Module Name: src
Committed By: msaitoh
Date: Wed May 11 05:12:57 UTC 2016
Modified Files:
src/sys/dev/pci: pci_subr.c pcireg.h
Log Message:
Add Precision Time Management (PTM) ECN.
To generate a diff of this commit:
cvs rdiff -u -r1.146 -r1.147 src/sys/dev/pci/pci_subr.c
cvs rdiff -u -r1.112 -r1.113 src/sys/dev/pci/pcireg.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/pci_subr.c
diff -u src/sys/dev/pci/pci_subr.c:1.146 src/sys/dev/pci/pci_subr.c:1.147
--- src/sys/dev/pci/pci_subr.c:1.146 Wed Nov 18 04:24:02 2015
+++ src/sys/dev/pci/pci_subr.c Wed May 11 05:12:57 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: pci_subr.c,v 1.146 2015/11/18 04:24:02 msaitoh Exp $ */
+/* $NetBSD: pci_subr.c,v 1.147 2016/05/11 05:12:57 msaitoh Exp $ */
/*
* Copyright (c) 1997 Zubin D. Dittia. All rights reserved.
@@ -40,7 +40,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: pci_subr.c,v 1.146 2015/11/18 04:24:02 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: pci_subr.c,v 1.147 2016/05/11 05:12:57 msaitoh Exp $");
#ifdef _KERNEL_OPT
#include "opt_pci.h"
@@ -3233,7 +3233,52 @@ pci_conf_print_l1pm_cap(const pcireg_t *
printf("%dus\n", val * scale);
}
-/* XXX pci_conf_print_ptm_cap */
+static void
+pci_conf_print_ptm_cap(const pcireg_t *regs, int capoff, int extcapoff)
+{
+ pcireg_t reg;
+ uint32_t val;
+
+ printf("\n Precision Time Management\n");
+
+ reg = regs[o2i(extcapoff + PCI_PTM_CAP)];
+ printf(" PTM Capability register: 0x%08x\n", reg);
+ onoff("PTM Requester Capable", reg, PCI_PTM_CAP_REQ);
+ onoff("PTM Responder Capable", reg, PCI_PTM_CAP_RESP);
+ onoff("PTM Root Capable", reg, PCI_PTM_CAP_ROOT);
+ printf(" Local Clock Granularity: ");
+ val = __SHIFTOUT(reg, PCI_PTM_CAP_LCLCLKGRNL);
+ switch (val) {
+ case 0:
+ printf("Not implemented\n");
+ break;
+ case 0xffff:
+ printf("> 254ns\n");
+ break;
+ default:
+ printf("%uns\n", val);
+ break;
+ }
+
+ reg = regs[o2i(extcapoff + PCI_PTM_CTL)];
+ printf(" PTM Control register: 0x%08x\n", reg);
+ onoff("PTM Enable", reg, PCI_PTM_CTL_EN);
+ onoff("Root Select", reg, PCI_PTM_CTL_ROOTSEL);
+ printf(" Effective Granularity: ");
+ val = __SHIFTOUT(reg, PCI_PTM_CTL_EFCTGRNL);
+ switch (val) {
+ case 0:
+ printf("Unknown\n");
+ break;
+ case 0xffff:
+ printf("> 254ns\n");
+ break;
+ default:
+ printf("%uns\n", val);
+ break;
+ }
+}
+
/* XXX pci_conf_print_mpcie_cap */
/* XXX pci_conf_print_frsq_cap */
/* XXX pci_conf_print_rtr_cap */
@@ -3311,7 +3356,7 @@ static struct {
{ PCI_EXTCAP_L1PM, "L1 PM Substates",
pci_conf_print_l1pm_cap },
{ PCI_EXTCAP_PTM, "Precision Time Management",
- NULL },
+ pci_conf_print_ptm_cap },
{ PCI_EXTCAP_MPCIE, "M-PCIe",
NULL },
{ PCI_EXTCAP_FRSQ, "Function Reading Status Queueing",
Index: src/sys/dev/pci/pcireg.h
diff -u src/sys/dev/pci/pcireg.h:1.112 src/sys/dev/pci/pcireg.h:1.113
--- src/sys/dev/pci/pcireg.h:1.112 Wed Nov 18 04:24:02 2015
+++ src/sys/dev/pci/pcireg.h Wed May 11 05:12:57 2016
@@ -1,4 +1,4 @@
-/* $NetBSD: pcireg.h,v 1.112 2015/11/18 04:24:02 msaitoh Exp $ */
+/* $NetBSD: pcireg.h,v 1.113 2016/05/11 05:12:57 msaitoh Exp $ */
/*
* Copyright (c) 1995, 1996, 1999, 2000
@@ -1890,4 +1890,38 @@ struct pci_rom {
#define PCI_L1PM_CTL2_TPOSCALE __BITS(1, 0) /* T_POWER_ON Scale */
#define PCI_L1PM_CTL2_TPOVAL __BITS(7, 3) /* T_POWER_ON Value */
+/*
+ * Extended capability ID: 0x001f
+ * Precision Time Management
+ */
+#define PCI_PTM_CAP 0x04 /* Capabilities Register */
+#define PCI_PTM_CAP_REQ __BIT(0) /* PTM Requester Capable */
+#define PCI_PTM_CAP_RESP __BIT(1) /* PTM Responder Capable */
+#define PCI_PTM_CAP_ROOT __BIT(2) /* PTM Root Capable */
+#define PCI_PTM_CAP_LCLCLKGRNL __BITS(15, 8) /* Local Clock Granularity */
+#define PCI_PTM_CTL 0x08 /* Control Register */
+#define PCI_PTM_CTL_EN __BIT(0) /* PTM Enable */
+#define PCI_PTM_CTL_ROOTSEL __BIT(1) /* Root Select */
+#define PCI_PTM_CTL_EFCTGRNL __BITS(15, 8) /* Effective Granularity */
+
+/*
+ * Extended capability ID: 0x0020
+ * M-PCIe
+ */
+
+/*
+ * Extended capability ID: 0x0021
+ * Function Reading Status Queueing
+ */
+
+/*
+ * Extended capability ID: 0x0022
+ * Readiness Time Reporting
+ */
+
+/*
+ * Extended capability ID: 0x0023
+ * Designated Vendor-Specific
+ */
+
#endif /* _DEV_PCI_PCIREG_H_ */
