[src/trunk]: src/sys/dev/pci Add a PCI front-end for the "amdccp" (AMD Crypto...

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

details:   https://anonhg.NetBSD.org/src/rev/ac8ef6d510a4
branches:  trunk
changeset: 973200:ac8ef6d510a4
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Wed Jun 24 03:38:01 2020 +0000

description:
Add a PCI front-end for the "amdccp" (AMD Cryptographic Coprocessor)
driver.

diffstat:

 sys/dev/pci/amdccp_pci.c |  119 +++++++++++++++++++++++++++++++++++++++++++++++
 sys/dev/pci/files.pci    |    6 +-
 2 files changed, 124 insertions(+), 1 deletions(-)

diffs (143 lines):

diff -r 8bc509bca03e -r ac8ef6d510a4 sys/dev/pci/amdccp_pci.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/sys/dev/pci/amdccp_pci.c  Wed Jun 24 03:38:01 2020 +0000
@@ -0,0 +1,119 @@
+/* $NetBSD: amdccp_pci.c,v 1.1 2020/06/24 03:38:01 thorpej Exp $ */
+
+/*-
+ * Copyright (c) 2020 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: amdccp_pci.c,v 1.1 2020/06/24 03:38:01 thorpej Exp $");
+
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/device.h>
+
+#include <dev/pci/pcireg.h>
+#include <dev/pci/pcivar.h>
+#include <dev/pci/pcidevs.h>
+
+#include <dev/ic/amdccpvar.h>
+
+static int     amdccp_pci_match(device_t, cfdata_t, void *);
+static void    amdccp_pci_attach(device_t, device_t, void *);
+
+CFATTACH_DECL_NEW(amdccp_pci, sizeof(struct amdccp_softc),
+    amdccp_pci_match, amdccp_pci_attach, NULL, NULL);
+
+#define        AMDCCP_MEM_BAR          PCI_BAR2
+
+static const struct amdccp_pci_product {
+       pci_vendor_id_t         vendor;
+       pci_product_id_t        product;
+} amdccp_pci_products[] = {
+       { .vendor       =       PCI_VENDOR_AMD,
+         .product      =       PCI_PRODUCT_AMD_F16_CCP,
+       },
+       { .vendor       =       PCI_VENDOR_AMD,
+         .product      =       PCI_PRODUCT_AMD_F17_CCP_1,
+       },
+       { .vendor       =       PCI_VENDOR_AMD,
+         .product      =       PCI_PRODUCT_AMD_F17_CCP_2,
+       },
+       { .vendor       =       PCI_VENDOR_AMD,
+         .product      =       PCI_PRODUCT_AMD_F17_7X_CCP,
+       },
+};
+
+static const struct amdccp_pci_product *
+amdccp_pci_lookup(const struct pci_attach_args * const pa)
+{
+       unsigned int i;
+
+       for (i = 0; i < __arraycount(amdccp_pci_products); i++) {
+               if (PCI_VENDOR(pa->pa_id)  == amdccp_pci_products[i].vendor &&
+                   PCI_PRODUCT(pa->pa_id) == amdccp_pci_products[i].product) {
+                       return &amdccp_pci_products[i];
+               }
+       }
+       return NULL;
+}
+
+static int
+amdccp_pci_match(device_t parent, cfdata_t cf, void *aux)
+{
+       const struct pci_attach_args * const pa = aux;
+
+       return amdccp_pci_lookup(pa) != NULL;
+}
+
+static void
+amdccp_pci_attach(device_t parent, device_t self, void *aux)
+{
+       struct amdccp_softc * const sc = device_private(self);
+       const struct pci_attach_args * const pa = aux;
+       pcireg_t type;
+
+       sc->sc_dev = self;
+
+       aprint_naive("\n");
+       aprint_normal(": AMD Cryptographc Coprocessor\n");
+
+       type = pci_mapreg_type(pa->pa_pc, pa->pa_tag, AMDCCP_MEM_BAR);
+       if (PCI_MAPREG_TYPE(type) != PCI_MAPREG_TYPE_MEM) {
+               aprint_error_dev(self, "expected MEM register, got IO\n");
+               return;
+       }
+
+       if (pci_mapreg_map(pa, AMDCCP_MEM_BAR, type, 0,
+                          &sc->sc_bst, &sc->sc_bsh, NULL, NULL) != 0) {
+               aprint_error_dev(self, "unable to map device registers\n");
+               return;
+       }
+
+       amdccp_common_attach(sc);
+}
diff -r 8bc509bca03e -r ac8ef6d510a4 sys/dev/pci/files.pci
--- a/sys/dev/pci/files.pci     Wed Jun 24 03:35:29 2020 +0000
+++ b/sys/dev/pci/files.pci     Wed Jun 24 03:38:01 2020 +0000
@@ -1,4 +1,4 @@
-#      $NetBSD: files.pci,v 1.428 2020/05/21 22:58:46 macallan Exp $
+#      $NetBSD: files.pci,v 1.429 2020/06/24 03:38:01 thorpej Exp $
 #
 # Config file and device description for machine-independent PCI code.
 # Included by ports that need it.  Requires that the SCSI files be
@@ -756,6 +756,10 @@
 file   dev/pci/amdpm.c                 amdpm
 file   dev/pci/amdpm_smbus.c           amdpm
 
+# AMD Cryptographic Coprocessor
+attach amdccp at pci with amdccp_pci
+file   dev/pci/amdccp_pci.c            amdccp_pci
+
 # Hi/fn 7751
 device hifn: opencrypto
 attach hifn at pci