tools/power/x86/intel-speed-select: Identify Emerald Rapids

There are some differences compared to Sapphire Rapids. So, add a separate
API.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

tools/power/x86/intel-speed-select/isst-config.c

@@ -114,12 +114,21 @@ int is_skx_based_platform(void)
 
 int is_spr_platform(void)
 {
-	if (cpu_model == 0x8F || cpu_model == 0xCF)
+	if (cpu_model == 0x8F)
 		return 1;
 
 	return 0;
 }
 
+int is_emr_platform(void)
+{
+	if (cpu_model == 0xCF)
+		return 1;
+
+	return 0;
+}
+
+
 int is_icx_platform(void)
 {
 	if (cpu_model == 0x6A || cpu_model == 0x6C)

tools/power/x86/intel-speed-select/isst-core-mbox.c

@@ -404,7 +404,7 @@ static void _get_uncore_mem_freq(struct isst_id *id, int config_index,
 	}
 
 	ctdp_level->mem_freq = resp & GENMASK(7, 0);
-	if (is_spr_platform()) {
+	if (is_spr_platform() || is_emr_platform()) {
 		ctdp_level->mem_freq *= 200;
 	} else if (is_icx_platform()) {
 		if (ctdp_level->mem_freq < 7) {

tools/power/x86/intel-speed-select/isst.h

@@ -298,6 +298,7 @@ extern int isst_read_pm_config(struct isst_id *id, int *cp_state, int *cp_cap);
 extern void isst_display_error_info_message(int error, char *msg, int arg_valid, int arg);
 extern int is_skx_based_platform(void);
 extern int is_spr_platform(void);
+extern int is_emr_platform(void);
 extern int is_icx_platform(void);
 extern void isst_trl_display_information(struct isst_id *id, FILE *outf, unsigned long long trl);