Attachment 237490 Details for Bug 253288 – simple debug patch

[patch] simple debug patch

debug.patch (text/plain), 1.31 KB, created by Luís Henriques on 2022-10-20 22:06:58 UTC

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Creator: Luís Henriques

Created: 2022-10-20 22:06:58 UTC

Size: 1.31 KB

patch

obsolete

>diff --git a/sys/dev/acpica/acpi_cpu.c b/sys/dev/acpica/acpi_cpu.c
>index 3321019beaf..95ec8899ca8 100644
>--- a/sys/dev/acpica/acpi_cpu.c
>+++ b/sys/dev/acpica/acpi_cpu.c
>@@ -403,8 +403,16 @@ acpi_cpu_attach(device_t dev)
>      * Work around a lingering SMM bug which leads to freezes when handling
>      * CPPC notifications. Tell the SMM we will handle any CPPC notifications.
>      */
>-    if ((cpu_power_eax & CPUTPM1_HWP_NOTIFICATION) && cppc_notify)
>+    if ((cpu_power_eax & CPUTPM1_HWP_NOTIFICATION) && cppc_notify) {
>+	    device_printf(dev, "==> DEBUG: OK\n");
> 	    sc->cpu_features |= ACPI_CAP_INTR_CPPC;
>+    } else {
>+      device_printf(dev, "==> DEBUG: res: %d eax: 0x%x mask: 0x%x "
>+		    "cppc_notify: %d\n",
>+		    (cpu_power_eax & CPUTPM1_HWP_NOTIFICATION),
>+		    cpu_power_eax, CPUTPM1_HWP_NOTIFICATION,
>+		    cppc_notify);
>+    }
> #endif
> 
>     if (devclass_get_drivers(acpi_cpu_devclass, &drivers, &drv_count) == 0) {
>@@ -990,6 +998,7 @@ acpi_cpu_startup(void *arg)
>     SYSCTL_ADD_BOOL(&cpu_sysctl_ctx, SYSCTL_CHILDREN(cpu_sysctl_tree),
> 	OID_AUTO, "cppc_notify", CTLFLAG_RDTUN | CTLFLAG_MPSAFE,
> 	&cppc_notify, 0, "Register for CPPC Notifications");
>+    device_printf(sc->cpu_dev, "==> DEBUG init cppc_notify: %d\n", cppc_notify);
> 
>     /* Take over idling from cpu_idle_default(). */
>     cpu_cx_lowest_lim = 0;

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Attachments on bug 253288: 237490