// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
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/*
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*
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* (C) COPYRIGHT 2020-2022 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU license.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you can access it online at
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* http://www.gnu.org/licenses/gpl-2.0.html.
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*
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*/
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#include <mali_kbase.h>
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#include "debug/mali_kbase_debug_ktrace_internal.h"
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#include "debug/backend/mali_kbase_debug_ktrace_csf.h"
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#if KBASE_KTRACE_TARGET_RBUF
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void kbasep_ktrace_backend_format_header(char *buffer, int sz, s32 *written)
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{
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*written += MAX(snprintf(buffer + *written, MAX(sz - *written, 0),
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"group,slot,prio,csi,kcpu"), 0);
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}
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void kbasep_ktrace_backend_format_msg(struct kbase_ktrace_msg *trace_msg,
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char *buffer, int sz, s32 *written)
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{
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const union kbase_ktrace_backend * const be_msg = &trace_msg->backend;
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/* At present, no need to check for KBASE_KTRACE_FLAG_BACKEND, as the
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* other backend-specific flags currently imply this anyway
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*/
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/* group parts */
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if (be_msg->gpu.flags & KBASE_KTRACE_FLAG_CSF_GROUP) {
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const s8 slot = be_msg->gpu.csg_nr;
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/* group,slot, */
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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"%u,%d,", be_msg->gpu.group_handle, slot), 0);
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/* prio */
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if (slot >= 0)
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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"%u", be_msg->gpu.slot_prio), 0);
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/* , */
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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","), 0);
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} else {
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/* No group,slot,prio fields, but ensure ending with "," */
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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",,,"), 0);
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}
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/* queue parts: csi */
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if (trace_msg->backend.gpu.flags & KBASE_KTRACE_FLAG_CSF_QUEUE)
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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"%d", be_msg->gpu.csi_index), 0);
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/* , */
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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","), 0);
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if (be_msg->gpu.flags & KBASE_KTRACE_FLAG_CSF_KCPU) {
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/* kcpu data */
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*written += MAX(snprintf(buffer + *written,
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MAX(sz - *written, 0),
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"kcpu %d (0x%llx)",
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be_msg->kcpu.id,
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be_msg->kcpu.extra_info_val), 0);
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}
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/* Don't end with a trailing "," - this is a 'standalone' formatted
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* msg, caller will handle the delimiters
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*/
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}
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void kbasep_ktrace_add_csf(struct kbase_device *kbdev,
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enum kbase_ktrace_code code, struct kbase_queue_group *group,
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struct kbase_queue *queue, kbase_ktrace_flag_t flags,
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u64 info_val)
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{
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unsigned long irqflags;
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struct kbase_ktrace_msg *trace_msg;
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struct kbase_context *kctx = NULL;
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if (unlikely(!kbasep_ktrace_initialized(&kbdev->ktrace)))
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return;
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spin_lock_irqsave(&kbdev->ktrace.lock, irqflags);
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/* Reserve and update indices */
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trace_msg = kbasep_ktrace_reserve(&kbdev->ktrace);
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/* Determine the kctx */
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if (group)
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kctx = group->kctx;
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else if (queue)
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kctx = queue->kctx;
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/* Fill the common part of the message (including backend.gpu.flags) */
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kbasep_ktrace_msg_init(&kbdev->ktrace, trace_msg, code, kctx, flags,
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info_val);
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/* Indicate to the common code that backend-specific parts will be
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* valid
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*/
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trace_msg->backend.gpu.flags |= KBASE_KTRACE_FLAG_BACKEND;
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/* Fill the CSF-specific parts of the message
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*
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* Generally, no need to use default initializers when queue/group not
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* present - can usually check the flags instead.
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*/
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if (queue) {
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trace_msg->backend.gpu.flags |= KBASE_KTRACE_FLAG_CSF_QUEUE;
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trace_msg->backend.gpu.csi_index = queue->csi_index;
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}
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if (group) {
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const s8 slot = group->csg_nr;
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trace_msg->backend.gpu.flags |= KBASE_KTRACE_FLAG_CSF_GROUP;
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trace_msg->backend.gpu.csg_nr = slot;
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if (slot >= 0) {
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struct kbase_csf_csg_slot *csg_slot =
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&kbdev->csf.scheduler.csg_slots[slot];
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trace_msg->backend.gpu.slot_prio =
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csg_slot->priority;
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}
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/* slot >=0 indicates whether slot_prio valid, so no need to
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* initialize in the case where it's invalid
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*/
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trace_msg->backend.gpu.group_handle = group->handle;
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}
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WARN_ON((trace_msg->backend.gpu.flags & ~KBASE_KTRACE_FLAG_ALL));
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/* Done */
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spin_unlock_irqrestore(&kbdev->ktrace.lock, irqflags);
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}
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void kbasep_ktrace_add_csf_kcpu(struct kbase_device *kbdev,
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enum kbase_ktrace_code code,
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struct kbase_kcpu_command_queue *queue,
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u64 info_val1, u64 info_val2)
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{
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unsigned long irqflags;
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struct kbase_ktrace_msg *trace_msg;
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struct kbase_context *kctx = queue->kctx;
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if (unlikely(!kbasep_ktrace_initialized(&kbdev->ktrace)))
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return;
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spin_lock_irqsave(&kbdev->ktrace.lock, irqflags);
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/* Reserve and update indices */
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trace_msg = kbasep_ktrace_reserve(&kbdev->ktrace);
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/* Fill the common part of the message */
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kbasep_ktrace_msg_init(&kbdev->ktrace, trace_msg, code, kctx, 0,
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info_val1);
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/* Indicate to the common code that backend-specific parts will be
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* valid
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*/
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trace_msg->backend.gpu.flags |= KBASE_KTRACE_FLAG_BACKEND;
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/* Fill the KCPU-specific parts of the message */
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trace_msg->backend.kcpu.id = queue->id;
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trace_msg->backend.kcpu.extra_info_val = info_val2;
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trace_msg->backend.gpu.flags |= KBASE_KTRACE_FLAG_CSF_KCPU;
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WARN_ON((trace_msg->backend.gpu.flags & ~KBASE_KTRACE_FLAG_ALL));
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/* Done */
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spin_unlock_irqrestore(&kbdev->ktrace.lock, irqflags);
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}
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#endif /* KBASE_KTRACE_TARGET_RBUF */
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