<sys/platform/x86.h>: Add PREFETCHI support

Add PREFETCHI support to <sys/platform/x86.h>.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>

diff --git a/manual/platform.texi b/manual/platform.texi
index e7448ff..c6ed73c 100644 (file)
--- a/manual/platform.texi
+++ b/manual/platform.texi
@@ -534,6 +534,9 @@ extended state management using XSAVE/XRSTOR.
 @code{PREFETCHWT1} -- PREFETCHWT1 instruction.
 
 @item
+@code{PREFETCHI} -- PREFETCHIT0/1 instructions.
+
+@item
 @code{PSE} -- Page Size Extension.
 
 @item

diff --git a/sysdeps/x86/bits/platform/x86.h b/sysdeps/x86/bits/platform/x86.h
index 96eb4c0..6555f9b 100644 (file)
--- a/sysdeps/x86/bits/platform/x86.h
+++ b/sysdeps/x86/bits/platform/x86.h
@@ -311,6 +311,7 @@ enum
   x86_cpu_AVX_VNNI_INT8                = x86_cpu_index_7_ecx_1_edx + 4,
   x86_cpu_AVX_NE_CONVERT       = x86_cpu_index_7_ecx_1_edx + 5,
   x86_cpu_AMX_COMPLEX          = x86_cpu_index_7_ecx_1_edx + 8,
+  x86_cpu_PREFETCHI            = x86_cpu_index_7_ecx_1_edx + 14,
 
   x86_cpu_index_19_ebx
     = (CPUID_INDEX_19 * 8 * 4 * sizeof (unsigned int)

diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index c2bea6a..5bff8ec 100644 (file)
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -104,6 +104,7 @@ update_active (struct cpu_features *cpu_features)
   CPU_FEATURE_SET_ACTIVE (cpu_features, FZLRM);
   CPU_FEATURE_SET_ACTIVE (cpu_features, FSRS);
   CPU_FEATURE_SET_ACTIVE (cpu_features, FSRCS);
+  CPU_FEATURE_SET_ACTIVE (cpu_features, PREFETCHI);
   CPU_FEATURE_SET_ACTIVE (cpu_features, PTWRITE);
 
   if (!CPU_FEATURES_CPU_P (cpu_features, RTM_ALWAYS_ABORT))

diff --git a/sysdeps/x86/include/cpu-features.h b/sysdeps/x86/include/cpu-features.h
index f14c107..40b8129 100644 (file)
--- a/sysdeps/x86/include/cpu-features.h
+++ b/sysdeps/x86/include/cpu-features.h
@@ -318,6 +318,7 @@ enum
 #define bit_cpu_AVX_VNNI_INT8  (1u << 4)
 #define bit_cpu_AVX_NE_CONVERT (1u << 5)
 #define bit_cpu_AMX_COMPLEX    (1u << 8)
+#define bit_cpu_PREFETCHI      (1u << 14)
 
 /* CPUID_INDEX_19.  */
 
@@ -560,6 +561,7 @@ enum
 #define index_cpu_AVX_VNNI_INT8        CPUID_INDEX_7_ECX_1
 #define index_cpu_AVX_NE_CONVERT CPUID_INDEX_7_ECX_1
 #define index_cpu_AMX_COMPLEX  CPUID_INDEX_7_ECX_1
+#define index_cpu_PREFETCHI    CPUID_INDEX_7_ECX_1
 
 /* CPUID_INDEX_19.  */
 
@@ -804,6 +806,7 @@ enum
 #define reg_AVX_VNNI_INT8      edx
 #define reg_AVX_NE_CONVERT     edx
 #define reg_AMX_COMPLEX                edx
+#define reg_PREFETCHI          edx
 
 /* CPUID_INDEX_19.  */
 

diff --git a/sysdeps/x86/tst-get-cpu-features.c b/sysdeps/x86/tst-get-cpu-features.c
index 87fe273..1bd7e0b 100644 (file)
--- a/sysdeps/x86/tst-get-cpu-features.c
+++ b/sysdeps/x86/tst-get-cpu-features.c
@@ -218,6 +218,7 @@ do_test (void)
   CHECK_CPU_FEATURE_PRESENT (AVX_VNNI_INT8);
   CHECK_CPU_FEATURE_PRESENT (AVX_NE_CONVERT);
   CHECK_CPU_FEATURE_PRESENT (AMX_COMPLEX);
+  CHECK_CPU_FEATURE_PRESENT (PREFETCHI);
   CHECK_CPU_FEATURE_PRESENT (AESKLE);
   CHECK_CPU_FEATURE_PRESENT (WIDE_KL);
   CHECK_CPU_FEATURE_PRESENT (PTWRITE);
@@ -388,6 +389,7 @@ do_test (void)
   CHECK_CPU_FEATURE_ACTIVE (AVX_VNNI_INT8);
   CHECK_CPU_FEATURE_ACTIVE (AVX_NE_CONVERT);
   CHECK_CPU_FEATURE_ACTIVE (AMX_COMPLEX);
+  CHECK_CPU_FEATURE_ACTIVE (PREFETCHI);
   CHECK_CPU_FEATURE_ACTIVE (AESKLE);
   CHECK_CPU_FEATURE_ACTIVE (WIDE_KL);
   CHECK_CPU_FEATURE_ACTIVE (PTWRITE);