kernel/0166-feat-Support-mmz-partition-resize.patch

From 2d7427babc633e54bbeeddf6efaac5526cbc9138 Mon Sep 17 00:00:00 2001
From: linmin <linmin@eswincomputing.com>
Date: Wed, 4 Sep 2024 15:13:10 +0800
Subject: [PATCH 166/219] feat:Support mmz partition resize

Changelogs:
1.It is able to resize the mmz partition via uboot command:"fdt mmz <name> <addr> <size>".
  The "@upper,lower" will be added as suffix to mmz partition name. This name does NOT
  conform to mmz partition naming conventions.
  So, change the eswin_memblock.c to truncate the string before '@' character and use it as
  the partition name.

Signed-off-by: linmin <linmin@eswincomputing.com>
---
 drivers/memory/eswin/eswin_memblock.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/memory/eswin/eswin_memblock.c b/drivers/memory/eswin/eswin_memblock.c
index c99b0b0b100d..06c8635c6a60 100644
--- a/drivers/memory/eswin/eswin_memblock.c
+++ b/drivers/memory/eswin/eswin_memblock.c
@@ -82,6 +82,8 @@ static int __init eswin_rsvmem_init_reserved_mem(phys_addr_t base, phys_addr_t s
 {
 	struct mem_block *memblock;
 	phys_addr_t alignment;
+	char *temp;
+	int bname_len;
 
 	/* Sanity checks */
 	if (eswin_rsvmem_block_count == ARRAY_SIZE(eswin_rsvmem_blocks)) {
@@ -113,9 +115,15 @@ static int __init eswin_rsvmem_init_reserved_mem(phys_addr_t base, phys_addr_t s
 
 	/* Set esPagesStart = NULL here, it will be allocated later by fs_initcall*/
 	memblock->esPagesStart = NULL;
-
 	memblock->kPageStart = phys_to_page(base);
+
 	snprintf(memblock->name, BLOCK_MAX_NAME, name);
+	temp = strchr(memblock->name, '@');
+	if (temp) {
+		bname_len = strnlen(memblock->name, BLOCK_MAX_NAME) - strnlen(temp,
+								BLOCK_MAX_NAME);
+		*(memblock->name + bname_len) = '\0';
+	}
 
 	eswin_rsvmem_block_count++;
 
@@ -161,8 +169,8 @@ static int __init rmem_eswin_setup(struct reserved_mem *rmem)
 		return err;
 	}
 
-	pr_info("Reserved memory: created eswin reserve memory at %pa, size %ld MiB\n",
-		&rmem->base, (unsigned long)rmem->size / SZ_1M);
+	pr_info("Reserved memory: created %s eswin reserve memory at %pa, size %ld MiB\n",
+		rmem->name, &rmem->base, (unsigned long)rmem->size / SZ_1M);
 
 	return 0;
 }
-- 
2.47.0