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| author | Simon Glass <sjg@chromium.org> | 2023-07-15 21:38:36 -0600 |
|---|---|---|
| committer | Bin Meng <bmeng@tinylab.org> | 2023-07-17 17:08:44 +0800 |
| commit | 4fb2536e5b17de99cfc44e985a1f617b1dfc0a22 (patch) | |
| tree | 454cf97dea9f484ba513be29130cad3c3912f30b /arch/x86/include | |
| parent | 3693d348958f2d6339adb20489dd31bc08ddde83 (diff) | |
| download | u-boot-4fb2536e5b17de99cfc44e985a1f617b1dfc0a22.tar.gz u-boot-4fb2536e5b17de99cfc44e985a1f617b1dfc0a22.tar.bz2 u-boot-4fb2536e5b17de99cfc44e985a1f617b1dfc0a22.zip | |
x86: Allow listing MTRRs in SPL
Move MTRR-listing code into a common file so it can be used from SPL.
Update the 'mtrr' command to call it.
Use this in SPL just before adjusting the MTRRs, so we can see the state
set up by the board. Only show it when debug is enabled.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/mtrr.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h index ca2edc7878..2e995f5406 100644 --- a/arch/x86/include/asm/mtrr.h +++ b/arch/x86/include/asm/mtrr.h @@ -190,6 +190,26 @@ int mtrr_set(int cpu_select, int reg, u64 base, u64 mask); */ int mtrr_get_var_count(void); +/** + * mtrr_list() - List the MTRRs + * + * Shows a list of all the MTRRs including their values + * + * @reg_count: Number of registers to show. You can use mtrr_get_var_count() for + * this + * @cpu_select: CPU to use. Use MP_SELECT_BSP for the boot CPU + * Returns: 0 if OK, -ve if the CPU was not found + */ +int mtrr_list(int reg_count, int cpu_select); + +/** + * mtrr_get_type_by_name() - Get the type of an MTRR given its type name + * + * @typename: Name to check + * Returns: MTRR type (MTRR_TYPE_...) or -EINVAL if invalid + */ +int mtrr_get_type_by_name(const char *typename); + #endif #if ((CONFIG_XIP_ROM_SIZE & (CONFIG_XIP_ROM_SIZE - 1)) != 0) |