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com> Tested by: H. Nikolaus Schaller <hns@goldelico.com> # CI20/jz4780 Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17MIPS: Ingenic: Add missing nodes for Ingenic SoCs and boards.周琰杰 (Zhou Yanjie)6-19/+313
1.Add OTG/OTG PHY/RNG nodes for JZ4780, CGU/OTG nodes for CI20. 2.Add OTG/OTG PHY/RNG/OST nodes for X1000, SSI/CGU/OST/OTG/SC16IS752 nodes for CU1000-Neo. 3.Add OTG/OTG PHY/DTRNG/OST nodes for X1830, SSI/CGU/OST/OTG/SC16IS752 nodes for CU1830-Neo. Tested-by: 周正 (Zhou Zheng) <sernia.zhou@foxmail.com> Tested by: H. Nikolaus Schaller <hns@goldelico.com> # CI20/jz4780 Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17Merge tag 'mips_fixes_5.10_1' into mips-nextThomas Bogendoerfer3-4/+12
Pull in mips-fixes to get memblock fix. - fix bug preventing booting on several platforms - fix for build error, when modules need has_transparent_hugepage - fix for memleak in alchemy clk setup Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17MIPS: Alchemy: Fix memleak in alchemy_clk_setup_cpuZhang Qilong1-1/+8
If the clk_register fails, we should free h before function returns to prevent memleak. Fixes: 474402291a0ad ("MIPS: Alchemy: clock framework integration of onchip clocks") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-17MIPS: kernel: Fix for_each_memblock conversionThomas Bogendoerfer1-3/+3
The loop over all memblocks works with PFNs and not physical addresses, so we need for_each_mem_pfn_range(). Fixes: b10d6bca8720 ("arch, drivers: replace for_each_membock() with for_each_mem_range()") Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
2020-11-16arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where neededArnd Bergmann1-0/+3
Stefan Agner reported a bug when using zsram on 32-bit Arm machines with RAM above the 4GB address boundary: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = a27bd01c [00000000] *pgd=236a0003, *pmd=1ffa64003 Internal error: Oops: 207 [#1] SMP ARM Modules linked in: mdio_bcm_unimac(+) brcmfmac cfg80211 brcmutil raspberrypi_hwmon hci_uart crc32_arm_ce bcm2711_thermal phy_generic genet CPU: 0 PID: 123 Comm: mkfs.ext4 Not tainted 5.9.6 #1 Hardware name: BCM2711 PC is at zs_map_object+0x94/0x338 LR is at zram_bvec_rw.constprop.0+0x330/0xa64 pc : [<c0602b38>] lr : [<c0bda6a0>] psr: 60000013 sp : e376bbe0 ip : 00000000 fp : c1e2921c r10: 00000002 r9 : c1dda730 r8 : 00000000 r7 : e8ff7a00 r6 : 00000000 r5 : 02f9ffa0 r4 : e3710000 r3 : 000fdffe r2 : c1e0ce80 r1 : ebf979a0 r0 : 00000000 Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 30c5383d Table: 235c2a80 DAC: fffffffd Process mkfs.ext4 (pid: 123, stack limit = 0x495a22e6) Stack: (0xe376bbe0 to 0xe376c000) As it turns out, zsram needs to know the maximum memory size, which is defined in MAX_PHYSMEM_BITS when CONFIG_SPARSEMEM is set, or in MAX_POSSIBLE_PHYSMEM_BITS on the x86 architecture. The same problem will be hit on all 32-bit architectures that have a physical address space larger than 4GB and happen to not enable sparsemem and include asm/sparsemem.h from asm/pgtable.h. After the initial discussion, I suggested just always defining MAX_POSSIBLE_PHYSMEM_BITS whenever CONFIG_PHYS_ADDR_T_64BIT is set, or provoking a build error otherwise. This addresses all configurations that can currently have this runtime bug, but leaves all other configurations unchanged. I looked up the possible number of bits in source code and datasheets, here is what I found: - on ARC, CONFIG_ARC_HAS_PAE40 controls whether 32 or 40 bits are used - on ARM, CONFIG_LPAE enables 40 bit addressing, without it we never support more than 32 bits, even though supersections in theory allow up to 40 bits as well. - on MIPS, some MIPS32r1 or later chips support 36 bits, and MIPS32r5 XPA supports up to 60 bits in theory, but 40 bits are more than anyone will ever ship - On PowerPC, there are three different implementations of 36 bit addressing, but 32-bit is used without CONFIG_PTE_64BIT - On RISC-V, the normal page table format can support 34 bit addressing. There is no highmem support on RISC-V, so anything above 2GB is unused, but it might be useful to eventually support CONFIG_ZRAM for high pages. Fixes: 61989a80fb3a ("staging: zsmalloc: zsmalloc memory allocation library") Fixes: 02390b87a945 ("mm/zsmalloc: Prepare to variable MAX_PHYSMEM_BITS") Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Reviewed-by: Stefan Agner <stefan@agner.ch> Tested-by: Stefan Agner <stefan@agner.ch> Acked-by: Mike Rapoport <rppt@linux.ibm.com> Link: https://lore.kernel.org/linux-mm/bdfa44bf1c570b05d6c70898e2bbb0acf234ecdf.1604762181.git.stefan@agner.ch/ Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-11-13drivers: staging: retire drivers/staging/goldfishRoman Kiryanov1-1/+0
Android Studio Emulator (goldfish) migrated to Intel HDA. Signed-off-by: Roman Kiryanov <rkir@google.com> Link: https://lore.kernel.org/r/20201112234907.3761694-1-rkir@google.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-11-12mips: boot: add support for self-extracting FIT images (vmlinuz.itb)Alexander Lobakin2-0/+49
Commit c3e2ee657418 ("MIPS: generic: Add support for zboot") added support for self-extracting images to Generic MIPS. However, the intended way to boot Generic MIPS kernels is using FIT Images and UHI boot protocol, but currently there's no way to make self-extracting FIT Image (only legacy uzImages). Add a target for this named "vmlinuz.itb", which will consist of vmlinuz.bin and selected DT blobs. It will allow to have the advantages of both UHI and self-extracting images. Signed-off-by: Alexander Lobakin <alobakin@pm.me> Acked-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12mips: boot: clean up self-extracting targets scenariosAlexander Lobakin3-16/+37
1. All final targets like vmlinuz.{bin,ecoff,srec} etc. should reside in $(objtree)/arch/mips/boot, not in the root $(objtree) directory. The only file that should be left there is vmlinuz, similar to other architectures. 2. Add all the targets to $(targets) variable, so they'll be properly accounted by Kbuild. This also allows to remove redundant $(clean-files) (which were missing uzImage BTW). 3. Prefix all targets with $(obj)/$(objtree), depending on their locations. Misc: fix the identation of the 'STRIP' quiet message. Signed-off-by: Alexander Lobakin <alobakin@pm.me> Acked-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: Add serval supportGregory CLEMENT8-1/+351
Add a device trees and FIT image support for the Microsemi Serval SoC which belongs to same family of the Ocelot SoC. It is based on the work of Lars Povlsen <lars.povlsen@microchip.com>. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: Add jaguar2 supportGregory CLEMENT9-0/+675
Add a device trees and FIT image support for the Microsemi Jaguar2 SoC which belongs to same family of the Ocelot SoC. It is based on the work of Lars Povlsen <lars.povlsen@microchip.com>. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: build FIT image for LutonGregory CLEMENT3-0/+32
Luton now has already an u-boot port so let's build FIT images. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: Add luton PC0B91 device treeGregory CLEMENT2-1/+34
Add a device tree for the Microsemi Luton PCB091 evaluation board. It is based on the work of Lars Povlsen <lars.povlsen@microchip.com>. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: Add luton dtsiGregory CLEMENT1-0/+116
Add a device tree include file for the Microsemi Luton SoC which belongs to same family of the Ocelot SoC. It is based on the work of Lars Povlsen <lars.povlsen@microchip.com>. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: Fix configuration name for ocelot legacy boardsGregory CLEMENT1-1/+1
Ocelots is supported by the generic MIPS build so make it clears that LEGACY_BOARD_OCELOT is only needed for legacy boards which didn't have bootloader supporting device tree. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: mscc: Prepare configuration to handle more SoCsGregory CLEMENT3-5/+10
Ocelot belongs to a family of SoC named the VCore III. In order to add these new Soc, use the new symbol SOC_VCOREIII instead of a one dedicated to Ocelot. In order to avoid regression on driver building, the MSCC_OCELOT configuration symbol is kept until the driver will be converted. Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: BCM47XX: fix kconfig dependency bug for BCM47XX_BCMANecip Fazil Yildiran1-0/+1
When BCM47XX_BCMA is enabled and BCMA_DRIVER_PCI is disabled, it results in the following Kbuild warning: WARNING: unmet direct dependencies detected for BCMA_DRIVER_PCI_HOSTMODE Depends on [n]: MIPS [=y] && BCMA_DRIVER_PCI [=n] && PCI_DRIVERS_LEGACY [=y] && BCMA [=y]=y Selected by [y]: - BCM47XX_BCMA [=y] && BCM47XX [=y] && PCI [=y] The reason is that BCM47XX_BCMA selects BCMA_DRIVER_PCI_HOSTMODE without depending on or selecting BCMA_DRIVER_PCI while BCMA_DRIVER_PCI_HOSTMODE depends on BCMA_DRIVER_PCI. This can also fail building the kernel. Honor the kconfig dependency to remove unmet direct dependency warnings and avoid any potential build failures. Fixes: c1d1c5d4213e ("bcm47xx: add support for bcma bus") Link: https://bugzilla.kernel.org/show_bug.cgi?id=209879 Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12MIPS: BMC47xx: fix kconfig dependency bug for BCM47XX_SSBNecip Fazil Yildiran1-0/+1
When BCM47XX_SSB is enabled and SSB_PCIHOST is disabled, it results in the following Kbuild warning: WARNING: unmet direct dependencies detected for SSB_B43_PCI_BRIDGE Depends on [n]: SSB [=y] && SSB_PCIHOST [=n] Selected by [y]: - BCM47XX_SSB [=y] && BCM47XX [=y] && PCI [=y] The reason is that BCM47XX_SSB selects SSB_B43_PCI_BRIDGE without depending on or selecting SSB_PCIHOST while SSB_B43_PCI_BRIDGE depends on SSB_PCIHOST. This can also fail building the kernel as demonstrated in a bug report. Honor the kconfig dependency to remove unmet direct dependency warnings and avoid any potential build failures. Link: https://bugzilla.kernel.org/show_bug.cgi?id=210051 Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12mips: dts: ralink: mt7628a: Harmonize EHCI/OHCI DT nodes nameSerge Semin1-1/+1
In accordance with the Generic EHCI/OHCI bindings the corresponding node name is suppose to comply with the Generic USB HCD DT schema, which requires the USB nodes to have the name acceptable by the regexp: "^usb(@.*)?" . Make sure the "generic-ehci" and "generic-ohci"-compatible nodes are correctly named. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12mips: dts: sead3: Harmonize EHCI/OHCI DT nodes nameSerge Semin1-1/+1
In accordance with the Generic EHCI/OHCI bindings the corresponding node name is suppose to comply with the Generic USB HCD DT schema, which requires the USB nodes to have the name acceptable by the regexp: "^usb(@.*)?" . Make sure the "generic-ehci" and "generic-ohci"-compatible nodes are correctly named. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-12mips: dts: jz47x: Harmonize EHCI/OHCI DT nodes nameSerge Semin2-2/+2
In accordance with the Generic EHCI/OHCI bindings the corresponding node name is suppose to comply with the Generic USB HCD DT schema, which requires the USB nodes to have the name acceptable by the regexp: "^usb(@.*)?" . Make sure the "generic-ehci" and "generic-ohci"-compatible nodes are correctly named. Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru> Acked-by: Paul Cercueil <paul@crapouillou.net> Acked-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11MIPS: Loongson64: SMP: Fix up play_dead jump indicatorTiezhu Yang1-1/+2
In play_dead function, the whole 64-bit PC mailbox was used as a indicator to determine if the master core had written boot jump information. However, after we introduced CSR mailsend, the hardware will not guarante an atomic write for the 64-bit PC mailbox. Thus we have to use the lower 32-bit which is written at the last as the jump indicator instead. Signed-off-by: Lu Zeng <zenglu@loongson.cn> Signed-off-by: Jun Yi <yijun@loongson.cn> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11MIPS: Loongson64: Add Mail_Send support for 3A4000+ CPUTiezhu Yang2-23/+107
Loongson 3A4000+ CPU has per-core Mail_Send register to send mail, there is no need to maintain register address of each core and node, just simply specify cpu number. Signed-off-by: Lu Zeng <zenglu@loongson.cn> Signed-off-by: Jianmin Lv <lvjianmin@loongson.cn> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11MIPS: Loongson64: Set IPI_Enable register per core by itselfTiezhu Yang1-2/+2
In the current code, for example, core 1 sets Core[0, 1, 2, 3]_IPI_Enalbe register and core 2, 3 do the same thing on the 1-way Loongson64 platform, this is not necessary. Set IPI_Enable register per core by itself to avoid duplicate operations and make the logic more clear. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11MIPS: Loongson64: Set the field ELPA of CP0_PAGEGRAIN only onceTiezhu Yang1-15/+2
The field ELPA of CP0_PAGEGRAIN register is set at the beginning of the kernel entry point in kernel-entry-init.h, no need to set it again in numa.c, we can remove enable_lpa() and only print the related information. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11MIPS: Loongson64: Do not write the read only field LPA of CP0_CONFIG3Tiezhu Yang2-11/+0
The field LPA of CP0_CONFIG3 register is read only for Loongson64, so the write operations are meaningless, remove them. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11MIPS: remove GCC < 4.9 supportNick Desaulniers1-8/+1
Remove a tautology; since commit 0bddd227f3dc ("Documentation: update for gcc 4.9 requirement") which raised the minimally supported version of GCC to 4.9, this case is always true. Link: https://github.com/ClangBuiltLinux/linux/issues/427 Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-11mips: Remove #include <uapi/asm/types.h> from <asm/types.h>Geert Uytterhoeven1-1/+0
Everything in arch/mips/include/uapi/asm/types.h is protected by "#ifndef __KERNEL__", so it's unused for kernelspace. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-09mips: add support for TIF_NOTIFY_SIGNALJens Axboe2-2/+4
Wire up TIF_NOTIFY_SIGNAL handling for mips. Cc: linux-mips@vger.kernel.org Acked-By: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-07net: x25_asy: Delete the x25_asy driverXie He2-2/+0
This driver transports LAPB (X.25 link layer) frames over TTY links. I can safely say that this driver has no actual user because it was not working at all until: commit 8fdcabeac398 ("drivers/net/wan/x25_asy: Fix to make it work") The code in its current state still has problems: 1. The uses of "struct x25_asy" in x25_asy_unesc (when receiving) and in x25_asy_write_wakeup (when sending) are not protected by locks against x25_asy_change_mtu's changing of the transmitting/receiving buffers. Also, all "netif_running" checks in this driver are not protected by locks against the ndo_stop function. 2. The driver stops all TTY read/write when the netif is down. I think this is not right because this may cause the last outgoing frame before the netif goes down to be incompletely transmitted, and the first incoming frame after the netif goes up to be incompletely received. And there may also be other problems. I was planning to fix these problems but after recent discussions about deleting other old networking code, I think we may just delete this driver, too. Signed-off-by: Xie He <xie.he.0141@gmail.com> Acked-by: Martin Schiller <ms@dev.tdt.de> Link: https://lore.kernel.org/r/20201105073434.429307-1-xie.he.0141@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-06mips/mm/highmem: Switch to generic kmap atomicThomas Gleixner6-99/+6
No reason having the same code in every architecture Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20201103095857.885321106@linutronix.de
2020-11-06mips: Vr41xx: add missing iounmap() on error in vr41xx_pciu_init()Qinglang Miao1-1/+3
add missing iounmap() of pciu_base on error when failed to init io_map_base. Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-06mips: cm: add missing iounmap() on error in mips_cm_probe()Qinglang Miao1-0/+1
Add the missing iounmap() of iounmap(mips_gcr_base) before return from mips_cm_probe() in the error handling case. Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-06mips: ar7: add missing iounmap() on error in ar7_gpio_initQinglang Miao1-0/+1
Add the missing iounmap() of gpch->regs before return from ar7_gpio_init() in the error handling case. Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-06MIPS: Kconfig: fix a few trivial spelling mistakesColin Ian King1-3/+3
There are a few spelling mistakes in the Kconfig, fix these. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-06MIPS: zboot: put appended dtb into a sectionChuanhong Guo1-3/+6
This will make a separated section for dtb appear in ELF, and we can then use objcopy to patch a dtb into vmlinuz when RAW_APPENDED_DTB is set in kernel config. command to patch a dtb: objcopy --set-section-flags=.appended_dtb=alloc,contents \ --update-section=.appended_dtb=<target>.dtb vmlinuz Signed-off-by: Chuanhong Guo <gch981213@gmail.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-11-04USB: serial: keyspan_pda: clean up xircom/entrega supportJohan Hovold2-2/+0
Drop the separate Kconfig symbol for Xircom / Entrega and always include support in the keyspan_pda driver. Note that all configs that enabled CONFIG_USB_SERIAL_XIRCOM also enable CONFIG_USB_SERIAL_KEYSPAN_PDA. Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Johan Hovold <johan@kernel.org>
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