Yong-Xuan Wang 94a7734d09 RISC-V: Add Svade and Svadu Extensions Support ... Svade and Svadu extensions represent two schemes for managing the PTE A/D bits. When the PTE A/D bits need to be set, Svade extension intdicates that a related page fault will be raised. In contrast, the Svadu extension supports hardware updating of PTE A/D bits. Since the Svade extension is mandatory and the Svadu extension is optional in RVA23 profile, by default the M-mode firmware will enable the Svadu extension in the menvcfg CSR when only Svadu is present in DT. This patch detects Svade and Svadu extensions from DT and adds arch_has_hw_pte_young() to enable optimization in MGLRU and __wp_page_copy_user() when we have the PTE A/D bits hardware updating support. Co-developed-by: Jinyu Tang <tjytimi@163.com> Signed-off-by: Jinyu Tang <tjytimi@163.com> Signed-off-by: Yong-Xuan Wang <yongxuan.wang@sifive.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Acked-by: Palmer Dabbelt <palmer@rivosinc.com> Link: https://lore.kernel.org/r/20240726084931.28924-2-yongxuan.wang@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>		2024-11-21 17:40:06 +05:30
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boot	Many singleton patches - please see the various changelogs for details.	2024-09-21 08:20:50 -07:00
configs	RISC-V Patches for the 6.12 Merge Window, Part 1	2024-09-24 10:59:17 -07:00
crypto	crypto: riscv - add vector crypto accelerated AES-CBC-CTS	2024-03-20 08:56:11 -07:00
errata	riscv: errata: sifive: Use SYM_*() assembly macros	2024-09-15 00:03:22 -07:00
include	RISC-V: Add Svade and Svadu Extensions Support	2024-11-21 17:40:06 +05:30
kernel	RISC-V: Add Svade and Svadu Extensions Support	2024-11-21 17:40:06 +05:30
kvm	riscv: kvm: Fix out-of-bounds array access	2024-11-05 13:27:32 +05:30
lib	Merge patch series "riscv: Improve KASAN coverage to fix unit tests"	2024-09-19 01:10:44 -07:00
mm	RISC-V Patches for the 6.12 Merge Window, Part 1	2024-09-24 10:59:17 -07:00
net	riscv, bpf: Make BPF_CMPXCHG fully ordered	2024-10-17 17:14:48 +02:00
purgatory	Merge patch series "riscv: Improve KASAN coverage to fix unit tests"	2024-09-19 01:10:44 -07:00
tools	riscv: Check relocations at compile time	2023-04-19 07:46:32 -07:00
Kbuild	RISC-V: hook new crypto subdir into build-system	2024-01-22 17:55:17 -08:00
Kconfig	RISC-V: Add Svade and Svadu Extensions Support	2024-11-21 17:40:06 +05:30
Kconfig.debug	riscv: Add tests for riscv module loading	2023-11-07 14:59:32 -08:00
Kconfig.errata	riscv: thead: Rename T-Head PBMT to MAE	2024-04-25 10:22:33 -07:00
Kconfig.socs	RISC-V: drop SOC_VIRT for ARCH_VIRT	2024-04-10 11:37:50 +01:00
Kconfig.vendor	riscv: Extend cpufeature.c to detect vendor extensions	2024-07-22 15:36:54 -07:00
Makefile	riscv: boot: add Image.xz support	2024-09-01 20:43:27 -07:00
Makefile.postlink	kbuild: remove ARCH_POSTLINK from module builds	2023-10-28 21:10:08 +09:00