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Commit 2b86ed22 authored by Zhang Rui's avatar Zhang Rui Committed by Srinivas Pandruvada
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tools/power/x86/intel-speed-select: Move send_mbox_cmd to isst-core-mbox.c 

After the previous cleanup, there is no user of send_mbox_cmd outside of
isst-core-mbox.c.
Thus move send_mbox_cmd to isst-core-mbox.c as internal functions.

No functional changes are expected.
Signed-off-by: default avatarZhang Rui <rui.zhang@intel.com>
[srinivas.pandruvada@linux.intel.com: changelog edits]
Signed-off-by: default avatarSrinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
parent 73452ccc
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Showing with 195 additions and 187 deletions
tools/power/x86/intel-speed-select/isst-core-mbox.c
View file @ 2b86ed22
......@@ -5,6 +5,9 @@
*/
#include "isst.h"
static int mbox_delay;
static int mbox_retries = 3;
static int mbox_get_disp_freq_multiplier(void)
{
return DISP_FREQ_MULTIPLIER;
......@@ -29,6 +32,20 @@ static char *mbox_get_trl_level_name(int level)
}
}
static void mbox_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;
}
}
static int mbox_is_punit_valid(struct isst_id *id)
{
if (id->cpu < 0)
......@@ -40,12 +57,156 @@ static int mbox_is_punit_valid(struct isst_id *id)
return 1;
}
static int _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 _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 = _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 = _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;
}
static int mbox_read_pm_config(struct isst_id *id, int *cp_state, int *cp_cap)
{
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, READ_PM_CONFIG, PM_FEATURE, 0, 0,
ret = _send_mbox_command(id->cpu, READ_PM_CONFIG, PM_FEATURE, 0, 0,
&resp);
if (ret)
return ret;
......@@ -63,7 +224,7 @@ static int mbox_get_config_levels(struct isst_id *id, struct isst_pkg_ctdp *pkg_
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_LEVELS_INFO, 0, 0, &resp);
if (ret) {
pkg_dev->levels = 0;
......@@ -92,7 +253,7 @@ static int mbox_get_ctdp_control(struct isst_id *id, int config_index,
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_TDP_CONTROL, 0,
config_index, &resp);
if (ret)
......@@ -130,7 +291,7 @@ static void _get_uncore_p0_p1_info(struct isst_id *id, int config_index,
ctdp_level->uncore_p0 = 0;
ctdp_level->uncore_p1 = 0;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_RATIO_INFO, 0,
(BIT(16) | config_index) , &resp);
if (ret) {
......@@ -149,7 +310,7 @@ static void _get_uncore_p0_p1_info(struct isst_id *id, int config_index,
return;
try_uncore_mbox:
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_UNCORE_P0_P1_INFO, 0,
config_index, &resp);
if (ret) {
......@@ -210,7 +371,7 @@ static void _get_p1_info(struct isst_id *id, int config_index,
{
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_P1_INFO, 0,
ret = _send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_P1_INFO, 0,
config_index, &resp);
if (ret) {
ctdp_level->sse_p1 = 0;
......@@ -234,7 +395,7 @@ static void _get_uncore_mem_freq(struct isst_id *id, int config_index,
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_MEM_FREQ,
ret = _send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_MEM_FREQ,
0, config_index, &resp);
if (ret) {
ctdp_level->mem_freq = 0;
......@@ -267,7 +428,7 @@ static int mbox_get_tdp_info(struct isst_id *id, int config_index,
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_TDP_INFO,
ret = _send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_TDP_INFO,
0, config_index, &resp);
if (ret) {
isst_display_error_info_message(1, "Invalid level, Can't get TDP information at level", 1, config_index);
......@@ -282,7 +443,7 @@ static int mbox_get_tdp_info(struct isst_id *id, int config_index,
id->cpu, config_index, resp, ctdp_level->tdp_ratio,
ctdp_level->pkg_tdp);
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_TJMAX_INFO,
ret = _send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_TJMAX_INFO,
0, config_index, &resp);
if (ret)
return ret;
......@@ -306,7 +467,7 @@ static int mbox_get_pwr_info(struct isst_id *id, int config_index,
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_PWR_INFO,
ret = _send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_GET_PWR_INFO,
0, config_index, &resp);
if (ret)
return ret;
......@@ -333,7 +494,7 @@ static int mbox_get_coremask_info(struct isst_id *id, int config_index,
unsigned long long mask;
int cpu_count = 0;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_CORE_MASK, 0,
(i << 8) | config_index, &resp);
if (ret)
......@@ -362,7 +523,7 @@ static int mbox_get_get_trl(struct isst_id *id, int level, int avx_level, int *t
int ret;
req = level | (avx_level << 16);
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_TURBO_LIMIT_RATIOS, 0, req,
&resp);
if (ret)
......@@ -378,7 +539,7 @@ static int mbox_get_get_trl(struct isst_id *id, int level, int avx_level, int *t
trl[3] = (resp & GENMASK(31, 24)) >> 24;
req = level | BIT(8) | (avx_level << 16);
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_TURBO_LIMIT_RATIOS, 0, req,
&resp);
if (ret)
......@@ -438,7 +599,7 @@ static int mbox_set_tdp_level(struct isst_id *id, int tdp_level)
}
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_SET_LEVEL, 0,
ret = _send_mbox_command(id->cpu, CONFIG_TDP, CONFIG_TDP_SET_LEVEL, 0,
tdp_level, &resp);
if (ret) {
isst_display_error_info_message(1, "Set TDP level failed for level", 1, tdp_level);
......@@ -461,7 +622,7 @@ static int mbox_get_pbf_info(struct isst_id *id, int level, struct isst_pbf_info
unsigned long long mask;
int count;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_PBF_GET_CORE_MASK_INFO,
0, (i << 8) | level, &resp);
if (ret)
......@@ -479,7 +640,7 @@ static int mbox_get_pbf_info(struct isst_id *id, int level, struct isst_pbf_info
}
req = level;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_PBF_GET_P1HI_P1LO_INFO, 0, req,
&resp);
if (ret)
......@@ -492,7 +653,7 @@ static int mbox_get_pbf_info(struct isst_id *id, int level, struct isst_pbf_info
pbf_info->p1_high = (resp & GENMASK(15, 8)) >> 8;
req = level;
ret = isst_send_mbox_command(
ret = _send_mbox_command(
id->cpu, CONFIG_TDP, CONFIG_TDP_PBF_GET_TDP_INFO, 0, req, &resp);
if (ret)
return ret;
......@@ -502,7 +663,7 @@ static int mbox_get_pbf_info(struct isst_id *id, int level, struct isst_pbf_info
pbf_info->tdp = resp & 0xffff;
req = level;
ret = isst_send_mbox_command(
ret = _send_mbox_command(
id->cpu, CONFIG_TDP, CONFIG_TDP_PBF_GET_TJ_MAX_INFO, 0, req, &resp);
if (ret)
return ret;
......@@ -555,7 +716,7 @@ static int mbox_set_pbf_fact_status(struct isst_id *id, int pbf, int enable)
req &= ~BIT(16);
}
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_SET_TDP_CONTROL, 0, req, &resp);
if (ret)
return ret;
......@@ -575,7 +736,7 @@ static int _get_fact_bucket_info(struct isst_id *id, int level,
for (i = 0; i < 2; ++i) {
int j;
ret = isst_send_mbox_command(
ret = _send_mbox_command(
id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_FACT_HP_TURBO_LIMIT_NUMCORES, 0,
(i << 8) | level, &resp);
......@@ -596,7 +757,7 @@ static int _get_fact_bucket_info(struct isst_id *id, int level,
for (i = 0; i < 2; ++i) {
int j;
ret = isst_send_mbox_command(
ret = _send_mbox_command(
id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_FACT_HP_TURBO_LIMIT_RATIOS, 0,
(k << 16) | (i << 8) | level, &resp);
......@@ -622,7 +783,7 @@ static int mbox_get_fact_info(struct isst_id *id, int level, int fact_bucket, st
unsigned int resp;
int j, ret, print;
ret = isst_send_mbox_command(id->cpu, CONFIG_TDP,
ret = _send_mbox_command(id->cpu, CONFIG_TDP,
CONFIG_TDP_GET_FACT_LP_CLIPPING_RATIO, 0,
level, &resp);
if (ret)
......@@ -662,7 +823,7 @@ static int mbox_get_clos_information(struct isst_id *id, int *enable, int *type)
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,
&resp);
if (ret)
return ret;
......@@ -692,7 +853,7 @@ static int _write_pm_config(struct isst_id *id, int cp_state)
else
req = 0;
ret = isst_send_mbox_command(id->cpu, WRITE_PM_CONFIG, PM_FEATURE, 0, req,
ret = _send_mbox_command(id->cpu, WRITE_PM_CONFIG, PM_FEATURE, 0, req,
&resp);
if (ret)
return ret;
......@@ -735,7 +896,7 @@ static int mbox_pm_qos_config(struct isst_id *id, int enable_clos, int priority_
isst_display_error_info_message(0, "WRITE_PM_CONFIG command failed, ignoring error", 0, 0);
}
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG, 0, 0,
&resp);
if (ret) {
isst_display_error_info_message(1, "CLOS_PM_QOS_CONFIG command failed", 0, 0);
......@@ -759,7 +920,7 @@ static int mbox_pm_qos_config(struct isst_id *id, int enable_clos, int priority_
else
req = req & ~BIT(2);
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_QOS_CONFIG,
BIT(MBOX_CMD_WRITE_BIT), req, &resp);
if (ret)
return ret;
......@@ -775,7 +936,7 @@ static int mbox_pm_get_clos(struct isst_id *id, int clos, struct isst_clos_confi
unsigned int resp;
int ret;
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_CLOS, clos, 0,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_CLOS, clos, 0,
&resp);
if (ret)
return ret;
......@@ -803,7 +964,7 @@ static int mbox_set_clos(struct isst_id *id, int clos, struct isst_clos_config *
param = BIT(MBOX_CMD_WRITE_BIT) | clos;
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_CLOS, param, req,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PM_CLOS, param, req,
&resp);
if (ret)
return ret;
......@@ -822,7 +983,7 @@ static int mbox_clos_get_assoc_status(struct isst_id *id, int *clos_id)
core_id = find_phy_core_num(id->cpu);
param = core_id;
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PQR_ASSOC, param, 0,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PQR_ASSOC, param, 0,
&resp);
if (ret)
return ret;
......@@ -844,7 +1005,7 @@ static int mbox_clos_associate(struct isst_id *id, int clos_id)
core_id = find_phy_core_num(id->cpu);
param = BIT(MBOX_CMD_WRITE_BIT) | core_id;
ret = isst_send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PQR_ASSOC, param,
ret = _send_mbox_command(id->cpu, CONFIG_CLOS, CLOS_PQR_ASSOC, param,
req, &resp);
if (ret)
return ret;
......@@ -859,6 +1020,7 @@ static struct isst_platform_ops mbox_ops = {
.get_disp_freq_multiplier = mbox_get_disp_freq_multiplier,
.get_trl_max_levels = mbox_get_trl_max_levels,
.get_trl_level_name = mbox_get_trl_level_name,
.update_platform_param = mbox_update_platform_param,
.is_punit_valid = mbox_is_punit_valid,
.read_pm_config = mbox_read_pm_config,
.get_config_levels = mbox_get_config_levels,
......
tools/power/x86/intel-speed-select/isst-core.c
View file @ 2b86ed22
......@@ -6,9 +6,6 @@
#include "isst.h"
static int mbox_delay;
static int mbox_retries = 3;
static struct isst_platform_ops *isst_ops;
#define CHECK_CB(_name) \
......@@ -30,16 +27,9 @@ int isst_set_platform_ops(void)
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;
}
CHECK_CB(update_platform_param);
isst_ops->update_platform_param(param, value);
}
int isst_get_disp_freq_multiplier(void)
......@@ -66,150 +56,6 @@ int isst_is_punit_valid(struct isst_id *id)
return isst_ops->is_punit_valid(id);
}
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)
{
......
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