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    SubjectRe: [PATCH v6 0/2] riscv: Use PUD/P4D/PGD pages for the linear mapping
    Hi Alex,

    On Tue, Mar 7, 2023 at 12:22 AM Alexandre Ghiti <alexghiti@rivosinc.com> wrote:
    >
    > Hi Anup,
    >
    > On Mon, Mar 6, 2023 at 5:33 PM Anup Patel <apatel@ventanamicro.com> wrote:
    > >
    > > On Wed, Mar 1, 2023 at 1:56 PM Alexandre Ghiti <alexghiti@rivosinc.com> wrote:
    > > >
    > > > This patchset intends to improve tlb utilization by using hugepages for
    > > > the linear mapping.
    > > >
    > > > base-commit-tag: v6.2-rc7
    > > >
    > > > v6:
    > > > - quiet LLVM warning by casting phys_ram_base into an unsigned long
    > > >
    > > > v5:
    > > > - Fix nommu builds by getting rid of riscv_pfn_base in patch 1, thanks
    > > > Conor
    > > > - Add RB from Andrew
    > > >
    > > > v4:
    > > > - Rebase on top of v6.2-rc3, as noted by Conor
    > > > - Add Acked-by Rob
    > > >
    > > > v3:
    > > > - Change the comment about initrd_start VA conversion so that it fits
    > > > ARM64 and RISCV64 (and others in the future if needed), as suggested
    > > > by Rob
    > > >
    > > > v2:
    > > > - Add a comment on why RISCV64 does not need to set initrd_start/end that
    > > > early in the boot process, as asked by Rob
    > > >
    > > > Alexandre Ghiti (2):
    > > > riscv: Get rid of riscv_pfn_base variable
    > > > riscv: Use PUD/P4D/PGD pages for the linear mapping
    > >
    > > I tried this series but it is getting stuck after reaching user space.
    > >
    > > Does this series require some other dependent patches ?
    >
    > No it should not. Let me take a look: what's your config and the base commit?

    Please try the alexghiti_test branch at:
    https://github.com/avpatel/linux.git

    Compile the kernel with defconfig and launch QEMU as follows:
    qemu-system-riscv64 -M virt -m 1G -nographic -bios
    opensbi/build/platform/generic/firmware/fw_jump.bin -kernel
    ./build-riscv64/arch/riscv/boot/Image -append "root=/dev/ram rw
    console=ttyS0 earlycon" -initrd ./rootfs_riscv64.img

    In the above command, rootfs_riscv64.img is a busybox based rootfs.

    Regards,
    Anup

    >
    > >
    > > Regards,
    > > Anup
    > >
    > > >
    > > > arch/riscv/include/asm/page.h | 19 +++++++++++++++++--
    > > > arch/riscv/mm/init.c | 28 ++++++++++++++++++----------
    > > > arch/riscv/mm/physaddr.c | 16 ++++++++++++++++
    > > > drivers/of/fdt.c | 11 ++++++-----
    > > > 4 files changed, 57 insertions(+), 17 deletions(-)
    > > >
    > > > --
    > > > 2.37.2
    > > >

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