1 files changed, 0 insertions, 48 deletions
diff --git a/target/linux/layerscape/patches-4.14/825-vfio-fsl-mc-Improve-send-mc-command-and-read-respons.patch b/target/linux/layerscape/patches-4.14/825-vfio-fsl-mc-Improve-send-mc-command-and-read-respons.patch
deleted file mode 100644
index c04fef044c..0000000000
--- a/target/linux/layerscape/patches-4.14/825-vfio-fsl-mc-Improve-send-mc-command-and-read-respons.patch
+++ /dev/null
@@ -1,48 +0,0 @@
-From 703b2ca94467a029942fa478a38f0a14c8109766 Mon Sep 17 00:00:00 2001
-From: Bharat Bhushan <bharat.bhushan@nxp.com>
-Date: Fri, 1 Mar 2019 13:33:58 +0800
-Subject: [PATCH] vfio/fsl-mc: Improve send mc-command and read response
-
-Actually there is no ordering need when reading response
-from mc-portal. Similarly when writing the mc-command,
-ordering needed before command is submitted.
-
-This patch removes un-necessary barriers, response is read
-relaxed and maintain ordering when submit command. This also
-fixes compilation issue with newer kernel.
-
-Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
-Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
----
- drivers/vfio/fsl-mc/vfio_fsl_mc.c | 13 +++++++------
- 1 file changed, 7 insertions(+), 6 deletions(-)
-
---- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c
-+++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c
-@@ -331,9 +331,7 @@ static int vfio_fsl_mc_dprc_wait_for_res
- 		u64 header;
- 		struct mc_cmd_header *resp_hdr;
- 
--		__iormb();
--		header = readq(ioaddr);
--		__iormb();
-+		header = cpu_to_le64(readq_relaxed(ioaddr));
- 
- 		resp_hdr = (struct mc_cmd_header *)&header;
- 		status = (enum mc_cmd_status)resp_hdr->status;
-@@ -353,9 +351,12 @@ static int vfio_fsl_mc_send_command(void
- {
- 	int i;
- 
--	/* Write at command header in the end */
--	for (i = 7; i >= 0; i--)
--		writeq(cmd_data[i], ioaddr + i * sizeof(uint64_t));
-+	/* Write at command parameter into portal */
-+	for (i = 7; i >= 1; i--)
-+		writeq_relaxed(cmd_data[i], ioaddr + i * sizeof(uint64_t));
-+
-+	/* Write command header in the end */
-+	writeq(cmd_data[0], ioaddr);
- 
- 	/* Wait for response before returning to user-space
- 	 * This can be optimized in future to even prepare response