From 6778948f9de86c3cfaf36725a7c87dcff9ba247f Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 11 Dec 2023 08:20:59 +0000
Subject: [PATCH] kernel_5.10 no rt
---
kernel/drivers/gpu/arm/bifrost/mmu/mali_kbase_mmu_hw.h | 133 +++++++++++++++++++++++++++++++++++++++-----
1 files changed, 118 insertions(+), 15 deletions(-)
diff --git a/kernel/drivers/gpu/arm/bifrost/mmu/mali_kbase_mmu_hw.h b/kernel/drivers/gpu/arm/bifrost/mmu/mali_kbase_mmu_hw.h
index d1f1ff2..50d2ea5 100644
--- a/kernel/drivers/gpu/arm/bifrost/mmu/mali_kbase_mmu_hw.h
+++ b/kernel/drivers/gpu/arm/bifrost/mmu/mali_kbase_mmu_hw.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
*
- * (C) COPYRIGHT 2014-2015, 2018-2021 ARM Limited. All rights reserved.
+ * (C) COPYRIGHT 2014-2015, 2018-2022 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
@@ -31,6 +31,8 @@
#ifndef _KBASE_MMU_HW_H_
#define _KBASE_MMU_HW_H_
+#include "mali_kbase_mmu.h"
+
/* Forward declarations */
struct kbase_device;
struct kbase_as;
@@ -53,6 +55,25 @@
};
/**
+ * struct kbase_mmu_hw_op_param - parameters for kbase_mmu_hw_do_* functions
+ * @vpfn: MMU Virtual Page Frame Number to start the operation on.
+ * @nr: Number of pages to work on.
+ * @op: Operation type (written to ASn_COMMAND).
+ * @kctx_id: Kernel context ID for MMU command tracepoint.
+ * @mmu_sync_info: Indicates whether this call is synchronous wrt MMU ops.
+ * @flush_skip_levels: Page table levels to skip flushing. (Only
+ * applicable if GPU supports feature)
+ */
+struct kbase_mmu_hw_op_param {
+ u64 vpfn;
+ u32 nr;
+ enum kbase_mmu_op_type op;
+ u32 kctx_id;
+ enum kbase_caller_mmu_sync_info mmu_sync_info;
+ u64 flush_skip_levels;
+};
+
+/**
* kbase_mmu_hw_configure - Configure an address space for use.
* @kbdev: kbase device to configure.
* @as: address space to configure.
@@ -64,23 +85,105 @@
struct kbase_as *as);
/**
- * kbase_mmu_hw_do_operation - Issue an operation to the MMU.
- * @kbdev: kbase device to issue the MMU operation on.
- * @as: address space to issue the MMU operation on.
- * @vpfn: MMU Virtual Page Frame Number to start the operation on.
- * @nr: Number of pages to work on.
- * @type: Operation type (written to ASn_COMMAND).
- * @handling_irq: Is this operation being called during the handling
- * of an interrupt?
+ * kbase_mmu_hw_do_lock - Issue LOCK command to the MMU and program
+ * the LOCKADDR register.
*
- * Issue an operation (MMU invalidate, MMU flush, etc) on the address space that
- * is associated with the provided kbase_context over the specified range
+ * @kbdev: Kbase device to issue the MMU operation on.
+ * @as: Address space to issue the MMU operation on.
+ * @op_param: Pointer to struct containing information about the MMU
+ * operation to perform.
*
- * Return: Zero if the operation was successful, non-zero otherwise.
+ * hwaccess_lock needs to be held when calling this function.
+ *
+ * Return: 0 if issuing the command was successful, otherwise an error code.
*/
-int kbase_mmu_hw_do_operation(struct kbase_device *kbdev, struct kbase_as *as,
- u64 vpfn, u32 nr, u32 type,
- unsigned int handling_irq);
+int kbase_mmu_hw_do_lock(struct kbase_device *kbdev, struct kbase_as *as,
+ const struct kbase_mmu_hw_op_param *op_param);
+
+/**
+ * kbase_mmu_hw_do_unlock_no_addr - Issue UNLOCK command to the MMU without
+ * programming the LOCKADDR register and wait
+ * for it to complete before returning.
+ *
+ * @kbdev: Kbase device to issue the MMU operation on.
+ * @as: Address space to issue the MMU operation on.
+ * @op_param: Pointer to struct containing information about the MMU
+ * operation to perform.
+ *
+ * This function should be called for GPU where GPU command is used to flush
+ * the cache(s) instead of MMU command.
+ *
+ * Return: 0 if issuing the command was successful, otherwise an error code.
+ */
+int kbase_mmu_hw_do_unlock_no_addr(struct kbase_device *kbdev, struct kbase_as *as,
+ const struct kbase_mmu_hw_op_param *op_param);
+
+/**
+ * kbase_mmu_hw_do_unlock - Issue UNLOCK command to the MMU and wait for it
+ * to complete before returning.
+ *
+ * @kbdev: Kbase device to issue the MMU operation on.
+ * @as: Address space to issue the MMU operation on.
+ * @op_param: Pointer to struct containing information about the MMU
+ * operation to perform.
+ *
+ * Return: 0 if issuing the command was successful, otherwise an error code.
+ */
+int kbase_mmu_hw_do_unlock(struct kbase_device *kbdev, struct kbase_as *as,
+ const struct kbase_mmu_hw_op_param *op_param);
+/**
+ * kbase_mmu_hw_do_flush - Issue a flush operation to the MMU.
+ *
+ * @kbdev: Kbase device to issue the MMU operation on.
+ * @as: Address space to issue the MMU operation on.
+ * @op_param: Pointer to struct containing information about the MMU
+ * operation to perform.
+ *
+ * Issue a flush operation on the address space as per the information
+ * specified inside @op_param. This function should not be called for
+ * GPUs where MMU command to flush the cache(s) is deprecated.
+ * mmu_hw_mutex needs to be held when calling this function.
+ *
+ * Return: 0 if the operation was successful, non-zero otherwise.
+ */
+int kbase_mmu_hw_do_flush(struct kbase_device *kbdev, struct kbase_as *as,
+ const struct kbase_mmu_hw_op_param *op_param);
+
+/**
+ * kbase_mmu_hw_do_flush_locked - Issue a flush operation to the MMU.
+ *
+ * @kbdev: Kbase device to issue the MMU operation on.
+ * @as: Address space to issue the MMU operation on.
+ * @op_param: Pointer to struct containing information about the MMU
+ * operation to perform.
+ *
+ * Issue a flush operation on the address space as per the information
+ * specified inside @op_param. This function should not be called for
+ * GPUs where MMU command to flush the cache(s) is deprecated.
+ * Both mmu_hw_mutex and hwaccess_lock need to be held when calling this
+ * function.
+ *
+ * Return: 0 if the operation was successful, non-zero otherwise.
+ */
+int kbase_mmu_hw_do_flush_locked(struct kbase_device *kbdev, struct kbase_as *as,
+ const struct kbase_mmu_hw_op_param *op_param);
+
+/**
+ * kbase_mmu_hw_do_flush_on_gpu_ctrl - Issue a flush operation to the MMU.
+ *
+ * @kbdev: Kbase device to issue the MMU operation on.
+ * @as: Address space to issue the MMU operation on.
+ * @op_param: Pointer to struct containing information about the MMU
+ * operation to perform.
+ *
+ * Issue a flush operation on the address space as per the information
+ * specified inside @op_param. GPU command is used to flush the cache(s)
+ * instead of the MMU command.
+ *
+ * Return: 0 if the operation was successful, non-zero otherwise.
+ */
+int kbase_mmu_hw_do_flush_on_gpu_ctrl(struct kbase_device *kbdev, struct kbase_as *as,
+ const struct kbase_mmu_hw_op_param *op_param);
/**
* kbase_mmu_hw_clear_fault - Clear a fault that has been previously reported by
--
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