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[src/trunk]: src/sys/dev/pci - Fix a bug that a device which has no PCIe capa...
details: https://anonhg.NetBSD.org/src/rev/22e21244e984
branches: trunk
changeset: 823790:22e21244e984
user: msaitoh <msaitoh%NetBSD.org@localhost>
date: Tue May 09 06:29:20 2017 +0000
description:
- Fix a bug that a device which has no PCIe capability incorrectly
accessess the PCI config area in ppbdetach().
- Don't add event counters if slot interrupt isn't used.
diffstat:
sys/dev/pci/ppb.c | 185 ++++++++++++++++++++++++++---------------------------
1 files changed, 92 insertions(+), 93 deletions(-)
diffs (238 lines):
diff -r 1125311265e9 -r 22e21244e984 sys/dev/pci/ppb.c
--- a/sys/dev/pci/ppb.c Tue May 09 05:38:50 2017 +0000
+++ b/sys/dev/pci/ppb.c Tue May 09 06:29:20 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ppb.c,v 1.61 2017/04/27 04:44:02 msaitoh Exp $ */
+/* $NetBSD: ppb.c,v 1.62 2017/05/09 06:29:20 msaitoh Exp $ */
/*
* Copyright (c) 1996, 1998 Christopher G. Demetriou. All rights reserved.
@@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ppb.c,v 1.61 2017/04/27 04:44:02 msaitoh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ppb.c,v 1.62 2017/05/09 06:29:20 msaitoh Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@@ -257,7 +257,7 @@
sc->sc_pciecapoff + PCIE_SLCSR, reg);
}
#ifdef PPB_USEINTR
-#if 0
+#if 0 /* notyet */
/*
* XXX Initialize workqueue or something else for
* HotPlug support.
@@ -267,71 +267,88 @@
sc->sc_intrhand = pci_intr_establish_xname(pc,
sc->sc_pihp[0], IPL_BIO, ppb_intr, sc,
device_xname(sc->sc_dev));
+#endif
+ }
- if (sc->sc_intrhand) {
- pcireg_t slcap, slcsr, val;
+#ifdef PPB_USEINTR
+ if (sc->sc_intrhand != NULL) {
+ pcireg_t slcap, slcsr, val;
- intrstr = pci_intr_string(pc, sc->sc_pihp[0], intrbuf,
- sizeof(intrbuf));
- aprint_normal_dev(self, "%s\n", intrstr);
+ intrstr = pci_intr_string(pc, sc->sc_pihp[0], intrbuf,
+ sizeof(intrbuf));
+ aprint_normal_dev(self, "%s\n", intrstr);
- /* Clear any pending events */
- slcsr = pci_conf_read(pc, pa->pa_tag,
- sc->sc_pciecapoff + PCIE_SLCSR);
- pci_conf_write(pc, pa->pa_tag,
- sc->sc_pciecapoff + PCIE_SLCSR, slcsr);
+ /* Clear any pending events */
+ slcsr = pci_conf_read(pc, pa->pa_tag,
+ sc->sc_pciecapoff + PCIE_SLCSR);
+ pci_conf_write(pc, pa->pa_tag,
+ sc->sc_pciecapoff + PCIE_SLCSR, slcsr);
- /* Enable interrupt. */
- val = 0;
- slcap = pci_conf_read(pc, pa->pa_tag,
- sc->sc_pciecapoff + PCIE_SLCAP);
- if (slcap & PCIE_SLCAP_ABP)
- val |= PCIE_SLCSR_ABE;
- if (slcap & PCIE_SLCAP_PCP)
- val |= PCIE_SLCSR_PFE;
- if (slcap & PCIE_SLCAP_MSP)
- val |= PCIE_SLCSR_MSE;
+ /* Enable interrupt. */
+ val = 0;
+ slcap = pci_conf_read(pc, pa->pa_tag,
+ sc->sc_pciecapoff + PCIE_SLCAP);
+ if (slcap & PCIE_SLCAP_ABP)
+ val |= PCIE_SLCSR_ABE;
+ if (slcap & PCIE_SLCAP_PCP)
+ val |= PCIE_SLCSR_PFE;
+ if (slcap & PCIE_SLCAP_MSP)
+ val |= PCIE_SLCSR_MSE;
#if 0
- /*
- * XXX Disable for a while because setting
- * PCIE_SLCSR_CCE makes break device access on
- * some environment.
- */
- if ((slcap & PCIE_SLCAP_NCCS) == 0)
- val |= PCIE_SLCSR_CCE;
+ /*
+ * XXX Disable for a while because setting
+ * PCIE_SLCSR_CCE makes break device access on
+ * some environment.
+ */
+ if ((slcap & PCIE_SLCAP_NCCS) == 0)
+ val |= PCIE_SLCSR_CCE;
#endif
- /* Attention indicator off by default */
- if (slcap & PCIE_SLCAP_AIP) {
+ /* Attention indicator off by default */
+ if (slcap & PCIE_SLCAP_AIP) {
+ val |= __SHIFTIN(PCIE_SLCSR_IND_OFF,
+ PCIE_SLCSR_AIC);
+ }
+ /* Power indicator */
+ if (slcap & PCIE_SLCAP_PIP) {
+ /*
+ * Indicator off:
+ * a) card not present
+ * b) power fault
+ * c) MRL sensor off
+ */
+ if (((slcsr & PCIE_SLCSR_PDS) == 0)
+ || ((slcsr & PCIE_SLCSR_PFD) != 0)
+ || (((slcap & PCIE_SLCAP_MSP) != 0)
+ && ((slcsr & PCIE_SLCSR_MS) != 0)))
val |= __SHIFTIN(PCIE_SLCSR_IND_OFF,
- PCIE_SLCSR_AIC);
- }
- /* Power indicator */
- if (slcap & PCIE_SLCAP_PIP) {
- /*
- * Indicator off:
- * a) card not present
- * b) power fault
- * c) MRL sensor off
- */
- if (((slcsr & PCIE_SLCSR_PDS) == 0)
- || ((slcsr & PCIE_SLCSR_PFD) != 0)
- || (((slcap & PCIE_SLCAP_MSP) != 0)
- && ((slcsr & PCIE_SLCSR_MS) != 0)))
- val |= __SHIFTIN(PCIE_SLCSR_IND_OFF,
- PCIE_SLCSR_PIC);
- else
- val |= __SHIFTIN(PCIE_SLCSR_IND_ON,
- PCIE_SLCSR_PIC);
- }
+ PCIE_SLCSR_PIC);
+ else
+ val |= __SHIFTIN(PCIE_SLCSR_IND_ON,
+ PCIE_SLCSR_PIC);
+ }
+
+ val |= PCIE_SLCSR_DLLSCE | PCIE_SLCSR_HPE | PCIE_SLCSR_PDE;
+ slcsr = val;
+ pci_conf_write(pc, pa->pa_tag,
+ sc->sc_pciecapoff + PCIE_SLCSR, slcsr);
- val |= PCIE_SLCSR_DLLSCE | PCIE_SLCSR_HPE
- | PCIE_SLCSR_PDE;
- slcsr = val;
- pci_conf_write(pc, pa->pa_tag,
- sc->sc_pciecapoff + PCIE_SLCSR, slcsr);
- }
+ /* Attach event counters */
+ evcnt_attach_dynamic(&sc->sc_ev_intr, EVCNT_TYPE_INTR, NULL,
+ device_xname(sc->sc_dev), "Interrupt");
+ evcnt_attach_dynamic(&sc->sc_ev_abp, EVCNT_TYPE_MISC, NULL,
+ device_xname(sc->sc_dev), "Attention Button Pressed");
+ evcnt_attach_dynamic(&sc->sc_ev_pfd, EVCNT_TYPE_MISC, NULL,
+ device_xname(sc->sc_dev), "Power Fault Detected");
+ evcnt_attach_dynamic(&sc->sc_ev_msc, EVCNT_TYPE_MISC, NULL,
+ device_xname(sc->sc_dev), "MRL Sensor Changed");
+ evcnt_attach_dynamic(&sc->sc_ev_pdc, EVCNT_TYPE_MISC, NULL,
+ device_xname(sc->sc_dev), "Presence Detect Changed");
+ evcnt_attach_dynamic(&sc->sc_ev_cc, EVCNT_TYPE_MISC, NULL,
+ device_xname(sc->sc_dev), "Command Completed");
+ evcnt_attach_dynamic(&sc->sc_ev_lacs, EVCNT_TYPE_MISC, NULL,
+ device_xname(sc->sc_dev), "Data Link Layer State Changed");
+ }
#endif /* PPB_USEINTR */
- }
if (!pmf_device_register(self, ppb_suspend, ppb_resume))
aprint_error_dev(self, "couldn't establish power handler\n");
@@ -354,24 +371,6 @@
pba.pba_intrswiz = pa->pa_intrswiz;
pba.pba_intrtag = pa->pa_intrtag;
-#ifdef PPB_USEINTR
- /* Attach event counters */
- evcnt_attach_dynamic(&sc->sc_ev_intr, EVCNT_TYPE_INTR, NULL,
- device_xname(sc->sc_dev), "Interrupt");
- evcnt_attach_dynamic(&sc->sc_ev_abp, EVCNT_TYPE_MISC, NULL,
- device_xname(sc->sc_dev), "Attention Button Pressed");
- evcnt_attach_dynamic(&sc->sc_ev_pfd, EVCNT_TYPE_MISC, NULL,
- device_xname(sc->sc_dev), "Power Fault Detected");
- evcnt_attach_dynamic(&sc->sc_ev_msc, EVCNT_TYPE_MISC, NULL,
- device_xname(sc->sc_dev), "MRL Sensor Changed");
- evcnt_attach_dynamic(&sc->sc_ev_pdc, EVCNT_TYPE_MISC, NULL,
- device_xname(sc->sc_dev), "Presence Detect Changed");
- evcnt_attach_dynamic(&sc->sc_ev_cc, EVCNT_TYPE_MISC, NULL,
- device_xname(sc->sc_dev), "Command Completed");
- evcnt_attach_dynamic(&sc->sc_ev_lacs, EVCNT_TYPE_MISC, NULL,
- device_xname(sc->sc_dev), "Data Link Layer State Changed");
-#endif
-
config_found_ia(self, "pcibus", &pba, pcibusprint);
}
@@ -388,24 +387,24 @@
return rc;
#ifdef PPB_USEINTR
- /* Detach event counters */
- evcnt_detach(&sc->sc_ev_intr);
- evcnt_detach(&sc->sc_ev_abp);
- evcnt_detach(&sc->sc_ev_pfd);
- evcnt_detach(&sc->sc_ev_msc);
- evcnt_detach(&sc->sc_ev_pdc);
- evcnt_detach(&sc->sc_ev_cc);
- evcnt_detach(&sc->sc_ev_lacs);
+ if (sc->sc_intrhand != NULL) {
+ /* Detach event counters */
+ evcnt_detach(&sc->sc_ev_intr);
+ evcnt_detach(&sc->sc_ev_abp);
+ evcnt_detach(&sc->sc_ev_pfd);
+ evcnt_detach(&sc->sc_ev_msc);
+ evcnt_detach(&sc->sc_ev_pdc);
+ evcnt_detach(&sc->sc_ev_cc);
+ evcnt_detach(&sc->sc_ev_lacs);
- /* Clear any pending events and disable interrupt */
- slcsr = pci_conf_read(sc->sc_pc, sc->sc_tag,
- sc->sc_pciecapoff + PCIE_SLCSR);
- slcsr &= ~PCIE_SLCSR_ENABLE_MASK;
- pci_conf_write(sc->sc_pc, sc->sc_tag,
- sc->sc_pciecapoff + PCIE_SLCSR, slcsr);
+ /* Clear any pending events and disable interrupt */
+ slcsr = pci_conf_read(sc->sc_pc, sc->sc_tag,
+ sc->sc_pciecapoff + PCIE_SLCSR);
+ slcsr &= ~PCIE_SLCSR_ENABLE_MASK;
+ pci_conf_write(sc->sc_pc, sc->sc_tag,
+ sc->sc_pciecapoff + PCIE_SLCSR, slcsr);
- /* Disestablish the interrupt handler */
- if (sc->sc_intrhand != NULL) {
+ /* Disestablish the interrupt handler */
pci_intr_disestablish(sc->sc_pc, sc->sc_intrhand);
pci_intr_release(sc->sc_pc, sc->sc_pihp, 1);
}
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