61 lines
1.9 KiB
Diff
61 lines
1.9 KiB
Diff
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From 3a4a2ec0b8ce17ae5129ea415939a18bc1504e24 Mon Sep 17 00:00:00 2001
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From: miaohong chen <miaohong.chen@amlogic.com>
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Date: Tue, 4 Aug 2026 16:39:34 +0800
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Subject: [PATCH] v4ldec: CB2 Log flooding caused by UVM attachment [1/1]
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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PD#SWPL-282824
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Problem:
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Failed to attach UVM buffer.
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Solution:
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Non‑UVM buffers do not need to be attached to UVM.
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Verify:
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a9
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Change-Id: Idb0332d90ec398c02d48d8f0b33e7c8abc516a22
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Signed-off-by: miaohong chen <miaohong.chen@amlogic.com>
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---
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drivers/amvdec_ports/aml_vcodec_dec.c | 7 +++++--
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1 file changed, 5 insertions(+), 2 deletions(-)
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diff --git a/drivers/amvdec_ports/aml_vcodec_dec.c b/drivers/amvdec_ports/aml_vcodec_dec.c
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index 0aca995a3..f461ce81a 100644
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--- a/drivers/amvdec_ports/aml_vcodec_dec.c
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+++ b/drivers/amvdec_ports/aml_vcodec_dec.c
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@@ -1213,6 +1213,9 @@ static void aml_uvm_mark_status(struct aml_vcodec_ctx *ctx, struct dma_buf *dma)
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struct uvm_hook_mod_info u_info = {0};
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int ret = 0;
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+ if (IS_ERR_OR_NULL(dma) || !dmabuf_is_uvm(dma))
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+ return;
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+
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if (uvm_get_hook_mod(dma, PROCESS_SRC_DECODER)) {
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uvm_put_hook_mod(dma, PROCESS_SRC_DECODER);
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v4l_dbg(ctx, V4L_DEBUG_CODEC_EXINFO,
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@@ -1224,7 +1227,7 @@ static void aml_uvm_mark_status(struct aml_vcodec_ctx *ctx, struct dma_buf *dma)
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u_info.free = aml_uvm_free_callback;
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ret = uvm_attach_hook_mod(dma, &u_info);
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if (ret < 0) {
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- v4l_dbg(ctx, V4L_DEBUG_CODEC_ERROR,
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+ v4l_dbg(ctx, V4L_DEBUG_CODEC_EXINFO,
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"fail to set dmabuf decoder hook\n");
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}
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@@ -1239,7 +1242,7 @@ static void aml_uvm_unmark_status(struct aml_vcodec_ctx *ctx, struct dma_buf *dm
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v4l_dbg(ctx, V4L_DEBUG_CODEC_EXINFO,
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"%s dbuf:%px\n", __func__ , dma);
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- if (!dmabuf_is_uvm(dma)) {
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+ if (IS_ERR_OR_NULL(dma) || !dmabuf_is_uvm(dma)) {
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v4l_dbg(ctx, V4L_DEBUG_CODEC_EXINFO,
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"%s not uvm dmabuf!\n", __func__);
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return;
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--
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2.43.2
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