From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FBC6C49EA3 for ; Thu, 17 Jun 2021 14:09:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7695F613EF for ; Thu, 17 Jun 2021 14:09:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231417AbhFQOLY (ORCPT ); Thu, 17 Jun 2021 10:11:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231345AbhFQOLX (ORCPT ); Thu, 17 Jun 2021 10:11:23 -0400 Received: from mail-lf1-x130.google.com (mail-lf1-x130.google.com [IPv6:2a00:1450:4864:20::130]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B244CC061574 for ; Thu, 17 Jun 2021 07:09:15 -0700 (PDT) Received: by mail-lf1-x130.google.com with SMTP id x24so10730275lfr.10 for ; Thu, 17 Jun 2021 07:09:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=ohafdZMD93z0T1nAFWI/eeGOu8zBpwsaEHdxkL5H5hs=; b=LBHVvctJnDBpWBqFfPQNZvK0t2sXQ+Q3tidWwHDBn/qT5zcIz7v7XZACISNLektChy fa86Tn8In4mYc9XO7Z0msq4FGAJALRRdQLiq7GRgy79wHxl3h6l/luJiBPEGj2Gatfvd z7iaVTPPFOKmWr47HTlna9j64XfvV27eR+QTE/7x+qONIwxUerluiJIyvSf342u2vTgX 0e2YDzCh/9UClShA/Bzbv2AxSL+PCbWezJkZq7AP1QXMzxtKujcf1FGxRIB/4XOynJz5 B2hxbtm7S93zSrBzMn1TtoIAXGRalEvmA9UClDU77H6Uu+2Vj2lIGuGNxqo8VjJhgwNL XzSw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=ohafdZMD93z0T1nAFWI/eeGOu8zBpwsaEHdxkL5H5hs=; b=jkwUmN0JvLfE359zjfHXGyWtH3EZcQA7M8Hf6DZK9FXeGCXzCXPqJYGTlD5nmxTdvy 1D7BSeoTkpvf8CNrqo/BrSR6WPkymCjsIUDBQvA1FphN72wTtJLYzt2IOhpcQChAbCTx SvWXdliWWwnUvz1/QSH7d05uArCN4I+0oZvdd0acJGNvdOKtOLQ3TF34iLAd5X4D9ez0 7CB4tKsnGPtlZIQ3VxLLnE6V3lfiQG5vmXWzYie/lOL1rEshVUPRvVh0CpAYlwrR61ZO K9EtPZFJ46OVdzXBXE3oDu8ngPire8sNwpSQHfTp/RI4q+R++BplPCakSBasKqhyFIuK Q+ug== X-Gm-Message-State: AOAM533PM8A6p9K/82p5XO5K80VxiQu9Us0GTgRbTGSWIcrd71ZjGElL 7coySf+NO2bvyXyv1WxScHSMHA== X-Google-Smtp-Source: ABdhPJz35SujFyVO/YYgflPXgzJ7yj9aJZtAWo28FtMvqAvaN+Ooqsj4QlCeb9tA1w2SeHIRabGH8g== X-Received: by 2002:ac2:55ba:: with SMTP id y26mr4073545lfg.416.1623938953943; Thu, 17 Jun 2021 07:09:13 -0700 (PDT) Received: from eriador.lan ([37.153.55.125]) by smtp.gmail.com with ESMTPSA id f23sm592471lfm.128.2021.06.17.07.09.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Jun 2021 07:09:13 -0700 (PDT) From: Dmitry Baryshkov To: Bjorn Andersson , Rob Clark , Sean Paul , Abhinav Kumar Cc: Jonathan Marek , Stephen Boyd , David Airlie , Daniel Vetter , linux-arm-msm@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org Subject: [PATCH 4/7] drm/msm/dpu: hide struct dpu_irq_callback Date: Thu, 17 Jun 2021 17:09:05 +0300 Message-Id: <20210617140908.412298-5-dmitry.baryshkov@linaro.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210617140908.412298-1-dmitry.baryshkov@linaro.org> References: <20210617140908.412298-1-dmitry.baryshkov@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org The struct dpu_irq_callbacks looks internal to IRQ handling code. Hide it from the rest of the DPU driver. Signed-off-by: Dmitry Baryshkov --- drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h | 18 +++--- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 6 +- .../gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h | 2 +- .../drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c | 10 ++- .../drm/msm/disp/dpu1/dpu_encoder_phys_vid.c | 6 +- .../gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c | 62 ++++++++++++++----- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h | 12 ---- drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h | 8 +-- 8 files changed, 69 insertions(+), 55 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h index 90ae6c9ccc95..44ab97fb2964 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_irq.h @@ -46,10 +46,8 @@ u32 dpu_core_irq_read( * interrupt * @dpu_kms: DPU handle * @irq_idx: irq index - * @irq_cb: IRQ callback structure, containing callback function - * and argument. Passing NULL for irq_cb will unregister - * the callback for the given irq_idx - * This must exist until un-registration. + * @irq_cb: IRQ callback funcion. + * @irq_arg: IRQ callback argument. * @return: 0 for success registering callback, otherwise failure * * This function supports registration of multiple callbacks for each interrupt. @@ -57,17 +55,16 @@ u32 dpu_core_irq_read( int dpu_core_irq_register_callback( struct dpu_kms *dpu_kms, int irq_idx, - struct dpu_irq_callback *irq_cb); + void (*irq_cb)(void *arg, int irq_idx), + void *irq_arg); /** * dpu_core_irq_unregister_callback - For unregistering callback function on IRQ * interrupt * @dpu_kms: DPU handle * @irq_idx: irq index - * @irq_cb: IRQ callback structure, containing callback function - * and argument. Passing NULL for irq_cb will unregister - * the callback for the given irq_idx - * This must match with registration. + * @irq_cb: IRQ callback funcion. + * @irq_arg: IRQ callback argument. * @return: 0 for success registering callback, otherwise failure * * This function supports registration of multiple callbacks for each interrupt. @@ -75,7 +72,8 @@ int dpu_core_irq_register_callback( int dpu_core_irq_unregister_callback( struct dpu_kms *dpu_kms, int irq_idx, - struct dpu_irq_callback *irq_cb); + void (*irq_cb)(void *arg, int irq_idx), + void *irq_arg); /** * dpu_debugfs_core_irq_init - register core irq debugfs diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index 7f06238a7c64..186b2f87d193 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -310,7 +310,7 @@ int dpu_encoder_helper_wait_for_irq(struct dpu_encoder_phys *phys_enc, phys_enc->hw_pp->idx - PINGPONG_0, atomic_read(wait_info->atomic_cnt)); local_irq_save(flags); - irq->cb.func(phys_enc, irq->irq_idx); + irq->func(phys_enc, irq->irq_idx); local_irq_restore(flags); ret = 0; } else { @@ -352,7 +352,7 @@ int dpu_encoder_helper_register_irq(struct dpu_encoder_phys *phys_enc, } ret = dpu_core_irq_register_callback(phys_enc->dpu_kms, irq->irq_idx, - &irq->cb); + irq->func, phys_enc); if (ret) { DPU_ERROR_PHYS(phys_enc, "failed to register IRQ callback for %s\n", @@ -384,7 +384,7 @@ int dpu_encoder_helper_unregister_irq(struct dpu_encoder_phys *phys_enc, } ret = dpu_core_irq_unregister_callback(phys_enc->dpu_kms, irq->irq_idx, - &irq->cb); + irq->func, phys_enc); if (ret) { DRM_ERROR("unreg cb fail id=%u, intr=%d, irq=%d ret=%d", DRMID(phys_enc->parent), intr_idx, diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h index e7270eb6b84b..80d87871fd94 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys.h @@ -174,7 +174,7 @@ struct dpu_encoder_irq { const char *name; enum dpu_intr_idx intr_idx; int irq_idx; - struct dpu_irq_callback cb; + void (*func)(void *arg, int irq_idx); }; /** diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c index dba1219c6f1b..dbc8f0811dd1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c @@ -786,30 +786,28 @@ struct dpu_encoder_phys *dpu_encoder_phys_cmd_init( phys_enc->enable_state = DPU_ENC_DISABLED; for (i = 0; i < INTR_IDX_MAX; i++) { irq = &phys_enc->irq[i]; - INIT_LIST_HEAD(&irq->cb.list); irq->irq_idx = -EINVAL; - irq->cb.arg = phys_enc; } irq = &phys_enc->irq[INTR_IDX_CTL_START]; irq->name = "ctl_start"; irq->intr_idx = INTR_IDX_CTL_START; - irq->cb.func = dpu_encoder_phys_cmd_ctl_start_irq; + irq->func = dpu_encoder_phys_cmd_ctl_start_irq; irq = &phys_enc->irq[INTR_IDX_PINGPONG]; irq->name = "pp_done"; irq->intr_idx = INTR_IDX_PINGPONG; - irq->cb.func = dpu_encoder_phys_cmd_pp_tx_done_irq; + irq->func = dpu_encoder_phys_cmd_pp_tx_done_irq; irq = &phys_enc->irq[INTR_IDX_RDPTR]; irq->name = "pp_rd_ptr"; irq->intr_idx = INTR_IDX_RDPTR; - irq->cb.func = dpu_encoder_phys_cmd_pp_rd_ptr_irq; + irq->func = dpu_encoder_phys_cmd_pp_rd_ptr_irq; irq = &phys_enc->irq[INTR_IDX_UNDERRUN]; irq->name = "underrun"; irq->intr_idx = INTR_IDX_UNDERRUN; - irq->cb.func = dpu_encoder_phys_cmd_underrun_irq; + irq->func = dpu_encoder_phys_cmd_underrun_irq; atomic_set(&phys_enc->vblank_refcount, 0); atomic_set(&phys_enc->pending_kickoff_cnt, 0); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c index 391b13b99c01..21722cdfaaf7 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_vid.c @@ -728,20 +728,18 @@ struct dpu_encoder_phys *dpu_encoder_phys_vid_init( phys_enc->enc_spinlock = p->enc_spinlock; for (i = 0; i < INTR_IDX_MAX; i++) { irq = &phys_enc->irq[i]; - INIT_LIST_HEAD(&irq->cb.list); irq->irq_idx = -EINVAL; - irq->cb.arg = phys_enc; } irq = &phys_enc->irq[INTR_IDX_VSYNC]; irq->name = "vsync_irq"; irq->intr_idx = INTR_IDX_VSYNC; - irq->cb.func = dpu_encoder_phys_vid_vblank_irq; + irq->func = dpu_encoder_phys_vid_vblank_irq; irq = &phys_enc->irq[INTR_IDX_UNDERRUN]; irq->name = "underrun"; irq->intr_idx = INTR_IDX_UNDERRUN; - irq->cb.func = dpu_encoder_phys_vid_underrun_irq; + irq->func = dpu_encoder_phys_vid_underrun_irq; atomic_set(&phys_enc->vblank_refcount, 0); atomic_set(&phys_enc->pending_kickoff_cnt, 0); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c index e5dce884e7c0..73a20fc5c766 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_interrupts.c @@ -32,6 +32,18 @@ #define MDP_INTF_1_OFF_REV_7xxx 0x35000 #define MDP_INTF_5_OFF_REV_7xxx 0x39000 +/* + * struct dpu_irq_callback - IRQ callback handlers + * @list: list to callback + * @func: intr handler + * @arg: argument for the handler + */ +struct dpu_irq_callback { + struct list_head list; + void (*func)(void *arg, int irq_idx); + void *arg; +}; + /** * struct dpu_intr_reg - array of DPU register sets * @clr_off: offset to CLEAR reg @@ -428,20 +440,19 @@ void dpu_hw_intr_destroy(struct dpu_hw_intr *intr) } int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx, - struct dpu_irq_callback *register_irq_cb) + void (*irq_cb)(void *arg, int irq_idx), + void *irq_arg) { unsigned long irq_flags; + struct dpu_irq_callback *register_irq_cb; if (!dpu_kms->hw_intr->irq_cb_tbl) { DPU_ERROR("invalid params\n"); return -EINVAL; } - if (!register_irq_cb || !register_irq_cb->func) { - DPU_ERROR("invalid irq_cb:%d func:%d\n", - register_irq_cb != NULL, - register_irq_cb ? - register_irq_cb->func != NULL : -1); + if (!irq_cb) { + DPU_ERROR("invalid ird_idx:%d irq_cb:%ps\n", irq_idx, irq_cb); return -EINVAL; } @@ -452,9 +463,16 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx, DPU_DEBUG("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx); + register_irq_cb = kzalloc(sizeof(*register_irq_cb), GFP_KERNEL); + if (!register_irq_cb) + return -ENOMEM; + + INIT_LIST_HEAD(®ister_irq_cb->list); + register_irq_cb->func = irq_cb; + register_irq_cb->arg = irq_arg; + spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags); trace_dpu_core_irq_register_callback(irq_idx, register_irq_cb); - list_del_init(®ister_irq_cb->list); list_add_tail(®ister_irq_cb->list, &dpu_kms->hw_intr->irq_cb_tbl[irq_idx]); if (list_is_first(®ister_irq_cb->list, @@ -472,20 +490,19 @@ int dpu_core_irq_register_callback(struct dpu_kms *dpu_kms, int irq_idx, } int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx, - struct dpu_irq_callback *register_irq_cb) + void (*irq_cb)(void *arg, int irq_idx), + void *irq_arg) { unsigned long irq_flags; + struct dpu_irq_callback *entry, *register_irq_cb = NULL; if (!dpu_kms->hw_intr->irq_cb_tbl) { DPU_ERROR("invalid params\n"); return -EINVAL; } - if (!register_irq_cb || !register_irq_cb->func) { - DPU_ERROR("invalid irq_cb:%d func:%d\n", - register_irq_cb != NULL, - register_irq_cb ? - register_irq_cb->func != NULL : -1); + if (!irq_cb) { + DPU_ERROR("invalid ird_idx:%d irq_cb:%ps\n", irq_idx, irq_cb); return -EINVAL; } @@ -497,8 +514,23 @@ int dpu_core_irq_unregister_callback(struct dpu_kms *dpu_kms, int irq_idx, DPU_DEBUG("[%pS] irq_idx=%d\n", __builtin_return_address(0), irq_idx); spin_lock_irqsave(&dpu_kms->hw_intr->irq_lock, irq_flags); - trace_dpu_core_irq_unregister_callback(irq_idx, register_irq_cb); - list_del_init(®ister_irq_cb->list); + trace_dpu_core_irq_unregister_callback(irq_idx, irq_cb); + list_for_each_entry(entry, &dpu_kms->hw_intr->irq_cb_tbl[irq_idx], list) { + if (entry->func != irq_cb || entry->arg != irq_arg) + continue; + + register_irq_cb = entry; + break; + } + + if (WARN_ON(!register_irq_cb)) { + spin_unlock_irqrestore(&dpu_kms->hw_intr->irq_lock, irq_flags); + return -EINVAL; + } + + list_del(®ister_irq_cb->list); + kfree(register_irq_cb); + /* empty callback list but interrupt is still enabled */ if (list_empty(&dpu_kms->hw_intr->irq_cb_tbl[irq_idx])) { int ret = dpu_hw_intr_disable_irq_locked( diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h index f261c5afc6ac..624ccf977694 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.h @@ -66,18 +66,6 @@ #define DPU_NAME_SIZE 12 -/* - * struct dpu_irq_callback - IRQ callback handlers - * @list: list to callback - * @func: intr handler - * @arg: argument for the handler - */ -struct dpu_irq_callback { - struct list_head list; - void (*func)(void *arg, int irq_idx); - void *arg; -}; - struct dpu_kms { struct msm_kms base; struct drm_device *dev; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h index 37bba57675a8..d0b04e2668d1 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_trace.h @@ -876,7 +876,7 @@ TRACE_EVENT(dpu_pp_connect_ext_te, ); DECLARE_EVENT_CLASS(dpu_core_irq_callback_template, - TP_PROTO(int irq_idx, struct dpu_irq_callback *callback), + TP_PROTO(int irq_idx, void *callback), TP_ARGS(irq_idx, callback), TP_STRUCT__entry( __field( int, irq_idx ) @@ -886,15 +886,15 @@ DECLARE_EVENT_CLASS(dpu_core_irq_callback_template, __entry->irq_idx = irq_idx; __entry->callback = callback; ), - TP_printk("irq_idx:%d callback:%pK", __entry->irq_idx, + TP_printk("irq_idx:%d callback:%ps", __entry->irq_idx, __entry->callback) ); DEFINE_EVENT(dpu_core_irq_callback_template, dpu_core_irq_register_callback, - TP_PROTO(int irq_idx, struct dpu_irq_callback *callback), + TP_PROTO(int irq_idx, void *callback), TP_ARGS(irq_idx, callback) ); DEFINE_EVENT(dpu_core_irq_callback_template, dpu_core_irq_unregister_callback, - TP_PROTO(int irq_idx, struct dpu_irq_callback *callback), + TP_PROTO(int irq_idx, void *callback), TP_ARGS(irq_idx, callback) ); -- 2.30.2