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| author |   James Morris <james.l.morris@oracle.com> | 2015-11-23 22:46:28 +1100 |
|---|---|---|
| committer | James Morris <james.l.morris@oracle.com> | 2015-11-23 22:46:28 +1100 |
| commit | ebd68df3f24b318d391d15c458d6f43f340ba36a (patch) | |
| tree | f0277bc4b853abe5db1d30fa4e10b05bba7f2ac5 /drivers/usb/host/xhci-dbg.c | |
| parent | security/capability.h: cap_issubset/isclear can be boolean (diff) | |
| parent | Linux 4.4-rc2 (diff) | |
| download | linux-dev-ebd68df3f24b318d391d15c458d6f43f340ba36a.tar.xz linux-dev-ebd68df3f24b318d391d15c458d6f43f340ba36a.zip | |
Sync to Linus v4.4-rc2 for LSM developers.
Diffstat (limited to 'drivers/usb/host/xhci-dbg.c')
| -rw-r--r-- | drivers/usb/host/xhci-dbg.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 2d16faefb429..74c42f722678 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -58,16 +58,17 @@ void xhci_dbg_regs(struct xhci_hcd *xhci) static void xhci_print_cap_regs(struct xhci_hcd *xhci) { u32 temp; + u32 hci_version; xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs); temp = readl(&xhci->cap_regs->hc_capbase); + hci_version = HC_VERSION(temp); xhci_dbg(xhci, "CAPLENGTH AND HCIVERSION 0x%x:\n", (unsigned int) temp); xhci_dbg(xhci, "CAPLENGTH: 0x%x\n", (unsigned int) HC_LENGTH(temp)); - xhci_dbg(xhci, "HCIVERSION: 0x%x\n", - (unsigned int) HC_VERSION(temp)); + xhci_dbg(xhci, "HCIVERSION: 0x%x\n", hci_version); temp = readl(&xhci->cap_regs->hcs_params1); xhci_dbg(xhci, "HCSPARAMS 1: 0x%x\n", @@ -108,6 +109,18 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) temp = readl(&xhci->cap_regs->run_regs_off); xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK); + + /* xhci 1.1 controllers have the HCCPARAMS2 register */ + if (hci_version > 100) { + temp = readl(&xhci->cap_regs->hcc_params2); + xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp); + xhci_dbg(xhci, " HC %s Force save context capability", + HCC2_FSC(temp) ? "supports" : "doesn't support"); + xhci_dbg(xhci, " HC %s Large ESIT Payload Capability", + HCC2_LEC(temp) ? "supports" : "doesn't support"); + xhci_dbg(xhci, " HC %s Extended TBC capability", + HCC2_ETC(temp) ? "supports" : "doesn't support"); + } } static void xhci_print_command_reg(struct xhci_hcd *xhci) |