+++ /dev/null
-/*
- * mmu_fault.c
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * Implements DSP MMU fault handling functions.
- *
- * Copyright (C) 2005-2006 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-/* ----------------------------------- DSP/BIOS Bridge */
-#include <dspbridge/std.h>
-#include <dspbridge/dbdefs.h>
-
-/* ----------------------------------- Trace & Debug */
-#include <dspbridge/host_os.h>
-#include <dspbridge/dbc.h>
-
-/* ----------------------------------- OS Adaptation Layer */
-#include <dspbridge/drv.h>
-
-/* ----------------------------------- Link Driver */
-#include <dspbridge/dspdeh.h>
-
-/* ------------------------------------ Hardware Abstraction Layer */
-#include <hw_defs.h>
-#include <hw_mmu.h>
-
-/* ----------------------------------- This */
-#include "_deh.h"
-#include <dspbridge/cfg.h>
-#include "_tiomap.h"
-#include "mmu_fault.h"
-
-/*
- * ======== mmu_fault_dpc ========
- * Deferred procedure call to handle DSP MMU fault.
- */
-void mmu_fault_dpc(IN unsigned long pRefData)
-{
- struct deh_mgr *hdeh_mgr = (struct deh_mgr *)pRefData;
-
- if (!hdeh_mgr)
- return;
-
- bridge_deh_notify(hdeh_mgr, DSP_MMUFAULT, 0L);
-}
-
-/*
- * ======== mmu_fault_isr ========
- * ISR to be triggered by a DSP MMU fault interrupt.
- */
-irqreturn_t mmu_fault_isr(int irq, IN void *pRefData)
-{
- struct deh_mgr *deh_mgr_obj = pRefData;
- struct cfg_hostres *resources;
- u32 dmmu_event_mask;
-
- if (!deh_mgr_obj)
- return IRQ_HANDLED;
-
- resources = deh_mgr_obj->hbridge_context->resources;
- if (!resources) {
- dev_dbg(bridge, "%s: Failed to get Host Resources\n",
- __func__);
- return IRQ_HANDLED;
- }
-
- hw_mmu_event_status(resources->dw_dmmu_base, &dmmu_event_mask);
- if (dmmu_event_mask == HW_MMU_TRANSLATION_FAULT) {
- hw_mmu_fault_addr_read(resources->dw_dmmu_base, &deh_mgr_obj->fault_addr);
- dev_info(bridge, "%s: status=0x%x, fault_addr=0x%x\n", __func__,
- dmmu_event_mask, deh_mgr_obj->fault_addr);
- /*
- * Schedule a DPC directly. In the future, it may be
- * necessary to check if DSP MMU fault is intended for
- * Bridge.
- */
- tasklet_schedule(&deh_mgr_obj->dpc_tasklet);
-
- /* Disable the MMU events, else once we clear it will
- * start to raise INTs again */
- hw_mmu_event_disable(resources->dw_dmmu_base,
- HW_MMU_TRANSLATION_FAULT);
- } else {
- hw_mmu_event_disable(resources->dw_dmmu_base,
- HW_MMU_ALL_INTERRUPTS);
- }
- return IRQ_HANDLED;
-}
+++ /dev/null
-/*
- * mmu_fault.h
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * Defines DSP MMU fault handling functions.
- *
- * Copyright (C) 2005-2006 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#ifndef MMU_FAULT_
-#define MMU_FAULT_
-
-/*
- * ======== mmu_fault_dpc ========
- * Deferred procedure call to handle DSP MMU fault.
- */
-void mmu_fault_dpc(IN unsigned long pRefData);
-
-/*
- * ======== mmu_fault_isr ========
- * ISR to be triggered by a DSP MMU fault interrupt.
- */
-irqreturn_t mmu_fault_isr(int irq, IN void *pRefData);
-
-#endif /* MMU_FAULT_ */
#include <hw_mmu.h>
/* ----------------------------------- This */
-#include "mmu_fault.h"
#include "_tiomap.h"
#include "_deh.h"
#include "_tiomap_pwr.h"
#include <dspbridge/io_sm.h>
+static void mmu_fault_dpc(unsigned long data)
+{
+ struct deh_mgr *hdeh_mgr = (void *)data;
+
+ if (!hdeh_mgr)
+ return;
+
+ bridge_deh_notify(hdeh_mgr, DSP_MMUFAULT, 0);
+}
+
+static irqreturn_t mmu_fault_isr(int irq, void *data)
+{
+ struct deh_mgr *deh_mgr_obj = data;
+ struct cfg_hostres *resources;
+ u32 dmmu_event_mask;
+
+ if (!deh_mgr_obj)
+ return IRQ_HANDLED;
+
+ resources = deh_mgr_obj->hbridge_context->resources;
+ if (!resources) {
+ dev_dbg(bridge, "%s: Failed to get Host Resources\n",
+ __func__);
+ return IRQ_HANDLED;
+ }
+
+ hw_mmu_event_status(resources->dw_dmmu_base, &dmmu_event_mask);
+ if (dmmu_event_mask == HW_MMU_TRANSLATION_FAULT) {
+ hw_mmu_fault_addr_read(resources->dw_dmmu_base, &deh_mgr_obj->fault_addr);
+ dev_info(bridge, "%s: status=0x%x, fault_addr=0x%x\n", __func__,
+ dmmu_event_mask, deh_mgr_obj->fault_addr);
+ /*
+ * Schedule a DPC directly. In the future, it may be
+ * necessary to check if DSP MMU fault is intended for
+ * Bridge.
+ */
+ tasklet_schedule(&deh_mgr_obj->dpc_tasklet);
+
+ /* Disable the MMU events, else once we clear it will
+ * start to raise INTs again */
+ hw_mmu_event_disable(resources->dw_dmmu_base,
+ HW_MMU_TRANSLATION_FAULT);
+ } else {
+ hw_mmu_event_disable(resources->dw_dmmu_base,
+ HW_MMU_ALL_INTERRUPTS);
+ }
+ return IRQ_HANDLED;
+}
+
int bridge_deh_create(struct deh_mgr **ret_deh_mgr,
struct dev_object *hdev_obj)
{
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff