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| author | Hari Bathini <hbathini@linux.ibm.com> | 2024-05-09 17:27:53 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2024-05-10 16:36:10 +1000 |
| commit | 78d5cc15fb7d1b2683f0baf418a9a870c02319fb (patch) | |
| tree | ea3a6361476b14d363b0fee5e73a9a51f829a282 /arch/powerpc/include/asm/fadump-internal.h | |
| parent | 98ec6d38ee57a734123c6f5d42640804034024ef (diff) | |
| download | linux-stable-78d5cc15fb7d1b2683f0baf418a9a870c02319fb.tar.gz linux-stable-78d5cc15fb7d1b2683f0baf418a9a870c02319fb.tar.bz2 linux-stable-78d5cc15fb7d1b2683f0baf418a9a870c02319fb.zip | |
powerpc/pseries/fadump: add support for multiple boot memory regions
Currently, fadump on pseries assumes a single boot memory region even
though f/w supports more than one boot memory region. Add support for
more boot memory regions to make the implementation flexible for any
enhancements that introduce other region types. For this, rtas memory
structure for fadump is updated to have multiple boot memory regions
instead of just one. Additionally, methods responsible for creating
the fadump memory structure during both the first and second kernel
boot have been modified to take these multiple boot memory regions
into account. Also, a new callback has been added to the fadump_ops
structure to get the maximum boot memory regions supported by the
platform.
Signed-off-by: Sourabh Jain <sourabhjain@linux.ibm.com>
Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20240509115755.519982-2-hbathini@linux.ibm.com
Diffstat (limited to 'arch/powerpc/include/asm/fadump-internal.h')
| -rw-r--r-- | arch/powerpc/include/asm/fadump-internal.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/fadump-internal.h b/arch/powerpc/include/asm/fadump-internal.h index 5d706a7acc8a..35787fa1ac60 100644 --- a/arch/powerpc/include/asm/fadump-internal.h +++ b/arch/powerpc/include/asm/fadump-internal.h @@ -156,6 +156,7 @@ struct fadump_ops { struct seq_file *m); void (*fadump_trigger)(struct fadump_crash_info_header *fdh, const char *msg); + int (*fadump_max_boot_mem_rgns)(void); }; /* Helper functions */ @@ -163,7 +164,6 @@ s32 __init fadump_setup_cpu_notes_buf(u32 num_cpus); void fadump_free_cpu_notes_buf(void); u32 *__init fadump_regs_to_elf_notes(u32 *buf, struct pt_regs *regs); void __init fadump_update_elfcore_header(char *bufp); -bool is_fadump_boot_mem_contiguous(void); bool is_fadump_reserved_mem_contiguous(void); #else /* !CONFIG_PRESERVE_FA_DUMP */ |