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| author | Mike Rapoport (Microsoft) <rppt@kernel.org> | 2024-08-07 08:40:59 +0200 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-09-04 06:15:30 +0200 |
| commit | e52d5873d13aeb54c5baa6e1c388f6cbf69f97f4 (patch) | |
| tree | 967134c0f0eb217dc87cdfbef1918da889bcc309 /arch/x86/mm/numa.c | |
| parent | x86/numa_emu: split __apicid_to_node update to a helper function (diff) | |
| download | linux-e52d5873d13aeb54c5baa6e1c388f6cbf69f97f4.tar.xz linux-e52d5873d13aeb54c5baa6e1c388f6cbf69f97f4.zip | |
x86/numa_emu: use a helper function to get MAX_DMA32_PFN
This is required to make numa emulation code architecture independent so
that it can be moved to generic code in following commits.
Link: https://lkml.kernel.org/r/20240807064110.1003856-16-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Tested-by: Zi Yan <ziy@nvidia.com> # for x86_64 and arm64
Tested-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> [arm64 + CXL via QEMU]
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Andreas Larsson <andreas@gaisler.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Huacai Chen <chenhuacai@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiaxun Yang <jiaxun.yang@flygoat.com>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Rafael J. Wysocki <rafael@kernel.org>
Cc: Rob Herring (Arm) <robh@kernel.org>
Cc: Samuel Holland <samuel.holland@sifive.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/x86/mm/numa.c')
| -rw-r--r-- | arch/x86/mm/numa.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c index ea3fc2d866e2..2acf8d17b9b8 100644 --- a/arch/x86/mm/numa.c +++ b/arch/x86/mm/numa.c @@ -872,6 +872,11 @@ void __init numa_emu_update_cpu_to_node(int *emu_nid_to_phys, __apicid_to_node[i] = j < nr_emu_nids ? j : 0; } } + +u64 __init numa_emu_dma_end(void) +{ + return PFN_PHYS(MAX_DMA32_PFN); +} #endif /* CONFIG_NUMA_EMU */ #ifdef CONFIG_NUMA_KEEP_MEMINFO |