diff options
Diffstat (limited to 'arch/arm64/kernel')
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 071a4548a231..96b15d7b10a8 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -1624,6 +1624,7 @@ static void __init setup_system_capabilities(void) void __init setup_cpu_features(void) { u32 cwg; + int cls; setup_system_capabilities(); mark_const_caps_ready(); @@ -1644,9 +1645,13 @@ void __init setup_cpu_features(void) * Check for sane CTR_EL0.CWG value. */ cwg = cache_type_cwg(); + cls = cache_line_size(); if (!cwg) - pr_warn("No Cache Writeback Granule information, assuming %d\n", - ARCH_DMA_MINALIGN); + pr_warn("No Cache Writeback Granule information, assuming cache line size %d\n", + cls); + if (L1_CACHE_BYTES < cls) + pr_warn("L1_CACHE_BYTES smaller than the Cache Writeback Granule (%d < %d)\n", + L1_CACHE_BYTES, cls); } static bool __maybe_unused |