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| author |   Mike Travis <mike.travis@hpe.com> | 2019-09-10 09:58:42 -0500 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2019-10-07 13:42:10 +0200 |
| commit | 9743cb68f736d986481edba4d00de454d2faa0ec (patch) | |
| tree | 0d84152fb30f0a88f5e83b179c7628a11b54786a /arch/x86/platform/uv/bios_uv.c | |
| parent | x86/platform/uv: Return UV Hubless System Type (diff) | |
| download | linux-dev-9743cb68f736d986481edba4d00de454d2faa0ec.tar.xz linux-dev-9743cb68f736d986481edba4d00de454d2faa0ec.zip | |
x86/platform/uv: Add return code to UV BIOS Init function
Add a return code to the UV BIOS init function that indicates the
successful initialization of the kernel/BIOS callback interface.
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hedi Berriche <hedi.berriche@hpe.com>
Cc: Justin Ernst <justin.ernst@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190910145839.895739629@stormcage.eag.rdlabs.hpecorp.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/platform/uv/bios_uv.c')
| -rw-r--r-- | arch/x86/platform/uv/bios_uv.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/x86/platform/uv/bios_uv.c b/arch/x86/platform/uv/bios_uv.c index c2ee31953372..ece9cb9c1189 100644 --- a/arch/x86/platform/uv/bios_uv.c +++ b/arch/x86/platform/uv/bios_uv.c @@ -184,20 +184,20 @@ int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus) } EXPORT_SYMBOL_GPL(uv_bios_set_legacy_vga_target); -void uv_bios_init(void) +int uv_bios_init(void) { uv_systab = NULL; if ((uv_systab_phys == EFI_INVALID_TABLE_ADDR) || !uv_systab_phys || efi_runtime_disabled()) { pr_crit("UV: UVsystab: missing\n"); - return; + return -EEXIST; } uv_systab = ioremap(uv_systab_phys, sizeof(struct uv_systab)); if (!uv_systab || strncmp(uv_systab->signature, UV_SYSTAB_SIG, 4)) { pr_err("UV: UVsystab: bad signature!\n"); iounmap(uv_systab); - return; + return -EINVAL; } /* Starting with UV4 the UV systab size is variable */ @@ -208,8 +208,9 @@ void uv_bios_init(void) uv_systab = ioremap(uv_systab_phys, size); if (!uv_systab) { pr_err("UV: UVsystab: ioremap(%d) failed!\n", size); - return; + return -EFAULT; } } pr_info("UV: UVsystab: Revision:%x\n", uv_systab->revision); + return 0; } |