[PATCH v2 1/3] PBL: add common define for early malloc size

[Sascha Hauer <s.hauer@pengutronix.de>]

Current all architectures using early malloc in the PBL use a pool size
of 128KiB. Add a common define for it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/arm/cpu/common.c                  | 3 ++-
 arch/arm/cpu/uncompress.c              | 2 +-
 arch/arm/include/asm/barebox-arm.h     | 2 --
 arch/mips/boot/uncompress.c            | 4 ++--
 arch/riscv/include/asm/barebox-riscv.h | 2 +-
 include/pbl.h                          | 3 +++
 6 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/arm/cpu/common.c b/arch/arm/cpu/common.c
index ccadb05ed9..6b82ee8b81 100644
--- a/arch/arm/cpu/common.c
+++ b/arch/arm/cpu/common.c
@@ -4,6 +4,7 @@
 #include <common.h>
 #include <init.h>
 #include <elf.h>
+#include <pbl.h>
 #include <linux/sizes.h>
 #include <asm/system_info.h>
 #include <asm/barebox-arm.h>
@@ -114,7 +115,7 @@ void print_pbl_mem_layout(ulong membase, ulong endmem, ulong barebox_base)
 	printf("arm_mem_barebox_image = 0x%08lx+0x%08lx\n",
 	       barebox_base, arm_mem_barebox_image_end(endmem) - barebox_base);
 	printf("arm_mem_early_malloc  = 0x%08lx+0x%08x\n",
-	       barebox_base - ARM_MEM_EARLY_MALLOC_SIZE, ARM_MEM_EARLY_MALLOC_SIZE);
+	       barebox_base - PBL_MALLOC_SIZE, PBL_MALLOC_SIZE);
 	printf("membase               = 0x%08lx+0x%08lx\n",
 	       membase, endmem - membase);
 }
diff --git a/arch/arm/cpu/uncompress.c b/arch/arm/cpu/uncompress.c
index 38f7dbc113..4bade72ba4 100644
--- a/arch/arm/cpu/uncompress.c
+++ b/arch/arm/cpu/uncompress.c
@@ -78,7 +78,7 @@ void __noreturn barebox_pbl_start(unsigned long membase, unsigned long memsize,
 
 	handoff_data = (void *)barebox_base + uncompressed_len + MAX_BSS_SIZE;
 
-	free_mem_ptr = barebox_base - ARM_MEM_EARLY_MALLOC_SIZE;
+	free_mem_ptr = barebox_base - PBL_MALLOC_SIZE;
 	free_mem_end_ptr = barebox_base;
 
 #ifdef DEBUG
diff --git a/arch/arm/include/asm/barebox-arm.h b/arch/arm/include/asm/barebox-arm.h
index 611b2bb2d6..9349e62fde 100644
--- a/arch/arm/include/asm/barebox-arm.h
+++ b/arch/arm/include/asm/barebox-arm.h
@@ -140,8 +140,6 @@ static inline unsigned long arm_mem_ttb(unsigned long endmem)
 	return endmem;
 }
 
-#define ARM_MEM_EARLY_MALLOC_SIZE	SZ_128K
-
 static inline unsigned long arm_mem_ramoops(unsigned long endmem)
 {
 	endmem = arm_mem_ttb(endmem);
diff --git a/arch/mips/boot/uncompress.c b/arch/mips/boot/uncompress.c
index 0630d03c6b..5c6ba39875 100644
--- a/arch/mips/boot/uncompress.c
+++ b/arch/mips/boot/uncompress.c
@@ -34,8 +34,8 @@ void __section(.text_entry) barebox_pbl_start(void *fdt, void *fdt_end,
 	memset(__bss_start, 0, __bss_stop - __bss_start);
 
 	/* set 128 KiB at the end of the MALLOC_BASE for early malloc */
-	free_mem_ptr = TEXT_BASE - SZ_128K;
-	free_mem_end_ptr = free_mem_ptr + SZ_128K;
+	free_mem_ptr = TEXT_BASE - PBL_MALLOC_SIZE;
+	free_mem_end_ptr = free_mem_ptr + PBL_MALLOC_SIZE;
 
 	piggy_len = (unsigned long)&input_data_end - (unsigned long)&input_data;
 
diff --git a/arch/riscv/include/asm/barebox-riscv.h b/arch/riscv/include/asm/barebox-riscv.h
index 083889817b..a3ae07277d 100644
--- a/arch/riscv/include/asm/barebox-riscv.h
+++ b/arch/riscv/include/asm/barebox-riscv.h
@@ -54,7 +54,7 @@ static inline unsigned long riscv_mem_stack(unsigned long membase,
 static inline unsigned long riscv_mem_early_malloc(unsigned long membase,
 						   unsigned long endmem)
 {
-	return riscv_mem_stack(membase, endmem) - SZ_128K;
+	return riscv_mem_stack(membase, endmem) - PBL_MALLOC_SIZE;
 }
 
 static inline unsigned long riscv_mem_early_malloc_end(unsigned long membase,
diff --git a/include/pbl.h b/include/pbl.h
index 514f114370..5a444fb6fe 100644
--- a/include/pbl.h
+++ b/include/pbl.h
@@ -10,6 +10,7 @@
 
 #include <linux/types.h>
 #include <linux/compiler.h>
+#include <linux/sizes.h>
 
 extern unsigned long free_mem_ptr;
 extern unsigned long free_mem_end_ptr;
@@ -33,6 +34,8 @@ int pbl_barebox_verify(const void *compressed_start, unsigned int len,
 		       const void *hash, unsigned int hash_len);
 int pbl_load_fdt(const void *fdt, void *dest, int destsize);
 
+#define PBL_MALLOC_SIZE SZ_128K
+
 #endif
 
 void __noreturn barebox_pbl_entry(ulong, ulong, void *);
-- 
2.47.3