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tools/power/x86/intel-speed-select: Allow api_version based platform callbacks 

Different api_version suggests different kernel driver used and
different interface is used to communication with the hardware.

Allow setting platform specific callbacks based on api_version.

Currently, all platforms with api_version 1 uses Mbox/MMIO interfaces.

No functional changes are expected.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
[srinivas.pandruvada@linux.intel.com: changelog edits]
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
This commit is contained in:
Zhang Rui 2022-08-20 20:40:48 +08:00 committed by Srinivas Pandruvada
parent 2b86ed225e
commit 05aab5b8c1
3 changed files with 15 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
tools/power/x86/intel-speed-select/isst-config.c
View File

@ -803,8 +803,10 @@ static int isst_fill_platform_info(void)
const char *pathname = "/dev/isst_interface";
int fd;
if (is_clx_n_platform())
if (is_clx_n_platform()) {
isst_platform_info.api_version = 1;
goto set_platform_ops;
}
fd = open(pathname, O_RDWR);
if (fd < 0)
@ -824,7 +826,7 @@ static int isst_fill_platform_info(void)
}
set_platform_ops:
if (isst_set_platform_ops()) {
if (isst_set_platform_ops(isst_platform_info.api_version)) {
fprintf(stderr, "Failed to set platform callbacks\n");
exit(0);
}

11
tools/power/x86/intel-speed-select/isst-core.c
View File

@ -16,9 +16,16 @@ static struct isst_platform_ops *isst_ops;
} \
} while (0)
int isst_set_platform_ops(void)
int isst_set_platform_ops(int api_version)
{
isst_ops = mbox_get_platform_ops();
switch (api_version) {
case 1:
isst_ops = mbox_get_platform_ops();
break;
default:
isst_ops = NULL;
break;
}
if (!isst_ops)
return -1;

8
tools/power/x86/intel-speed-select/isst.h
View File

@ -185,6 +185,7 @@ struct isst_platform_ops {
int (*get_disp_freq_multiplier)(void);
int (*get_trl_max_levels)(void);
char *(*get_trl_level_name)(int level);
void (*update_platform_param)(enum isst_platform_param param, int value);
int (*is_punit_valid)(struct isst_id *id);
int (*read_pm_config)(struct isst_id *id, int *cp_state, int *cp_cap);
int (*get_config_levels)(struct isst_id *id, struct isst_pkg_ctdp *pkg_ctdp);
@ -226,15 +227,10 @@ 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,
unsigned int req_data, unsigned int *resp);
extern int isst_send_msr_command(unsigned int cpu, unsigned int command,
int write, unsigned long long *req_resp);
extern int isst_set_platform_ops(void);
extern int isst_set_platform_ops(int api_version);
extern void isst_update_platform_param(enum isst_platform_param, int vale);
extern int isst_get_disp_freq_multiplier(void);
extern int isst_get_trl_max_levels(void);