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author | Milosz Wasilewski <milosz.wasilewski@hackbox.linaro.org> | 2014-10-01 15:24:10 +0100 |
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committer | Milosz Wasilewski <milosz.wasilewski@hackbox.linaro.org> | 2014-10-01 15:24:10 +0100 |
commit | e14eb051ff73ab8692770762adf44045ba092398 (patch) | |
tree | 117c21aa0b42865a321b078ddb71c410506c51c9 /powerpc/pmu/ebb/reg_access_test.c | |
parent | 6c2a5f64d0517e100c569b59423d5f5abc627a7c (diff) |
Update to aad7fb916a10f1065ad23de0c80a4a04bcba8437 from repo git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git branch masterfe82dcec644244676d55a1384c958d5f67979adbaad7fb916a10f1065ad23de0c80a4a04bcba8437
Diffstat (limited to 'powerpc/pmu/ebb/reg_access_test.c')
-rw-r--r-- | powerpc/pmu/ebb/reg_access_test.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/powerpc/pmu/ebb/reg_access_test.c b/powerpc/pmu/ebb/reg_access_test.c new file mode 100644 index 0000000..0cae66f --- /dev/null +++ b/powerpc/pmu/ebb/reg_access_test.c @@ -0,0 +1,39 @@ +/* + * Copyright 2014, Michael Ellerman, IBM Corp. + * Licensed under GPLv2. + */ + +#include <stdio.h> +#include <stdlib.h> + +#include "ebb.h" +#include "reg.h" + + +/* + * Test basic access to the EBB regs, they should be user accessible with no + * kernel interaction required. + */ +int reg_access(void) +{ + uint64_t val, expected; + + expected = 0x8000000100000000ull; + mtspr(SPRN_BESCR, expected); + val = mfspr(SPRN_BESCR); + + FAIL_IF(val != expected); + + expected = 0x0000000001000000ull; + mtspr(SPRN_EBBHR, expected); + val = mfspr(SPRN_EBBHR); + + FAIL_IF(val != expected); + + return 0; +} + +int main(void) +{ + return test_harness(reg_access, "reg_access"); +} |