armv8: layerscape: clean exported symbols in spintable.S
Add a new variable secondary_boot_code_start, which holds a pointer to
the start of the spin table code. This will help to relocate the code
section. While at it, move the size variable from the end to the
beginning so there is a common section for the variables. Remove any
other symbols.
Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
index 67764ee..7400b2c 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/fdt.c
@@ -54,7 +54,6 @@
fdt32_t *reg;
int addr_cells;
u64 val, core_id;
- size_t *boot_code_size = &(__secondary_boot_code_size);
u32 mask = cpu_pos_mask();
int off_prev = -1;
@@ -145,11 +144,11 @@
"cpu", 4);
}
- fdt_add_mem_rsv(blob, (uintptr_t)&secondary_boot_code,
- *boot_code_size);
+ fdt_add_mem_rsv(blob, (uintptr_t)secondary_boot_code_start,
+ secondary_boot_code_size);
#if CONFIG_IS_ENABLED(EFI_LOADER)
- efi_add_memory_map((uintptr_t)&secondary_boot_code, *boot_code_size,
- EFI_RESERVED_MEMORY_TYPE);
+ efi_add_memory_map((uintptr_t)secondary_boot_code_start,
+ secondary_boot_code_size, EFI_RESERVED_MEMORY_TYPE);
#endif
}
#endif
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/mp.c b/arch/arm/cpu/armv8/fsl-layerscape/mp.c
index 753215a..d50c5a4 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/mp.c
+++ b/arch/arm/cpu/armv8/fsl-layerscape/mp.c
@@ -15,12 +15,14 @@
#include <linux/delay.h>
#include "cpu.h"
#include <asm/arch-fsl-layerscape/soc.h>
+#include <efi_loader.h>
DECLARE_GLOBAL_DATA_PTR;
void *get_spin_tbl_addr(void)
{
- return &__spin_table;
+ /* the spin table is at the beginning */
+ return secondary_boot_code_start;
}
void update_os_arch_secondary_cores(uint8_t os_arch)
diff --git a/arch/arm/cpu/armv8/fsl-layerscape/spintable.S b/arch/arm/cpu/armv8/fsl-layerscape/spintable.S
index 0e38cd0..f082e10 100644
--- a/arch/arm/cpu/armv8/fsl-layerscape/spintable.S
+++ b/arch/arm/cpu/armv8/fsl-layerscape/spintable.S
@@ -10,23 +10,28 @@
#include <asm/system.h>
#include <asm/arch/mp.h>
- .align 3
- .global secondary_boot_addr
+.align 3
+.global secondary_boot_addr
secondary_boot_addr:
- .quad secondary_boot_func
+ .quad __secondary_boot_func
+.global secondary_boot_code_start
+secondary_boot_code_start:
+ .quad __secondary_boot_code_start
+
+.global secondary_boot_code_size
+secondary_boot_code_size:
+ .quad __secondary_boot_code_end - __secondary_boot_code_start
/* Using 64 bit alignment since the spin table is accessed as data */
.align 3
- .global secondary_boot_code
/* Secondary Boot Code starts here */
-secondary_boot_code:
- .global __spin_table
+__secondary_boot_code_start:
__spin_table:
.space CONFIG_MAX_CPUS*SPIN_TABLE_ELEM_SIZE
.align 2
-ENTRY(secondary_boot_func)
+ENTRY(__secondary_boot_func)
/*
* MPIDR_EL1 Fields:
* MPIDR[1:0] = AFF0_CPUID <- Core ID (0,1)
@@ -100,7 +105,7 @@
ldr x5, =ES_TO_AARCH64
bl secondary_switch_to_el2
-ENDPROC(secondary_boot_func)
+ENDPROC(__secondary_boot_func)
ENTRY(secondary_switch_to_el2)
switch_el x6, 1f, 0f, 0f
@@ -146,8 +151,5 @@
.global __real_cntfrq
__real_cntfrq:
.quad COUNTER_FREQUENCY
- .globl __secondary_boot_code_size
- .type __secondary_boot_code_size, %object
/* Secondary Boot Code ends here */
-__secondary_boot_code_size:
- .quad .-secondary_boot_code
+__secondary_boot_code_end: