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| author | Alistair Delva <adelva@google.com> | 2021-02-16 21:01:22 +0000 |
|---|---|---|
| committer | Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com> | 2021-02-16 21:01:22 +0000 |
| commit | efb2826bb8160e2d8e0fcec85133a7468484f9fd (patch) | |
| tree | 37a21c69306801ee7cdda5167a30896c8740155b /lib/cpus/aarch64/neoverse_n_common.S | |
| parent | b00a71fc312c9781fa6f404dccfb55b062b2ccac (diff) | |
| parent | faa476c0caaa598afa5a6109d17102db5fe35ec6 (diff) | |
| download | platform_external_arm-trusted-firmware-master.tar.gz platform_external_arm-trusted-firmware-master.tar.bz2 platform_external_arm-trusted-firmware-master.zip | |
Merge branch 'aosp/upstream-master' into HEAD am: faa476c0caHEADandroid-s-beta-5android-s-beta-4android-s-beta-3android-s-beta-2android-s-beta-1mastermain-cg-testing-releaseandroid-s-beta-5android-s-beta-4
Original change: https://android-review.googlesource.com/c/platform/external/arm-trusted-firmware/+/1589611
MUST ONLY BE SUBMITTED BY AUTOMERGER
Change-Id: I3a25534ceed4f8e188510641080d8b8ed49b8f62
Diffstat (limited to 'lib/cpus/aarch64/neoverse_n_common.S')
| -rw-r--r-- | lib/cpus/aarch64/neoverse_n_common.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/cpus/aarch64/neoverse_n_common.S b/lib/cpus/aarch64/neoverse_n_common.S new file mode 100644 index 000000000..b816342ba --- /dev/null +++ b/lib/cpus/aarch64/neoverse_n_common.S @@ -0,0 +1,26 @@ +/* + * Copyright (c) 2020, Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <asm_macros.S> +#include <neoverse_n_common.h> + + .global is_scu_present_in_dsu + +/* + * Check if the SCU L3 Unit is present on the DSU + * 1-> SCU present + * 0-> SCU not present + * + * This function is implemented as weak on dsu_helpers.S and must be + * overwritten for Neoverse Nx cores. + */ + +func is_scu_present_in_dsu + mrs x0, CPUCFR_EL1 + ubfx x0, x0, #SCU_SHIFT, #1 + eor x0, x0, #1 + ret +endfunc is_scu_present_in_dsu |