armbian_build/patch/kernel/archive/rockchip64-6.12/general-pl330-04-bigger-mcode-buffer.patch
Paolo Sabatino 448418b9f3
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rockchip/64: improvements to pl330 dma driver
2025-02-05 13:45:48 +01:00

28 lines
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From f695d6bfdd099ec6f59a73aa792b97df80c72d54 Mon Sep 17 00:00:00 2001
From: Paolo Sabatino <paolo.sabatino@gmail.com>
Date: Sun, 26 Jan 2025 14:49:18 +0100
Subject: [PATCH] increase pl330 microcode buffer size
suggestion comes from the scatter/gather functionality as
proposed here: https://github.com/radxa/kernel/commit/ec0b65dbc59793426b6dc7af06ab6675f4a24940
---
drivers/dma/pl330.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 82a9fe88ad54..eb322c7ae5de 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -246,7 +246,7 @@ enum pl330_byteswap {
* For typical scenario, at 1word/burst, 10MB and 20MB xfers per req
* should be enough for P<->M and M<->M respectively.
*/
-#define MCODE_BUFF_PER_REQ 256
+#define MCODE_BUFF_PER_REQ 512
/* Use this _only_ to wait on transient states */
#define UNTIL(t, s) while (!(_state(t) & (s))) cpu_relax();
--
2.43.0