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From b432ad86f8069bdba6b4776790386f23ee6e5755 Mon Sep 17 00:00:00 2001
From: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Date: Thu, 13 Jul 2017 10:52:47 -0400
Subject: [PATCH 0617/4131] drm/amd/display: Preserve refcount for S3 case.
Curent_context is zerroed out for suspend, keep the refcount.
Minor code move in dc_commit_context_no_check
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/display/dc/core/dc.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 8e580ac..20f4199 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -977,10 +977,10 @@ static bool dc_commit_context_no_check(struct dc *dc, struct validate_context *c
dc_release_validate_context(core_dc->current_context);
- dc_retain_validate_context(context);
-
core_dc->current_context = context;
+ dc_retain_validate_context(core_dc->current_context);
+
return (result == DC_OK);
}
@@ -1065,8 +1065,6 @@ bool dc_commit_streams(
result = dc_commit_context_no_check(dc, context);
- return (result == DC_OK);
-
fail:
dc_release_validate_context(context);
@@ -1736,6 +1734,7 @@ void dc_set_power_state(
enum dc_acpi_cm_power_state power_state)
{
struct core_dc *core_dc = DC_TO_CORE(dc);
+ int ref_count;
switch (power_state) {
case DC_ACPI_CM_POWER_STATE_D0:
@@ -1749,8 +1748,13 @@ void dc_set_power_state(
* clean state, and dc hw programming optimizations will not
* cause any trouble.
*/
+
+ /* Preserve refcount */
+ ref_count = core_dc->current_context->ref_count;
+ dc_resource_validate_ctx_destruct(core_dc->current_context);
memset(core_dc->current_context, 0,
sizeof(*core_dc->current_context));
+ core_dc->current_context->ref_count = ref_count;
break;
}
--
2.7.4
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