linux-kernel - [PATCH 5.10 086/290] drm/amdgpu/display: use GFP_ATOMIC in dcn21_validate_bandwidth

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Message-Id: <20210315135544.825773941@linuxfoundation.org>
Date:   Mon, 15 Mar 2021 14:52:59 +0100
From:   gregkh@...uxfoundation.org
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Holger Hoffstätte 
        <holger@...lied-asynchrony.com>,
        Alex Deucher <alexander.deucher@....com>
Subject: [PATCH 5.10 086/290] drm/amdgpu/display: use GFP_ATOMIC in dcn21_validate_bandwidth_fp()

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

From: Holger Hoffstätte <holger@...lied-asynchrony.com>

commit 680174cfd1e1cea70a8f30ccb44d8fbdf996018e upstream.

After fixing nested FPU contexts caused by 41401ac67791 we're still seeing
complaints about spurious kernel_fpu_end(). As it turns out this was
already fixed for dcn20 in commit f41ed88cbd ("drm/amdgpu/display:
use GFP_ATOMIC in dcn20_validate_bandwidth_internal") but never moved
forward to dcn21.

Signed-off-by: Holger Hoffstätte <holger@...lied-asynchrony.com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_resource.c
@@ -1183,7 +1183,7 @@ static noinline bool dcn21_validate_band
 	int vlevel = 0;
 	int pipe_split_from[MAX_PIPES];
 	int pipe_cnt = 0;
-	display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_KERNEL);
+	display_e2e_pipe_params_st *pipes = kzalloc(dc->res_pool->pipe_count * sizeof(display_e2e_pipe_params_st), GFP_ATOMIC);
 	DC_LOGGER_INIT(dc->ctx->logger);
 
 	BW_VAL_TRACE_COUNT();