ARC: Fix ICCM & DCCM runtime size checks

[ Upstream commit 43900edf67d7ef3ac8909854d75b8a1fba2d570c ]

As of today the ICCM and DCCM size checks are incorrectly using
mismatched units (KiB checked against bytes). The CONFIG_ARC_DCCM_SZ
and CONFIG_ARC_ICCM_SZ are in KiB, but the size calculated in
runtime and stored in cpu->dccm.sz and cpu->iccm.sz is in bytes.

Fix that.

Reported-by: Paul Greco <pmgreco@us.ibm.com>
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 7ee89dc..23dc002 100644 (file)
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -12,6 +12,7 @@
 #include <linux/clocksource.h>
 #include <linux/console.h>
 #include <linux/module.h>
+#include <linux/sizes.h>
 #include <linux/cpu.h>
 #include <linux/of_fdt.h>
 #include <linux/of.h>
@@ -409,12 +410,12 @@ static void arc_chk_core_config(void)
        if ((unsigned int)__arc_dccm_base != cpu->dccm.base_addr)
                panic("Linux built with incorrect DCCM Base address\n");
 
-       if (CONFIG_ARC_DCCM_SZ != cpu->dccm.sz)
+       if (CONFIG_ARC_DCCM_SZ * SZ_1K != cpu->dccm.sz)
                panic("Linux built with incorrect DCCM Size\n");
 #endif
 
 #ifdef CONFIG_ARC_HAS_ICCM
-       if (CONFIG_ARC_ICCM_SZ != cpu->iccm.sz)
+       if (CONFIG_ARC_ICCM_SZ * SZ_1K != cpu->iccm.sz)
                panic("Linux built with incorrect ICCM Size\n");
 #endif