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e5758850c2
Due to HW limitations, MDP3 is necessary to enable MUTEX in each frame for SOF triggering and cooperate with CMDQ control to reduce the amount of interrupts generated(also, reduce frame latency). In response to the above situation, a new interface "mtk_mutex_enable_by_cmdq" has been added to achieve the purpose. Signed-off-by: Moudy Ho <moudy.ho@mediatek.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by: Rex-BC Chen <rex-bc.chen@mediatek.com> Reviewed-by: CK Hu <ck.hu@mediatek.com> Link: https://lore.kernel.org/r/20220610063424.7800-7-moudy.ho@mediatek.com Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2015 MediaTek Inc.
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*/
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#ifndef MTK_MUTEX_H
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#define MTK_MUTEX_H
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struct regmap;
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struct device;
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struct mtk_mutex;
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enum mtk_mutex_mod_index {
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/* MDP table index */
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MUTEX_MOD_IDX_MDP_RDMA0,
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MUTEX_MOD_IDX_MDP_RSZ0,
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MUTEX_MOD_IDX_MDP_RSZ1,
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MUTEX_MOD_IDX_MDP_TDSHP0,
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MUTEX_MOD_IDX_MDP_WROT0,
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MUTEX_MOD_IDX_MDP_WDMA,
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MUTEX_MOD_IDX_MDP_AAL0,
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MUTEX_MOD_IDX_MDP_CCORR0,
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MUTEX_MOD_IDX_MAX /* ALWAYS keep at the end */
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};
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enum mtk_mutex_sof_index {
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MUTEX_SOF_IDX_SINGLE_MODE,
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MUTEX_SOF_IDX_MAX /* ALWAYS keep at the end */
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};
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struct mtk_mutex *mtk_mutex_get(struct device *dev);
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int mtk_mutex_prepare(struct mtk_mutex *mutex);
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void mtk_mutex_add_comp(struct mtk_mutex *mutex,
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enum mtk_ddp_comp_id id);
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void mtk_mutex_enable(struct mtk_mutex *mutex);
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int mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex,
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void *pkt);
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void mtk_mutex_disable(struct mtk_mutex *mutex);
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void mtk_mutex_remove_comp(struct mtk_mutex *mutex,
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enum mtk_ddp_comp_id id);
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void mtk_mutex_unprepare(struct mtk_mutex *mutex);
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void mtk_mutex_put(struct mtk_mutex *mutex);
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void mtk_mutex_acquire(struct mtk_mutex *mutex);
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void mtk_mutex_release(struct mtk_mutex *mutex);
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int mtk_mutex_write_mod(struct mtk_mutex *mutex,
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enum mtk_mutex_mod_index idx,
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bool clear);
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int mtk_mutex_write_sof(struct mtk_mutex *mutex,
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enum mtk_mutex_sof_index idx);
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#endif /* MTK_MUTEX_H */
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