From 04dd17822334871b23ea2862f7798fb0e0007777 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 11 May 2024 08:53:19 +0000
Subject: [PATCH] change otg to host mode
---
kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c | 36 ++++++++++++++++++++++++++++++++++++
1 files changed, 36 insertions(+), 0 deletions(-)
diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c
index 36de23d..dd92203 100644
--- a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/timer/base.c
@@ -23,6 +23,42 @@
*/
#include "priv.h"
+s64
+nvkm_timer_wait_test(struct nvkm_timer_wait *wait)
+{
+ struct nvkm_subdev *subdev = &wait->tmr->subdev;
+ u64 time = nvkm_timer_read(wait->tmr);
+
+ if (wait->reads == 0) {
+ wait->time0 = time;
+ wait->time1 = time;
+ }
+
+ if (wait->time1 == time) {
+ if (wait->reads++ == 16) {
+ nvkm_fatal(subdev, "stalled at %016llx\n", time);
+ return -ETIMEDOUT;
+ }
+ } else {
+ wait->time1 = time;
+ wait->reads = 1;
+ }
+
+ if (wait->time1 - wait->time0 > wait->limit)
+ return -ETIMEDOUT;
+
+ return wait->time1 - wait->time0;
+}
+
+void
+nvkm_timer_wait_init(struct nvkm_device *device, u64 nsec,
+ struct nvkm_timer_wait *wait)
+{
+ wait->tmr = device->timer;
+ wait->limit = nsec;
+ wait->reads = 0;
+}
+
u64
nvkm_timer_read(struct nvkm_timer *tmr)
{
--
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