From 96c308559eedcea0563c98fae4d3fee9d84b6b8d Mon Sep 17 00:00:00 2001
From: Lucas Stach <l.stach@pengutronix.de>
Date: Fri, 25 Oct 2024 17:14:46 +0200
Subject: [PATCH] drm/etnaviv: flush shader L1 cache after user commandstream
commit 4f8dbadef085ab447a01a8d4806a3f629fea05ed upstream.
The shader L1 cache is a writeback cache for shader loads/stores
and thus must be flushed before any BOs backing the shader buffers
are potentially freed.
Cc: stable@vger.kernel.org
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/etnaviv/etnaviv_buffer.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
index 384df1659be60..b13a17276d07c 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_buffer.c
@@ -482,7 +482,8 @@ void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
} else {
CMD_LOAD_STATE(buffer, VIVS_GL_FLUSH_CACHE,
VIVS_GL_FLUSH_CACHE_DEPTH |
- VIVS_GL_FLUSH_CACHE_COLOR);
+ VIVS_GL_FLUSH_CACHE_COLOR |
+ VIVS_GL_FLUSH_CACHE_SHADER_L1);
if (has_blt) {
CMD_LOAD_STATE(buffer, VIVS_BLT_ENABLE, 0x1);
CMD_LOAD_STATE(buffer, VIVS_BLT_SET_COMMAND, 0x1);
--
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