Add Hygon Dhyana detect support

Signed-off-by: hygonsoc <hygonsoc@gmail.com>

libcpuid/cpuid_main.c

@@ -264,6 +264,7 @@ static cpu_vendor_t cpuid_vendor_identify(const uint32_t *raw_vendor, char *vend
 		{ VENDOR_RISE		, "RiseRiseRise" },
 		{ VENDOR_SIS		, "SiS SiS SiS " },
 		{ VENDOR_NSC		, "Geode by NSC" },
+		{ VENDOR_HYGON		, "HygonGenuine" },
 	};
 
 	memcpy(vendor_str + 0, &raw_vendor[1], 4);
@@ -519,6 +520,7 @@ int cpu_ident_internal(struct cpu_raw_data_t* raw, struct cpu_id_t* data, struct
 			r = cpuid_identify_intel(raw, data, internal);
 			break;
 		case VENDOR_AMD:
+		case VENDOR_HYGON:
 			r = cpuid_identify_amd(raw, data, internal);
 			break;
 		default:
@@ -729,6 +731,7 @@ void cpuid_get_cpu_list(cpu_vendor_t vendor, struct cpu_list_t* list)
 			cpuid_get_list_intel(list);
 			break;
 		case VENDOR_AMD:
+		case VENDOR_HYGON:
 			cpuid_get_list_amd(list);
 			break;
 		case VENDOR_CYRIX:

libcpuid/libcpuid.h

@@ -110,6 +110,7 @@ typedef enum {
 	VENDOR_RISE,       /*!< x86 CPU by Rise Technology */
 	VENDOR_SIS,        /*!< x86 CPU by SiS */
 	VENDOR_NSC,        /*!< x86 CPU by National Semiconductor */
+	VENDOR_HYGON,	   /*!< Hygon CPU */
 	
 	NUM_CPU_VENDORS,   /*!< Valid CPU vendor ids: 0..NUM_CPU_VENDORS - 1 */
 	VENDOR_UNKNOWN = -1,

libcpuid/libcpuid_internal.h

@@ -99,6 +99,7 @@ enum _amd_bits_t {
 	_X6          = LBIT( 24 ),
 	_FX          = LBIT( 25 ),
 	_APU_        = LBIT( 26 ),
+	C86_	     = LBIT( 27 ),
 };
 typedef enum _amd_bits_t amd_bits_t;
 

libcpuid/rdmsr.c

@@ -765,7 +765,7 @@ static double get_info_min_multiplier(struct msr_info_t *info)
 		err = cpu_rdmsr_range(info->handle, MSR_PLATFORM_INFO, 47, 40, &reg);
 		if (!err) return (double) reg;
 	}
-	else if(info->id->vendor == VENDOR_AMD) {
+	else if(info->id->vendor == VENDOR_AMD || info->id->vendor == VENDOR_HYGON) {
 		/* N.B.: Find the last P-state
 		get_amd_last_pstate_addr() returns the last P-state, MSR_PSTATE_0 <= addr <= MSR_PSTATE_7 */
 		addr = get_amd_last_pstate_addr(info);
@@ -794,7 +794,7 @@ static double get_info_cur_multiplier(struct msr_info_t *info)
 		err = cpu_rdmsr_range(info->handle, IA32_PERF_STATUS, 15, 8, &reg);
 		if (!err) return (double) reg;
 	}
-	else if(info->id->vendor == VENDOR_AMD) {
+	else if(info->id->vendor == VENDOR_AMD || info->id->vendor == VENDOR_HYGON) {
 		/* Refer links above
 		MSRC001_0063[2:0] is CurPstate */
 		err  = cpu_rdmsr_range(info->handle, MSR_PSTATE_S, 2, 0, &reg);
@@ -834,7 +834,7 @@ static double get_info_max_multiplier(struct msr_info_t *info)
 		err = cpu_rdmsr_range(info->handle, MSR_TURBO_RATIO_LIMIT, 7, 0, &reg);
 		if (!err) return (double) reg;
 	}
-	else if(info->id->vendor == VENDOR_AMD) {
+	else if(info->id->vendor == VENDOR_AMD || info->id->vendor == VENDOR_HYGON) {
 		/* Refer links above
 		MSRC001_0064 is Pb0
 		Pb0 is the highest-performance boosted P-state */
@@ -886,7 +886,7 @@ static double get_info_voltage(struct msr_info_t *info)
 		err = cpu_rdmsr_range(info->handle, MSR_PERF_STATUS, 47, 32, &reg);
 		if (!err) return (double) reg / (1 << 13);
 	}
-	else if(info->id->vendor == VENDOR_AMD) {
+	else if(info->id->vendor == VENDOR_AMD || info->id->vendor == VENDOR_HYGON) {
 		/* Refer links above
 		MSRC001_00[6B:64][15:9]  is CpuVid (Jaguar and before)
 		MSRC001_00[6B:64][21:14] is CpuVid (Zen)
@@ -926,7 +926,7 @@ static double get_info_bus_clock(struct msr_info_t *info)
 		err = cpu_rdmsr_range(info->handle, MSR_PLATFORM_INFO, 15, 8, &reg);
 		if (!err) return (double) info->cpu_clock / reg;
 	}
-	else if(info->id->vendor == VENDOR_AMD) {
+	else if(info->id->vendor == VENDOR_AMD || info->id->vendor == VENDOR_HYGON) {
 		/* Refer links above
 		MSRC001_0061[6:4] is PstateMaxVal
 		PstateMaxVal is the the lowest-performance non-boosted P-state */
@@ -1034,6 +1034,7 @@ int msr_serialize_raw_data(struct msr_driver_t* handle, const char* filename)
 
 	fprintf(f, "CPU is %s %s, stock clock is %dMHz.\n", id.vendor_str, id.brand_str, cpu_clock_measure(250, 1));
 	switch (id.vendor) {
+		case VENDOR_HYGON:
 		case VENDOR_AMD:   msr = amd_msr; break;
 		case VENDOR_INTEL: msr = intel_msr; break;
 		default: return set_error(ERR_CPU_UNKN);

libcpuid/rdtsc.c

@@ -251,7 +251,7 @@ static void adjust_march_ic_multiplier(const struct cpu_id_t* id, int* numerator
 	}
 	//
 	// Bulldozer or later: assume 1.4 IPC
-	if (id->vendor == VENDOR_AMD && id->ext_family >= 21) {
+	if ((id->vendor == VENDOR_AMD && id->ext_family >= 21) || (id->vendor == VENDOR_HYGON)) {
 		debugf(1, "cpu_clock_by_ic: Bulldozer (or later) detected, dividing result by 1.4\n");
 		*numerator = 5;
 		*denom = 7; // multiply by 5/7, to divide by 1.4

libcpuid/recog_amd.c

@@ -279,6 +279,10 @@ const struct match_entry_t cpudb_amd[] = {
 	{ 15, -1, -1, 23,    8,  -1,    -1,    -1, NC, RYZEN_|_5           ,     0, "Ryzen 5 (Pinnacle Ridge)"      },
 	{ 15, -1, -1, 23,    8,  -1,    -1,    -1, NC, RYZEN_|_3           ,     0, "Ryzen 3 (Pinnacle Ridge)"      },
 
+	{ 15, -1, -1, 24,    0,  -1,    -1,    -1, NC, C86_|_7              ,     0, "C86 7 (Dhyana)"               },
+	{ 15, -1, -1, 24,    0,  -1,    -1,    -1, NC, C86_|_5              ,     0, "C86 5 (Dhyana)"               },
+	{ 15, -1, -1, 24,    0,  -1,    -1,    -1, NC, C86_|_3              ,     0, "C86 3 (Dhyana)"               },
+
 
 	/* Newer Opterons: */
 	{ 15,  9, -1, 22,    9,   8,    -1,    -1, NC, OPTERON_            ,     0, "Magny-Cours Opteron"           },
@@ -459,6 +463,7 @@ static struct amd_code_and_bits_t decode_amd_codename_part1(const char *bs)
 		{ _APU_, " APU " },
 		{ EPYC_, "EPYC" },
 		{ RYZEN_TR_, "Ryzen Threadripper" },
+		{ C86_, "C86" },
 	};
 
 	for (i = 0; i < COUNT_OF(bit_matchtable); i++) {
@@ -478,6 +483,16 @@ static struct amd_code_and_bits_t decode_amd_codename_part1(const char *bs)
 		}
 	}
 
+	if ((i = match_pattern(bs, "C86 [357]")) != 0) {
+		bits |= C86_;
+		i--;
+		switch (bs[i + 6]) {
+			case '3': bits |= _3; break;
+			case '5': bits |= _5; break;
+			case '7': bits |= _7; break;
+		}
+	}
+
 	for (i = 0; i < COUNT_OF(code_matchtable); i++)
 		if (match_pattern(bs, code_matchtable[i].search)) {
 			code = code_matchtable[i].c;