183 lines
4 KiB
C
183 lines
4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#include "mtk_drm_trace.h"
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#include <linux/trace_events.h>
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#include <linux/kallsyms.h>
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#include <linux/kernel.h>
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#include "mtk_drm_ddp_comp.h"
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#include "mtk_drm_crtc.h"
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#include "mtk_drm_helper.h"
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#include "mtk_drm_drv.h"
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#ifdef DRM_MMPATH
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#include "mmpath.h"
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#endif
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#define MTK_DRM_TRACE_MSG_LEN 1024
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static noinline int mtk_drm_tracing_mark_write(const char *buf)
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{
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trace_puts(buf);
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return 0;
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}
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void mtk_drm_print_trace(char *fmt, ...)
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{
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char buf[MTK_DRM_TRACE_MSG_LEN];
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va_list args;
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int len;
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va_start(args, fmt);
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len = vsnprintf(buf, sizeof(buf), fmt, args);
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va_end(args);
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if (len >= MTK_DRM_TRACE_MSG_LEN) {
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DDPPR_ERR("%s, string size %u exceed limit\n", __func__, len);
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return;
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}
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mtk_drm_tracing_mark_write(buf);
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}
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void drm_trace_tag_start(const char *tag)
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{
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mtk_drm_print_trace("C|%d|%s|%d\n", DRM_TRACE_ID, tag, 1);
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}
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void drm_trace_tag_end(const char *tag)
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{
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mtk_drm_print_trace("C|%d|%s|%d\n", DRM_TRACE_ID, tag, 0);
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}
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void drm_trace_tag_mark(const char *tag)
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{
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mtk_drm_print_trace("C|%d|%s|%d\n", DRM_TRACE_ID, tag, 1);
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mtk_drm_print_trace("C|%d|%s|%d\n", DRM_TRACE_ID, tag, 0);
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}
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void mtk_drm_refresh_tag_start(struct mtk_ddp_comp *ddp_comp)
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{
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int crtc_idx;
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struct mtk_drm_crtc *mtk_crtc = ddp_comp->mtk_crtc;
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if (!mtk_crtc)
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return;
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crtc_idx = drm_crtc_index(&mtk_crtc->base);
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mtk_drm_trace_c("%d|DISP:CRTC-%d-Refresh|%d",
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hwc_pid, crtc_idx, 1);
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}
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void mtk_drm_refresh_tag_end(struct mtk_ddp_comp *ddp_comp)
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{
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int crtc_idx;
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struct mtk_drm_crtc *mtk_crtc = ddp_comp->mtk_crtc;
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if (!mtk_crtc)
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return;
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crtc_idx = drm_crtc_index(&mtk_crtc->base);
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mtk_drm_trace_c("%d|DISP:CRTC-%d-Refresh|%d",
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hwc_pid, crtc_idx, 0);
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}
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void mtk_drm_default_tag(struct mtk_ddp_comp *ddp_comp, const char *tag, enum TRACE_PATTERN pat)
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{
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struct mtk_drm_crtc *mtk_crtc = ddp_comp->mtk_crtc;
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if (!mtk_crtc)
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return;
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if (pat == TRACE_MARK) {
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mtk_drm_trace_default("%d|%s|%d", hwc_pid, tag, 1);
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mtk_drm_trace_default("%d|%s|%d", hwc_pid, tag, 0);
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} else {
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mtk_drm_trace_default("%d|%s|%d", hwc_pid, tag, pat);
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}
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}
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#ifdef DRM_MMPATH
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int get_HWC_gpid(struct mtk_ddp_comp *ddp_comp)
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{
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struct drm_crtc *crtc = &ddp_comp->mtk_crtc->base;
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struct mtk_drm_private *priv = crtc->dev->dev_private;
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return priv->HWC_gpid;
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}
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void MMPathTraceOVL2DSI(struct mtk_ddp_comp *ddp_comp)
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{
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char str[1300] = "";
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int strlen = sizeof(str), n = 0;
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n += scnprintf(str + n, strlen - n,
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"hw=DISP_OVL0, pid=%d, ", get_HWC_gpid(ddp_comp));
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n = MMPathTraceCrtcPlanes(&ddp_comp->mtk_crtc->base, str, strlen, n);
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n += scnprintf(str + n, strlen - n, "out=DISP_DSI");
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trace_MMPath(str);
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}
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void MMPathTraceRDMA2DSI(struct mtk_ddp_comp *ddp_comp)
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{
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char str[1300] = "";
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int strlen = sizeof(str), n = 0;
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n += scnprintf(str + n, strlen - n,
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"hw=DISP_RDMA0, pid=%d, ", get_HWC_gpid(ddp_comp));
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n = MMPathTraceRDMA(ddp_comp, str, strlen, n);
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n += scnprintf(str + n, strlen - n, "out=DISP_DSI");
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trace_MMPath(str);
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}
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void MMPathTraceOVL2WDMA(struct mtk_ddp_comp *ddp_comp)
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{
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char str[1300] = "";
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int strlen = sizeof(str), n = 0;
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if (drm_crtc_index(&ddp_comp->mtk_crtc->base) == 0)
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n += scnprintf(str + n, strlen - n,
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"hw=DISP_OVL0, pid=%d, ", get_HWC_gpid(ddp_comp));
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else
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n += scnprintf(str + n, strlen - n,
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"hw=DISP_OVL1, pid=%d, ", get_HWC_gpid(ddp_comp));
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n = MMPathTraceCrtcPlanes(&ddp_comp->mtk_crtc->base, str, strlen, n);
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n = MMPathTraceWDMA(ddp_comp, str, strlen, n);
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trace_MMPath(str);
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}
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void MMPathTraceDRM(struct mtk_ddp_comp *ddp_comp)
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{
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struct drm_crtc *crtc = &ddp_comp->mtk_crtc->base;
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struct mtk_drm_private *priv = crtc->dev->dev_private;
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if (mtk_drm_helper_get_opt(priv->helper_opt, MTK_DRM_OPT_MMPATH) == 0)
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return;
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if (ddp_comp->id == DDP_COMPONENT_RDMA0) {
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if (mtk_crtc_is_dc_mode(crtc) == 0)
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MMPathTraceOVL2DSI(ddp_comp);
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else
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MMPathTraceRDMA2DSI(ddp_comp);
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} else if (ddp_comp->id == DDP_COMPONENT_WDMA0)
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MMPathTraceOVL2WDMA(ddp_comp);
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}
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#else
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void MMPathTraceDRM(struct mtk_ddp_comp *ddp_comp)
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{
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}
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#endif
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