Alexandre Ghiti 01261e24cf riscv: Only flush the mm icache when setting an exec pte ... We used to emit a flush_icache_all() whenever a dirty executable mapping is set in the page table but we can instead call flush_icache_mm() which will only send IPIs to cores that currently run this mm and add a deferred icache flush to the others. The number of calls to sbi_remote_fence_i() (tested without IPI support): With a simple buildroot rootfs: * Before: ~5k * After : 4 (!) Tested on HW, the boot to login is ~4.5% faster. With an ubuntu rootfs: * Before: ~24k * After : ~13k Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> Reviewed-by: Charlie Jenkins <charlie@rivosinc.com> Link: https://lore.kernel.org/r/20240202124711.256146-1-alexghiti@rivosinc.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>		2024-03-20 08:56:08 -07:00
..
cache-ops.c	riscv: split cache ops out of dma-noncoherent.c	2023-11-07 09:37:42 -08:00
cacheflush.c	riscv: Only flush the mm icache when setting an exec pte	2024-03-20 08:56:08 -07:00
context.c	membarrier: riscv: Add full memory barrier in switch_mm()	2024-02-15 08:04:11 -08:00
dma-noncoherent.c	iommu: Remove struct iommu_ops *iommu from arch_setup_dma_ops()	2023-12-12 10:18:45 +01:00
extable.c	riscv: select DCACHE_WORD_ACCESS for efficient unaligned access HW	2024-01-09 20:18:20 -08:00
fault.c	RISC-V Patches for the 6.8 Merge Window, Part 1	2024-01-17 10:50:46 -08:00
hugetlbpage.c	riscv: Use accessors to page table entries instead of direct dereference	2023-12-20 10:48:15 -08:00
init.c	riscv: mm: Update mmap_rnd_bits_max	2024-01-24 07:07:43 -08:00
kasan_init.c	percpu:	2024-01-18 15:01:28 -08:00
Makefile	riscv: mm: Only compile pgtable.c if MMU	2023-12-20 10:48:14 -08:00
pageattr.c	Merge remote-tracking branch 'palmer/fixes' into for-next	2024-01-09 20:10:32 -08:00
pgtable.c	riscv: Only flush the mm icache when setting an exec pte	2024-03-20 08:56:08 -07:00
physaddr.c	riscv: Use PUD/P4D/PGD pages for the linear mapping	2023-04-18 20:43:04 -07:00
pmem.c	RISC-V: capitalise CMO op macros	2023-11-05 09:11:23 -08:00
ptdump.c	Merge patch series "Improve PTDUMP and introduce new fields"	2023-11-05 09:41:57 -08:00
tlbflush.c	RISC-V Patches for the 6.8 Merge Window, Part 4	2024-01-20 11:06:04 -08:00