lkml.org 
[lkml]   [2020]   [Jan]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 5.4 072/191] drm/amdgpu/smu: add metrics table lock
Date
From: Alex Deucher <alexander.deucher@amd.com>

commit 073d5eef9e043c2b7e3ef12bc6c879b1d248e831 upstream.

This table is used for lots of things, add it's own lock.

Bug: https://gitlab.freedesktop.org/drm/amd/issues/900
Reviewed-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 1 +
drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 1 +
2 files changed, 2 insertions(+)

--- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c
@@ -844,6 +844,7 @@ static int smu_sw_init(void *handle)
smu->smu_baco.platform_support = false;

mutex_init(&smu->sensor_lock);
+ mutex_init(&smu->metrics_lock);

smu->watermarks_bitmap = 0;
smu->power_profile_mode = PP_SMC_POWER_PROFILE_BOOTUP_DEFAULT;
--- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h
@@ -345,6 +345,7 @@ struct smu_context
const struct pptable_funcs *ppt_funcs;
struct mutex mutex;
struct mutex sensor_lock;
+ struct mutex metrics_lock;
uint64_t pool_size;

struct smu_table_context smu_table;

\
 
 \ /
  Last update: 2020-01-07 22:00    [W:0.542 / U:0.336 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site