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| author | Andrew Thoelke <andrew.thoelke@arm.com> | 2014-04-28 12:32:02 +0100 |
|---|---|---|
| committer | Andrew Thoelke <andrew.thoelke@arm.com> | 2014-05-07 11:29:50 +0100 |
| commit | 7935d0a59d439c993b79814ab414d37e4a90d9a6 (patch) | |
| tree | b441893641316f785bf782b24ac8877252eb8afb /include/common | |
| parent | 2f5dcfef1db42f3b073ae657f8a94925abecd768 (diff) | |
Access system registers directly in assembler
Instead of using the system register helper functions to read
or write system registers, assembler coded functions should
use MRS/MSR instructions. This results in faster and more
compact code.
This change replaces all usage of the helper functions with
direct register accesses.
Change-Id: I791d5f11f257010bb3e6a72c6c5ab8779f1982b3
Diffstat (limited to 'include/common')
| -rw-r--r-- | include/common/asm_macros.S | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/common/asm_macros.S b/include/common/asm_macros.S index 6cf1a19..a41b729 100644 --- a/include/common/asm_macros.S +++ b/include/common/asm_macros.S @@ -58,7 +58,7 @@ .macro smc_check label - bl read_esr + mrs x0, esr_el3 ubfx x0, x0, #ESR_EC_SHIFT, #ESR_EC_LENGTH cmp x0, #EC_AARCH64_SMC b.ne $label |