diff options
| author | Borislav Petkov (AMD) <bp@alien8.de> | 2023-11-13 14:52:52 +0100 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2023-11-20 10:19:27 +0100 |
| commit | 4e15b91c5b7919c530c27f39c7f2d392bf0a95e3 (patch) | |
| tree | 42951a2e89e47051ce379dbb748e16209f6ef70f /arch/x86/kernel/cpu | |
| parent | f7a25cf1d4707da39b80df96a3be8a8abd07c35b (diff) | |
x86/mtrr: Document missing function parameters in kernel-doc
Add text explaining what they do.
No functional changes.
Closes: https://lore.kernel.org/oe-kbuild-all/202311130104.9xKAKzke-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/202311130104.9xKAKzke-lkp@intel.com
Diffstat (limited to 'arch/x86/kernel/cpu')
| -rw-r--r-- | arch/x86/kernel/cpu/mtrr/generic.c | 14 |
1 files changed, 10 insertions, 4 deletions
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 2d6aa5d2e3d7..d3524778a545 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -428,6 +428,10 @@ void __init mtrr_copy_map(void) * from the x86_init.hyper.init_platform() hook. It can be called only once. * The MTRR state can't be changed afterwards. To ensure that, X86_FEATURE_MTRR * is cleared. + * + * @var: MTRR variable range array to use + * @num_var: length of the @var array + * @def_type: default caching type */ void mtrr_overwrite_state(struct mtrr_var_range *var, unsigned int num_var, mtrr_type def_type) @@ -492,13 +496,15 @@ static u8 type_merge(u8 type, u8 new_type, u8 *uniform) /** * mtrr_type_lookup - look up memory type in MTRR * + * @start: Begin of the physical address range + * @end: End of the physical address range + * @uniform: output argument: + * - 1: the returned MTRR type is valid for the whole region + * - 0: otherwise + * * Return Values: * MTRR_TYPE_(type) - The effective MTRR type for the region * MTRR_TYPE_INVALID - MTRR is disabled - * - * Output Argument: - * uniform - Set to 1 when the returned MTRR type is valid for the whole - * region, set to 0 else. */ u8 mtrr_type_lookup(u64 start, u64 end, u8 *uniform) { |