On Mon, Feb 26, 2024 at 08:12:09PM +1000, Nicholas Piggin wrote:
> Add support for radix MMU, 4kB and 64kB pages.
>
> This also adds MMU interrupt test cases, and runs the interrupts
> test entirely with MMU enabled if it is available (aside from
> machine check tests).
>
> Signed-off-by: Nicholas Piggin <npiggin@xxxxxxxxx>
> ---
> configure | 39 +++--
> lib/powerpc/asm/hcall.h | 6 +
> lib/powerpc/asm/processor.h | 1 +
> lib/powerpc/asm/reg.h | 3 +
> lib/powerpc/asm/smp.h | 2 +
> lib/powerpc/processor.c | 9 ++
> lib/powerpc/setup.c | 4 +
> lib/ppc64/asm/mmu.h | 11 ++
> lib/ppc64/asm/page.h | 67 ++++++++-
> lib/ppc64/asm/pgtable-hwdef.h | 67 +++++++++
> lib/ppc64/asm/pgtable.h | 126 ++++++++++++++++
> lib/ppc64/mmu.c | 273 ++++++++++++++++++++++++++++++++++
> lib/ppc64/opal-calls.S | 4 +-
> powerpc/Makefile.common | 2 +
> powerpc/Makefile.ppc64 | 1 +
> powerpc/interrupts.c | 96 ++++++++++--
> 16 files changed, 684 insertions(+), 27 deletions(-)
> create mode 100644 lib/ppc64/asm/mmu.h
> create mode 100644 lib/ppc64/asm/pgtable-hwdef.h
> create mode 100644 lib/ppc64/asm/pgtable.h
> create mode 100644 lib/ppc64/mmu.c
>
> diff --git a/configure b/configure
> index 05e6702ea..6907ccbbb 100755
> --- a/configure
> +++ b/configure
> @@ -222,29 +222,35 @@ fi
> if [ -z "$page_size" ]; then
> if [ "$efi" = 'y' ] && [ "$arch" = "arm64" ]; then
> page_size="4096"
> - elif [ "$arch" = "arm64" ]; then
> + elif [ "$arch" = "arm64" ] || [ "$arch" = "ppc64" ]; then
> page_size="65536"
> elif [ "$arch" = "arm" ]; then
> page_size="4096"
> fi
> else
> - if [ "$arch" != "arm64" ]; then
> - echo "--page-size is not supported for $arch"
> - usage
> - fi
> -
> if [ "${page_size: -1}" = "K" ] || [ "${page_size: -1}" = "k" ]; then
> page_size=$(( ${page_size%?} * 1024 ))
> fi
> - if [ "$page_size" != "4096" ] && [ "$page_size" != "16384" ] &&
> - [ "$page_size" != "65536" ]; then
> - echo "arm64 doesn't support page size of $page_size"
> +
> + if [ "$arch" = "arm64" ]; then
> + if [ "$page_size" != "4096" ] && [ "$page_size" != "16384" ] &&
> + [ "$page_size" != "65536" ]; then
> + echo "arm64 doesn't support page size of $page_size"
> + usage
> + fi
> + if [ "$efi" = 'y' ] && [ "$page_size" != "4096" ]; then
> + echo "efi must use 4K pages"
> + exit 1
> + fi
> + elif [ "$arch" = "ppc64" ]; then
> + if [ "$page_size" != "4096" ] && [ "$page_size" != "65536" ]; then
> + echo "ppc64 doesn't support page size of $page_size"
> + usage
> + fi
> + else
> + echo "--page-size is not supported for $arch"
> usage
> fi
> - if [ "$efi" = 'y' ] && [ "$page_size" != "4096" ]; then
> - echo "efi must use 4K pages"
> - exit 1
> - fi
> fi
>
> [ -z "$processor" ] && processor="$arch"
> @@ -444,6 +450,13 @@ cat <<EOF >> lib/config.h
>
> #define CONFIG_UART_EARLY_BASE ${arm_uart_early_addr}
> #define CONFIG_ERRATA_FORCE ${errata_force}
> +
> +EOF
> +fi
> +
> +if [ "$arch" = "arm" ] || [ "$arch" = "arm64" ] || [ "$arch" = "ppc64" ]; then
> +cat <<EOF >> lib/config.h
> +
> #define CONFIG_PAGE_SIZE _AC(${page_size}, UL)
>
> EOF
Ack for the configure changes.
Thanks,
drew
