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| author | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-07-04 11:04:54 +0300 |
|---|---|---|
| committer | Philipp Tomsich <philipp.tomsich@theobroma-systems.com> | 2017-08-13 18:12:21 +0300 |
| commit | e6a05862776debf919bb857f8ff1155e878da128 (patch) | |
| tree | 8677038e29bd6a914fca4e3dce1d60159e7bcea9 /arch/arm/cpu/armv8/tlb.S | |
| parent | f1c6e1922eb57f4a212c09709801a1cc7920ffa9 (diff) | |
| download | u-boot-e6a05862776debf919bb857f8ff1155e878da128.tar.xz | |
armv8: move low-level assembly functions into function-sections
TPL builds today don't need to call into firmware or set up the MMU
(if this changes, it should be controlled through a config option
whether to include this or not), but include the needed support code
for this anyway. By moving these unused low-level functions into
seperate function-sections, the linker can garbage-collect the unused
sections.
Note that (if DM support is enabled), there will be a call to the
cache-flushing code from alloc_priv(...) in drivers/core/device.c.
This then add 52 bytes of binary size (an increase from 20589 to 20641
bytes) compared to completely removing this code.
Even for a feature-rich TPL (including DM support as for the RK3368),
this equates to a size difference of significantly more than 10% in
TPL binary size.
Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/arm/cpu/armv8/tlb.S')
| -rw-r--r-- | arch/arm/cpu/armv8/tlb.S | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv8/tlb.S b/arch/arm/cpu/armv8/tlb.S index 945445bc37..6743111b6a 100644 --- a/arch/arm/cpu/armv8/tlb.S +++ b/arch/arm/cpu/armv8/tlb.S @@ -14,7 +14,8 @@ * void __asm_invalidate_tlb_all(void) * * invalidate all tlb entries. - */ +*/ +.pushsection .text.__asm_invalidate_tlb_all, "ax" ENTRY(__asm_invalidate_tlb_all) switch_el x9, 3f, 2f, 1f 3: tlbi alle3 @@ -31,3 +32,4 @@ ENTRY(__asm_invalidate_tlb_all) 0: ret ENDPROC(__asm_invalidate_tlb_all) +.popsection |