sdhci: add qtest to check the SD capabilities register

The PCI model is tested with the pc/x86_64 machine,
the SysBus model with the smdkc210/arm machine.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20180208164818.7961-3-f4bug@amsat.org>

tests/Makefile.include

@@ -294,6 +294,7 @@ check-qtest-i386-y += tests/migration-test$(EXESUF)
 check-qtest-i386-y += tests/test-x86-cpuid-compat$(EXESUF)
 check-qtest-i386-y += tests/numa-test$(EXESUF)
 check-qtest-x86_64-y += $(check-qtest-i386-y)
+check-qtest-x86_64-y += tests/sdhci-test$(EXESUF)
 gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c
 gcov-files-x86_64-y = $(subst i386-softmmu/,x86_64-softmmu/,$(gcov-files-i386-y))
 
@@ -367,6 +368,7 @@ gcov-files-arm-y += arm-softmmu/hw/block/virtio-blk.c
 check-qtest-arm-y += tests/test-arm-mptimer$(EXESUF)
 gcov-files-arm-y += hw/timer/arm_mptimer.c
 check-qtest-arm-y += tests/boot-serial-test$(EXESUF)
+check-qtest-arm-y += tests/sdhci-test$(EXESUF)
 
 check-qtest-aarch64-y = tests/numa-test$(EXESUF)
 
@@ -822,6 +824,7 @@ tests/test-arm-mptimer$(EXESUF): tests/test-arm-mptimer.o
 tests/test-qapi-util$(EXESUF): tests/test-qapi-util.o $(test-util-obj-y)
 tests/numa-test$(EXESUF): tests/numa-test.o
 tests/vmgenid-test$(EXESUF): tests/vmgenid-test.o tests/boot-sector.o tests/acpi-utils.o
+tests/sdhci-test$(EXESUF): tests/sdhci-test.o $(libqos-pc-obj-y)
 
 tests/migration/stress$(EXESUF): tests/migration/stress.o
 	$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"LINK","$(TARGET_DIR)$@")

tests/sdhci-test.c

@@ -0,0 +1,143 @@
+/*
+ * QTest testcase for SDHCI controllers
+ *
+ * Written by Philippe Mathieu-Daudé <f4bug@amsat.org>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+#include "qemu/osdep.h"
+#include "hw/registerfields.h"
+#include "libqtest.h"
+#include "libqos/pci-pc.h"
+#include "hw/pci/pci.h"
+
+#define SDHC_CAPAB                      0x40
+#define SDHC_HCVER                      0xFE
+
+static const struct sdhci_t {
+    const char *arch, *machine;
+    struct {
+        uintptr_t addr;
+        uint8_t version;
+        uint8_t baseclock;
+        struct {
+            bool sdma;
+            uint64_t reg;
+        } capab;
+    } sdhci;
+    struct {
+        uint16_t vendor_id, device_id;
+    } pci;
+} models[] = {
+    /* PC via PCI */
+    { "x86_64", "pc",
+        {-1,         2, 0,  {1, 0x057834b4} },
+        .pci = { PCI_VENDOR_ID_REDHAT, PCI_DEVICE_ID_REDHAT_SDHCI } },
+
+    /* Exynos4210 */
+    { "arm",    "smdkc210",
+        {0x12510000, 2, 0,  {1, 0x5e80080} } },
+};
+
+typedef struct QSDHCI {
+    struct {
+        QPCIBus *bus;
+        QPCIDevice *dev;
+    } pci;
+    union {
+        QPCIBar mem_bar;
+        uint64_t addr;
+    };
+} QSDHCI;
+
+static uint64_t sdhci_readq(QSDHCI *s, uint32_t reg)
+{
+    uint64_t val;
+
+    if (s->pci.dev) {
+        val = qpci_io_readq(s->pci.dev, s->mem_bar, reg);
+    } else {
+        val = qtest_readq(global_qtest, s->addr + reg);
+    }
+
+    return val;
+}
+
+static void check_capab_capareg(QSDHCI *s, uint64_t expec_capab)
+{
+    uint64_t capab;
+
+    capab = sdhci_readq(s, SDHC_CAPAB);
+    g_assert_cmphex(capab, ==, expec_capab);
+}
+
+static QSDHCI *machine_start(const struct sdhci_t *test)
+{
+    QSDHCI *s = g_new0(QSDHCI, 1);
+
+    if (test->pci.vendor_id) {
+        /* PCI */
+        uint16_t vendor_id, device_id;
+        uint64_t barsize;
+
+        global_qtest = qtest_startf("-machine %s -device sdhci-pci",
+                                    test->machine);
+
+        s->pci.bus = qpci_init_pc(NULL);
+
+        /* Find PCI device and verify it's the right one */
+        s->pci.dev = qpci_device_find(s->pci.bus, QPCI_DEVFN(4, 0));
+        g_assert_nonnull(s->pci.dev);
+        vendor_id = qpci_config_readw(s->pci.dev, PCI_VENDOR_ID);
+        device_id = qpci_config_readw(s->pci.dev, PCI_DEVICE_ID);
+        g_assert(vendor_id == test->pci.vendor_id);
+        g_assert(device_id == test->pci.device_id);
+        s->mem_bar = qpci_iomap(s->pci.dev, 0, &barsize);
+        qpci_device_enable(s->pci.dev);
+    } else {
+        /* SysBus */
+        global_qtest = qtest_startf("-machine %s", test->machine);
+        s->addr = test->sdhci.addr;
+    }
+
+    return s;
+}
+
+static void machine_stop(QSDHCI *s)
+{
+    g_free(s->pci.dev);
+    qtest_quit(global_qtest);
+}
+
+static void test_machine(const void *data)
+{
+    const struct sdhci_t *test = data;
+    QSDHCI *s;
+
+    s = machine_start(test);
+
+    check_capab_capareg(s, test->sdhci.capab.reg);
+
+    machine_stop(s);
+}
+
+int main(int argc, char *argv[])
+{
+    const char *arch = qtest_get_arch();
+    char *name;
+    int i;
+
+    g_test_init(&argc, &argv, NULL);
+    for (i = 0; i < ARRAY_SIZE(models); i++) {
+        if (strcmp(arch, models[i].arch)) {
+            continue;
+        }
+        name = g_strdup_printf("sdhci/%s", models[i].machine);
+        qtest_add_data_func(name, &models[i], test_machine);
+        g_free(name);
+    }
+
+    return g_test_run();
+}