archive/jdk
1
0
Fork 0
mirror of https://github.com/openjdk/jdk.git synced 2025-09-19 10:34:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

7006505: Use kstat info to identify SPARC processor

Browse source 
Read Solaris kstat data to get more precise CPU information

Reviewed-by: iveresov, never, twisti, dholmes
This commit is contained in:
Vladimir Kozlov 2010-12-16 14:15:12 -08:00
parent b80ad03e3f
commit 9fd396ce55
8 changed files with 136 additions and 51 deletions
Download patch file Download diff file Expand all files Collapse all files

36
hotspot/src/cpu/sparc/vm/vm_version_sparc.hpp
View file

@ -41,7 +41,12 @@ protected:
vis2_instructions = 7,
sun4v_instructions = 8,
blk_init_instructions = 9,
fmaf_instructions = 10
fmaf_instructions = 10,
fmau_instructions = 11,
vis3_instructions = 12,
sparc64_family = 13,
T_family = 14,
T1_model = 15
};
enum Feature_Flag_Set {
@ -59,6 +64,11 @@ protected:
sun4v_m = 1 << sun4v_instructions,
blk_init_instructions_m = 1 << blk_init_instructions,
fmaf_instructions_m = 1 << fmaf_instructions,
fmau_instructions_m = 1 << fmau_instructions,
vis3_instructions_m = 1 << vis3_instructions,
sparc64_family_m = 1 << sparc64_family,
T_family_m = 1 << T_family,
T1_model_m = 1 << T1_model,
generic_v8_m = v8_instructions_m | hardware_mul32_m | hardware_div32_m | hardware_fsmuld_m,
generic_v9_m = generic_v8_m | v9_instructions_m,
@ -76,8 +86,13 @@ protected:
static int determine_features();
static int platform_features(int features);
static bool is_niagara1(int features) { return (features & sun4v_m) != 0; }
static bool is_sparc64(int features) { return (features & fmaf_instructions_m) != 0; }
// Returns true if the platform is in the niagara line (T series)
static bool is_T_family(int features) { return (features & T_family_m) != 0; }
static bool is_niagara() { return is_T_family(_features); }
DEBUG_ONLY( static bool is_niagara(int features) { return (features & sun4v_m) != 0; } )
// Returns true if it is niagara1 (T1).
static bool is_T1_model(int features) { return is_T_family(features) && ((features & T1_model_m) != 0); }
static int maximum_niagara1_processor_count() { return 32; }
@ -94,6 +109,7 @@ public:
static bool has_hardware_popc() { return (_features & hardware_popc_m) != 0; }
static bool has_vis1() { return (_features & vis1_instructions_m) != 0; }
static bool has_vis2() { return (_features & vis2_instructions_m) != 0; }
static bool has_vis3() { return (_features & vis3_instructions_m) != 0; }
static bool has_blk_init() { return (_features & blk_init_instructions_m) != 0; }
static bool supports_compare_and_exchange()
@ -101,14 +117,14 @@ public:
static bool is_ultra3() { return (_features & ultra3_m) == ultra3_m; }
static bool is_sun4v() { return (_features & sun4v_m) != 0; }
static bool is_niagara1() { return is_niagara1(_features); }
// Returns true if the platform is in the niagara line and
// newer than the niagara1.
static bool is_niagara1_plus();
static bool is_sparc64() { return is_sparc64(_features); }
// Returns true if the platform is in the niagara line (T series)
// and newer than the niagara1.
static bool is_niagara_plus() { return is_T_family(_features) && !is_T1_model(_features); }
// Fujitsu SPARC64
static bool is_sparc64() { return (_features & sparc64_family_m) != 0; }
static bool has_fast_fxtof() { return has_v9() && !is_ultra3(); }
static bool has_fast_idiv() { return is_niagara1_plus() || is_sparc64(); }
static bool has_fast_fxtof() { return is_niagara() || is_sparc64() || has_v9() && !is_ultra3(); }
static bool has_fast_idiv() { return is_niagara_plus() || is_sparc64(); }
static const char* cpu_features() { return _features_str; }