X-Git-Url: https://git.ozlabs.org/?a=blobdiff_plain;f=ccan%2Fcpuid%2Fcpuid.h;h=7bf903a6db397af69c454cd20eab3a061d1b084a;hb=ef47a9814be99eb66c906c01a36dd19e3a5f69ee;hp=0a9fc9d91ac84bb1d98cc27e80bb1b5ae5a914da;hpb=a87884aabba198a1d44e22f89c5477f1b8167ffd;p=ccan

diff --git a/ccan/cpuid/cpuid.h b/ccan/cpuid/cpuid.h
index 0a9fc9d9..7bf903a6 100644
--- a/ccan/cpuid/cpuid.h
+++ b/ccan/cpuid/cpuid.h
@@ -26,7 +26,7 @@
 #include <stdint.h>
 
 /**
- * enum cpuid - stuff to get information on from the CPU.
+ * enum cpuid - stuff to get information about from the CPU.
  *
  * This is used as a parameter in cpuid().
  *
@@ -124,14 +124,17 @@ typedef enum cputype {
  *
  * See also: cpuid_get_cpu_type_string()
  */
+#define is_intel_cpu() 	cpuid_get_cpu_type() == CT_INTEL
+#define is_amd_cpu() 	cpuid_get_cpu_type() == CT_AMDK5 || cpuid_get_cpu_type() == CT_AMD
 cputype_t cpuid_get_cpu_type(void);
 
 /**
- * cpuid_get_cpu_type_string - Get CPU Type string
+ * cpuid_sprintf_cputype - Get CPU Type string
+ * @cputype: a char of atleast 12 bytes in it.
  *
- * Returns the CPU type string based off cputype_t.
+ * Returns true on success, false on failure
  */
-const char *cpuid_get_cpu_type_string(const cputype_t cputype);
+bool cpuid_sprintf_cputype(const cputype_t cputype, char *buf);
 
 /**
  * cpuid_is_supported - test if the CPUID instruction is supported
@@ -205,8 +208,14 @@ uint32_t cpuid_highest_ext_func_supported(void);
  * For CPU_EXTENDED_PROC_INFO_FEATURE_BITS:
  * 	Returns them in buf[0] and buf[1].
  *
+ * For CPU_EXTENDED_L2_CACHE_FEATURES:
+ * 	buf[0]: Line size
+ * 	buf[1]: Associativity
+ * 	buf[2]: Cache size.
+ *
  * For CPU_VIRT_PHYS_ADDR_SIZES:
- * 	Returns it as an integer in *buf.
+ * 	buf[0]: Physical
+ * 	buf[1]: Virtual
  *
  * For CPU_PROC_BRAND_STRING:
  * 	Have a char array with at least 48 bytes assigned to it.
@@ -269,4 +278,3 @@ bool cpuid_has_feature(int feature, bool extended);
 
 #endif
 #endif
-