From patchwork Wed Sep 13 18:55:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Umang Jain X-Patchwork-Id: 13383691 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED921EE0209 for ; Wed, 13 Sep 2023 18:56:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232130AbjIMS4G (ORCPT ); Wed, 13 Sep 2023 14:56:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36810 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232110AbjIMS4C (ORCPT ); Wed, 13 Sep 2023 14:56:02 -0400 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 08C931BC8; Wed, 13 Sep 2023 11:55:56 -0700 (PDT) Received: from umang.jainideasonboard.com (unknown [103.86.18.170]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id DAABA16B7; Wed, 13 Sep 2023 20:54:19 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1694631262; bh=L0upyMq5KvigoJ6XJrk1cf19j/Vpyur21d7pDWLxZQc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SywyAGeP2WGuUducxARZeBlVH7E+Ymdhjje3s9tFqcUfTNf5xjM2UBuyrgjMX3a1x +KXyVXMHeFtBnysaGu0ZvWzqVMYKCe0wZ0rvR0N2F5kf2pwb2ebv8Zh8gdwlLIiZWd pizDNhaIlR7vEwsywZy/ux6gP+MJG6b3CrneKPm8= From: Umang Jain To: linux-staging@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, linux-media@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Stefan Wahren , Greg Kroah-Hartman , Florian Fainelli , Adrien Thierry , Dan Carpenter , Dave Stevenson , Kieran Bingham , Laurent Pinchart , Phil Elwell , Umang Jain Subject: [RFC PATCH v2 4/4] staging: vc04: Convert vchiq_log_trace() to use dynamic debug Date: Thu, 14 Sep 2023 00:25:28 +0530 Message-Id: <20230913185528.770634-5-umang.jain@ideasonboard.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230913185528.770634-1-umang.jain@ideasonboard.com> References: <20230913185528.770634-1-umang.jain@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org As part of ongoing series i.e. moving away from printk based logging to dynamic debug logging mechanism, this patch converts vchiq_log_trace() wrapper to use dynamic debug. The log category is dictated by enum vchiq_log_category which will become the part of the warning string format that will be logged to dynamic debug (for easier grep). All the vchiq_log_trace() calls are adjusted to use the modified wrapper. vchiq_log_dump_mem() doesn't seem to fit with vchiq_log_trace(), Add a TODO marker to discuss whether or not, this should be debugfs entry only. Signed-off-by: Umang Jain --- .../interface/vchiq_arm/vchiq_arm.c | 45 ++++++++++------- .../interface/vchiq_arm/vchiq_core.c | 50 +++++++++++-------- .../interface/vchiq_arm/vchiq_core.h | 5 +- .../interface/vchiq_arm/vchiq_dev.c | 4 +- 4 files changed, 61 insertions(+), 43 deletions(-) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c index a7da2f15d5d4..fa3316b10767 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c @@ -252,7 +252,8 @@ create_pagelist(struct vchiq_instance *instance, char *buf, char __user *ubuf, pagelist = dma_alloc_coherent(instance->state->dev, pagelist_size, &dma_addr, GFP_KERNEL); - vchiq_log_trace(vchiq_arm_log_level, "%s - %pK", __func__, pagelist); + vchiq_log_trace(instance->state->dev, VCHIQ_ARM, + "%s - %pK", __func__, pagelist); if (!pagelist) return NULL; @@ -403,8 +404,8 @@ free_pagelist(struct vchiq_instance *instance, struct vchiq_pagelist_info *pagel struct page **pages = pagelistinfo->pages; unsigned int num_pages = pagelistinfo->num_pages; - vchiq_log_trace(vchiq_arm_log_level, "%s - %pK, %d", - __func__, pagelistinfo->pagelist, actual); + vchiq_log_trace(instance->state->dev, VCHIQ_ARM, + "%s - %pK, %d", __func__, pagelistinfo->pagelist, actual); /* * NOTE: dma_unmap_sg must be called before the @@ -709,7 +710,8 @@ int vchiq_initialise(struct vchiq_instance **instance_out) ret = 0; failed: - vchiq_log_trace(vchiq_core_log_level, "%s(%p): returning %d", __func__, instance, ret); + vchiq_log_trace(state->dev, VCHIQ_CORE, + "%s(%p): returning %d", __func__, instance, ret); return ret; } @@ -742,7 +744,8 @@ int vchiq_shutdown(struct vchiq_instance *instance) mutex_unlock(&state->mutex); - vchiq_log_trace(vchiq_core_log_level, "%s(%p): returning %d", __func__, instance, status); + vchiq_log_trace(state->dev, VCHIQ_CORE, + "%s(%p): returning %d", __func__, instance, status); free_bulk_waiter(instance); kfree(instance); @@ -762,7 +765,8 @@ int vchiq_connect(struct vchiq_instance *instance) struct vchiq_state *state = instance->state; if (mutex_lock_killable(&state->mutex)) { - vchiq_log_trace(vchiq_core_log_level, "%s: call to mutex_lock failed", __func__); + vchiq_log_trace(state->dev, VCHIQ_CORE, + "%s: call to mutex_lock failed", __func__); status = -EAGAIN; goto failed; } @@ -774,7 +778,8 @@ int vchiq_connect(struct vchiq_instance *instance) mutex_unlock(&state->mutex); failed: - vchiq_log_trace(vchiq_core_log_level, "%s(%p): returning %d", __func__, instance, status); + vchiq_log_trace(state->dev, VCHIQ_CORE, + "%s(%p): returning %d", __func__, instance, status); return status; } @@ -805,7 +810,8 @@ vchiq_add_service(struct vchiq_instance *instance, status = -EINVAL; } - vchiq_log_trace(vchiq_core_log_level, "%s(%p): returning %d", __func__, instance, status); + vchiq_log_trace(state->dev, VCHIQ_CORE, + "%s(%p): returning %d", __func__, instance, status); return status; } @@ -836,7 +842,8 @@ vchiq_open_service(struct vchiq_instance *instance, } failed: - vchiq_log_trace(vchiq_core_log_level, "%s(%p): returning %d", __func__, instance, status); + vchiq_log_trace(state->dev, VCHIQ_CORE, + "%s(%p): returning %d", __func__, instance, status); return status; } @@ -1006,7 +1013,8 @@ add_completion(struct vchiq_instance *instance, enum vchiq_reason reason, while ((insert - instance->completion_remove) >= MAX_COMPLETIONS) { /* Out of space - wait for the client */ DEBUG_TRACE(SERVICE_CALLBACK_LINE); - vchiq_log_trace(vchiq_arm_log_level, "%s - completion queue full", __func__); + vchiq_log_trace(instance->state->dev, VCHIQ_CORE, + "%s - completion queue full", __func__); DEBUG_COUNT(COMPLETION_QUEUE_FULL_COUNT); if (wait_for_completion_interruptible(&instance->remove_event)) { vchiq_log_info(instance->state->dev, VCHIQ_ARM, @@ -1094,7 +1102,7 @@ service_callback(struct vchiq_instance *instance, enum vchiq_reason reason, vchiq_service_get(service); rcu_read_unlock(); - vchiq_log_trace(vchiq_arm_log_level, + vchiq_log_trace(service->state->dev, VCHIQ_ARM, "%s - service %lx(%d,%p), reason %d, header %lx, instance %lx, bulk_userdata %lx", __func__, (unsigned long)user_service, service->localport, user_service->userdata, reason, (unsigned long)header, @@ -1107,7 +1115,8 @@ service_callback(struct vchiq_instance *instance, enum vchiq_reason reason, spin_unlock(&msg_queue_spinlock); DEBUG_TRACE(SERVICE_CALLBACK_LINE); DEBUG_COUNT(MSG_QUEUE_FULL_COUNT); - vchiq_log_trace(vchiq_arm_log_level, "%s - msg queue full", __func__); + vchiq_log_trace(service->state->dev, VCHIQ_ARM, + "%s - msg queue full", __func__); /* * If there is no MESSAGE_AVAILABLE in the completion * queue, add one @@ -1455,8 +1464,8 @@ vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service, local_uc = ++arm_state->videocore_use_count; ++(*entity_uc); - vchiq_log_trace(vchiq_susp_log_level, "%s %s count %d, state count %d", __func__, entity, - *entity_uc, local_uc); + vchiq_log_trace(state->dev, VCHIQ_SUSPEND, "%s %s count %d, state count %d", + __func__, entity, *entity_uc, local_uc); write_unlock_bh(&arm_state->susp_res_lock); @@ -1475,7 +1484,7 @@ vchiq_use_internal(struct vchiq_state *state, struct vchiq_service *service, } out: - vchiq_log_trace(vchiq_susp_log_level, "%s exit %d", __func__, ret); + vchiq_log_trace(state->dev, VCHIQ_SUSPEND, "%s exit %d", __func__, ret); return ret; } @@ -1513,14 +1522,14 @@ vchiq_release_internal(struct vchiq_state *state, struct vchiq_service *service) --arm_state->videocore_use_count; --(*entity_uc); - vchiq_log_trace(vchiq_susp_log_level, "%s %s count %d, state count %d", __func__, entity, - *entity_uc, arm_state->videocore_use_count); + vchiq_log_trace(state->dev, VCHIQ_SUSPEND, "%s %s count %d, state count %d", + __func__, entity, *entity_uc, arm_state->videocore_use_count); unlock: write_unlock_bh(&arm_state->susp_res_lock); out: - vchiq_log_trace(vchiq_susp_log_level, "%s exit %d", __func__, ret); + vchiq_log_trace(state->dev, VCHIQ_SUSPEND, "%s exit %d", __func__, ret); return ret; } diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c index 2e92853b9a4b..550ce7062145 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c @@ -467,7 +467,7 @@ make_service_callback(struct vchiq_service *service, enum vchiq_reason reason, { int status; - vchiq_log_trace(vchiq_core_log_level, "%d: callback:%d (%s, %pK, %pK)", + vchiq_log_trace(service->state->dev, VCHIQ_CORE, "%d: callback:%d (%s, %pK, %pK)", service->state->id, service->localport, reason_names[reason], header, bulk_userdata); status = service->base.callback(service->instance, reason, header, service->handle, @@ -771,7 +771,7 @@ process_free_data_message(struct vchiq_state *state, u32 *service_found, * it has dropped below its quota */ complete("a->quota_event); - vchiq_log_trace(vchiq_core_log_level, "%d: pfq:%d %x@%pK - slot_use->%d", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: pfq:%d %x@%pK - slot_use->%d", state->id, port, header->size, header, count - 1); } else { vchiq_log_error(state->dev, VCHIQ_CORE, @@ -817,7 +817,7 @@ process_free_queue(struct vchiq_state *state, u32 *service_found, */ rmb(); - vchiq_log_trace(vchiq_core_log_level, "%d: pfq %d=%pK %x %x", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: pfq %d=%pK %x %x", state->id, slot_index, data, local->slot_queue_recycle, slot_queue_available); @@ -988,7 +988,7 @@ queue_message(struct vchiq_state *state, struct vchiq_service *service, ((tx_end_index != quota->previous_tx_index) && (quota->slot_use_count == quota->slot_quota))) { spin_unlock("a_spinlock); - vchiq_log_trace(vchiq_core_log_level, + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: qm:%d %s,%zx - quota stall (msg %d, slot %d)", state->id, service->localport, msg_type_str(type), size, quota->message_use_count, quota->slot_use_count); @@ -1083,7 +1083,7 @@ queue_message(struct vchiq_state *state, struct vchiq_service *service, spin_unlock("a_spinlock); if (slot_use_count) - vchiq_log_trace(vchiq_core_log_level, + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: qm:%d %s,%zx - slot_use->%d (hdr %p)", state->id, service->localport, msg_type_str(VCHIQ_MSG_TYPE(msgid)), size, slot_use_count, header); @@ -1220,7 +1220,7 @@ queue_message_sync(struct vchiq_state *state, struct vchiq_service *service, ? service->base.fourcc : VCHIQ_MAKE_FOURCC('?', '?', '?', '?'); - vchiq_log_trace(vchiq_sync_log_level, + vchiq_log_trace(state->dev, VCHIQ_SYNC, "Sent Sync Msg %s(%u) to %c%c%c%c s:%u d:%d len:%d", msg_type_str(VCHIQ_MSG_TYPE(msgid)), VCHIQ_MSG_TYPE(msgid), VCHIQ_FOURCC_AS_4CHARS(svc_fourcc), VCHIQ_MSG_SRCPORT(msgid), @@ -1314,8 +1314,10 @@ notify_bulks(struct vchiq_service *service, struct vchiq_bulk_queue *queue, { int status = 0; - vchiq_log_trace(vchiq_core_log_level, "%d: nb:%d %cx - p=%x rn=%x r=%x", service->state->id, - service->localport, (queue == &service->bulk_tx) ? 't' : 'r', + vchiq_log_trace(service->state->dev, VCHIQ_CORE, + "%d: nb:%d %cx - p=%x rn=%x r=%x", + service->state->id, service->localport, + (queue == &service->bulk_tx) ? 't' : 'r', queue->process, queue->remote_notify, queue->remove); queue->remote_notify = queue->process; @@ -1440,9 +1442,11 @@ abort_outstanding_bulks(struct vchiq_service *service, { int is_tx = (queue == &service->bulk_tx); - vchiq_log_trace(vchiq_core_log_level, "%d: aob:%d %cx - li=%x ri=%x p=%x", - service->state->id, service->localport, is_tx ? 't' : 'r', - queue->local_insert, queue->remote_insert, queue->process); + vchiq_log_trace(service->state->dev, VCHIQ_CORE, + "%d: aob:%d %cx - li=%x ri=%x p=%x", + service->state->id, service->localport, + is_tx ? 't' : 'r', queue->local_insert, + queue->remote_insert, queue->process); WARN_ON((int)(queue->local_insert - queue->process) < 0); WARN_ON((int)(queue->remote_insert - queue->process) < 0); @@ -1780,7 +1784,7 @@ parse_message(struct vchiq_state *state, struct vchiq_header *header) state->id, msg_type_str(type), header, remoteport, localport, bulk->actual, &bulk->data); - vchiq_log_trace(vchiq_core_log_level, "%d: prs:%d %cx li=%x ri=%x p=%x", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: prs:%d %cx li=%x ri=%x p=%x", state->id, localport, (type == VCHIQ_MSG_BULK_RX_DONE) ? 'r' : 't', queue->local_insert, queue->remote_insert, queue->process); @@ -1796,12 +1800,12 @@ parse_message(struct vchiq_state *state, struct vchiq_header *header) } break; case VCHIQ_MSG_PADDING: - vchiq_log_trace(vchiq_core_log_level, "%d: prs PADDING@%pK,%x", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: prs PADDING@%pK,%x", state->id, header, size); break; case VCHIQ_MSG_PAUSE: /* If initiated, signal the application thread */ - vchiq_log_trace(vchiq_core_log_level, "%d: prs PAUSE@%pK,%x", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: prs PAUSE@%pK,%x", state->id, header, size); if (state->conn_state == VCHIQ_CONNSTATE_PAUSED) { vchiq_log_error(state->dev, VCHIQ_CORE, "%d: PAUSE received in state PAUSED", @@ -1818,7 +1822,7 @@ parse_message(struct vchiq_state *state, struct vchiq_header *header) vchiq_set_conn_state(state, VCHIQ_CONNSTATE_PAUSED); break; case VCHIQ_MSG_RESUME: - vchiq_log_trace(vchiq_core_log_level, "%d: prs RESUME@%pK,%x", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: prs RESUME@%pK,%x", state->id, header, size); /* Release the slot mutex */ mutex_unlock(&state->slot_mutex); @@ -2059,7 +2063,7 @@ sync_func(void *v) svc_fourcc = service ? service->base.fourcc : VCHIQ_MAKE_FOURCC('?', '?', '?', '?'); - vchiq_log_trace(vchiq_sync_log_level, + vchiq_log_trace(state->dev, VCHIQ_SYNC, "Rcvd Msg %s from %c%c%c%c s:%d d:%d len:%d", msg_type_str(type), VCHIQ_FOURCC_AS_4CHARS(svc_fourcc), remoteport, localport, size); @@ -2088,7 +2092,7 @@ sync_func(void *v) break; case VCHIQ_MSG_DATA: - vchiq_log_trace(vchiq_sync_log_level, "%d: sf DATA@%pK,%x (%d->%d)", + vchiq_log_trace(state->dev, VCHIQ_SYNC, "%d: sf DATA@%pK,%x (%d->%d)", state->id, header, size, remoteport, localport); if ((service->remoteport == remoteport) && @@ -3130,7 +3134,7 @@ int vchiq_bulk_transfer(struct vchiq_instance *instance, unsigned int handle, mutex_unlock(&state->slot_mutex); mutex_unlock(&service->bulk_mutex); - vchiq_log_trace(vchiq_core_log_level, "%d: bt:%d %cx li=%x ri=%x p=%x", + vchiq_log_trace(state->dev, VCHIQ_CORE, "%d: bt:%d %cx li=%x ri=%x p=%x", state->id, service->localport, dir_char, queue->local_insert, queue->remote_insert, queue->process); @@ -3666,10 +3670,16 @@ void vchiq_log_dump_mem(const char *label, u32 addr, const void *void_mem, size_ } *s++ = '\0'; + /* TODO: Since this is memory dump, it is better suited as debugfs entry only + * and prevent it from getting in dynamic debug log? + * + * In any case, some suggestions are required here. + * Convert to pr_debug() for now. + */ if (label && (*label != '\0')) - vchiq_log_trace(VCHIQ_LOG_TRACE, "%s: %08x: %s", label, addr, line_buf); + pr_debug("%s: %08x: %s", label, addr, line_buf); else - vchiq_log_trace(VCHIQ_LOG_TRACE, "%08x: %s", addr, line_buf); + pr_debug("%08x: %s", addr, line_buf); addr += 16; mem += 16; diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h index 07ce55afb6cf..c6e40bfc0a23 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h @@ -73,9 +73,8 @@ static inline const char *log_category_str(enum vchiq_log_category c) dev_dbg(dev, "%s info: " fmt, log_category_str(cat), ##__VA_ARGS__); #endif #ifndef vchiq_log_trace -#define vchiq_log_trace(cat, fmt, ...) \ - do { if (cat >= VCHIQ_LOG_TRACE) \ - printk(VCHIQ_LOG_PREFIX fmt "\n", ##__VA_ARGS__); } while (0) +#define vchiq_log_trace(dev, cat, fmt, ...) \ + dev_dbg(dev, "%s trace: " fmt, log_category_str(cat), ##__VA_ARGS__); #endif #define VCHIQ_SLOT_MASK (VCHIQ_SLOT_SIZE - 1) diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c index c525051f460e..922f4c5a10c1 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_dev.c @@ -582,7 +582,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) long ret = 0; int i, rc; - vchiq_log_trace(vchiq_arm_log_level, + vchiq_log_trace(instance->state->dev, VCHIQ_ARM, "%s - instance %pK, cmd %s, arg %lx", __func__, instance, ((_IOC_TYPE(cmd) == VCHIQ_IOC_MAGIC) && (_IOC_NR(cmd) <= VCHIQ_IOC_MAX)) ? ioctl_names[_IOC_NR(cmd)] : "", arg); @@ -874,7 +874,7 @@ vchiq_ioctl(struct file *file, unsigned int cmd, unsigned long arg) instance, (_IOC_NR(cmd) <= VCHIQ_IOC_MAX) ? ioctl_names[_IOC_NR(cmd)] : "", status, ret); } else { - vchiq_log_trace(vchiq_arm_log_level, + vchiq_log_trace(service->state->dev, VCHIQ_ARM, " ioctl instance %pK, cmd %s -> status %d, %ld", instance, (_IOC_NR(cmd) <= VCHIQ_IOC_MAX) ? ioctl_names[_IOC_NR(cmd)] : "", status, ret);