threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
41 lines
657 B
C
41 lines
657 B
C
/*
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* Copyright 2014, Michael Ellerman, IBM Corp.
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* Licensed under GPLv2.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include "ebb.h"
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/*
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* Test basic access to the EBB regs, they should be user accessible with no
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* kernel interaction required.
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*/
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int reg_access(void)
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{
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uint64_t val, expected;
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SKIP_IF(!ebb_is_supported());
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expected = 0x8000000100000000ull;
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mtspr(SPRN_BESCR, expected);
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val = mfspr(SPRN_BESCR);
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FAIL_IF(val != expected);
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expected = 0x0000000001000000ull;
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mtspr(SPRN_EBBHR, expected);
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val = mfspr(SPRN_EBBHR);
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FAIL_IF(val != expected);
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return 0;
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}
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int main(void)
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{
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return test_harness(reg_access, "reg_access");
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}
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