8c10152ec5
Every XHCI TRB has already been traced by the trb trace events. It is unnecessary to put the same message in kernel log. This patch removes xhci_debug_trb(). Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
452 lines
13 KiB
C
452 lines
13 KiB
C
/*
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* xHCI host controller driver
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*
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* Copyright (C) 2008 Intel Corp.
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*
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* Author: Sarah Sharp
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* Some code borrowed from the Linux EHCI driver.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "xhci.h"
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#define XHCI_INIT_VALUE 0x0
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/* Add verbose debugging later, just print everything for now */
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void xhci_dbg_regs(struct xhci_hcd *xhci)
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{
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u32 temp;
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xhci_dbg(xhci, "// xHCI capability registers at %p:\n",
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xhci->cap_regs);
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temp = readl(&xhci->cap_regs->hc_capbase);
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xhci_dbg(xhci, "// @%p = 0x%x (CAPLENGTH AND HCIVERSION)\n",
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&xhci->cap_regs->hc_capbase, temp);
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xhci_dbg(xhci, "// CAPLENGTH: 0x%x\n",
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(unsigned int) HC_LENGTH(temp));
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xhci_dbg(xhci, "// HCIVERSION: 0x%x\n",
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(unsigned int) HC_VERSION(temp));
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xhci_dbg(xhci, "// xHCI operational registers at %p:\n", xhci->op_regs);
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temp = readl(&xhci->cap_regs->run_regs_off);
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xhci_dbg(xhci, "// @%p = 0x%x RTSOFF\n",
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&xhci->cap_regs->run_regs_off,
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(unsigned int) temp & RTSOFF_MASK);
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xhci_dbg(xhci, "// xHCI runtime registers at %p:\n", xhci->run_regs);
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temp = readl(&xhci->cap_regs->db_off);
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xhci_dbg(xhci, "// @%p = 0x%x DBOFF\n", &xhci->cap_regs->db_off, temp);
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xhci_dbg(xhci, "// Doorbell array at %p:\n", xhci->dba);
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}
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static void xhci_print_cap_regs(struct xhci_hcd *xhci)
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{
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u32 temp;
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u32 hci_version;
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xhci_dbg(xhci, "xHCI capability registers at %p:\n", xhci->cap_regs);
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temp = readl(&xhci->cap_regs->hc_capbase);
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hci_version = HC_VERSION(temp);
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xhci_dbg(xhci, "CAPLENGTH AND HCIVERSION 0x%x:\n",
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(unsigned int) temp);
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xhci_dbg(xhci, "CAPLENGTH: 0x%x\n",
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(unsigned int) HC_LENGTH(temp));
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xhci_dbg(xhci, "HCIVERSION: 0x%x\n", hci_version);
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temp = readl(&xhci->cap_regs->hcs_params1);
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xhci_dbg(xhci, "HCSPARAMS 1: 0x%x\n",
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(unsigned int) temp);
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xhci_dbg(xhci, " Max device slots: %u\n",
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(unsigned int) HCS_MAX_SLOTS(temp));
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xhci_dbg(xhci, " Max interrupters: %u\n",
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(unsigned int) HCS_MAX_INTRS(temp));
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xhci_dbg(xhci, " Max ports: %u\n",
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(unsigned int) HCS_MAX_PORTS(temp));
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temp = readl(&xhci->cap_regs->hcs_params2);
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xhci_dbg(xhci, "HCSPARAMS 2: 0x%x\n",
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(unsigned int) temp);
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xhci_dbg(xhci, " Isoc scheduling threshold: %u\n",
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(unsigned int) HCS_IST(temp));
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xhci_dbg(xhci, " Maximum allowed segments in event ring: %u\n",
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(unsigned int) HCS_ERST_MAX(temp));
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temp = readl(&xhci->cap_regs->hcs_params3);
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xhci_dbg(xhci, "HCSPARAMS 3 0x%x:\n",
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(unsigned int) temp);
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xhci_dbg(xhci, " Worst case U1 device exit latency: %u\n",
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(unsigned int) HCS_U1_LATENCY(temp));
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xhci_dbg(xhci, " Worst case U2 device exit latency: %u\n",
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(unsigned int) HCS_U2_LATENCY(temp));
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temp = readl(&xhci->cap_regs->hcc_params);
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xhci_dbg(xhci, "HCC PARAMS 0x%x:\n", (unsigned int) temp);
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xhci_dbg(xhci, " HC generates %s bit addresses\n",
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HCC_64BIT_ADDR(temp) ? "64" : "32");
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xhci_dbg(xhci, " HC %s Contiguous Frame ID Capability\n",
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HCC_CFC(temp) ? "has" : "hasn't");
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xhci_dbg(xhci, " HC %s generate Stopped - Short Package event\n",
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HCC_SPC(temp) ? "can" : "can't");
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/* FIXME */
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xhci_dbg(xhci, " FIXME: more HCCPARAMS debugging\n");
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temp = readl(&xhci->cap_regs->run_regs_off);
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xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK);
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/* xhci 1.1 controllers have the HCCPARAMS2 register */
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if (hci_version > 0x100) {
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temp = readl(&xhci->cap_regs->hcc_params2);
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xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp);
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xhci_dbg(xhci, " HC %s Force save context capability",
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HCC2_FSC(temp) ? "supports" : "doesn't support");
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xhci_dbg(xhci, " HC %s Large ESIT Payload Capability",
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HCC2_LEC(temp) ? "supports" : "doesn't support");
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xhci_dbg(xhci, " HC %s Extended TBC capability",
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HCC2_ETC(temp) ? "supports" : "doesn't support");
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}
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}
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static void xhci_print_command_reg(struct xhci_hcd *xhci)
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{
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u32 temp;
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temp = readl(&xhci->op_regs->command);
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xhci_dbg(xhci, "USBCMD 0x%x:\n", temp);
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xhci_dbg(xhci, " HC is %s\n",
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(temp & CMD_RUN) ? "running" : "being stopped");
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xhci_dbg(xhci, " HC has %sfinished hard reset\n",
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(temp & CMD_RESET) ? "not " : "");
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xhci_dbg(xhci, " Event Interrupts %s\n",
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(temp & CMD_EIE) ? "enabled " : "disabled");
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xhci_dbg(xhci, " Host System Error Interrupts %s\n",
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(temp & CMD_HSEIE) ? "enabled " : "disabled");
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xhci_dbg(xhci, " HC has %sfinished light reset\n",
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(temp & CMD_LRESET) ? "not " : "");
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}
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static void xhci_print_status(struct xhci_hcd *xhci)
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{
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u32 temp;
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temp = readl(&xhci->op_regs->status);
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xhci_dbg(xhci, "USBSTS 0x%x:\n", temp);
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xhci_dbg(xhci, " Event ring is %sempty\n",
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(temp & STS_EINT) ? "not " : "");
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xhci_dbg(xhci, " %sHost System Error\n",
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(temp & STS_FATAL) ? "WARNING: " : "No ");
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xhci_dbg(xhci, " HC is %s\n",
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(temp & STS_HALT) ? "halted" : "running");
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}
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static void xhci_print_op_regs(struct xhci_hcd *xhci)
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{
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xhci_dbg(xhci, "xHCI operational registers at %p:\n", xhci->op_regs);
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xhci_print_command_reg(xhci);
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xhci_print_status(xhci);
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}
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static void xhci_print_ports(struct xhci_hcd *xhci)
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{
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__le32 __iomem *addr;
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int i, j;
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int ports;
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char *names[NUM_PORT_REGS] = {
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"status",
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"power",
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"link",
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"reserved",
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};
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ports = HCS_MAX_PORTS(xhci->hcs_params1);
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addr = &xhci->op_regs->port_status_base;
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for (i = 0; i < ports; i++) {
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for (j = 0; j < NUM_PORT_REGS; j++) {
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xhci_dbg(xhci, "%p port %s reg = 0x%x\n",
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addr, names[j],
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(unsigned int) readl(addr));
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addr++;
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}
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}
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}
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void xhci_print_ir_set(struct xhci_hcd *xhci, int set_num)
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{
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struct xhci_intr_reg __iomem *ir_set = &xhci->run_regs->ir_set[set_num];
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void __iomem *addr;
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u32 temp;
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u64 temp_64;
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addr = &ir_set->irq_pending;
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temp = readl(addr);
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if (temp == XHCI_INIT_VALUE)
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return;
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xhci_dbg(xhci, " %p: ir_set[%i]\n", ir_set, set_num);
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xhci_dbg(xhci, " %p: ir_set.pending = 0x%x\n", addr,
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(unsigned int)temp);
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addr = &ir_set->irq_control;
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temp = readl(addr);
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xhci_dbg(xhci, " %p: ir_set.control = 0x%x\n", addr,
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(unsigned int)temp);
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addr = &ir_set->erst_size;
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temp = readl(addr);
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xhci_dbg(xhci, " %p: ir_set.erst_size = 0x%x\n", addr,
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(unsigned int)temp);
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addr = &ir_set->rsvd;
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temp = readl(addr);
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if (temp != XHCI_INIT_VALUE)
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xhci_dbg(xhci, " WARN: %p: ir_set.rsvd = 0x%x\n",
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addr, (unsigned int)temp);
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addr = &ir_set->erst_base;
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temp_64 = xhci_read_64(xhci, addr);
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xhci_dbg(xhci, " %p: ir_set.erst_base = @%08llx\n",
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addr, temp_64);
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addr = &ir_set->erst_dequeue;
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temp_64 = xhci_read_64(xhci, addr);
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xhci_dbg(xhci, " %p: ir_set.erst_dequeue = @%08llx\n",
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addr, temp_64);
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}
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void xhci_print_run_regs(struct xhci_hcd *xhci)
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{
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u32 temp;
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int i;
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xhci_dbg(xhci, "xHCI runtime registers at %p:\n", xhci->run_regs);
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temp = readl(&xhci->run_regs->microframe_index);
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xhci_dbg(xhci, " %p: Microframe index = 0x%x\n",
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&xhci->run_regs->microframe_index,
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(unsigned int) temp);
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for (i = 0; i < 7; i++) {
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temp = readl(&xhci->run_regs->rsvd[i]);
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if (temp != XHCI_INIT_VALUE)
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xhci_dbg(xhci, " WARN: %p: Rsvd[%i] = 0x%x\n",
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&xhci->run_regs->rsvd[i],
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i, (unsigned int) temp);
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}
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}
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void xhci_print_registers(struct xhci_hcd *xhci)
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{
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xhci_print_cap_regs(xhci);
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xhci_print_op_regs(xhci);
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xhci_print_ports(xhci);
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}
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void xhci_dbg_erst(struct xhci_hcd *xhci, struct xhci_erst *erst)
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{
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u64 addr = erst->erst_dma_addr;
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int i;
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struct xhci_erst_entry *entry;
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for (i = 0; i < erst->num_entries; i++) {
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entry = &erst->entries[i];
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xhci_dbg(xhci, "@%016llx %08x %08x %08x %08x\n",
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addr,
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lower_32_bits(le64_to_cpu(entry->seg_addr)),
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upper_32_bits(le64_to_cpu(entry->seg_addr)),
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le32_to_cpu(entry->seg_size),
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le32_to_cpu(entry->rsvd));
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addr += sizeof(*entry);
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}
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}
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void xhci_dbg_cmd_ptrs(struct xhci_hcd *xhci)
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{
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u64 val;
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val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring);
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xhci_dbg(xhci, "// xHC command ring deq ptr low bits + flags = @%08x\n",
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lower_32_bits(val));
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xhci_dbg(xhci, "// xHC command ring deq ptr high bits = @%08x\n",
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upper_32_bits(val));
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}
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/* Print the last 32 bytes for 64-byte contexts */
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static void dbg_rsvd64(struct xhci_hcd *xhci, u64 *ctx, dma_addr_t dma)
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{
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int i;
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for (i = 0; i < 4; i++) {
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xhci_dbg(xhci, "@%p (virt) @%08llx "
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"(dma) %#08llx - rsvd64[%d]\n",
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&ctx[4 + i], (unsigned long long)dma,
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ctx[4 + i], i);
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dma += 8;
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}
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}
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char *xhci_get_slot_state(struct xhci_hcd *xhci,
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struct xhci_container_ctx *ctx)
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{
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struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
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int state = GET_SLOT_STATE(le32_to_cpu(slot_ctx->dev_state));
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return xhci_slot_state_string(state);
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}
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static void xhci_dbg_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx)
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{
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/* Fields are 32 bits wide, DMA addresses are in bytes */
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int field_size = 32 / 8;
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int i;
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struct xhci_slot_ctx *slot_ctx = xhci_get_slot_ctx(xhci, ctx);
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dma_addr_t dma = ctx->dma +
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((unsigned long)slot_ctx - (unsigned long)ctx->bytes);
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int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
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xhci_dbg(xhci, "Slot Context:\n");
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info\n",
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&slot_ctx->dev_info,
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(unsigned long long)dma, slot_ctx->dev_info);
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dma += field_size;
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_info2\n",
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&slot_ctx->dev_info2,
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(unsigned long long)dma, slot_ctx->dev_info2);
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dma += field_size;
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tt_info\n",
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&slot_ctx->tt_info,
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(unsigned long long)dma, slot_ctx->tt_info);
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dma += field_size;
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - dev_state\n",
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&slot_ctx->dev_state,
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(unsigned long long)dma, slot_ctx->dev_state);
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dma += field_size;
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for (i = 0; i < 4; i++) {
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
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&slot_ctx->reserved[i], (unsigned long long)dma,
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slot_ctx->reserved[i], i);
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dma += field_size;
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}
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if (csz)
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dbg_rsvd64(xhci, (u64 *)slot_ctx, dma);
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}
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static void xhci_dbg_ep_ctx(struct xhci_hcd *xhci,
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struct xhci_container_ctx *ctx,
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unsigned int last_ep)
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{
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int i, j;
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int last_ep_ctx = 31;
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/* Fields are 32 bits wide, DMA addresses are in bytes */
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int field_size = 32 / 8;
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int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
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if (last_ep < 31)
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last_ep_ctx = last_ep + 1;
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for (i = 0; i < last_ep_ctx; i++) {
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unsigned int epaddr = xhci_get_endpoint_address(i);
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struct xhci_ep_ctx *ep_ctx = xhci_get_ep_ctx(xhci, ctx, i);
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dma_addr_t dma = ctx->dma +
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((unsigned long)ep_ctx - (unsigned long)ctx->bytes);
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xhci_dbg(xhci, "%s Endpoint %02d Context (ep_index %02d):\n",
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usb_endpoint_out(epaddr) ? "OUT" : "IN",
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epaddr & USB_ENDPOINT_NUMBER_MASK, i);
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info\n",
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&ep_ctx->ep_info,
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(unsigned long long)dma, ep_ctx->ep_info);
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dma += field_size;
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - ep_info2\n",
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&ep_ctx->ep_info2,
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(unsigned long long)dma, ep_ctx->ep_info2);
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dma += field_size;
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08llx - deq\n",
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&ep_ctx->deq,
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(unsigned long long)dma, ep_ctx->deq);
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dma += 2*field_size;
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - tx_info\n",
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&ep_ctx->tx_info,
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(unsigned long long)dma, ep_ctx->tx_info);
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dma += field_size;
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for (j = 0; j < 3; j++) {
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xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd[%d]\n",
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&ep_ctx->reserved[j],
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(unsigned long long)dma,
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ep_ctx->reserved[j], j);
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dma += field_size;
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}
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if (csz)
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dbg_rsvd64(xhci, (u64 *)ep_ctx, dma);
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}
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}
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void xhci_dbg_ctx(struct xhci_hcd *xhci,
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struct xhci_container_ctx *ctx,
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unsigned int last_ep)
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{
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int i;
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/* Fields are 32 bits wide, DMA addresses are in bytes */
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int field_size = 32 / 8;
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dma_addr_t dma = ctx->dma;
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int csz = HCC_64BYTE_CONTEXT(xhci->hcc_params);
|
|
|
|
if (ctx->type == XHCI_CTX_TYPE_INPUT) {
|
|
struct xhci_input_control_ctx *ctrl_ctx =
|
|
xhci_get_input_control_ctx(ctx);
|
|
if (!ctrl_ctx) {
|
|
xhci_warn(xhci, "Could not get input context, bad type.\n");
|
|
return;
|
|
}
|
|
|
|
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - drop flags\n",
|
|
&ctrl_ctx->drop_flags, (unsigned long long)dma,
|
|
ctrl_ctx->drop_flags);
|
|
dma += field_size;
|
|
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - add flags\n",
|
|
&ctrl_ctx->add_flags, (unsigned long long)dma,
|
|
ctrl_ctx->add_flags);
|
|
dma += field_size;
|
|
for (i = 0; i < 6; i++) {
|
|
xhci_dbg(xhci, "@%p (virt) @%08llx (dma) %#08x - rsvd2[%d]\n",
|
|
&ctrl_ctx->rsvd2[i], (unsigned long long)dma,
|
|
ctrl_ctx->rsvd2[i], i);
|
|
dma += field_size;
|
|
}
|
|
|
|
if (csz)
|
|
dbg_rsvd64(xhci, (u64 *)ctrl_ctx, dma);
|
|
}
|
|
|
|
xhci_dbg_slot_ctx(xhci, ctx);
|
|
xhci_dbg_ep_ctx(xhci, ctx, last_ep);
|
|
}
|
|
|
|
void xhci_dbg_trace(struct xhci_hcd *xhci, void (*trace)(struct va_format *),
|
|
const char *fmt, ...)
|
|
{
|
|
struct va_format vaf;
|
|
va_list args;
|
|
|
|
va_start(args, fmt);
|
|
vaf.fmt = fmt;
|
|
vaf.va = &args;
|
|
xhci_dbg(xhci, "%pV\n", &vaf);
|
|
trace(&vaf);
|
|
va_end(args);
|
|
}
|
|
EXPORT_SYMBOL_GPL(xhci_dbg_trace);
|