diff options
Diffstat (limited to 'ls-ecaps.c')
| -rw-r--r-- | ls-ecaps.c | 56 |
1 files changed, 55 insertions, 1 deletions
@@ -635,6 +635,57 @@ cap_rclink(struct device *d, int where) } static void +cap_cxl(struct device *d, int where) +{ + u16 l; + + printf("CXL Designated Vendor-Specific:\n"); + if (verbose < 2) + return; + + if (!config_fetch(d, where + PCI_CXL_CAP, 12)) + return; + + l = get_conf_word(d, where + PCI_CXL_CAP); + printf("\t\tCXLCap:\tCache%c IO%c Mem%c Mem HW Init%c HDMCount %d Viral%c\n", + FLAG(l, PCI_CXL_CAP_CACHE), FLAG(l, PCI_CXL_CAP_IO), FLAG(l, PCI_CXL_CAP_MEM), + FLAG(l, PCI_CXL_CAP_MEM_HWINIT), PCI_CXL_CAP_HDM_CNT(l), FLAG(l, PCI_CXL_CAP_VIRAL)); + + l = get_conf_word(d, where + PCI_CXL_CTRL); + printf("\t\tCXLCtl:\tCache%c IO%c Mem%c Cache SF Cov %d Cache SF Gran %d Cache Clean%c Viral%c\n", + FLAG(l, PCI_CXL_CTRL_CACHE), FLAG(l, PCI_CXL_CTRL_IO), FLAG(l, PCI_CXL_CTRL_MEM), + PCI_CXL_CTRL_CACHE_SF_COV(l), PCI_CXL_CTRL_CACHE_SF_GRAN(l), FLAG(l, PCI_CXL_CTRL_CACHE_CLN), + FLAG(l, PCI_CXL_CTRL_VIRAL)); + + l = get_conf_word(d, where + PCI_CXL_STATUS); + printf("\t\tCXLSta:\tViral%c\n", FLAG(l, PCI_CXL_STATUS_VIRAL)); +} + +static int +is_cxl_cap(struct device *d, int where) +{ + u32 hdr; + u16 w; + + if (!config_fetch(d, where + PCI_DVSEC_HEADER1, 8)) + return 0; + + /* Check for supported Vendor */ + hdr = get_conf_long(d, where + PCI_DVSEC_HEADER1); + w = BITS(hdr, 0, 16); + if (w != PCI_DVSEC_VENDOR_ID_CXL) + return 0; + + /* Check for Designated Vendor-Specific ID */ + hdr = get_conf_long(d, where + PCI_DVSEC_HEADER2); + w = BITS(hdr, 0, 16); + if (w == PCI_DVSEC_INTEL_CXL) + return 1; + + return 0; +} + +static void cap_dvsec(struct device *d, int where) { u32 hdr; @@ -947,7 +998,10 @@ show_ext_caps(struct device *d, int type) printf("Readiness Time Reporting <?>\n"); break; case PCI_EXT_CAP_ID_DVSEC: - cap_dvsec(d, where); + if (is_cxl_cap(d, where)) + cap_cxl(d, where); + else + cap_dvsec(d, where); break; case PCI_EXT_CAP_ID_VF_REBAR: printf("VF Resizable BAR <?>\n"); |