riscv: migrate to the generic rule for built-in DTB

Commit 654102df2ac2 ("kbuild: add generic support for built-in boot
DTBs") introduced generic support for built-in DTBs.

Select GENERIC_BUILTIN_D

riscv: migrate to the generic rule for built-in DTB

Commit 654102df2ac2 ("kbuild: add generic support for built-in boot
DTBs") introduced generic support for built-in DTBs.

Select GENERIC_BUILTIN_DTB when built-in DTB support is enabled.

To keep consistency across architectures, this commit also renames
CONFIG_BUILTIN_DTB_SOURCE to CONFIG_BUILTIN_DTB_NAME.

Signed-off-by: Masahiro Yamada <[email protected]>
Acked-by: Conor Dooley <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Alexandre Ghiti <[email protected]>

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RISC-V: hook new crypto subdir into build-system

Create a crypto subdirectory for added accelerated cryptography routines
and hook it into the riscv Kbuild and the main crypto Kconfig.

Signed-off-b

RISC-V: hook new crypto subdir into build-system

Create a crypto subdirectory for added accelerated cryptography routines
and hook it into the riscv Kbuild and the main crypto Kconfig.

Signed-off-by: Heiko Stuebner <[email protected]>
Reviewed-by: Eric Biggers <[email protected]>
Signed-off-by: Jerry Shih <[email protected]>
Signed-off-by: Eric Biggers <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>

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kexec: rename ARCH_HAS_KEXEC_PURGATORY

The Kconfig refactor to consolidate KEXEC and CRASH options utilized
option names of the form ARCH_SUPPORTS_<option>. Thus rename the
ARCH_HAS_KEXEC_PURGATORY

kexec: rename ARCH_HAS_KEXEC_PURGATORY

The Kconfig refactor to consolidate KEXEC and CRASH options utilized
option names of the form ARCH_SUPPORTS_<option>. Thus rename the
ARCH_HAS_KEXEC_PURGATORY to ARCH_SUPPORTS_KEXEC_PURGATORY to follow
the same.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Eric DeVolder <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild

Commit 909548d6c578 ("riscv: add arch/riscv/Kbuild") intended that
subdirectories in arch/riscv/ would be added in arch/riscv/Kbuild.

Signed

riscv: move errata/ and kvm/ builds to arch/riscv/Kbuild

Commit 909548d6c578 ("riscv: add arch/riscv/Kbuild") intended that
subdirectories in arch/riscv/ would be added in arch/riscv/Kbuild.

Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Signed-off-by: Palmer Dabbelt <[email protected]>

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RISC-V: Add purgatory

This patch adds purgatory, the name and concept have been taken
from kexec-tools. Purgatory runs between two kernels, and do
verify sha256 hash to ensure the kernel to jump to

RISC-V: Add purgatory

This patch adds purgatory, the name and concept have been taken
from kexec-tools. Purgatory runs between two kernels, and do
verify sha256 hash to ensure the kernel to jump to is fine and
has not been corrupted after loading. Makefile is modified based
on x86 platform.

Signed-off-by: Li Zhengyu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>

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kbuild: use more subdir- for visiting subdirectories while cleaning

Documentation/kbuild/makefiles.rst suggests to use "archclean" for
cleaning arch/$(SRCARCH)/boot/, but it is not a hard requiremen

kbuild: use more subdir- for visiting subdirectories while cleaning

Documentation/kbuild/makefiles.rst suggests to use "archclean" for
cleaning arch/$(SRCARCH)/boot/, but it is not a hard requirement.

Since commit d92cc4d51643 ("kbuild: require all architectures to have
arch/$(SRCARCH)/Kbuild"), we can use the "subdir- += boot" trick for
all architectures. This can take advantage of the parallel option (-j)
for "make clean".

I also cleaned up the comments in arch/$(SRCARCH)/Makefile. The "archdep"
target no longer exists.

Signed-off-by: Masahiro Yamada <[email protected]>
Reviewed-by: Kees Cook <[email protected]>
Acked-by: Geert Uytterhoeven <[email protected]>
Acked-by: Michael Ellerman <[email protected]> (powerpc)

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riscv: Allow device trees to be built into the kernel

Some systems don't provide a useful device tree to the kernel on boot.
Chasing around bootloaders for these systems is a headache, so instead
le

riscv: Allow device trees to be built into the kernel

Some systems don't provide a useful device tree to the kernel on boot.
Chasing around bootloaders for these systems is a headache, so instead
le't's just keep a device tree table in the kernel, keyed by the SOC's
unique identifier, that contains the relevant DTB.

This is only implemented for M mode right now. While we could implement
this via the SBI calls that allow access to these identifiers, we don't
have any systems that need this right now.

Signed-off-by: Palmer Dabbelt <[email protected]>

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riscv: add arch/riscv/Kbuild

Use the standard obj-y form to specify the sub-directories under
arch/riscv/. No functional change intended.

Signed-off-by: Masahiro Yamada <[email protected]

riscv: add arch/riscv/Kbuild

Use the standard obj-y form to specify the sub-directories under
arch/riscv/. No functional change intended.

Signed-off-by: Masahiro Yamada <[email protected]>
Signed-off-by: Paul Walmsley <[email protected]>

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