| 26,7 → 26,15 |
|---|
| # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| |
| #include <arch/stack.h> |
| |
| #define STACK_ITEMS 12 |
| #define STACK_FRAME_SIZE ((STACK_ITEMS*STACK_ITEM_SIZE) + STACK_SCRATCH_AREA_SIZE) |
| |
| #if (STACK_FRAME_SIZE % STACK_ALIGNMENT != 0) |
| #error Memory stack must be 16-byte aligned. |
| #endif |
| |
| /** Heavyweight interrupt handler |
| * |
| * This macro roughly follows steps from 1 to 19 described in |
| 57,15 → 65,16 |
|---|
| /* assume kernel stack */ |
| |
| /* 4. save registers in bank 0 into memory stack */ |
| add r12 = -8, r12 ;; |
| add r31 = -8, r12 ;; |
| add r12 = -STACK_FRAME_SIZE, r12 ;; |
| |
| st8 [r12] = r29, -8 ;; /* save predicate registers */ |
| st8 [r31] = r29, -8 ;; /* save predicate registers */ |
| |
| st8 [r12] = r24, -8 ;; /* save cr.iip */ |
| st8 [r12] = r25, -8 ;; /* save cr.ipsr */ |
| st8 [r12] = r26, -8 ;; /* save cr.iipa */ |
| st8 [r12] = r27, -8 ;; /* save cr.isr */ |
| st8 [r12] = r28, -8 ;; /* save cr.ifa */ |
| st8 [r31] = r24, -8 ;; /* save cr.iip */ |
| st8 [r31] = r25, -8 ;; /* save cr.ipsr */ |
| st8 [r31] = r26, -8 ;; /* save cr.iipa */ |
| st8 [r31] = r27, -8 ;; /* save cr.isr */ |
| st8 [r31] = r28, -8 ;; /* save cr.ifa */ |
| |
| /* 5. RSE switch from interrupted context */ |
| .auto |
| 74,9 → 83,9 |
|---|
| cover |
| mov r26 = cr.ifs |
| |
| st8 [r12] = r24, -8 /* save ar.rsc */ |
| st8 [r12] = r25, -8 /* save ar.pfs */ |
| st8 [r12] = r26, -8 /* save ar.ifs */ |
| st8 [r31] = r24, -8 /* save ar.rsc */ |
| st8 [r31] = r25, -8 /* save ar.pfs */ |
| st8 [r31] = r26, -8 /* save ar.ifs */ |
| |
| and r30 = ~3, r24 |
| mov ar.rsc = r30 /* place RSE in enforced lazy mode */ |
| 89,9 → 98,9 |
|---|
| |
| mov r29 = ar.bsp |
| |
| st8 [r12] = r27, -8 /* save ar.rnat */ |
| st8 [r12] = r28, -8 /* save ar.bspstore */ |
| st8 [r12] = r29 /* save ar.bsp */ |
| st8 [r31] = r27, -8 /* save ar.rnat */ |
| st8 [r31] = r28, -8 /* save ar.bspstore */ |
| st8 [r31] = r29 /* save ar.bsp */ |
| |
| mov ar.rsc = r24 /* restore RSE's setting */ |
| .explicit |