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Lin" , Singo Chang , Nancy Lin , Moudy Ho , Xavier Chang , Subject: [PATCH v2 6/8] soc: mediatek: Add programming flow for unsupported subsys ID hardware Date: Wed, 11 Dec 2024 11:22:54 +0800 Message-ID: <20241211032256.28494-7-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20241211032256.28494-1-jason-jh.lin@mediatek.com> References: <20241211032256.28494-1-jason-jh.lin@mediatek.com> MIME-Version: 1.0 X-TM-AS-Product-Ver: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-AS-Result: No-10--6.341800-8.000000 X-TMASE-MatchedRID: wDTc/wNgEcNYXTxImR5ZvBes/RxhysDbu56wFPSkMVEs/uUAk6xP7PlY oV6p/cSxrKWVhE5vxYb5CFR3bPuHIixDojmF3AkddAg4yd14qAThKQh1LCmGBjb9TB28Ubkiz1r LcNpRkyiTFmqgSxbocJ9vpuXVh9T3HxPMjOKY7A8LbigRnpKlKSPzRlrdFGDw70DvyaD6XnZqRZ ljJQ6IE4pKEUj+UU0L4qutW8oZlIcWM7ewxYxMMg== X-TM-AS-User-Approved-Sender: No X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--6.341800-8.000000 X-TMASE-Version: SMEX-14.0.0.3152-9.1.1006-23728.005 X-TM-SNTS-SMTP: 5D7B39F7E5620480764DF7006E5915F7D7D095FAA3FB6039B2710A021656D7A22000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241210_192309_274067_85B3A1E8 X-CRM114-Status: GOOD ( 13.09 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org To support hardware without subsys IDs on new SoCs, add a programming flow that checks whether the subsys ID is valid. If the subsys ID is invalid, the flow will call 2 alternative CMDQ APIs: cmdq_pkt_assign() and cmdq_pkt_write_s_value() to achieve the same functionality. Signed-off-by: Jason-JH.Lin --- drivers/soc/mediatek/mtk-mmsys.c | 16 +++++++++++++--- drivers/soc/mediatek/mtk-mutex.c | 12 ++++++++++-- 2 files changed, 23 insertions(+), 5 deletions(-) diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c index bb4639ca0b8c..fbf97ae9dc28 100644 --- a/drivers/soc/mediatek/mtk-mmsys.c +++ b/drivers/soc/mediatek/mtk-mmsys.c @@ -167,9 +167,19 @@ static void mtk_mmsys_update_bits(struct mtk_mmsys *mmsys, u32 offset, u32 mask, u32 tmp; if (mmsys->cmdq_base.size && cmdq_pkt) { - ret = cmdq_pkt_write_mask(cmdq_pkt, mmsys->cmdq_base.subsys, - mmsys->cmdq_base.offset + offset, val, - mask); + struct cmdq_client *cl = (struct cmdq_client *)cmdq_pkt->cl; + + offset += mmsys->cmdq_base.offset; + if (cmdq_subsys_is_valid(cl->chan, mmsys->cmdq_base.subsys)) { + ret = cmdq_pkt_write_mask(cmdq_pkt, mmsys->cmdq_base.subsys, + offset, val, mask); + } else { + /* only MMIO access, no need to check mminfro_offset */ + ret = cmdq_pkt_assign(cmdq_pkt, 0, + CMDQ_ADDR_HIGH(mmsys->cmdq_base.pa_base)); + ret |= cmdq_pkt_write_s_mask_value(cmdq_pkt, 0, + CMDQ_ADDR_LOW(offset), val, mask); + } if (ret) pr_debug("CMDQ unavailable: using CPU write\n"); else diff --git a/drivers/soc/mediatek/mtk-mutex.c b/drivers/soc/mediatek/mtk-mutex.c index 5250c1d702eb..e94df5b783ce 100644 --- a/drivers/soc/mediatek/mtk-mutex.c +++ b/drivers/soc/mediatek/mtk-mutex.c @@ -963,6 +963,8 @@ int mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, void *pkt) struct mtk_mutex_ctx *mtx = container_of(mutex, struct mtk_mutex_ctx, mutex[mutex->id]); struct cmdq_pkt *cmdq_pkt = (struct cmdq_pkt *)pkt; + struct cmdq_client *cl = (struct cmdq_client *)cmdq_pkt->cl; + dma_addr_t en_addr = mtx->addr + DISP_REG_MUTEX_EN(mutex->id); WARN_ON(&mtx->mutex[mutex->id] != mutex); @@ -971,8 +973,14 @@ int mtk_mutex_enable_by_cmdq(struct mtk_mutex *mutex, void *pkt) return -ENODEV; } - cmdq_pkt_write(cmdq_pkt, mtx->cmdq_reg.subsys, - mtx->addr + DISP_REG_MUTEX_EN(mutex->id), 1); + if (cmdq_subsys_is_valid(cl->chan, mtx->cmdq_reg.subsys)) { + cmdq_pkt_write(cmdq_pkt, mtx->cmdq_reg.subsys, en_addr, 1); + } else { + /* only MMIO access, no need to check mminfro_offset */ + cmdq_pkt_assign(cmdq_pkt, 0, CMDQ_ADDR_HIGH(en_addr)); + cmdq_pkt_write_s_value(cmdq_pkt, 0, CMDQ_ADDR_LOW(en_addr), 1); + } + return 0; } EXPORT_SYMBOL_GPL(mtk_mutex_enable_by_cmdq);