tools/power/x86/intel-speed-select: Move mbox functions to isst-core.c

isst-config.c should only contain generic code.
Move mbox functions which are platform specific code to isst-core.c.

As there are some platform specific parameters set via generic
application options, introduce isst_update_platform_param to pass these
parameters to platform specific code.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

3 files changed, 209 insertions, 181 deletions

diff --git a/tools/power/x86/intel-speed-select/isst-config.c b/tools/power/x86/intel-speed-select/isst-config.c
index ef604c46cda7..f2da55ea7364 100644
--- a/tools/power/x86/intel-speed-select/isst-config.c
+++ b/tools/power/x86/intel-speed-select/isst-config.c
@@ -45,9 +45,6 @@ static int force_online_offline;
 static int auto_mode;
 static int fact_enable_fail;
 
-static int mbox_delay;
-static int mbox_retries = 3;
-
 /* clos related */
 static int current_clos = -1;
 static int clos_epp = -1;
@@ -799,184 +796,7 @@ int find_phy_core_num(int logical_cpu)
 	return -EINVAL;
 }
 
-static int isst_send_mmio_command(unsigned int cpu, unsigned int reg, int write,
-				  unsigned int *value)
-{
-	struct isst_if_io_regs io_regs;
-	const char *pathname = "/dev/isst_interface";
-	int cmd;
-	int fd;
-
-	debug_printf("mmio_cmd cpu:%d reg:%d write:%d\n", cpu, reg, write);
-
-	fd = open(pathname, O_RDWR);
-	if (fd < 0)
-		err(-1, "%s open failed", pathname);
-
-	io_regs.req_count = 1;
-	io_regs.io_reg[0].logical_cpu = cpu;
-	io_regs.io_reg[0].reg = reg;
-	cmd = ISST_IF_IO_CMD;
-	if (write) {
-		io_regs.io_reg[0].read_write = 1;
-		io_regs.io_reg[0].value = *value;
-	} else {
-		io_regs.io_reg[0].read_write = 0;
-	}
-
-	if (ioctl(fd, cmd, &io_regs) == -1) {
-		if (errno == ENOTTY) {
-			perror("ISST_IF_IO_COMMAND\n");
-			fprintf(stderr, "Check presence of kernel modules: isst_if_mmio\n");
-			exit(0);
-		}
-		fprintf(outf, "Error: mmio_cmd cpu:%d reg:%x read_write:%x\n",
-			cpu, reg, write);
-	} else {
-		if (!write)
-			*value = io_regs.io_reg[0].value;
-
-		debug_printf(
-			"mmio_cmd response: cpu:%d reg:%x rd_write:%x resp:%x\n",
-			cpu, reg, write, *value);
-	}
-
-	close(fd);
-
-	return 0;
-}
-
-int isst_send_mbox_command(unsigned int cpu, unsigned char command,
-			   unsigned char sub_command, unsigned int parameter,
-			   unsigned int req_data, unsigned int *resp)
-{
-	const char *pathname = "/dev/isst_interface";
-	int fd, retry;
-	struct isst_if_mbox_cmds mbox_cmds = { 0 };
-
-	debug_printf(
-		"mbox_send: cpu:%d command:%x sub_command:%x parameter:%x req_data:%x\n",
-		cpu, command, sub_command, parameter, req_data);
-
-	if (!is_skx_based_platform() && command == CONFIG_CLOS &&
-	    sub_command != CLOS_PM_QOS_CONFIG) {
-		unsigned int value;
-		int write = 0;
-		int clos_id, core_id, ret = 0;
-
-		debug_printf("CPU %d\n", cpu);
-
-		if (parameter & BIT(MBOX_CMD_WRITE_BIT)) {
-			value = req_data;
-			write = 1;
-		}
-
-		switch (sub_command) {
-		case CLOS_PQR_ASSOC:
-			core_id = parameter & 0xff;
-			ret = isst_send_mmio_command(
-				cpu, PQR_ASSOC_OFFSET + core_id * 4, write,
-				&value);
-			if (!ret && !write)
-				*resp = value;
-			break;
-		case CLOS_PM_CLOS:
-			clos_id = parameter & 0x03;
-			ret = isst_send_mmio_command(
-				cpu, PM_CLOS_OFFSET + clos_id * 4, write,
-				&value);
-			if (!ret && !write)
-				*resp = value;
-			break;
-		case CLOS_STATUS:
-			break;
-		default:
-			break;
-		}
-		return ret;
-	}
 
-	mbox_cmds.cmd_count = 1;
-	mbox_cmds.mbox_cmd[0].logical_cpu = cpu;
-	mbox_cmds.mbox_cmd[0].command = command;
-	mbox_cmds.mbox_cmd[0].sub_command = sub_command;
-	mbox_cmds.mbox_cmd[0].parameter = parameter;
-	mbox_cmds.mbox_cmd[0].req_data = req_data;
-
-	if (mbox_delay)
-		usleep(mbox_delay * 1000);
-
-	fd = open(pathname, O_RDWR);
-	if (fd < 0)
-		err(-1, "%s open failed", pathname);
-
-	retry = mbox_retries;
-
-	do {
-		if (ioctl(fd, ISST_IF_MBOX_COMMAND, &mbox_cmds) == -1) {
-			if (errno == ENOTTY) {
-				perror("ISST_IF_MBOX_COMMAND\n");
-				fprintf(stderr, "Check presence of kernel modules: isst_if_mbox_pci or isst_if_mbox_msr\n");
-				exit(0);
-			}
-			debug_printf(
-				"Error: mbox_cmd cpu:%d command:%x sub_command:%x parameter:%x req_data:%x errorno:%d\n",
-				cpu, command, sub_command, parameter, req_data, errno);
-			--retry;
-		} else {
-			*resp = mbox_cmds.mbox_cmd[0].resp_data;
-			debug_printf(
-				"mbox_cmd response: cpu:%d command:%x sub_command:%x parameter:%x req_data:%x resp:%x\n",
-				cpu, command, sub_command, parameter, req_data, *resp);
-			break;
-		}
-	} while (retry);
-
-	close(fd);
-
-	if (!retry) {
-		debug_printf("Failed mbox command even after retries\n");
-		return -1;
-
-	}
-	return 0;
-}
-
-int isst_send_msr_command(unsigned int cpu, unsigned int msr, int write,
-			  unsigned long long *req_resp)
-{
-	struct isst_if_msr_cmds msr_cmds;
-	const char *pathname = "/dev/isst_interface";
-	int fd;
-
-	fd = open(pathname, O_RDWR);
-	if (fd < 0)
-		err(-1, "%s open failed", pathname);
-
-	msr_cmds.cmd_count = 1;
-	msr_cmds.msr_cmd[0].logical_cpu = cpu;
-	msr_cmds.msr_cmd[0].msr = msr;
-	msr_cmds.msr_cmd[0].read_write = write;
-	if (write)
-		msr_cmds.msr_cmd[0].data = *req_resp;
-
-	if (ioctl(fd, ISST_IF_MSR_COMMAND, &msr_cmds) == -1) {
-		perror("ISST_IF_MSR_COMMAND");
-		fprintf(outf, "Error: msr_cmd cpu:%d msr:%x read_write:%d\n",
-			cpu, msr, write);
-	} else {
-		if (!write)
-			*req_resp = msr_cmds.msr_cmd[0].data;
-
-		debug_printf(
-			"msr_cmd response: cpu:%d msr:%x rd_write:%x resp:%llx %llx\n",
-			cpu, msr, write, *req_resp, msr_cmds.msr_cmd[0].data);
-	}
-
-	close(fd);
-
-	return 0;
-}
 
 static int isst_fill_platform_info(void)
 {
@@ -2971,6 +2791,7 @@ static void cmdline(int argc, char **argv)
 	int oob_mode = 0;
 	int poll_interval = -1;
 	int no_daemon = 0;
+	int mbox_delay = 0, mbox_retries = 3;
 
 	static struct option long_options[] = {
 		{ "all-cpus-online", no_argument, 0, 'a' },
@@ -3080,6 +2901,10 @@ static void cmdline(int argc, char **argv)
 		usage();
 		exit(0);
 	}
+
+	isst_update_platform_param(ISST_PARAM_MBOX_DELAY, mbox_delay);
+	isst_update_platform_param(ISST_PARAM_MBOX_RETRIES, mbox_retries);
+
 	set_max_cpu_num();
 	if (force_cpus_online)
 		force_all_cpus_online();
diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c
index f712da2b5146..385bc6c05545 100644
--- a/tools/power/x86/intel-speed-select/isst-core.c
+++ b/tools/power/x86/intel-speed-select/isst-core.c
@@ -6,6 +6,23 @@
 
 #include "isst.h"
 
+static int mbox_delay;
+static int mbox_retries = 3;
+
+void isst_update_platform_param(enum isst_platform_param param, int value)
+{
+	switch (param) {
+	case ISST_PARAM_MBOX_DELAY:
+		mbox_delay = value;
+		break;
+	case ISST_PARAM_MBOX_RETRIES:
+		mbox_retries = value;
+		break;
+	default:
+		break;
+	}
+}
+
 int isst_get_trl_max_levels(void)
 {
 	return 3;
@@ -36,6 +53,187 @@ int isst_is_punit_valid(struct isst_id *id)
 	return 1;
 }
 
+static int isst_send_mmio_command(unsigned int cpu, unsigned int reg, int write,
+				  unsigned int *value)
+{
+	struct isst_if_io_regs io_regs;
+	const char *pathname = "/dev/isst_interface";
+	int cmd;
+	FILE *outf = get_output_file();
+	int fd;
+
+	debug_printf("mmio_cmd cpu:%d reg:%d write:%d\n", cpu, reg, write);
+
+	fd = open(pathname, O_RDWR);
+	if (fd < 0)
+		err(-1, "%s open failed", pathname);
+
+	io_regs.req_count = 1;
+	io_regs.io_reg[0].logical_cpu = cpu;
+	io_regs.io_reg[0].reg = reg;
+	cmd = ISST_IF_IO_CMD;
+	if (write) {
+		io_regs.io_reg[0].read_write = 1;
+		io_regs.io_reg[0].value = *value;
+	} else {
+		io_regs.io_reg[0].read_write = 0;
+	}
+
+	if (ioctl(fd, cmd, &io_regs) == -1) {
+		if (errno == ENOTTY) {
+			perror("ISST_IF_IO_COMMAND\n");
+			fprintf(stderr, "Check presence of kernel modules: isst_if_mmio\n");
+			exit(0);
+		}
+		fprintf(outf, "Error: mmio_cmd cpu:%d reg:%x read_write:%x\n",
+			cpu, reg, write);
+	} else {
+		if (!write)
+			*value = io_regs.io_reg[0].value;
+
+		debug_printf(
+			"mmio_cmd response: cpu:%d reg:%x rd_write:%x resp:%x\n",
+			cpu, reg, write, *value);
+	}
+
+	close(fd);
+
+	return 0;
+}
+
+int isst_send_mbox_command(unsigned int cpu, unsigned char command,
+			   unsigned char sub_command, unsigned int parameter,
+			   unsigned int req_data, unsigned int *resp)
+{
+	const char *pathname = "/dev/isst_interface";
+	int fd, retry;
+	struct isst_if_mbox_cmds mbox_cmds = { 0 };
+
+	debug_printf(
+		"mbox_send: cpu:%d command:%x sub_command:%x parameter:%x req_data:%x\n",
+		cpu, command, sub_command, parameter, req_data);
+
+	if (!is_skx_based_platform() && command == CONFIG_CLOS &&
+	    sub_command != CLOS_PM_QOS_CONFIG) {
+		unsigned int value;
+		int write = 0;
+		int clos_id, core_id, ret = 0;
+
+		debug_printf("CPU %d\n", cpu);
+
+		if (parameter & BIT(MBOX_CMD_WRITE_BIT)) {
+			value = req_data;
+			write = 1;
+		}
+
+		switch (sub_command) {
+		case CLOS_PQR_ASSOC:
+			core_id = parameter & 0xff;
+			ret = isst_send_mmio_command(
+				cpu, PQR_ASSOC_OFFSET + core_id * 4, write,
+				&value);
+			if (!ret && !write)
+				*resp = value;
+			break;
+		case CLOS_PM_CLOS:
+			clos_id = parameter & 0x03;
+			ret = isst_send_mmio_command(
+				cpu, PM_CLOS_OFFSET + clos_id * 4, write,
+				&value);
+			if (!ret && !write)
+				*resp = value;
+			break;
+		case CLOS_STATUS:
+			break;
+		default:
+			break;
+		}
+		return ret;
+	}
+
+	mbox_cmds.cmd_count = 1;
+	mbox_cmds.mbox_cmd[0].logical_cpu = cpu;
+	mbox_cmds.mbox_cmd[0].command = command;
+	mbox_cmds.mbox_cmd[0].sub_command = sub_command;
+	mbox_cmds.mbox_cmd[0].parameter = parameter;
+	mbox_cmds.mbox_cmd[0].req_data = req_data;
+
+	if (mbox_delay)
+		usleep(mbox_delay * 1000);
+
+	fd = open(pathname, O_RDWR);
+	if (fd < 0)
+		err(-1, "%s open failed", pathname);
+
+	retry = mbox_retries;
+
+	do {
+		if (ioctl(fd, ISST_IF_MBOX_COMMAND, &mbox_cmds) == -1) {
+			if (errno == ENOTTY) {
+				perror("ISST_IF_MBOX_COMMAND\n");
+				fprintf(stderr, "Check presence of kernel modules: isst_if_mbox_pci or isst_if_mbox_msr\n");
+				exit(0);
+			}
+			debug_printf(
+				"Error: mbox_cmd cpu:%d command:%x sub_command:%x parameter:%x req_data:%x errorno:%d\n",
+				cpu, command, sub_command, parameter, req_data, errno);
+			--retry;
+		} else {
+			*resp = mbox_cmds.mbox_cmd[0].resp_data;
+			debug_printf(
+				"mbox_cmd response: cpu:%d command:%x sub_command:%x parameter:%x req_data:%x resp:%x\n",
+				cpu, command, sub_command, parameter, req_data, *resp);
+			break;
+		}
+	} while (retry);
+
+	close(fd);
+
+	if (!retry) {
+		debug_printf("Failed mbox command even after retries\n");
+		return -1;
+
+	}
+	return 0;
+}
+
+int isst_send_msr_command(unsigned int cpu, unsigned int msr, int write,
+			  unsigned long long *req_resp)
+{
+	struct isst_if_msr_cmds msr_cmds;
+	const char *pathname = "/dev/isst_interface";
+	FILE *outf = get_output_file();
+	int fd;
+
+	fd = open(pathname, O_RDWR);
+	if (fd < 0)
+		err(-1, "%s open failed", pathname);
+
+	msr_cmds.cmd_count = 1;
+	msr_cmds.msr_cmd[0].logical_cpu = cpu;
+	msr_cmds.msr_cmd[0].msr = msr;
+	msr_cmds.msr_cmd[0].read_write = write;
+	if (write)
+		msr_cmds.msr_cmd[0].data = *req_resp;
+
+	if (ioctl(fd, ISST_IF_MSR_COMMAND, &msr_cmds) == -1) {
+		perror("ISST_IF_MSR_COMMAND");
+		fprintf(outf, "Error: msr_cmd cpu:%d msr:%x read_write:%d\n",
+			cpu, msr, write);
+	} else {
+		if (!write)
+			*req_resp = msr_cmds.msr_cmd[0].data;
+
+		debug_printf(
+			"msr_cmd response: cpu:%d msr:%x rd_write:%x resp:%llx %llx\n",
+			cpu, msr, write, *req_resp, msr_cmds.msr_cmd[0].data);
+	}
+
+	close(fd);
+
+	return 0;
+}
+
 int isst_write_pm_config(struct isst_id *id, int cp_state)
 {
 	unsigned int req, resp;
diff --git a/tools/power/x86/intel-speed-select/isst.h b/tools/power/x86/intel-speed-select/isst.h
index c43a73751007..6f60fcf409ee 100644
--- a/tools/power/x86/intel-speed-select/isst.h
+++ b/tools/power/x86/intel-speed-select/isst.h
@@ -176,6 +176,11 @@ struct isst_pkg_ctdp {
 	struct isst_pkg_ctdp_level_info ctdp_level[ISST_MAX_TDP_LEVELS];
 };
 
+enum isst_platform_param {
+	ISST_PARAM_MBOX_DELAY,
+	ISST_PARAM_MBOX_RETRIES,
+};
+
 extern int is_cpu_in_power_domain(int cpu, struct isst_id *id);
 extern int get_topo_max_cpus(void);
 extern int get_cpu_count(struct isst_id *id);
@@ -194,7 +199,6 @@ extern void set_cpu_mask_from_punit_coremask(struct isst_id *id,
 					     size_t core_cpumask_size,
 					     cpu_set_t *core_cpumask,
 					     int *cpu_cnt);
-
 extern int isst_send_mbox_command(unsigned int cpu, unsigned char command,
 				  unsigned char sub_command,
 				  unsigned int write,
@@ -203,6 +207,7 @@ extern int isst_send_mbox_command(unsigned int cpu, unsigned char command,
 extern int isst_send_msr_command(unsigned int cpu, unsigned int command,
 				 int write, unsigned long long *req_resp);
 
+extern void isst_update_platform_param(enum isst_platform_param, int vale);
 extern int isst_get_trl_max_levels(void);
 extern char *isst_get_trl_level_name(int level);
 extern int isst_is_punit_valid(struct isst_id *id);