diff options
| -rw-r--r-- | tools/power/x86/intel-speed-select/isst-core-mbox.c | 222 | ||||
| -rw-r--r-- | tools/power/x86/intel-speed-select/isst-core.c | 160 |
2 files changed, 195 insertions, 187 deletions
diff --git a/tools/power/x86/intel-speed-select/isst-core-mbox.c b/tools/power/x86/intel-speed-select/isst-core-mbox.c index 8e224d154e04..6eafef925d1a 100644 --- a/tools/power/x86/intel-speed-select/isst-core-mbox.c +++ b/tools/power/x86/intel-speed-select/isst-core-mbox.c @@ -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, diff --git a/tools/power/x86/intel-speed-select/isst-core.c b/tools/power/x86/intel-speed-select/isst-core.c index 24b2c041bfe0..fcab70ef5704 100644 --- a/tools/power/x86/intel-speed-select/isst-core.c +++ b/tools/power/x86/intel-speed-select/isst-core.c @@ -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) { |