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>> >> +static ssize_t freq_vram_rp0_show(struct device *dev, struct >> device_attribute *attr, >> + char *buff) >> +{ >> + struct xe_guc_pc *pc = dev_to_pc(dev); >> + struct xe_gt *gt = pc_to_gt(pc); >> + u32 val; >> + int err; >> + >> + err = xe_pcode_read_p(gt, XEHP_PCODE_FREQUENCY_CONFIG, >> + PCODE_MBOX_FC_SC_READ_FUSED_P0, >> + PCODE_MBOX_DOMAIN_HBM, &val); >> + if (err) >> + return err; >> + >> + /* data_out - Fused P0 for domain ID in units of 50 MHz */ >> + val *= GT_FREQUENCY_MULTIPLIER; >> + >> + return sysfs_emit(buff, "%u\n", val); >> +} >> +static DEVICE_ATTR_RO(freq_vram_rp0); >> + >> +static ssize_t freq_vram_rpn_show(struct device *dev, struct >> device_attribute *attr, >> + char *buff) >> +{ >> + struct xe_guc_pc *pc = dev_to_pc(dev); >> + struct xe_gt *gt = pc_to_gt(pc); >> + u32 val; >> + int err; >> + >> + err = xe_pcode_read_p(gt, XEHP_PCODE_FREQUENCY_CONFIG, >> + PCODE_MBOX_FC_SC_READ_FUSED_PN, >> + PCODE_MBOX_DOMAIN_HBM, &val); >> + if (err) >> + return err; >> + >> + /* data_out - Fused P0 for domain ID in units of 50 MHz */ >> + val *= GT_FREQUENCY_MULTIPLIER; >> + >> + return sysfs_emit(buff, "%u\n", val); >> +} >> +static DEVICE_ATTR_RO(freq_vram_rpn); >> + >> +static const struct attribute *vram_freq_attrs[] = { >> + &dev_attr_freq_vram_rp0.attr, >> + &dev_attr_freq_vram_rpn.attr, >> + NULL >> +}; >> + >> /** >> * xe_guc_pc_c_status - get the current GT C state >> * @pc: XE_GuC_PC instance >> @@ -921,6 +970,12 @@ int xe_guc_pc_init(struct xe_guc_pc *pc) >> >> pc_init_fused_rp_values(pc); >> >> + if (IS_DGFX(xe) && xe->info.platform != XE_DG2) { > Add this attribute only for PVC ? Will fix the platform info for PVC alone. >> + err = sysfs_create_files(gt->sysfs, vram_freq_attrs); > vram attribute should be per tile instead of GT. > A tile can have multiple GT in theory, so associating vram attributes with GT is > theoretically wrong. > Cc: Matt Roper > Thanks, > Anshuman Gupta. Sure I will change it to tile->sysfs. Thanks, Suja >> + if (err) >> + return err; >> + } >> + >> err = sysfs_create_files(gt->sysfs, pc_attrs); >> if (err) >> return err; >> diff --git a/drivers/gpu/drm/xe/xe_pcode_api.h >> b/drivers/gpu/drm/xe/xe_pcode_api.h >> index 837ff7c71280..846c99aba3bc 100644 >> --- a/drivers/gpu/drm/xe/xe_pcode_api.h >> +++ b/drivers/gpu/drm/xe/xe_pcode_api.h >> @@ -25,6 +25,14 @@ >> #define PCODE_DATA0 XE_REG(0x138128) >> #define PCODE_DATA1 XE_REG(0x13812C) >> >> +#define XEHP_PCODE_FREQUENCY_CONFIG 0x6e /* xehp, pvc >> */ >> +/* XEHP_PCODE_FREQUENCY_CONFIG sub-commands (param1) */ >> +#define PCODE_MBOX_FC_SC_READ_FUSED_P0 0x0 >> +#define PCODE_MBOX_FC_SC_READ_FUSED_PN 0x1 >> +/* PCODE_MBOX_DOMAIN_* - mailbox domain IDs */ >> +/* XEHP_PCODE_FREQUENCY_CONFIG param2 */ >> +#define PCODE_MBOX_DOMAIN_HBM 0x2 >> + >> /* Min Freq QOS Table */ >> #define PCODE_WRITE_MIN_FREQ_TABLE 0x8 >> #define PCODE_READ_MIN_FREQ_TABLE 0x9 >> -- >> 2.25.1