With generic "identity" num of CPUs is limited to 256 (8 bit).
We use our alternative AUX register GLOBAL_ID (12 bit).
Now we can support up to 4096 CPUs.
Signed-off-by: Noam Camus <noamc@ezchip.com>
#include <asm/irqflags-compact.h>
#include <asm/thread_info.h> /* For THREAD_SIZE */
+#ifdef CONFIG_ARC_PLAT_EZNPS
+#include <plat/ctop.h>
+#endif
+
/*--------------------------------------------------------------
* Switch to Kernel Mode stack if SP points to User Mode stack
*
bic \reg, sp, (THREAD_SIZE - 1)
.endm
+#ifndef CONFIG_ARC_PLAT_EZNPS
/* Get CPU-ID of this core */
.macro GET_CPU_ID reg
lr \reg, [identity]
lsr \reg, \reg, 8
bmsk \reg, \reg, 7
.endm
+#endif
#endif /* __ASM_ARC_ENTRY_COMPACT_H */
#include <asm/asm-offsets.h>
#include <linux/sched.h>
+#ifdef CONFIG_ARC_PLAT_EZNPS
+#include <plat/ctop.h>
+#endif
#define KSP_WORD_OFF ((TASK_THREAD + THREAD_KSP) / 4)
*/
#ifndef CONFIG_SMP
"st %2, [@_current_task] \n\t"
+#else
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ "lr r24, [%4] \n\t"
+#ifndef CONFIG_EZNPS_MTM_EXT
+ "lsr r24, r24, 4 \n\t"
+#endif
#else
"lr r24, [identity] \n\t"
"lsr r24, r24, 8 \n\t"
"bmsk r24, r24, 7 \n\t"
+#endif
"add2 r24, @_current_task, r24 \n\t"
"st %2, [r24] \n\t"
#endif
: "=r"(tmp)
: "n"(KSP_WORD_OFF), "r"(next), "r"(prev)
+#ifdef CONFIG_ARC_PLAT_EZNPS
+ , "i"(CTOP_AUX_LOGIC_GLOBAL_ID)
+#endif
: "blink"
);
#define REG_GIM_P_INT_DST_25 nps_host_reg_non_cl(NPS_GIM_BLKID, 0x149)
#define REG_GIM_P_INT_DST_26 nps_host_reg_non_cl(NPS_GIM_BLKID, 0x14A)
+#else
+
+.macro GET_CPU_ID reg
+ lr \reg, [CTOP_AUX_LOGIC_GLOBAL_ID]
+#ifndef CONFIG_EZNPS_MTM_EXT
+ lsr \reg, \reg, 4
+#endif
+.endm
+
#endif /* __ASSEMBLY__ */
#endif /* _PLAT_EZNPS_CTOP_H */