Hi Huacai, On Tue, Oct 08, 2024 at 10:11:25AM +0800, Huacai Chen wrote:
Hi, Mike, On Mon, Oct 7, 2024 at 2:30 PM Mike Rapoport <rppt@xxxxxxxxxx> wrote:From: "Mike Rapoport (Microsoft)" <rppt@xxxxxxxxxx> Add an API that will allow updates of the direct/linear map for a set of physically contiguous pages. It will be used in the following patches. Signed-off-by: Mike Rapoport (Microsoft) <rppt@xxxxxxxxxx> --- arch/arm64/include/asm/set_memory.h | 1 + arch/arm64/mm/pageattr.c | 10 ++++++++++ arch/loongarch/include/asm/set_memory.h | 1 + arch/loongarch/mm/pageattr.c | 21 +++++++++++++++++++++ arch/riscv/include/asm/set_memory.h | 1 + arch/riscv/mm/pageattr.c | 15 +++++++++++++++ arch/s390/include/asm/set_memory.h | 1 + arch/s390/mm/pageattr.c | 11 +++++++++++ arch/x86/include/asm/set_memory.h | 1 + arch/x86/mm/pat/set_memory.c | 8 ++++++++ include/linux/set_memory.h | 6 ++++++ 11 files changed, 76 insertions(+) diff --git a/arch/loongarch/include/asm/set_memory.h b/arch/loongarch/include/asm/set_memory.h index d70505b6676c..55dfaefd02c8 100644 --- a/arch/loongarch/include/asm/set_memory.h +++ b/arch/loongarch/include/asm/set_memory.h @@ -17,5 +17,6 @@ int set_memory_rw(unsigned long addr, int numpages); bool kernel_page_present(struct page *page); int set_direct_map_default_noflush(struct page *page); int set_direct_map_invalid_noflush(struct page *page); +int set_direct_map_valid_noflush(struct page *page, unsigned nr, bool valid); #endif /* _ASM_LOONGARCH_SET_MEMORY_H */ diff --git a/arch/loongarch/mm/pageattr.c b/arch/loongarch/mm/pageattr.c index ffd8d76021d4..f14b40c968b4 100644 --- a/arch/loongarch/mm/pageattr.c +++ b/arch/loongarch/mm/pageattr.c @@ -216,3 +216,24 @@ int set_direct_map_invalid_noflush(struct page *page) return __set_memory(addr, 1, __pgprot(0), __pgprot(_PAGE_PRESENT | _PAGE_VALID)); } + +int set_direct_map_valid_noflush(struct page *page, unsigned nr, bool valid) +{ + unsigned long addr = (unsigned long)page_address(page); + pgprot_t set, clear; + + return __set_memory((unsigned long)page_address(page), nr, set, clear);This line should be removed.
Argh, copy/paste is so hard... Thanks, will do.
Huacai
-- Sincerely yours, Mike.
