CONFIG_DEBUG_VM_PGTABLE runs a boot-time self test over the page table helpers: the protection bit accessors, pte_modify(), the swap entry encoding including the exclusive marker, and, where the architecture supports them, the huge page helpers. Alpha implements everything the test needs for a three-level page table without huge page support.
Assisted-by: Claude:claude-opus-5 Signed-off-by: Matt Turner <[email protected]> Also mark Alpha as "ok" in the debug-vm-pgtable feature matrix. Tested-by: Magnus Lindholm <[email protected]> Reviewed-by: Magnus Lindholm <[email protected]> --- Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +- arch/alpha/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt index 156687a7436d..b4e2374fe201 100644 --- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt +++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt @@ -6,7 +6,7 @@ ----------------------- | arch |status| ----------------------- - | alpha: | TODO | + | alpha: | ok | | arc: | ok | | arm: | TODO | | arm64: | ok | diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig index da4ec8399517..4bd5e913baaf 100644 --- a/arch/alpha/Kconfig +++ b/arch/alpha/Kconfig @@ -6,6 +6,7 @@ config ALPHA select HAVE_SYSCALL_TRACEPOINTS select ARCH_32BIT_USTAT_F_TINODE select ARCH_HAS_CURRENT_STACK_POINTER + select ARCH_HAS_DEBUG_VM_PGTABLE select ARCH_HAS_DMA_OPS if PCI select ARCH_HAS_FAST_MULTIPLIER select ARCH_HAS_GCOV_PROFILE_ALL -- 2.54.0
