Re: [PATCH v1 1/4] MIPS: relocation: pass ram size to pbl_main_entry

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Hi Antony,

your attention will be needed here..


On 18.02.19 08:51, Oleksij Rempel wrote:

From: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>

To make barebox dynamically relocatable it should know
the RAM size to be able to calculate proper new location.

Signed-off-by: Oleksij Rempel <linux@xxxxxxxxxxxxxxxx>
---
  arch/mips/boards/8devices-lima/lowlevel.S         | 3 ++-
  arch/mips/boards/black-swift/lowlevel.S           | 3 ++-
  arch/mips/boards/dlink-dir-320/lowlevel.S         | 3 ++-
  arch/mips/boards/dptechnics-dpt-module/lowlevel.S | 3 ++-
  arch/mips/boards/img-ci20/lowlevel.S              | 3 ++-
  arch/mips/boards/loongson-ls1b/lowlevel.S         | 3 ++-
  arch/mips/boards/qemu-malta/lowlevel.S            | 3 ++-
  arch/mips/boards/ritmix-rzx50/lowlevel.S          | 3 ++-
  arch/mips/boards/tplink-mr3020/lowlevel.S         | 3 ++-
  arch/mips/boards/tplink-wdr4300/lowlevel.S        | 3 ++-
  arch/mips/boot/main_entry-pbl.c                   | 5 +++--
  arch/mips/include/asm/asm.h                       | 3 ++-
  12 files changed, 25 insertions(+), 13 deletions(-)

diff --git a/arch/mips/boards/8devices-lima/lowlevel.S b/arch/mips/boards/8devices-lima/lowlevel.S
index b53b23b42a..dd1ab6247d 100644
--- a/arch/mips/boards/8devices-lima/lowlevel.S
+++ b/arch/mips/boards/8devices-lima/lowlevel.S
@@ -11,6 +11,7 @@
  #include <mach/pbl_macros.h>
  #include <mach/pbl_ll_init_qca4531.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) @@ -38,4 +39,4 @@ skip_flash_test: 
  	dcache_enable
  skip_pll_ram_config:
-ENTRY_FUNCTION_END(BOARD_PBL_START, qca4531_8devices_lima) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, qca4531_8devices_lima, SZ_64M)
diff --git a/arch/mips/boards/black-swift/lowlevel.S b/arch/mips/boards/black-swift/lowlevel.S
index 0ba77435f8..5c5afcdf09 100644
--- a/arch/mips/boards/black-swift/lowlevel.S
+++ b/arch/mips/boards/black-swift/lowlevel.S
@@ -11,9 +11,10 @@
  #include <asm/asm.h>
  #include <mach/pbl_macros.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) ar9331_pbl_generic_start -ENTRY_FUNCTION_END(BOARD_PBL_START, black_swift) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, black_swift, SZ_64M)
diff --git a/arch/mips/boards/dlink-dir-320/lowlevel.S b/arch/mips/boards/dlink-dir-320/lowlevel.S
index 9f3bd5dead..da969bc74e 100644
--- a/arch/mips/boards/dlink-dir-320/lowlevel.S
+++ b/arch/mips/boards/dlink-dir-320/lowlevel.S
@@ -9,6 +9,7 @@
  #include <asm/pbl_macros.h>
  #include <mach/debug_ll.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) @@ -19,4 +20,4 @@ ENTRY_FUNCTION(BOARD_PBL_START) 
  	/* CPU/SoC specific setup ... */
  	/* ... absent */
-ENTRY_FUNCTION_END(BOARD_PBL_START, dlink_dir_320) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, dlink_dir_320, SZ_32M)
diff --git a/arch/mips/boards/dptechnics-dpt-module/lowlevel.S b/arch/mips/boards/dptechnics-dpt-module/lowlevel.S
index 28b8f4fac7..b5621963c3 100644
--- a/arch/mips/boards/dptechnics-dpt-module/lowlevel.S
+++ b/arch/mips/boards/dptechnics-dpt-module/lowlevel.S
@@ -12,9 +12,10 @@
  #include <asm/pbl_macros.h>
  #include <mach/pbl_macros.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) ar9331_pbl_generic_start -ENTRY_FUNCTION_END(BOARD_PBL_START, ar9331_dptechnics_dpt_module) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, ar9331_dptechnics_dpt_module, SZ_64M)
diff --git a/arch/mips/boards/img-ci20/lowlevel.S b/arch/mips/boards/img-ci20/lowlevel.S
index 056df17bf8..0295e44d1a 100644
--- a/arch/mips/boards/img-ci20/lowlevel.S
+++ b/arch/mips/boards/img-ci20/lowlevel.S
@@ -10,6 +10,7 @@
  #include <asm/pbl_macros.h>
  #include <mach/debug_ll.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) @@ -23,4 +24,4 @@ ENTRY_FUNCTION(BOARD_PBL_START) 
  	debug_ll_outc '.'
  	debug_ll_ns16550_outnl
-ENTRY_FUNCTION_END(BOARD_PBL_START, img_ci20) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, img_ci20, SZ_1G)
diff --git a/arch/mips/boards/loongson-ls1b/lowlevel.S b/arch/mips/boards/loongson-ls1b/lowlevel.S
index 37744e9fac..c533df3ce5 100644
--- a/arch/mips/boards/loongson-ls1b/lowlevel.S
+++ b/arch/mips/boards/loongson-ls1b/lowlevel.S
@@ -9,6 +9,7 @@
  #include <mach/loongson1.h>
  #include <mach/debug_ll.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) @@ -21,4 +22,4 @@ ENTRY_FUNCTION(BOARD_PBL_START) 
  	debug_ll_outc '.'
  	debug_ll_ns16550_outnl
-ENTRY_FUNCTION_END(BOARD_PBL_START, loongson_ls1b) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, loongson_ls1b, SZ_64M)
diff --git a/arch/mips/boards/qemu-malta/lowlevel.S b/arch/mips/boards/qemu-malta/lowlevel.S
index 3861ae9e46..e4ecde45cf 100644
--- a/arch/mips/boards/qemu-malta/lowlevel.S
+++ b/arch/mips/boards/qemu-malta/lowlevel.S
@@ -10,6 +10,7 @@
  #include <asm/asm.h>
  #include <asm/pbl_macros.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
#include <asm/addrspace.h> 
  #include <asm/gt64120.h>
@@ -82,4 +83,4 @@ __start:
  	li	t0, GT_LD(0x1bdfffff)
  	sw	t0, GT_PCI0M1HD_OFS(t1)
-ENTRY_FUNCTION_END(BOARD_PBL_START, qemu_malta) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, qemu_malta, SZ_256M)
diff --git a/arch/mips/boards/ritmix-rzx50/lowlevel.S b/arch/mips/boards/ritmix-rzx50/lowlevel.S
index 7a9743835e..33810f67f5 100644
--- a/arch/mips/boards/ritmix-rzx50/lowlevel.S
+++ b/arch/mips/boards/ritmix-rzx50/lowlevel.S
@@ -10,6 +10,7 @@
  #include <asm/pbl_macros.h>
  #include <mach/debug_ll.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) @@ -23,4 +24,4 @@ ENTRY_FUNCTION(BOARD_PBL_START) 
  	debug_ll_outc '.'
  	debug_ll_ns16550_outnl
-ENTRY_FUNCTION_END(BOARD_PBL_START, rzx50) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, rzx50, SZ_64M)
diff --git a/arch/mips/boards/tplink-mr3020/lowlevel.S b/arch/mips/boards/tplink-mr3020/lowlevel.S
index 0a1c193c1e..b96292ecc4 100644
--- a/arch/mips/boards/tplink-mr3020/lowlevel.S
+++ b/arch/mips/boards/tplink-mr3020/lowlevel.S
@@ -11,9 +11,10 @@
  #include <asm/asm.h>
  #include <mach/pbl_macros.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) ar9331_pbl_generic_start -ENTRY_FUNCTION_END(BOARD_PBL_START, tplink_mr3020) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, tplink_mr3020, SZ_32M)
diff --git a/arch/mips/boards/tplink-wdr4300/lowlevel.S b/arch/mips/boards/tplink-wdr4300/lowlevel.S
index 461b257f41..8aed5ddcf1 100644
--- a/arch/mips/boards/tplink-wdr4300/lowlevel.S
+++ b/arch/mips/boards/tplink-wdr4300/lowlevel.S
@@ -11,6 +11,7 @@
  #include <mach/pbl_macros.h>
  #include <mach/pbl_ll_init_ar9344_1.1.h>
  #include <asm/pbl_nmon.h>
+#include <linux/sizes.h>
ENTRY_FUNCTION(BOARD_PBL_START) @@ -35,4 +36,4 @@ skip_flash_test: skip_pll_ram_config: -ENTRY_FUNCTION_END(BOARD_PBL_START, ar9344_tl_wdr4300_v1.7) 
+ENTRY_FUNCTION_END(BOARD_PBL_START, ar9344_tl_wdr4300_v1.7, SZ_128M)
diff --git a/arch/mips/boot/main_entry-pbl.c b/arch/mips/boot/main_entry-pbl.c
index b40887b064..28eaa8791f 100644
--- a/arch/mips/boot/main_entry-pbl.c
+++ b/arch/mips/boot/main_entry-pbl.c
@@ -18,7 +18,7 @@ extern void *input_data_end;
  unsigned long free_mem_ptr;
  unsigned long free_mem_end_ptr;
-void pbl_main_entry(void *fdt, void *fdt_end); 
+void pbl_main_entry(void *fdt, void *fdt_end, u32 ram_size);
static unsigned long *ttb; @@ -33,7 +33,8 @@ static void barebox_uncompress(void *compressed_start, unsigned int len) 
  	pbl_barebox_uncompress((void*)TEXT_BASE, compressed_start, len);
  }
-void __section(.text_entry) pbl_main_entry(void *fdt, void *fdt_end) 
+void __section(.text_entry) pbl_main_entry(void *fdt, void *fdt_end,
+					   u32 ram_size)
  {
  	u32 pg_start, pg_end, pg_len, fdt_len;
  	void *fdt_new;
diff --git a/arch/mips/include/asm/asm.h b/arch/mips/include/asm/asm.h
index 7d2b673bd9..a85467ceed 100644
--- a/arch/mips/include/asm/asm.h
+++ b/arch/mips/include/asm/asm.h
@@ -89,13 +89,14 @@ EXPORT(symbol)
  /*
   * ENTRY_FUNCTION_END - mark end of entry function
   */
-#define ENTRY_FUNCTION_END(symbol, dtb)			\
+#define ENTRY_FUNCTION_END(symbol, dtb, ram_size)	\
  	mips_nmon;					\
  	copy_to_link_location	symbol;			\
  	stack_setup;					\
  							\
  	la	a0, __dtb_ ## dtb##_start;		\
  	la	a1, __dtb_ ## dtb##_end;		\
+	li	a2, ram_size;				\
  	la	v0, pbl_main_entry;			\
  	jal	v0;					\
  	 nop;						\



Kind regards,
Oleksij Rempel

--
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