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[PW_SID:1063593] riscv: mm: Define DIRECT_MAP_PHYSMEM_END, fix ZONE_DEVICE#1577

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[PW_SID:1063593] riscv: mm: Define DIRECT_MAP_PHYSMEM_END, fix ZONE_DEVICE#1577
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PR for series 1063593 applied to workflow__riscv__fixes

Name: riscv: mm: Define DIRECT_MAP_PHYSMEM_END, fix ZONE_DEVICE
URL: https://patchwork.kernel.org/project/linux-riscv/list/?series=1063593
Version: 1

Similarly to the same check in arch/arm64/mm/mmu.c, in
vmemmap_populate(), add a warning for start and end being outside of the
range of vmemmap.

Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
On RISC-V, the actual mappable range of physical address space is
dependent on the current MMU mode i.e. satp_mode (See
Documentation/arch/riscv/vm-layout.rst).

Define the DIRECT_MAP_PHYSMEM_END macro based on the existing virtual
address space layout macros to expose this information to
get_free_mem_region(). Otherwise, it returns a region that couldn't be
mapped, which breaks ZONE_DEVICE.

Cc: <stable@vger.kernel.org> # v6.13+
Tested-by: Han Gao <gaohan@iscas.ac.cn> # SG2044
Signed-off-by: Vivian Wang <wangruikang@iscas.ac.cn>
Signed-off-by: Linux RISC-V bot <linux.riscv.bot@gmail.com>
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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 136.96 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 1107.70 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 1619.77 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 26.72 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.82 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 0.76 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.77 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.22 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
kdoc
Desc: Detects for kdoc errors
Duration: 0.88 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
module-param
Desc: Detect module_param changes
Duration: 0.25 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.21 seconds
Result: PASS

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Patch 1: "[1/2] riscv: mm: WARN_ON() for bad addresses in vmemmap_populate()"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.29 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
build-rv32-defconfig
Desc: Builds riscv32 defconfig
Duration: 136.42 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
build-rv64-clang-allmodconfig
Desc: Builds riscv64 allmodconfig with Clang, and checks for errors and added warnings
Duration: 2161.42 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
build-rv64-gcc-allmodconfig
Desc: Builds riscv64 allmodconfig with GCC, and checks for errors and added warnings
Duration: 2919.61 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
build-rv64-nommu-k210-defconfig
Desc: Builds riscv64 defconfig with NOMMU for K210
Duration: 26.93 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
build-rv64-nommu-k210-virt
Desc: Builds riscv64 defconfig with NOMMU for the virt platform
Duration: 27.62 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
checkpatch
Desc: Runs checkpatch.pl on the patch
Duration: 1.65 seconds
Result: WARNING
Output:

WARNING: The commit message has 'stable@', perhaps it also needs a 'Fixes:' tag?

total: 0 errors, 1 warnings, 0 checks, 16 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit af3dbaff83d9 ("riscv: mm: Define DIRECT_MAP_PHYSMEM_END") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 1 warnings, 0 checks, 16 lines checked
WARNING: The commit message has 'stable@', perhaps it also needs a 'Fixes:' tag?


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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
dtb-warn-rv64
Desc: Checks for Device Tree warnings/errors
Duration: 82.31 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
header-inline
Desc: Detects static functions without inline keyword in header files
Duration: 0.23 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
kdoc
Desc: Detects for kdoc errors
Duration: 0.79 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
module-param
Desc: Detect module_param changes
Duration: 0.24 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
verify-fixes
Desc: Verifies that the Fixes: tags exist
Duration: 0.22 seconds
Result: PASS

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Patch 2: "[2/2] riscv: mm: Define DIRECT_MAP_PHYSMEM_END"
verify-signedoff
Desc: Verifies that Signed-off-by: tags are correct
Duration: 0.30 seconds
Result: PASS

@linux-riscv-bot linux-riscv-bot deleted the pw1063593 branch March 17, 2026 01:25
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