diff options
Diffstat (limited to 'include/runtime_svc.h')
| -rw-r--r-- | include/runtime_svc.h | 58 |
1 files changed, 56 insertions, 2 deletions
diff --git a/include/runtime_svc.h b/include/runtime_svc.h index 3ccbe881..61c2d275 100644 --- a/include/runtime_svc.h +++ b/include/runtime_svc.h @@ -31,6 +31,7 @@ #ifndef __RUNTIME_SVC_H__ #define __RUNTIME_SVC_H__ #include <psci.h> +#include <bl_common.h> /******************************************************************************* * Bit definitions inside the function id as per the SMC calling convention @@ -72,6 +73,45 @@ #define FIQ_AARCH32 0xe #define SERROR_AARCH32 0xf +/******************************************************************************* + * Constants that allow assembler code to access members of the 'gp_regs' + * structure at their correct offsets. + ******************************************************************************/ +#define SIZEOF_GPREGS 0x110 +#define GPREGS_X0_OFF 0x0 +#define GPREGS_X1_OFF 0x8 +#define GPREGS_X2_OFF 0x10 +#define GPREGS_X3_OFF 0x18 +#define GPREGS_X4_OFF 0x20 +#define GPREGS_X5_OFF 0x28 +#define GPREGS_X6_OFF 0x30 +#define GPREGS_X7_OFF 0x38 +#define GPREGS_X8_OFF 0x40 +#define GPREGS_X9_OFF 0x48 +#define GPREGS_X10_OFF 0x50 +#define GPREGS_X11_OFF 0x58 +#define GPREGS_X12_OFF 0x60 +#define GPREGS_X13_OFF 0x68 +#define GPREGS_X14_OFF 0x70 +#define GPREGS_X15_OFF 0x78 +#define GPREGS_X16_OFF 0x80 +#define GPREGS_X17_OFF 0x88 +#define GPREGS_X18_OFF 0x90 +#define GPREGS_X19_OFF 0x98 +#define GPREGS_X20_OFF 0xA0 +#define GPREGS_X21_OFF 0xA8 +#define GPREGS_X22_OFF 0xB0 +#define GPREGS_X23_OFF 0xB8 +#define GPREGS_X24_OFF 0xC0 +#define GPREGS_X25_OFF 0xC8 +#define GPREGS_X26_OFF 0xD0 +#define GPREGS_X27_OFF 0xD8 +#define GPREGS_X28_OFF 0xE0 +#define GPREGS_SP_EL0_OFF 0xE8 +#define GPREGS_SPSR_OFF 0xF0 +#define GPREGS_FP_OFF 0x100 +#define GPREGS_LR_OFF 0x108 + #ifndef __ASSEMBLY__ typedef struct { @@ -106,10 +146,24 @@ typedef struct { unsigned long x28; unsigned long sp_el0; unsigned long spsr; - unsigned long fp; + /* + * Alignment constraint which allows save & restore of fp & lr on the + * stack during exception handling + */ + unsigned long fp __attribute__((__aligned__(16))); unsigned long lr; -} gp_regs; +} __attribute__((__aligned__(16))) gp_regs; +/******************************************************************************* + * Compile time assertions to ensure that: + * 1) the assembler code's view of the size of the 'gp_regs' data structure is + * the same as the actual size of this data structure. + * 2) the assembler code's view of the offset of the frame pointer member of + * the 'gp_regs' structure is the same as the actual offset of this member. + ******************************************************************************/ +CASSERT((sizeof(gp_regs) == SIZEOF_GPREGS), assert_sizeof_gpregs_mismatch); +CASSERT(GPREGS_FP_OFF == __builtin_offsetof(gp_regs, fp), \ + assert_gpregs_fp_offset_mismatch); /******************************************************************************* * Function & variable prototypes |