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111 lines
4.3 KiB
111 lines
4.3 KiB
commit 856bab7717ef6d1033fd7cbf7cfb2ddefbfffb07 |
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Author: Andreas Schwab <schwab@suse.de> |
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Date: Thu Feb 9 14:56:21 2023 +0100 |
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x86/dl-cacheinfo: remove unsused parameter from handle_amd |
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Also replace an unreachable assert with __builtin_unreachable. |
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Conflicts: |
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sysdeps/x86/dl-cacheinfo.h |
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(different backport order downstream) |
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diff --git a/sysdeps/x86/dl-cacheinfo.h b/sysdeps/x86/dl-cacheinfo.h |
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index 3408700fc0b06e5b..cc2f8862ce88f655 100644 |
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--- a/sysdeps/x86/dl-cacheinfo.h |
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+++ b/sysdeps/x86/dl-cacheinfo.h |
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@@ -311,7 +311,7 @@ handle_intel (int name, const struct cpu_features *cpu_features) |
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static long int __attribute__ ((noinline)) |
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-handle_amd (int name, const struct cpu_features *cpu_features) |
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+handle_amd (int name) |
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{ |
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unsigned int eax; |
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unsigned int ebx; |
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@@ -334,24 +334,23 @@ handle_amd (int name, const struct cpu_features *cpu_features) |
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switch (name) |
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{ |
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- case _SC_LEVEL1_ICACHE_ASSOC: |
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- case _SC_LEVEL1_DCACHE_ASSOC: |
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- case _SC_LEVEL2_CACHE_ASSOC: |
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- case _SC_LEVEL3_CACHE_ASSOC: |
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- return ecx?((ebx >> 22) & 0x3ff) + 1 : 0; |
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- case _SC_LEVEL1_ICACHE_LINESIZE: |
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- case _SC_LEVEL1_DCACHE_LINESIZE: |
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- case _SC_LEVEL2_CACHE_LINESIZE: |
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- case _SC_LEVEL3_CACHE_LINESIZE: |
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- return ecx?(ebx & 0xfff) + 1 : 0; |
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- case _SC_LEVEL1_ICACHE_SIZE: |
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- case _SC_LEVEL1_DCACHE_SIZE: |
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- case _SC_LEVEL2_CACHE_SIZE: |
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- case _SC_LEVEL3_CACHE_SIZE: |
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- return ecx?(((ebx >> 22) & 0x3ff) + 1)*((ebx & 0xfff) + 1)\ |
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- *(ecx + 1):0; |
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- default: |
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- assert (! "cannot happen"); |
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+ case _SC_LEVEL1_ICACHE_ASSOC: |
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+ case _SC_LEVEL1_DCACHE_ASSOC: |
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+ case _SC_LEVEL2_CACHE_ASSOC: |
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+ case _SC_LEVEL3_CACHE_ASSOC: |
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+ return ecx ? ((ebx >> 22) & 0x3ff) + 1 : 0; |
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+ case _SC_LEVEL1_ICACHE_LINESIZE: |
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+ case _SC_LEVEL1_DCACHE_LINESIZE: |
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+ case _SC_LEVEL2_CACHE_LINESIZE: |
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+ case _SC_LEVEL3_CACHE_LINESIZE: |
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+ return ecx ? (ebx & 0xfff) + 1 : 0; |
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+ case _SC_LEVEL1_ICACHE_SIZE: |
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+ case _SC_LEVEL1_DCACHE_SIZE: |
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+ case _SC_LEVEL2_CACHE_SIZE: |
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+ case _SC_LEVEL3_CACHE_SIZE: |
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+ return ecx ? (((ebx >> 22) & 0x3ff) + 1) * ((ebx & 0xfff) + 1) * (ecx + 1): 0; |
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+ default: |
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+ __builtin_unreachable (); |
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} |
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return -1; |
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} |
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@@ -701,31 +700,26 @@ dl_init_cacheinfo (struct cpu_features *cpu_features) |
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} |
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else if (cpu_features->basic.kind == arch_kind_amd) |
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{ |
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- data = handle_amd (_SC_LEVEL1_DCACHE_SIZE, cpu_features); |
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- core = handle_amd (_SC_LEVEL2_CACHE_SIZE, cpu_features); |
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- shared = handle_amd (_SC_LEVEL3_CACHE_SIZE, cpu_features); |
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+ data = handle_amd (_SC_LEVEL1_DCACHE_SIZE); |
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+ core = handle_amd (_SC_LEVEL2_CACHE_SIZE); |
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+ shared = handle_amd (_SC_LEVEL3_CACHE_SIZE); |
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shared_per_thread = shared; |
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- level1_icache_size = handle_amd (_SC_LEVEL1_ICACHE_SIZE, cpu_features); |
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- level1_icache_linesize |
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- = handle_amd (_SC_LEVEL1_ICACHE_LINESIZE, cpu_features); |
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+ level1_icache_size = handle_amd (_SC_LEVEL1_ICACHE_SIZE); |
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+ level1_icache_linesize = handle_amd (_SC_LEVEL1_ICACHE_LINESIZE); |
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level1_dcache_size = data; |
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- level1_dcache_assoc |
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- = handle_amd (_SC_LEVEL1_DCACHE_ASSOC, cpu_features); |
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- level1_dcache_linesize |
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- = handle_amd (_SC_LEVEL1_DCACHE_LINESIZE, cpu_features); |
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+ level1_dcache_assoc = handle_amd (_SC_LEVEL1_DCACHE_ASSOC); |
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+ level1_dcache_linesize = handle_amd (_SC_LEVEL1_DCACHE_LINESIZE); |
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level2_cache_size = core; |
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- level2_cache_assoc = handle_amd (_SC_LEVEL2_CACHE_ASSOC, cpu_features); |
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- level2_cache_linesize |
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- = handle_amd (_SC_LEVEL2_CACHE_LINESIZE, cpu_features); |
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+ level2_cache_assoc = handle_amd (_SC_LEVEL2_CACHE_ASSOC); |
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+ level2_cache_linesize = handle_amd (_SC_LEVEL2_CACHE_LINESIZE); |
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level3_cache_size = shared; |
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- level3_cache_assoc = handle_amd (_SC_LEVEL3_CACHE_ASSOC, cpu_features); |
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- level3_cache_linesize |
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- = handle_amd (_SC_LEVEL3_CACHE_LINESIZE, cpu_features); |
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+ level3_cache_assoc = handle_amd (_SC_LEVEL3_CACHE_ASSOC); |
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+ level3_cache_linesize = handle_amd (_SC_LEVEL3_CACHE_LINESIZE); |
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if (shared <= 0) |
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/* No shared L3 cache. All we have is the L2 cache. */ |
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- shared = core; |
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+ shared = core; |
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if (shared_per_thread <= 0) |
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shared_per_thread = shared;
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