[src/trunk]: src/sys/dev/usb xhci(4): copy HCCPARAMS regs to softc, use when ...

[jakllsch <jakllsch%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/1b6311e6fc10
branches:  trunk
changeset: 942887:1b6311e6fc10
user:      jakllsch <jakllsch%NetBSD.org@localhost>
date:      Fri Aug 21 20:16:39 2020 +0000

description:
xhci(4): copy HCCPARAMS regs to softc, use when needed

We'll need more than just the AC64 bit for the Isoc support coming up;
and we don't need to keep all the bits as bools in the softc.

diffstat:

 sys/dev/usb/xhci.c    |  35 +++++++++++++++++------------------
 sys/dev/usb/xhcivar.h |   5 +++--
 2 files changed, 20 insertions(+), 20 deletions(-)

diffs (141 lines):

diff -r 75bdba311e35 -r 1b6311e6fc10 sys/dev/usb/xhci.c
--- a/sys/dev/usb/xhci.c        Fri Aug 21 17:51:31 2020 +0000
+++ b/sys/dev/usb/xhci.c        Fri Aug 21 20:16:39 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: xhci.c,v 1.132 2020/06/06 08:56:30 skrll Exp $ */
+/*     $NetBSD: xhci.c,v 1.133 2020/08/21 20:16:39 jakllsch Exp $      */
 
 /*
  * Copyright (c) 2013 Jonathan A. Kollasch
@@ -34,7 +34,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: xhci.c,v 1.132 2020/06/06 08:56:30 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: xhci.c,v 1.133 2020/08/21 20:16:39 jakllsch Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_usb.h"
@@ -323,7 +323,7 @@
 {
        uint64_t value;
 
-       if (sc->sc_ac64) {
+       if (XHCI_HCC_AC64(sc->sc_hcc)) {
 #ifdef XHCI_USE_BUS_SPACE_8
                value = bus_space_read_8(sc->sc_iot, sc->sc_obh, offset);
 #else
@@ -342,7 +342,7 @@
 xhci_op_write_8(const struct xhci_softc * const sc, bus_size_t offset,
     uint64_t value)
 {
-       if (sc->sc_ac64) {
+       if (XHCI_HCC_AC64(sc->sc_hcc)) {
 #ifdef XHCI_USE_BUS_SPACE_8
                bus_space_write_8(sc->sc_iot, sc->sc_obh, offset, value);
 #else
@@ -382,7 +382,7 @@
 {
        uint64_t value;
 
-       if (sc->sc_ac64) {
+       if (XHCI_HCC_AC64(sc->sc_hcc)) {
 #ifdef XHCI_USE_BUS_SPACE_8
                value = bus_space_read_8(sc->sc_iot, sc->sc_rbh, offset);
 #else
@@ -402,7 +402,7 @@
 xhci_rt_write_8(const struct xhci_softc * const sc, bus_size_t offset,
     uint64_t value)
 {
-       if (sc->sc_ac64) {
+       if (XHCI_HCC_AC64(sc->sc_hcc)) {
 #ifdef XHCI_USE_BUS_SPACE_8
                bus_space_write_8(sc->sc_iot, sc->sc_rbh, offset, value);
 #else
@@ -826,11 +826,11 @@
 
 /* Process extended capabilities */
 static void
-xhci_ecp(struct xhci_softc *sc, uint32_t hcc)
+xhci_ecp(struct xhci_softc *sc)
 {
        XHCIHIST_FUNC(); XHCIHIST_CALLED();
 
-       bus_size_t ecp = XHCI_HCC_XECP(hcc) * 4;
+       bus_size_t ecp = XHCI_HCC_XECP(sc->sc_hcc) * 4;
        while (ecp != 0) {
                uint32_t ecr = xhci_read_4(sc, ecp);
                aprint_debug_dev(sc->sc_dev, "ECR: 0x%08x\n", ecr);
@@ -944,7 +944,7 @@
 xhci_init(struct xhci_softc *sc)
 {
        bus_size_t bsz;
-       uint32_t hcs1, hcs2, hcs3, hcc, dboff, rtsoff, hcc2;
+       uint32_t hcs1, hcs2, hcs3, dboff, rtsoff;
        uint32_t pagesize, config;
        int i = 0;
        uint16_t hciversion;
@@ -993,21 +993,20 @@
        aprint_debug_dev(sc->sc_dev,
            "hcs1=%"PRIx32" hcs2=%"PRIx32" hcs3=%"PRIx32"\n", hcs1, hcs2, hcs3);
 
-       hcc = xhci_cap_read_4(sc, XHCI_HCCPARAMS);
-       sc->sc_ac64 = XHCI_HCC_AC64(hcc);
-       sc->sc_ctxsz = XHCI_HCC_CSZ(hcc) ? 64 : 32;
+       sc->sc_hcc = xhci_cap_read_4(sc, XHCI_HCCPARAMS);
+       sc->sc_ctxsz = XHCI_HCC_CSZ(sc->sc_hcc) ? 64 : 32;
 
        char sbuf[128];
        if (hciversion < XHCI_HCIVERSION_1_0)
-               snprintb(sbuf, sizeof(sbuf), XHCI_HCCPREV1_BITS, hcc);
+               snprintb(sbuf, sizeof(sbuf), XHCI_HCCPREV1_BITS, sc->sc_hcc);
        else
-               snprintb(sbuf, sizeof(sbuf), XHCI_HCCV1_x_BITS, hcc);
+               snprintb(sbuf, sizeof(sbuf), XHCI_HCCV1_x_BITS, sc->sc_hcc);
        aprint_debug_dev(sc->sc_dev, "hcc=%s\n", sbuf);
        aprint_debug_dev(sc->sc_dev, "xECP %" __PRIxBITS "\n",
-           XHCI_HCC_XECP(hcc) * 4);
+           XHCI_HCC_XECP(sc->sc_hcc) * 4);
        if (hciversion >= XHCI_HCIVERSION_1_1) {
-               hcc2 = xhci_cap_read_4(sc, XHCI_HCCPARAMS2);
-               snprintb(sbuf, sizeof(sbuf), XHCI_HCC2_BITS, hcc2);
+               sc->sc_hcc2 = xhci_cap_read_4(sc, XHCI_HCCPARAMS2);
+               snprintb(sbuf, sizeof(sbuf), XHCI_HCC2_BITS, sc->sc_hcc2);
                aprint_debug_dev(sc->sc_dev, "hcc2=%s\n", sbuf);
        }
 
@@ -1024,7 +1023,7 @@
        /*
         * Process all Extended Capabilities
         */
-       xhci_ecp(sc, hcc);
+       xhci_ecp(sc);
 
        bsz = XHCI_PORTSC(sc->sc_maxports);
        if (bus_space_subregion(sc->sc_iot, sc->sc_ioh, caplength, bsz,
diff -r 75bdba311e35 -r 1b6311e6fc10 sys/dev/usb/xhcivar.h
--- a/sys/dev/usb/xhcivar.h     Fri Aug 21 17:51:31 2020 +0000
+++ b/sys/dev/usb/xhcivar.h     Fri Aug 21 20:16:39 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: xhcivar.h,v 1.15 2020/05/21 13:47:10 jakllsch Exp $    */
+/*     $NetBSD: xhcivar.h,v 1.16 2020/08/21 20:16:39 jakllsch Exp $    */
 
 /*
  * Copyright (c) 2013 Jonathan A. Kollasch
@@ -127,7 +127,6 @@
        struct xhci_soft_trb sc_result_trb;
        bool sc_resultpending;
 
-       bool sc_ac64;
        bool sc_dying;
 
        void (*sc_vendor_init)(struct xhci_softc *);
@@ -136,6 +135,8 @@
        int sc_quirks;
 #define XHCI_QUIRK_INTEL       __BIT(0) /* Intel xhci chip */
 #define XHCI_DEFERRED_START    __BIT(1)
+       uint32_t sc_hcc;                /* copy of HCCPARAMS1 */
+       uint32_t sc_hcc2;               /* copy of HCCPARAMS2 */
 };
 
 int    xhci_init(struct xhci_softc *);