From 679b2ec8e060ca7a90441aff5e7d384720a41b76 Mon Sep 17 00:00:00 2001 From: Diego Elio Pettenò Date: Sun, 23 Feb 2020 19:11:44 +0000 Subject: scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This kernel configuration is basically enabling/disabling sr driver quirks detection. While these quirks are for fairly rare devices (very old CD burners, and a glucometer), the additional detection of these models is a very minimal amount of code. The logic behind the quirks is always built into the sr driver. This also removes the config from all the defconfig files that are enabling this already. Link: https://lore.kernel.org/r/20200223191144.726-1-flameeyes@flameeyes.com Reviewed-by: Jens Axboe Signed-off-by: Diego Elio Pettenò Signed-off-by: Martin K. Petersen --- arch/mips/configs/bigsur_defconfig | 1 - arch/mips/configs/fuloong2e_defconfig | 1 - arch/mips/configs/ip27_defconfig | 1 - arch/mips/configs/ip32_defconfig | 1 - arch/mips/configs/jazz_defconfig | 1 - arch/mips/configs/malta_defconfig | 1 - arch/mips/configs/malta_kvm_defconfig | 1 - arch/mips/configs/malta_kvm_guest_defconfig | 1 - arch/mips/configs/maltaup_xpa_defconfig | 1 - arch/mips/configs/rm200_defconfig | 1 - 10 files changed, 10 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/configs/bigsur_defconfig b/arch/mips/configs/bigsur_defconfig index f14ad0538f4e..eea9b613bb74 100644 --- a/arch/mips/configs/bigsur_defconfig +++ b/arch/mips/configs/bigsur_defconfig @@ -112,7 +112,6 @@ CONFIG_BLK_DEV_TC86C001=m CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=y CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_CHR_DEV_SCH=m CONFIG_ATA=y diff --git a/arch/mips/configs/fuloong2e_defconfig b/arch/mips/configs/fuloong2e_defconfig index 1788ae23bff9..6466e83067b4 100644 --- a/arch/mips/configs/fuloong2e_defconfig +++ b/arch/mips/configs/fuloong2e_defconfig @@ -99,7 +99,6 @@ CONFIG_CDROM_PKTCDVD=m CONFIG_ATA_OVER_ETH=m CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=y CONFIG_SCSI_CONSTANTS=y # CONFIG_SCSI_LOWLEVEL is not set diff --git a/arch/mips/configs/ip27_defconfig b/arch/mips/configs/ip27_defconfig index 82d942a6026e..638d7cf5ef01 100644 --- a/arch/mips/configs/ip27_defconfig +++ b/arch/mips/configs/ip27_defconfig @@ -99,7 +99,6 @@ CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=y CONFIG_BLK_DEV_SR=m -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_CHR_DEV_SCH=m CONFIG_SCSI_CONSTANTS=y diff --git a/arch/mips/configs/ip32_defconfig b/arch/mips/configs/ip32_defconfig index 370884018aad..7b1fab518317 100644 --- a/arch/mips/configs/ip32_defconfig +++ b/arch/mips/configs/ip32_defconfig @@ -50,7 +50,6 @@ CONFIG_RAID_ATTRS=y CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig index 328d4dfeb4cb..982b990469af 100644 --- a/arch/mips/configs/jazz_defconfig +++ b/arch/mips/configs/jazz_defconfig @@ -191,7 +191,6 @@ CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_BLK_DEV_SR=m -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_SCAN_ASYNC=y CONFIG_SCSI_FC_ATTRS=y diff --git a/arch/mips/configs/malta_defconfig b/arch/mips/configs/malta_defconfig index 59eedf55419d..211bd3d6e6cb 100644 --- a/arch/mips/configs/malta_defconfig +++ b/arch/mips/configs/malta_defconfig @@ -239,7 +239,6 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_CHR_DEV_OSST=m CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y diff --git a/arch/mips/configs/malta_kvm_defconfig b/arch/mips/configs/malta_kvm_defconfig index 8ef612552a19..62b1969b4f55 100644 --- a/arch/mips/configs/malta_kvm_defconfig +++ b/arch/mips/configs/malta_kvm_defconfig @@ -247,7 +247,6 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_CHR_DEV_OSST=m CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y diff --git a/arch/mips/configs/malta_kvm_guest_defconfig b/arch/mips/configs/malta_kvm_guest_defconfig index d2a008c9907c..9185e0a0aa45 100644 --- a/arch/mips/configs/malta_kvm_guest_defconfig +++ b/arch/mips/configs/malta_kvm_guest_defconfig @@ -245,7 +245,6 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_CHR_DEV_OSST=m CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y diff --git a/arch/mips/configs/maltaup_xpa_defconfig b/arch/mips/configs/maltaup_xpa_defconfig index 970df6d42728..636311d67a53 100644 --- a/arch/mips/configs/maltaup_xpa_defconfig +++ b/arch/mips/configs/maltaup_xpa_defconfig @@ -245,7 +245,6 @@ CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_CHR_DEV_OSST=m CONFIG_BLK_DEV_SR=y -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_CHR_DEV_SG=m CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_LOGGING=y diff --git a/arch/mips/configs/rm200_defconfig b/arch/mips/configs/rm200_defconfig index 2c7adea7638f..30d7c3db884e 100644 --- a/arch/mips/configs/rm200_defconfig +++ b/arch/mips/configs/rm200_defconfig @@ -203,7 +203,6 @@ CONFIG_SCSI=y CONFIG_BLK_DEV_SD=y CONFIG_CHR_DEV_ST=m CONFIG_BLK_DEV_SR=m -CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_SCAN_ASYNC=y CONFIG_SCSI_FC_ATTRS=y -- cgit From 634088e2621310d2473e4ec3b69843e32d5cee20 Mon Sep 17 00:00:00 2001 From: Kamal Dasu Date: Wed, 22 Jan 2020 16:33:12 -0500 Subject: arch: mips: brcm: Add 7425 flash-edu support Nand controller v5.0 and v6.0 have nand edu blocks that enable dma nand flash transfers. This allows for faster read and write access. Signed-off-by: Kamal Dasu Acked-by: Paul Burton Reviewed-by: Florian Fainelli Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20200122213313.35820-3-kdasu.kdev@gmail.com --- arch/mips/boot/dts/brcm/bcm7425.dtsi | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/boot/dts/brcm/bcm7425.dtsi b/arch/mips/boot/dts/brcm/bcm7425.dtsi index 410e61ebaf9e..aa0b2d39c902 100644 --- a/arch/mips/boot/dts/brcm/bcm7425.dtsi +++ b/arch/mips/boot/dts/brcm/bcm7425.dtsi @@ -403,8 +403,8 @@ compatible = "brcm,brcmnand-v5.0", "brcm,brcmnand"; #address-cells = <1>; #size-cells = <0>; - reg-names = "nand"; - reg = <0x41b800 0x400>; + reg-names = "nand", "flash-edu"; + reg = <0x41b800 0x400>, <0x41bc00 0x24>; interrupt-parent = <&hif_l2_intc>; interrupts = <24>; status = "disabled"; -- cgit From 4f8232bbf887123f78bcdca3dfd2b3dfa52a0112 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 21 Feb 2020 12:24:02 -0800 Subject: dma-direct: remove the cached_kernel_address hook dma-direct now finds the kernel address for coherent allocations based on the dma address, so the cached_kernel_address hooks is unused and can be removed entirely. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy --- arch/mips/mm/dma-noncoherent.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index dc42ffc83825..77dce28ad0a0 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -54,11 +54,6 @@ void *uncached_kernel_address(void *addr) return (void *)(__pa(addr) + UNCAC_BASE); } -void *cached_kernel_address(void *addr) -{ - return __va(addr) - UNCAC_BASE; -} - static inline void dma_sync_virt(void *addr, size_t size, enum dma_data_direction dir) { -- cgit From fa7e2247c5729f990c7456fe09f3af99c8f2571b Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 21 Feb 2020 15:55:43 -0800 Subject: dma-direct: make uncached_kernel_address more general Rename the symbol to arch_dma_set_uncached, and pass a size to it as well as allow an error return. That will allow reusing this hook for in-place pagetable remapping. As the in-place remap doesn't always require an explicit cache flush, also detangle ARCH_HAS_DMA_PREP_COHERENT from ARCH_HAS_DMA_SET_UNCACHED. Signed-off-by: Christoph Hellwig Reviewed-by: Robin Murphy --- arch/mips/Kconfig | 3 ++- arch/mips/mm/dma-noncoherent.c | 2 +- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 797d7f1ad5fe..489185db501e 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1187,8 +1187,9 @@ config DMA_NONCOHERENT # significant advantages. # select ARCH_HAS_DMA_WRITE_COMBINE + select ARCH_HAS_DMA_PREP_COHERENT select ARCH_HAS_SYNC_DMA_FOR_DEVICE - select ARCH_HAS_UNCACHED_SEGMENT + select ARCH_HAS_DMA_SET_UNCACHED select DMA_NONCOHERENT_MMAP select DMA_NONCOHERENT_CACHE_SYNC select NEED_DMA_MAP_STATE diff --git a/arch/mips/mm/dma-noncoherent.c b/arch/mips/mm/dma-noncoherent.c index 77dce28ad0a0..fcea92d95d86 100644 --- a/arch/mips/mm/dma-noncoherent.c +++ b/arch/mips/mm/dma-noncoherent.c @@ -49,7 +49,7 @@ void arch_dma_prep_coherent(struct page *page, size_t size) dma_cache_wback_inv((unsigned long)page_address(page), size); } -void *uncached_kernel_address(void *addr) +void *arch_dma_set_uncached(void *addr, size_t size) { return (void *)(__pa(addr) + UNCAC_BASE); } -- cgit From d198b34f3855eee2571dda03eea75a09c7c31480 Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Tue, 3 Mar 2020 22:35:59 +0900 Subject: .gitignore: add SPDX License Identifier Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman --- arch/mips/boot/.gitignore | 1 + arch/mips/boot/compressed/.gitignore | 1 + arch/mips/boot/tools/.gitignore | 1 + arch/mips/kernel/.gitignore | 1 + arch/mips/tools/.gitignore | 1 + arch/mips/vdso/.gitignore | 1 + 6 files changed, 6 insertions(+) (limited to 'arch/mips') diff --git a/arch/mips/boot/.gitignore b/arch/mips/boot/.gitignore index a73d6e2c4f64..2adc8581a175 100644 --- a/arch/mips/boot/.gitignore +++ b/arch/mips/boot/.gitignore @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only mkboot elf2ecoff vmlinux.* diff --git a/arch/mips/boot/compressed/.gitignore b/arch/mips/boot/compressed/.gitignore index ebae133f1d00..d358395614c9 100644 --- a/arch/mips/boot/compressed/.gitignore +++ b/arch/mips/boot/compressed/.gitignore @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only ashldi3.c bswapsi.c diff --git a/arch/mips/boot/tools/.gitignore b/arch/mips/boot/tools/.gitignore index be0ed065249b..d36dc7cf9115 100644 --- a/arch/mips/boot/tools/.gitignore +++ b/arch/mips/boot/tools/.gitignore @@ -1 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only relocs diff --git a/arch/mips/kernel/.gitignore b/arch/mips/kernel/.gitignore index c5f676c3c224..bbb90f92d051 100644 --- a/arch/mips/kernel/.gitignore +++ b/arch/mips/kernel/.gitignore @@ -1 +1,2 @@ +# SPDX-License-Identifier: GPL-2.0-only vmlinux.lds diff --git a/arch/mips/tools/.gitignore b/arch/mips/tools/.gitignore index b0209450d9ff..794817dfb389 100644 --- a/arch/mips/tools/.gitignore +++ b/arch/mips/tools/.gitignore @@ -1,2 +1,3 @@ +# SPDX-License-Identifier: GPL-2.0-only elf-entry loongson3-llsc-check diff --git a/arch/mips/vdso/.gitignore b/arch/mips/vdso/.gitignore index 5286a7d73d79..1f43f6dd8142 100644 --- a/arch/mips/vdso/.gitignore +++ b/arch/mips/vdso/.gitignore @@ -1,3 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0-only *.so* vdso-*image.c genvdso -- cgit From 20c384f1ea1a0bc7320bc445c72dd02d2970d594 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Thu, 26 Mar 2020 22:01:17 +0800 Subject: vhost: refine vhost and vringh kconfig Currently, CONFIG_VHOST depends on CONFIG_VIRTUALIZATION. But vhost is not necessarily for VM since it's a generic userspace and kernel communication protocol. Such dependency may prevent archs without virtualization support from using vhost. To solve this, a dedicated vhost menu is created under drivers so CONIFG_VHOST can be decoupled out of CONFIG_VIRTUALIZATION. While at it, also squash Kconfig.vringh into vhost Kconfig file. This avoids the trick of conditional inclusion from VOP or CAIF. Then it will be easier to introduce new vringh users and common dependency for both vringh and vhost. Signed-off-by: Jason Wang Link: https://lore.kernel.org/r/20200326140125.19794-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin --- arch/mips/kvm/Kconfig | 2 -- 1 file changed, 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/kvm/Kconfig b/arch/mips/kvm/Kconfig index eac25aef21e0..b91d145aa2d5 100644 --- a/arch/mips/kvm/Kconfig +++ b/arch/mips/kvm/Kconfig @@ -72,6 +72,4 @@ config KVM_MIPS_DEBUG_COP0_COUNTERS If unsure, say N. -source "drivers/vhost/Kconfig" - endif # VIRTUALIZATION -- cgit From 3122e80efc0faf4a2accba7a46c7ed795edbfded Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Mon, 6 Apr 2020 20:03:47 -0700 Subject: mm/vma: make vma_is_accessible() available for general use Lets move vma_is_accessible() helper to include/linux/mm.h which makes it available for general use. While here, this replaces all remaining open encodings for VMA access check with vma_is_accessible(). Signed-off-by: Anshuman Khandual Signed-off-by: Andrew Morton Acked-by: Geert Uytterhoeven Acked-by: Guo Ren Acked-by: Vlastimil Babka Cc: Guo Ren Cc: Geert Uytterhoeven Cc: Ralf Baechle Cc: Paul Burton Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: Yoshinori Sato Cc: Rich Felker Cc: Dave Hansen Cc: Andy Lutomirski Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: Ingo Molnar Cc: Steven Rostedt Cc: Mel Gorman Cc: Alexander Viro Cc: "Aneesh Kumar K.V" Cc: Arnaldo Carvalho de Melo Cc: Arnd Bergmann Cc: Nick Piggin Cc: Paul Mackerras Cc: Will Deacon Link: http://lkml.kernel.org/r/1582520593-30704-3-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds --- arch/mips/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/mips') diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index 4a0eafe3d932..fb048ba2b91d 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -142,7 +142,7 @@ good_area: goto bad_area; } } else { - if (!(vma->vm_flags & (VM_READ | VM_WRITE | VM_EXEC))) + if (!vma_is_accessible(vma)) goto bad_area; } } -- cgit From 5093c5872be3a041917828b2b53e9f981d754768 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Mon, 6 Apr 2020 20:03:59 -0700 Subject: mm/vma: append unlikely() while testing VMA access permissions It is unlikely that an inaccessible VMA without required permission flags will get a page fault. Hence lets just append unlikely() directive to such checks in order to improve performance while also standardizing it across various platforms. Signed-off-by: Anshuman Khandual Signed-off-by: Andrew Morton Reviewed-by: Andrew Morton Cc: Guo Ren Cc: Geert Uytterhoeven Cc: Ralf Baechle Cc: Paul Burton Cc: Mike Rapoport Link: http://lkml.kernel.org/r/1582525304-32113-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds --- arch/mips/mm/fault.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/mips') diff --git a/arch/mips/mm/fault.c b/arch/mips/mm/fault.c index fb048ba2b91d..f8d62cd83b36 100644 --- a/arch/mips/mm/fault.c +++ b/arch/mips/mm/fault.c @@ -142,7 +142,7 @@ good_area: goto bad_area; } } else { - if (!vma_is_accessible(vma)) + if (unlikely(!vma_is_accessible(vma))) goto bad_area; } } -- cgit From 06e85c7e9a1c1356038936566fc23f7c0d363b96 Mon Sep 17 00:00:00 2001 From: Michal Simek Date: Mon, 6 Apr 2020 20:09:23 -0700 Subject: asm-generic: fix unistd_32.h generation format Generated files are also checked by sparse that's why add newline to remove sparse (C=1) warning. The issue was found on Microblaze and reported like this: ./arch/microblaze/include/generated/uapi/asm/unistd_32.h:438:45: warning: no newline at end of file Mips and PowerPC have it already but let's align with style used by m68k. Signed-off-by: Michal Simek Signed-off-by: Andrew Morton Reviewed-by: Stefan Asserhall Acked-by: Max Filippov (xtensa) Cc: Arnd Bergmann Cc: Max Filippov Cc: Benjamin Herrenschmidt Cc: Chris Zankel Cc: David S. Miller Cc: Fenghua Yu Cc: Helge Deller Cc: Ivan Kokshaysky Cc: James Bottomley Cc: Matt Turner Cc: Michael Ellerman Cc: Paul Burton Cc: Paul Mackerras Cc: Ralf Baechle Cc: Rich Felker Cc: Richard Henderson Cc: Tony Luck Cc: Yoshinori Sato Link: http://lkml.kernel.org/r/4d32ab4e1fb2edb691d2e1687e8fb303c09fd023.1581504803.git.michal.simek@xilinx.com Signed-off-by: Linus Torvalds --- arch/mips/kernel/syscalls/syscallhdr.sh | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/kernel/syscalls/syscallhdr.sh b/arch/mips/kernel/syscalls/syscallhdr.sh index d2bcfa8f4d1a..2e241e713a7d 100644 --- a/arch/mips/kernel/syscalls/syscallhdr.sh +++ b/arch/mips/kernel/syscalls/syscallhdr.sh @@ -32,6 +32,5 @@ grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | ( printf "#define __NR_syscalls\t%s\n" "${nxt}" printf "#endif\n" printf "\n" - printf "#endif /* %s */" "${fileguard}" - printf "\n" + printf "#endif /* %s */\n" "${fileguard}" ) > "$out" -- cgit From 2a5e5d0c966945f53e50f671babb50a4c201eabd Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Mon, 6 Apr 2020 01:30:52 +0900 Subject: MIPS: fw: arc: add __weak to prom_meminit and prom_free_prom_memory As far as I understood, prom_meminit() in arch/mips/fw/arc/memory.c is overridden by the one in arch/mips/sgi-ip32/ip32-memory.c if CONFIG_SGI_IP32 is enabled. The use of EXPORT_SYMBOL in static libraries potentially causes a problem for the llvm linker [1]. So, I want to forcibly link lib-y objects to vmlinux when CONFIG_MODULES=y. As a groundwork, we must fix multiple definitions that have previously been hidden by lib-y. The prom_cleanup() in this file is already marked as __weak (because it is overridden by the one in arch/mips/sgi-ip22/ip22-mc.c). I think it should be OK to do the same for these two. [1]: https://github.com/ClangBuiltLinux/linux/issues/515 Reported-by: kbuild test robot Signed-off-by: Masahiro Yamada Acked-By: Thomas Bogendoerfer --- arch/mips/fw/arc/memory.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/fw/arc/memory.c b/arch/mips/fw/arc/memory.c index dbbcddc82823..89fa6e62a3b3 100644 --- a/arch/mips/fw/arc/memory.c +++ b/arch/mips/fw/arc/memory.c @@ -117,7 +117,7 @@ static int __init prom_memtype_classify(union linux_memtypes type) return memtype_classify_arc(type); } -void __init prom_meminit(void) +void __weak __init prom_meminit(void) { struct linux_mdesc *p; @@ -162,7 +162,7 @@ void __weak __init prom_cleanup(void) { } -void __init prom_free_prom_memory(void) +void __weak __init prom_free_prom_memory(void) { int i; -- cgit From c62da0c35d58518ddb26ff641d2485596567fd96 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 10 Apr 2020 14:33:05 -0700 Subject: mm/vma: define a default value for VM_DATA_DEFAULT_FLAGS There are many platforms with exact same value for VM_DATA_DEFAULT_FLAGS This creates a default value for VM_DATA_DEFAULT_FLAGS in line with the existing VM_STACK_DEFAULT_FLAGS. While here, also define some more macros with standard VMA access flag combinations that are used frequently across many platforms. Apart from simplification, this reduces code duplication as well. Signed-off-by: Anshuman Khandual Signed-off-by: Andrew Morton Reviewed-by: Vlastimil Babka Acked-by: Geert Uytterhoeven Cc: Richard Henderson Cc: Vineet Gupta Cc: Russell King Cc: Catalin Marinas Cc: Mark Salter Cc: Guo Ren Cc: Yoshinori Sato Cc: Brian Cain Cc: Tony Luck Cc: Michal Simek Cc: Ralf Baechle Cc: Paul Burton Cc: Nick Hu Cc: Ley Foon Tan Cc: Jonas Bonn Cc: "James E.J. Bottomley" Cc: Michael Ellerman Cc: Paul Walmsley Cc: Heiko Carstens Cc: Rich Felker Cc: "David S. Miller" Cc: Guan Xuetao Cc: Thomas Gleixner Cc: Jeff Dike Cc: Chris Zankel Link: http://lkml.kernel.org/r/1583391014-8170-2-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds --- arch/mips/include/asm/page.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index 0ba4ce6e2bf3..e2f503fc7a84 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -253,10 +253,7 @@ extern bool __virt_addr_valid(const volatile void *kaddr); #define virt_addr_valid(kaddr) \ __virt_addr_valid((const volatile void *) (kaddr)) -#define VM_DATA_DEFAULT_FLAGS \ - (VM_READ | VM_WRITE | \ - ((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) +#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_TSK_EXEC #include #include -- cgit From 78e7c5af080b86e9f28afac5a8307ddab1d2c1a3 Mon Sep 17 00:00:00 2001 From: Anshuman Khandual Date: Fri, 10 Apr 2020 14:33:13 -0700 Subject: mm/special: create generic fallbacks for pte_special() and pte_mkspecial() Currently there are many platforms that dont enable ARCH_HAS_PTE_SPECIAL but required to define quite similar fallback stubs for special page table entry helpers such as pte_special() and pte_mkspecial(), as they get build in generic MM without a config check. This creates two generic fallback stub definitions for these helpers, eliminating much code duplication. mips platform has a special case where pte_special() and pte_mkspecial() visibility is wider than what ARCH_HAS_PTE_SPECIAL enablement requires. This restricts those symbol visibility in order to avoid redefinitions which is now exposed through this new generic stubs and subsequent build failure. arm platform set_pte_at() definition needs to be moved into a C file just to prevent a build failure. [anshuman.khandual@arm.com: use defined(CONFIG_ARCH_HAS_PTE_SPECIAL) in mips per Thomas] Link: http://lkml.kernel.org/r/1583851924-21603-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Signed-off-by: Andrew Morton Acked-by: Guo Ren [csky] Acked-by: Geert Uytterhoeven [m68k] Acked-by: Stafford Horne [openrisc] Acked-by: Helge Deller [parisc] Cc: Richard Henderson Cc: Ivan Kokshaysky Cc: Matt Turner Cc: Russell King Cc: Brian Cain Cc: Tony Luck Cc: Fenghua Yu Cc: Sam Creasey Cc: Michal Simek Cc: Ralf Baechle Cc: Paul Burton Cc: Nick Hu Cc: Greentime Hu Cc: Vincent Chen Cc: Ley Foon Tan Cc: Jonas Bonn Cc: Stefan Kristiansson Cc: "James E.J. Bottomley" Cc: "David S. Miller" Cc: Jeff Dike Cc: Richard Weinberger Cc: Anton Ivanov Cc: Guan Xuetao Cc: Chris Zankel Cc: Max Filippov Cc: Thomas Bogendoerfer Link: http://lkml.kernel.org/r/1583802551-15406-1-git-send-email-anshuman.khandual@arm.com Signed-off-by: Linus Torvalds --- arch/mips/include/asm/pgtable.h | 44 ++++++++++++++++++++++++++++------------- 1 file changed, 30 insertions(+), 14 deletions(-) (limited to 'arch/mips') diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h index aef5378f909c..f1801e7a4b15 100644 --- a/arch/mips/include/asm/pgtable.h +++ b/arch/mips/include/asm/pgtable.h @@ -269,6 +269,36 @@ cache_sync_done: */ extern pgd_t swapper_pg_dir[]; +/* + * Platform specific pte_special() and pte_mkspecial() definitions + * are required only when ARCH_HAS_PTE_SPECIAL is enabled. + */ +#if defined(CONFIG_ARCH_HAS_PTE_SPECIAL) +#if defined(CONFIG_PHYS_ADDR_T_64BIT) && defined(CONFIG_CPU_MIPS32) +static inline int pte_special(pte_t pte) +{ + return pte.pte_low & _PAGE_SPECIAL; +} + +static inline pte_t pte_mkspecial(pte_t pte) +{ + pte.pte_low |= _PAGE_SPECIAL; + return pte; +} +#else +static inline int pte_special(pte_t pte) +{ + return pte_val(pte) & _PAGE_SPECIAL; +} + +static inline pte_t pte_mkspecial(pte_t pte) +{ + pte_val(pte) |= _PAGE_SPECIAL; + return pte; +} +#endif +#endif /* CONFIG_ARCH_HAS_PTE_SPECIAL */ + /* * The following only work if pte_present() is true. * Undefined behaviour if not.. @@ -277,7 +307,6 @@ extern pgd_t swapper_pg_dir[]; static inline int pte_write(pte_t pte) { return pte.pte_low & _PAGE_WRITE; } static inline int pte_dirty(pte_t pte) { return pte.pte_low & _PAGE_MODIFIED; } static inline int pte_young(pte_t pte) { return pte.pte_low & _PAGE_ACCESSED; } -static inline int pte_special(pte_t pte) { return pte.pte_low & _PAGE_SPECIAL; } static inline pte_t pte_wrprotect(pte_t pte) { @@ -338,17 +367,10 @@ static inline pte_t pte_mkyoung(pte_t pte) } return pte; } - -static inline pte_t pte_mkspecial(pte_t pte) -{ - pte.pte_low |= _PAGE_SPECIAL; - return pte; -} #else static inline int pte_write(pte_t pte) { return pte_val(pte) & _PAGE_WRITE; } static inline int pte_dirty(pte_t pte) { return pte_val(pte) & _PAGE_MODIFIED; } static inline int pte_young(pte_t pte) { return pte_val(pte) & _PAGE_ACCESSED; } -static inline int pte_special(pte_t pte) { return pte_val(pte) & _PAGE_SPECIAL; } static inline pte_t pte_wrprotect(pte_t pte) { @@ -392,12 +414,6 @@ static inline pte_t pte_mkyoung(pte_t pte) return pte; } -static inline pte_t pte_mkspecial(pte_t pte) -{ - pte_val(pte) |= _PAGE_SPECIAL; - return pte; -} - #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT static inline int pte_huge(pte_t pte) { return pte_val(pte) & _PAGE_HUGE; } -- cgit