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author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-04-11 11:30:42 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-04-11 11:30:42 -0700 |
commit | 5de6b467992286d3bd2a7512036de99b3e483932 (patch) | |
tree | af96c0a6f4d61a025ed4b97603c2f0b53dd0ce7f /arch | |
parent | e1dc191dbf3f35cf07790b52110267bef55515a2 (diff) | |
parent | a07c772fa658645887119184de48b255bf19a46e (diff) | |
download | lwn-5de6b467992286d3bd2a7512036de99b3e483932.tar.gz lwn-5de6b467992286d3bd2a7512036de99b3e483932.zip |
Merge tag 'loongarch-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
- make {virt, phys, page, pfn} translation work with KFENCE for
LoongArch (otherwise NVMe and virtio-blk cannot work with KFENCE
enabled)
- update dts files for Loongson-2K series to make devices work
correctly
- fix a build error
* tag 'loongarch-fixes-6.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: Include linux/sizes.h in addrspace.h to prevent build errors
LoongArch: Update dts for Loongson-2K2000 to support GMAC/GNET
LoongArch: Update dts for Loongson-2K2000 to support PCI-MSI
LoongArch: Update dts for Loongson-2K2000 to support ISA/LPC
LoongArch: Update dts for Loongson-2K1000 to support ISA/LPC
LoongArch: Make virt_addr_valid()/__virt_addr_valid() work with KFENCE
LoongArch: Make {virt, phys, page, pfn} translation work with KFENCE
mm: Move lowmem_page_address() a little later
Diffstat (limited to 'arch')
-rw-r--r-- | arch/loongarch/boot/dts/loongson-2k1000.dtsi | 7 | ||||
-rw-r--r-- | arch/loongarch/boot/dts/loongson-2k2000-ref.dts | 33 | ||||
-rw-r--r-- | arch/loongarch/boot/dts/loongson-2k2000.dtsi | 24 | ||||
-rw-r--r-- | arch/loongarch/include/asm/addrspace.h | 1 | ||||
-rw-r--r-- | arch/loongarch/include/asm/io.h | 20 | ||||
-rw-r--r-- | arch/loongarch/include/asm/kfence.h | 9 | ||||
-rw-r--r-- | arch/loongarch/include/asm/page.h | 26 | ||||
-rw-r--r-- | arch/loongarch/mm/mmap.c | 4 | ||||
-rw-r--r-- | arch/loongarch/mm/pgtable.c | 4 |
9 files changed, 116 insertions, 12 deletions
diff --git a/arch/loongarch/boot/dts/loongson-2k1000.dtsi b/arch/loongarch/boot/dts/loongson-2k1000.dtsi index 49a70f8c3cab..b6aeb1f70e2a 100644 --- a/arch/loongarch/boot/dts/loongson-2k1000.dtsi +++ b/arch/loongarch/boot/dts/loongson-2k1000.dtsi @@ -100,6 +100,13 @@ #size-cells = <2>; dma-coherent; + isa@18000000 { + compatible = "isa"; + #size-cells = <1>; + #address-cells = <2>; + ranges = <1 0x0 0x0 0x18000000 0x4000>; + }; + liointc0: interrupt-controller@1fe01400 { compatible = "loongson,liointc-2.0"; reg = <0x0 0x1fe01400 0x0 0x40>, diff --git a/arch/loongarch/boot/dts/loongson-2k2000-ref.dts b/arch/loongarch/boot/dts/loongson-2k2000-ref.dts index dca91caf895e..74b99bd234cc 100644 --- a/arch/loongarch/boot/dts/loongson-2k2000-ref.dts +++ b/arch/loongarch/boot/dts/loongson-2k2000-ref.dts @@ -61,12 +61,45 @@ &gmac0 { status = "okay"; + + phy-mode = "gmii"; + phy-handle = <&phy0>; + mdio { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + phy0: ethernet-phy@0 { + reg = <2>; + }; + }; }; &gmac1 { status = "okay"; + + phy-mode = "gmii"; + phy-handle = <&phy1>; + mdio { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + phy1: ethernet-phy@1 { + reg = <2>; + }; + }; }; &gmac2 { status = "okay"; + + phy-mode = "rgmii"; + phy-handle = <&phy2>; + mdio { + compatible = "snps,dwmac-mdio"; + #address-cells = <1>; + #size-cells = <0>; + phy2: ethernet-phy@2 { + reg = <0>; + }; + }; }; diff --git a/arch/loongarch/boot/dts/loongson-2k2000.dtsi b/arch/loongarch/boot/dts/loongson-2k2000.dtsi index a231949b5f55..9eab2d02cbe8 100644 --- a/arch/loongarch/boot/dts/loongson-2k2000.dtsi +++ b/arch/loongarch/boot/dts/loongson-2k2000.dtsi @@ -51,6 +51,13 @@ #address-cells = <2>; #size-cells = <2>; + isa@18400000 { + compatible = "isa"; + #size-cells = <1>; + #address-cells = <2>; + ranges = <1 0x0 0x0 0x18400000 0x4000>; + }; + pmc: power-management@100d0000 { compatible = "loongson,ls2k2000-pmc", "loongson,ls2k0500-pmc", "syscon"; reg = <0x0 0x100d0000 0x0 0x58>; @@ -109,6 +116,8 @@ msi: msi-controller@1fe01140 { compatible = "loongson,pch-msi-1.0"; reg = <0x0 0x1fe01140 0x0 0x8>; + interrupt-controller; + #interrupt-cells = <1>; msi-controller; loongson,msi-base-vec = <64>; loongson,msi-num-vecs = <192>; @@ -140,27 +149,34 @@ #address-cells = <3>; #size-cells = <2>; device_type = "pci"; + msi-parent = <&msi>; bus-range = <0x0 0xff>; - ranges = <0x01000000 0x0 0x00008000 0x0 0x18400000 0x0 0x00008000>, + ranges = <0x01000000 0x0 0x00008000 0x0 0x18408000 0x0 0x00008000>, <0x02000000 0x0 0x60000000 0x0 0x60000000 0x0 0x20000000>; gmac0: ethernet@3,0 { reg = <0x1800 0x0 0x0 0x0 0x0>; - interrupts = <12 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <12 IRQ_TYPE_LEVEL_HIGH>, + <13 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "macirq", "eth_lpi"; interrupt-parent = <&pic>; status = "disabled"; }; gmac1: ethernet@3,1 { reg = <0x1900 0x0 0x0 0x0 0x0>; - interrupts = <14 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <14 IRQ_TYPE_LEVEL_HIGH>, + <15 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "macirq", "eth_lpi"; interrupt-parent = <&pic>; status = "disabled"; }; gmac2: ethernet@3,2 { reg = <0x1a00 0x0 0x0 0x0 0x0>; - interrupts = <17 IRQ_TYPE_LEVEL_HIGH>; + interrupts = <17 IRQ_TYPE_LEVEL_HIGH>, + <18 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "macirq", "eth_lpi"; interrupt-parent = <&pic>; status = "disabled"; }; diff --git a/arch/loongarch/include/asm/addrspace.h b/arch/loongarch/include/asm/addrspace.h index b24437e28c6e..7bd47d65bf7a 100644 --- a/arch/loongarch/include/asm/addrspace.h +++ b/arch/loongarch/include/asm/addrspace.h @@ -11,6 +11,7 @@ #define _ASM_ADDRSPACE_H #include <linux/const.h> +#include <linux/sizes.h> #include <asm/loongarch.h> diff --git a/arch/loongarch/include/asm/io.h b/arch/loongarch/include/asm/io.h index 4a8adcca329b..c2f9979b2979 100644 --- a/arch/loongarch/include/asm/io.h +++ b/arch/loongarch/include/asm/io.h @@ -14,11 +14,6 @@ #include <asm/pgtable-bits.h> #include <asm/string.h> -/* - * Change "struct page" to physical address. - */ -#define page_to_phys(page) ((phys_addr_t)page_to_pfn(page) << PAGE_SHIFT) - extern void __init __iomem *early_ioremap(u64 phys_addr, unsigned long size); extern void __init early_iounmap(void __iomem *addr, unsigned long size); @@ -73,6 +68,21 @@ extern void __memcpy_fromio(void *to, const volatile void __iomem *from, size_t #define __io_aw() mmiowb() +#ifdef CONFIG_KFENCE +#define virt_to_phys(kaddr) \ +({ \ + (likely((unsigned long)kaddr < vm_map_base)) ? __pa((unsigned long)kaddr) : \ + page_to_phys(tlb_virt_to_page((unsigned long)kaddr)) + offset_in_page((unsigned long)kaddr);\ +}) + +#define phys_to_virt(paddr) \ +({ \ + extern char *__kfence_pool; \ + (unlikely(__kfence_pool == NULL)) ? __va((unsigned long)paddr) : \ + page_address(phys_to_page((unsigned long)paddr)) + offset_in_page((unsigned long)paddr);\ +}) +#endif + #include <asm-generic/io.h> #define ARCH_HAS_VALID_PHYS_ADDR_RANGE diff --git a/arch/loongarch/include/asm/kfence.h b/arch/loongarch/include/asm/kfence.h index 6c82aea1c993..a6a5760da3a3 100644 --- a/arch/loongarch/include/asm/kfence.h +++ b/arch/loongarch/include/asm/kfence.h @@ -16,6 +16,7 @@ static inline bool arch_kfence_init_pool(void) { int err; + char *kaddr, *vaddr; char *kfence_pool = __kfence_pool; struct vm_struct *area; @@ -35,6 +36,14 @@ static inline bool arch_kfence_init_pool(void) return false; } + kaddr = kfence_pool; + vaddr = __kfence_pool; + while (kaddr < kfence_pool + KFENCE_POOL_SIZE) { + set_page_address(virt_to_page(kaddr), vaddr); + kaddr += PAGE_SIZE; + vaddr += PAGE_SIZE; + } + return true; } diff --git a/arch/loongarch/include/asm/page.h b/arch/loongarch/include/asm/page.h index 44027060c54a..e85df33f11c7 100644 --- a/arch/loongarch/include/asm/page.h +++ b/arch/loongarch/include/asm/page.h @@ -78,7 +78,26 @@ typedef struct { unsigned long pgprot; } pgprot_t; struct page *dmw_virt_to_page(unsigned long kaddr); struct page *tlb_virt_to_page(unsigned long kaddr); -#define virt_to_pfn(kaddr) PFN_DOWN(PHYSADDR(kaddr)) +#define pfn_to_phys(pfn) __pfn_to_phys(pfn) +#define phys_to_pfn(paddr) __phys_to_pfn(paddr) + +#define page_to_phys(page) pfn_to_phys(page_to_pfn(page)) +#define phys_to_page(paddr) pfn_to_page(phys_to_pfn(paddr)) + +#ifndef CONFIG_KFENCE + +#define page_to_virt(page) __va(page_to_phys(page)) +#define virt_to_page(kaddr) phys_to_page(__pa(kaddr)) + +#else + +#define WANT_PAGE_VIRTUAL + +#define page_to_virt(page) \ +({ \ + extern char *__kfence_pool; \ + (__kfence_pool == NULL) ? __va(page_to_phys(page)) : page_address(page); \ +}) #define virt_to_page(kaddr) \ ({ \ @@ -86,6 +105,11 @@ struct page *tlb_virt_to_page(unsigned long kaddr); dmw_virt_to_page((unsigned long)kaddr) : tlb_virt_to_page((unsigned long)kaddr);\ }) +#endif + +#define pfn_to_virt(pfn) page_to_virt(pfn_to_page(pfn)) +#define virt_to_pfn(kaddr) page_to_pfn(virt_to_page(kaddr)) + extern int __virt_addr_valid(volatile void *kaddr); #define virt_addr_valid(kaddr) __virt_addr_valid((volatile void *)(kaddr)) diff --git a/arch/loongarch/mm/mmap.c b/arch/loongarch/mm/mmap.c index a9630a81b38a..89af7c12e8c0 100644 --- a/arch/loongarch/mm/mmap.c +++ b/arch/loongarch/mm/mmap.c @@ -4,6 +4,7 @@ */ #include <linux/export.h> #include <linux/io.h> +#include <linux/kfence.h> #include <linux/memblock.h> #include <linux/mm.h> #include <linux/mman.h> @@ -111,6 +112,9 @@ int __virt_addr_valid(volatile void *kaddr) { unsigned long vaddr = (unsigned long)kaddr; + if (is_kfence_address((void *)kaddr)) + return 1; + if ((vaddr < PAGE_OFFSET) || (vaddr >= vm_map_base)) return 0; diff --git a/arch/loongarch/mm/pgtable.c b/arch/loongarch/mm/pgtable.c index 2aae72e63871..bda018150000 100644 --- a/arch/loongarch/mm/pgtable.c +++ b/arch/loongarch/mm/pgtable.c @@ -11,13 +11,13 @@ struct page *dmw_virt_to_page(unsigned long kaddr) { - return pfn_to_page(virt_to_pfn(kaddr)); + return phys_to_page(__pa(kaddr)); } EXPORT_SYMBOL(dmw_virt_to_page); struct page *tlb_virt_to_page(unsigned long kaddr) { - return pfn_to_page(pte_pfn(*virt_to_kpte(kaddr))); + return phys_to_page(pfn_to_phys(pte_pfn(*virt_to_kpte(kaddr)))); } EXPORT_SYMBOL(tlb_virt_to_page); |