diff options
| author | Daniel Cederman <cederman@gaisler.com> | 2016-10-04 09:05:04 +0200 |
|---|---|---|
| committer | Daniel Cederman <cederman@gaisler.com> | 2016-10-04 09:05:04 +0200 |
| commit | 38ca68d664702b11ee417afa73363dccd945ceab (patch) | |
| tree | 023a07ac249c2a8df67103ef589b27500709c839 /c/src/lib/libcpu/sparc/reg_win/window.S | |
| parent | c7d624eedc3995f4554505e565013a5103d37c48 (diff) | |
ERRATA-FIX: Change assembler sequence that can cause stst erratarcc-v1.2.20
See GRLIB-TN-0009: "LEON3FT Stale Cache Entry After Store with Data
Tag Parity Error".
Diffstat (limited to 'c/src/lib/libcpu/sparc/reg_win/window.S')
| -rw-r--r-- | c/src/lib/libcpu/sparc/reg_win/window.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/sparc/reg_win/window.S b/c/src/lib/libcpu/sparc/reg_win/window.S index 3ec3f50a10..fa327ec28a 100644 --- a/c/src/lib/libcpu/sparc/reg_win/window.S +++ b/c/src/lib/libcpu/sparc/reg_win/window.S @@ -65,12 +65,19 @@ SYM(window_overflow_trap_handler): mov %g1, %wim ! load new WIM nop; nop; nop ! 3 slot delay std %l0, [%sp + 0x00] ! save local register set + B2BSTORE_FIX std %l2, [%sp + 0x08] + B2BSTORE_FIX std %l4, [%sp + 0x10] + B2BSTORE_FIX std %l6, [%sp + 0x18] + B2BSTORE_FIX std %i0, [%sp + 0x20] ! save input register set + B2BSTORE_FIX std %i2, [%sp + 0x28] + B2BSTORE_FIX std %i4, [%sp + 0x30] + B2BSTORE_FIX std %i6, [%sp + 0x38] restore ! Go back to trap window. mov %l7, %g1 ! restore g1 @@ -202,13 +209,20 @@ save_frame_loop: */ std %l0, [%sp + CPU_STACK_FRAME_L0_OFFSET] + B2BSTORE_FIX std %l2, [%sp + CPU_STACK_FRAME_L2_OFFSET] + B2BSTORE_FIX std %l4, [%sp + CPU_STACK_FRAME_L4_OFFSET] + B2BSTORE_FIX std %l6, [%sp + CPU_STACK_FRAME_L6_OFFSET] + B2BSTORE_FIX std %i0, [%sp + CPU_STACK_FRAME_I0_OFFSET] + B2BSTORE_FIX std %i2, [%sp + CPU_STACK_FRAME_I2_OFFSET] + B2BSTORE_FIX std %i4, [%sp + CPU_STACK_FRAME_I4_OFFSET] + B2BSTORE_FIX std %i6, [%sp + CPU_STACK_FRAME_I6_FP_OFFSET] sll %g4, 1, %g5 ! rotate the "wim" left 1 |