Commit 73350c38 authored by Eddie James's avatar Eddie James Committed by Greg Kroah-Hartman
Browse files

fsi: occ: Update response size to 8kb 



Newer OCCs return more data.

Signed-off-by: default avatarEddie James <eajames@linux.ibm.com>
Reviewed-by: default avatarNinad Palsule <ninad@linux.ibm.com>
Link: https://patch.msgid.link/20251008152157.1387182-1-eajames@linux.ibm.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 8ae7090d

drivers/fsi/fsi-occ.c

+6 −10
Original line number Diff line number Diff line
@@ -22,9 +22,9 @@ 
#include <linux/uaccess.h>

#include <linux/unaligned.h>



#define OCC_SRAM_BYTES		4096

#define OCC_CMD_DATA_BYTES	4090

#define OCC_RESP_DATA_BYTES	4089

#define OCC_SRAM_BYTES		8192

#define OCC_CMD_DATA_BYTES	8186

#define OCC_RESP_DATA_BYTES	8185



#define OCC_P9_SRAM_CMD_ADDR	0xFFFBE000

#define OCC_P9_SRAM_RSP_ADDR	0xFFFBF000
@@ -86,7 +86,7 @@ static int occ_open(struct inode *inode, struct file *file) 
	if (!client)

		return -ENOMEM;



	client->buffer = (u8 *)__get_free_page(GFP_KERNEL);

	client->buffer = kvmalloc(OCC_SRAM_BYTES, GFP_KERNEL);

	if (!client->buffer) {

		kfree(client);

		return -ENOMEM;
@@ -97,10 +97,6 @@ static int occ_open(struct inode *inode, struct file *file) 
	file->private_data = client;

	get_device(occ->dev);



	/* We allocate a 1-page buffer, make sure it all fits */

	BUILD_BUG_ON((OCC_CMD_DATA_BYTES + 3) > PAGE_SIZE);

	BUILD_BUG_ON((OCC_RESP_DATA_BYTES + 7) > PAGE_SIZE);



	return 0;

}
@@ -176,7 +172,7 @@ static ssize_t occ_write(struct file *file, const char __user *buf, 
	}



	/* Submit command; 4 bytes before the data and 2 bytes after */

	rlen = PAGE_SIZE;

	rlen = OCC_SRAM_BYTES;

	rc = fsi_occ_submit(client->occ->dev, cmd, data_length + 6, cmd,

			    &rlen);

	if (rc)
@@ -200,7 +196,7 @@ static int occ_release(struct inode *inode, struct file *file) 
	struct occ_client *client = file->private_data;



	put_device(client->occ->dev);

	free_page((unsigned long)client->buffer);

	kvfree(client->buffer);

	kfree(client);



	return 0;