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From fff3b6983608a0e513eb2e874325827207e3f485 Mon Sep 17 00:00:00 2001
From: Felix Kuehling <Felix.Kuehling@amd.com>
Date: Wed, 25 Apr 2018 17:53:13 -0400
Subject: [PATCH 4287/5725] drm/amdkfd: Fix pm_debugfs_runlist
Guard it with #if defined(CONFIG_DEBUG_FS) and take the pm->lock while
dumping the runlist IB.
Change-Id: If52078d2003c34b44e8f19996c0263d6211dea13
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Kalyan Alle <kalyan.alle@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
index c6f3218..cd380ad 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_packet_manager.c
@@ -400,17 +400,25 @@ void pm_release_ib(struct packet_manager *pm)
mutex_unlock(&pm->lock);
}
+#if defined(CONFIG_DEBUG_FS)
+
int pm_debugfs_runlist(struct seq_file *m, void *data)
{
struct packet_manager *pm = data;
+ mutex_lock(&pm->lock);
+
if (!pm->allocated) {
seq_puts(m, " No active runlist\n");
- return 0;
+ goto out;
}
seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
pm->ib_buffer_obj->cpu_ptr, pm->ib_size_bytes, false);
+out:
+ mutex_unlock(&pm->lock);
return 0;
}
+
+#endif
--
2.7.4
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