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authorEugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>2020-04-02 20:54:28 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-06-11 09:21:38 +0200
commit50bca976d9999016a3394d1ba7bed69b8b83e92b (patch)
treefeae536703bbe14c981d3b54dd0f02cfaece3612 /arch/arc
parent2328a3bb3fe943ff5dc399a24668eb2ebabc4322 (diff)
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>
Diffstat (limited to 'arch/arc')
-rw-r--r--arch/arc/kernel/setup.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 3013f3f82b95..66e4dc8bce1d 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -12,6 +12,7 @@
#include <linux/root_dev.h>
#include <linux/console.h>
#include <linux/module.h>
+#include <linux/sizes.h>
#include <linux/cpu.h>
#include <linux/clk-provider.h>
#include <linux/of_fdt.h>
@@ -308,12 +309,12 @@ 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