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// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
/*
*
* (C) COPYRIGHT 2014-2023 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
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#include "backend/gpu/mali_kbase_cache_policy_backend.h"
#include <device/mali_kbase_device.h>
void kbase_cache_set_coherency_mode(struct kbase_device *kbdev, u32 mode)
{
kbdev->current_gpu_coherency_mode = mode;
#if MALI_USE_CSF
if (kbdev->gpu_props.gpu_id.arch_id >= GPU_ID_ARCH_MAKE(12, 0, 1)) {
/* AMBA_ENABLE present from 12.0.1 */
u32 val = kbase_reg_read32(kbdev, GPU_CONTROL_ENUM(AMBA_ENABLE));
val = AMBA_ENABLE_COHERENCY_PROTOCOL_SET(val, mode);
kbase_reg_write32(kbdev, GPU_CONTROL_ENUM(AMBA_ENABLE), val);
} else {
/* Fallback to COHERENCY_ENABLE for older versions */
kbase_reg_write32(kbdev, GPU_CONTROL_ENUM(COHERENCY_ENABLE), mode);
}
#else /* MALI_USE_CSF */
kbase_reg_write32(kbdev, GPU_CONTROL_ENUM(COHERENCY_ENABLE), mode);
#endif /* MALI_USE_CSF */
}
void kbase_amba_set_shareable_cache_support(struct kbase_device *kbdev)
{
#if MALI_USE_CSF
/* AMBA registers only present from 12.0.1 */
if (kbdev->gpu_props.gpu_id.arch_id < GPU_ID_ARCH_MAKE(12, 0, 1))
return;
if (kbdev->system_coherency != COHERENCY_NONE) {
u32 val = kbase_reg_read32(kbdev, GPU_CONTROL_ENUM(AMBA_FEATURES));
if (AMBA_FEATURES_SHAREABLE_CACHE_SUPPORT_GET(val)) {
val = kbase_reg_read32(kbdev, GPU_CONTROL_ENUM(AMBA_ENABLE));
val = AMBA_ENABLE_SHAREABLE_CACHE_SUPPORT_SET(val, 1);
kbase_reg_write32(kbdev, GPU_CONTROL_ENUM(AMBA_ENABLE), val);
}
}
#endif /* MALI_USE_CSF */
}
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