current/SOURCES/drm-amd-pm-smu13-baco-is-supported-when-it-s-in-baco-state.patch

From 972fb53d3605eb6cdf0d6ae9a52e910626a91ff7 Mon Sep 17 00:00:00 2001
From: Guchun Chen <guchun.chen@amd.com>
Date: Tue, 10 Jan 2023 11:33:44 +0800
Subject: drm/amd/pm/smu13: BACO is supported when it's in BACO state

From: Guchun Chen <guchun.chen@amd.com>

commit 972fb53d3605eb6cdf0d6ae9a52e910626a91ff7 upstream.

This leverages the logic in smu11. No need to talk to SMU to
check BACO enablement as it's in BACO state already.

Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0, 6.1
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
@@ -2249,6 +2249,10 @@ bool smu_v13_0_baco_is_support(struct sm
            !smu_baco->platform_support)
                return false;
 
+       /* return true if ASIC is in BACO state already */
+       if (smu_v13_0_baco_get_state(smu) == SMU_BACO_STATE_ENTER)
+               return true;
+
        if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_BACO_BIT) &&
            !smu_cmn_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT))
                return false;
1	From 972fb53d3605eb6cdf0d6ae9a52e910626a91ff7 Mon Sep 17 00:00:00 2001
2	From: Guchun Chen <guchun.chen@amd.com>
3	Date: Tue, 10 Jan 2023 11:33:44 +0800
4	Subject: drm/amd/pm/smu13: BACO is supported when it's in BACO state
5
6	From: Guchun Chen <guchun.chen@amd.com>
7
8	commit 972fb53d3605eb6cdf0d6ae9a52e910626a91ff7 upstream.
9
10	This leverages the logic in smu11. No need to talk to SMU to
11	check BACO enablement as it's in BACO state already.
12
13	Signed-off-by: Guchun Chen <guchun.chen@amd.com>
14	Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
15	Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
16	Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
17	Cc: stable@vger.kernel.org # 6.0, 6.1
18	Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
19	---
20	drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c \| 4 ++++
21	1 file changed, 4 insertions(+)
22
23	--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
24	+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c
25	@@ -2249,6 +2249,10 @@ bool smu_v13_0_baco_is_support(struct sm
26	!smu_baco->platform_support)
27	return false;
28
29	+ /* return true if ASIC is in BACO state already */
30	+ if (smu_v13_0_baco_get_state(smu) == SMU_BACO_STATE_ENTER)
31	+ return true;
32	+
33	if (smu_cmn_feature_is_supported(smu, SMU_FEATURE_BACO_BIT) &&
34	!smu_cmn_feature_is_enabled(smu, SMU_FEATURE_BACO_BIT))
35	return false;