mbox series

[-fixes,v2,0/3] Fixes for dtb mapping

Message ID 20230329081932.79831-1-alexghiti@rivosinc.com (mailing list archive)
Headers show
Series Fixes for dtb mapping | expand

Message

Alexandre Ghiti March 29, 2023, 8:19 a.m. UTC 
We used to map the dtb differently between early_pg_dir and
swapper_pg_dir which caused issues when we referenced addresses from
the early mapping with swapper_pg_dir (reserved_mem): move the dtb mapping
to the fixmap region in patch 1, which allows to simplify dtb handling in
patch 2.

base-commit-tag: v6.3-rc3

Changes in v2:
  * No functional changes!
  * Add RB/TB from Conor in patch 1
  * Split patch 2 into 2 separate patches, as suggested by Conor
  * Fix the changelog, add Fixes tag, as suggested by Conor

Alexandre Ghiti (3):
  riscv: Move early dtb mapping into the fixmap region
  riscv: Do not set initial_boot_params to the linear address of the dtb
  riscv: No need to relocate the dtb as it lies in the fixmap region

 Documentation/riscv/vm-layout.rst |  6 +--
 arch/riscv/include/asm/fixmap.h   |  8 +++
 arch/riscv/include/asm/pgtable.h  |  8 ++-
 arch/riscv/kernel/setup.c         |  6 +--
 arch/riscv/mm/init.c              | 82 ++++++++++++++-----------------
 5 files changed, 54 insertions(+), 56 deletions(-)

Comments

Palmer Dabbelt April 14, 2023, 1:13 a.m. UTC | #1 
On Wed, 29 Mar 2023 10:19:29 +0200, Alexandre Ghiti wrote:
> We used to map the dtb differently between early_pg_dir and
> swapper_pg_dir which caused issues when we referenced addresses from
> the early mapping with swapper_pg_dir (reserved_mem): move the dtb mapping
> to the fixmap region in patch 1, which allows to simplify dtb handling in
> patch 2.
> 
> base-commit-tag: v6.3-rc3
> 
> [...]

Applied, thanks!

[1/3] riscv: Move early dtb mapping into the fixmap region
      https://git.kernel.org/palmer/c/99a289623453
[2/3] riscv: Do not set initial_boot_params to the linear address of the dtb
      https://git.kernel.org/palmer/c/becc32e1f2ef
[3/3] riscv: No need to relocate the dtb as it lies in the fixmap region
      https://git.kernel.org/palmer/c/585da9dacc9c

Best regards,
patchwork-bot+linux-riscv@kernel.org April 14, 2023, 1:20 a.m. UTC | #2 
Hello:

This series was applied to riscv/linux.git (fixes)
by Palmer Dabbelt <palmer@rivosinc.com>:

On Wed, 29 Mar 2023 10:19:29 +0200 you wrote:
> We used to map the dtb differently between early_pg_dir and
> swapper_pg_dir which caused issues when we referenced addresses from
> the early mapping with swapper_pg_dir (reserved_mem): move the dtb mapping
> to the fixmap region in patch 1, which allows to simplify dtb handling in
> patch 2.
> 
> base-commit-tag: v6.3-rc3
> 
> [...]

Here is the summary with links:
  - [-fixes,v2,1/3] riscv: Move early dtb mapping into the fixmap region
    https://git.kernel.org/riscv/c/ef69d2559fe9
  - [-fixes,v2,2/3] riscv: Do not set initial_boot_params to the linear address of the dtb
    https://git.kernel.org/riscv/c/f1581626071c
  - [-fixes,v2,3/3] riscv: No need to relocate the dtb as it lies in the fixmap region
    https://git.kernel.org/riscv/c/1b50f956c8fe

You are awesome, thank you!