| Message ID | 20220429103225.75121-1-wangkefeng.wang@huawei.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | arm64: Cleanup ioremap() and support ioremap_prot() | expand |
Hello maintainers，kindly ping. On 2022/4/29 18:32, Kefeng Wang wrote: > 1. Enhance generic ioremap to make it more useful. > 2. Let's arm64 use GENERIC_IOREMAP to cleanup code. > 3. Support HAVE_IOREMAP_PROT on arm64, which enable generic_access_phys(), > it is useful when debug(eg, gdb) via access_process_vm device memory > infrastructure. > > v2: > - s/addr/phys_addr in ioremap_prot, suggested by Andrew Morton > - rename arch_ioremap/iounmap_check to arch_ioremap/iounmad > and change return value, per Christoph Hellwig and Andrew Morton > - and use 'ifndef arch_ioremap' instead of weak function, per Arnd Bergmann > - collect ack/review > > Kefeng Wang (5): > mm: ioremap: Use more sensibly name in ioremap_prot() > mm: ioremap: Setup phys_addr of struct vm_struct > mm: ioremap: Add arch_ioremap/iounmap() > arm64: mm: Convert to GENERIC_IOREMAP > arm64: Add HAVE_IOREMAP_PROT support > > .../features/vm/ioremap_prot/arch-support.txt | 2 +- > arch/arm64/Kconfig | 2 + > arch/arm64/include/asm/io.h | 20 +++-- > arch/arm64/include/asm/pgtable.h | 10 +++ > arch/arm64/kernel/acpi.c | 2 +- > arch/arm64/mm/hugetlbpage.c | 10 --- > arch/arm64/mm/ioremap.c | 85 +++---------------- > include/asm-generic/io.h | 16 +++- > mm/ioremap.c | 27 ++++-- > 9 files changed, 74 insertions(+), 100 deletions(-) >
On Fri, Apr 29, 2022 at 06:32:20PM +0800, Kefeng Wang wrote: > Kefeng Wang (5): > mm: ioremap: Use more sensibly name in ioremap_prot() > mm: ioremap: Setup phys_addr of struct vm_struct > mm: ioremap: Add arch_ioremap/iounmap() > arm64: mm: Convert to GENERIC_IOREMAP > arm64: Add HAVE_IOREMAP_PROT support > > .../features/vm/ioremap_prot/arch-support.txt | 2 +- > arch/arm64/Kconfig | 2 + > arch/arm64/include/asm/io.h | 20 +++-- > arch/arm64/include/asm/pgtable.h | 10 +++ > arch/arm64/kernel/acpi.c | 2 +- > arch/arm64/mm/hugetlbpage.c | 10 --- > arch/arm64/mm/ioremap.c | 85 +++---------------- > include/asm-generic/io.h | 16 +++- > mm/ioremap.c | 27 ++++-- > 9 files changed, 74 insertions(+), 100 deletions(-) These patches touch the generic mm parts. Andrew, would you like to merge these patches or are happy for them to go via the arm64 tree. Thanks.
On 2022/5/17 6:51, Catalin Marinas wrote: > On Fri, Apr 29, 2022 at 06:32:20PM +0800, Kefeng Wang wrote: >> Kefeng Wang (5): >> mm: ioremap: Use more sensibly name in ioremap_prot() >> mm: ioremap: Setup phys_addr of struct vm_struct >> mm: ioremap: Add arch_ioremap/iounmap() >> arm64: mm: Convert to GENERIC_IOREMAP >> arm64: Add HAVE_IOREMAP_PROT support >> >> .../features/vm/ioremap_prot/arch-support.txt | 2 +- >> arch/arm64/Kconfig | 2 + >> arch/arm64/include/asm/io.h | 20 +++-- >> arch/arm64/include/asm/pgtable.h | 10 +++ >> arch/arm64/kernel/acpi.c | 2 +- >> arch/arm64/mm/hugetlbpage.c | 10 --- >> arch/arm64/mm/ioremap.c | 85 +++---------------- >> include/asm-generic/io.h | 16 +++- >> mm/ioremap.c | 27 ++++-- >> 9 files changed, 74 insertions(+), 100 deletions(-) > These patches touch the generic mm parts. Andrew, would you like to > merge these patches or are happy for them to go via the arm64 tree. Hi Andrew, what's your preference ;) > Thanks. >