[9610] soc: samsung: el3_mon: Delete unused codes

This code is not used any more.

Change-Id: I42d183a5d72c43bef897b3c05d4ee6f9681c8e34
Signed-off-by: Junho Choi <junhosj.choi@samsung.com>

diff --git a/drivers/soc/samsung/exynos-el3_mon.c b/drivers/soc/samsung/exynos-el3_mon.c
index 46314a8924ecc91ab2eb89fa5b6a6838df2c48f6..46034e620cc2da3e8c1980366311733f341a4879 100644 (file)
--- a/drivers/soc/samsung/exynos-el3_mon.c
+++ b/drivers/soc/samsung/exynos-el3_mon.c
@@ -17,7 +17,6 @@
 
 #include <soc/samsung/exynos-el3_mon.h>
 
-static char *smc_lockup;
 static char *smc_debug_mem;
 
 #ifdef CONFIG_EXYNOS_KERNEL_PROTECTION
@@ -118,123 +117,6 @@ static int  __init exynos_set_debug_mem(void)
 }
 arch_initcall(exynos_set_debug_mem);
 
-static int  __init exynos_get_reason_mem(void)
-{
-       smc_lockup = kmalloc(PAGE_SIZE, GFP_KERNEL);
-
-       if (!smc_lockup) {
-               pr_err("%s: kmalloc for smc_lockup failed.\n", __func__);
-               smc_lockup = NULL;
-       }
-
-       return 0;
-}
-arch_initcall(exynos_get_reason_mem);
-
-struct __exception_info {
-       unsigned long exception_type;
-       unsigned long sp_el1;
-       unsigned long sp_el3;
-       unsigned long elr_el3;
-       unsigned long esr_el3;
-};
-
-struct __lockup_info {
-       struct __exception_info exception_info[NR_CPUS];
-};
-
-static const char *ename[] = {
-       "info38961",
-       "sync",
-       "irq",
-       "fiq",
-       "async",
-       "stack corruption",
-       "unknown"
-};
-
-static const char *el_mode[] = {
-       "el1 mode",
-       "el3 mode"
-};
-
-#define EXYNOS_EXCEPTION_FROM_SHIFT                    (63)
-
-#define EXYNOS_EXCEPTION_FROM_EL3                      (1)
-#define EXYNOS_EXCEPTION_FROM_EL1                      (0)
-
-
-static int exynos_parse_reason(struct __lockup_info *ptr)
-{
-       int i, count, ekind, efrom;
-       struct __lockup_info *lockup_info = ptr;
-       unsigned long etype, elr_el3, sp_el1, sp_el3, esr_el3;
-
-       for(i = 0, count = 0; i < NR_CPUS; i++) {
-               etype = lockup_info->exception_info[i].exception_type;
-
-               if (!etype) {
-                       /* this core has not got stuck in EL3 monitor */
-                       continue;
-               }
-
-               /* add 1 to count for the core got stuck in EL3 monitor */
-               count++;
-
-               /* parsing the information */
-               ekind = (etype & 0xf) > 6 ? 6 : (etype & 0xf) - 1;
-               efrom = (etype >> EXYNOS_EXCEPTION_FROM_SHIFT) & 0x1;
-               elr_el3 = lockup_info->exception_info[i].elr_el3;
-               sp_el1 = lockup_info->exception_info[i].sp_el1;
-               sp_el3 = lockup_info->exception_info[i].sp_el3;
-               esr_el3 = lockup_info->exception_info[i].esr_el3;
-
-               /* it got stuck due to unexpected exception */
-               pr_emerg("%s: %dth core gets stuck in EL3 monitor due to " \
-                       "%s exception from %s.\n", \
-                        __func__, i, ename[ekind], el_mode[efrom]);
-               pr_emerg("%s: elr 0x%lx sp_el1 0x%lx sp_el3 0x%lx " \
-                       "esr_el3 0x%lx\n", __func__, elr_el3, sp_el1, \
-                       sp_el3, esr_el3);
-       }
-
-       /* count should be more than '1' */
-       return !count;
-}
-
-int exynos_check_hardlockup_reason(void)
-{
-       int ret;
-       char *phys;
-
-       if (!smc_lockup) {
-               pr_err("%s: fail to alloc memory for storing lockup info.\n",
-                       __func__);
-               return 0;
-       }
-
-       /* to map & flush memory */
-       memset(smc_lockup, 0x00, PAGE_SIZE);
-       __flush_dcache_area(smc_lockup, PAGE_SIZE);
-
-       phys = (char *)virt_to_phys(smc_lockup);
-       pr_err("%s: smc_lockup virt: 0x%p phys: 0x%p size: %ld.\n",
-                       __func__, smc_lockup, phys, PAGE_SIZE);
-
-       ret = exynos_smc(SMC_CMD_GET_LOCKUP_REASON, (u64)phys, (u64)PAGE_SIZE, 0);
-
-       if (ret) {
-               pr_emerg("%s: SMC_CMD_GET_LOCKUP_REASON returns 0x%x. fail " \
-                       "to get the information.\n",  __func__, ret);
-               goto check_exit;
-       }
-
-       ret = exynos_parse_reason((struct __lockup_info *)smc_lockup);
-
-check_exit:
-       return ret;
-}
-
 static void exynos_smart_exception_handler(unsigned int id,
                                unsigned long elr, unsigned long esr,
                                unsigned long sctlr, unsigned long ttbr,