ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/drivers/acpi/acpica/evsci.c b/marvell/linux/drivers/acpi/acpica/evsci.c
new file mode 100644
index 0000000..3915ff6
--- /dev/null
+++ b/marvell/linux/drivers/acpi/acpica/evsci.c
@@ -0,0 +1,214 @@
+// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
+/*******************************************************************************
+ *
+ * Module Name: evsci - System Control Interrupt configuration and
+ * legacy to ACPI mode state transition functions
+ *
+ ******************************************************************************/
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acevents.h"
+
+#define _COMPONENT ACPI_EVENTS
+ACPI_MODULE_NAME("evsci")
+#if (!ACPI_REDUCED_HARDWARE) /* Entire module */
+/* Local prototypes */
+static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context);
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_sci_dispatch
+ *
+ * PARAMETERS: None
+ *
+ * RETURN: Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Dispatch the SCI to all host-installed SCI handlers.
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_sci_dispatch(void)
+{
+ struct acpi_sci_handler_info *sci_handler;
+ acpi_cpu_flags flags;
+ u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
+
+ ACPI_FUNCTION_NAME(ev_sci_dispatch);
+
+ /* Are there any host-installed SCI handlers? */
+
+ if (!acpi_gbl_sci_handler_list) {
+ return (int_status);
+ }
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Invoke all host-installed SCI handlers */
+
+ sci_handler = acpi_gbl_sci_handler_list;
+ while (sci_handler) {
+
+ /* Invoke the installed handler (at interrupt level) */
+
+ int_status |= sci_handler->address(sci_handler->context);
+
+ sci_handler = sci_handler->next;
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return (int_status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_sci_xrupt_handler
+ *
+ * PARAMETERS: context - Calling Context
+ *
+ * RETURN: Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Interrupt handler that will figure out what function or
+ * control method to call to deal with a SCI.
+ *
+ ******************************************************************************/
+
+static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
+{
+ struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
+ u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
+
+ ACPI_FUNCTION_TRACE(ev_sci_xrupt_handler);
+
+ /*
+ * We are guaranteed by the ACPICA initialization/shutdown code that
+ * if this interrupt handler is installed, ACPI is enabled.
+ */
+
+ /*
+ * Fixed Events:
+ * Check for and dispatch any Fixed Events that have occurred
+ */
+ interrupt_handled |= acpi_ev_fixed_event_detect();
+
+ /*
+ * General Purpose Events:
+ * Check for and dispatch any GPEs that have occurred
+ */
+ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
+
+ /* Invoke all host-installed SCI handlers */
+
+ interrupt_handled |= acpi_ev_sci_dispatch();
+
+ acpi_sci_count++;
+ return_UINT32(interrupt_handled);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_ev_gpe_xrupt_handler
+ *
+ * PARAMETERS: context - Calling Context
+ *
+ * RETURN: Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Handler for GPE Block Device interrupts
+ *
+ ******************************************************************************/
+
+u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
+{
+ struct acpi_gpe_xrupt_info *gpe_xrupt_list = context;
+ u32 interrupt_handled = ACPI_INTERRUPT_NOT_HANDLED;
+
+ ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler);
+
+ /*
+ * We are guaranteed by the ACPICA initialization/shutdown code that
+ * if this interrupt handler is installed, ACPI is enabled.
+ */
+
+ /* GPEs: Check for and dispatch any GPEs that have occurred */
+
+ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
+ return_UINT32(interrupt_handled);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ev_install_sci_handler
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Installs SCI handler.
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_install_sci_handler(void)
+{
+ u32 status = AE_OK;
+
+ ACPI_FUNCTION_TRACE(ev_install_sci_handler);
+
+ status =
+ acpi_os_install_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
+ acpi_ev_sci_xrupt_handler,
+ acpi_gbl_gpe_xrupt_list_head);
+ return_ACPI_STATUS(status);
+}
+
+/******************************************************************************
+ *
+ * FUNCTION: acpi_ev_remove_all_sci_handlers
+ *
+ * PARAMETERS: none
+ *
+ * RETURN: AE_OK if handler uninstalled, AE_ERROR if handler was not
+ * installed to begin with
+ *
+ * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
+ * taken. Remove all host-installed SCI handlers.
+ *
+ * Note: It doesn't seem important to disable all events or set the event
+ * enable registers to their original values. The OS should disable
+ * the SCI interrupt level when the handler is removed, so no more
+ * events will come in.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_ev_remove_all_sci_handlers(void)
+{
+ struct acpi_sci_handler_info *sci_handler;
+ acpi_cpu_flags flags;
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(ev_remove_all_sci_handlers);
+
+ /* Just let the OS remove the handler and disable the level */
+
+ status =
+ acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
+ acpi_ev_sci_xrupt_handler);
+
+ if (!acpi_gbl_sci_handler_list) {
+ return (status);
+ }
+
+ flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+ /* Free all host-installed SCI handlers */
+
+ while (acpi_gbl_sci_handler_list) {
+ sci_handler = acpi_gbl_sci_handler_list;
+ acpi_gbl_sci_handler_list = sci_handler->next;
+ ACPI_FREE(sci_handler);
+ }
+
+ acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+ return_ACPI_STATUS(status);
+}
+
+#endif /* !ACPI_REDUCED_HARDWARE */