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authorZong Li <zong.li@sifive.com>2022-09-13 09:18:13 +0300
committerPalmer Dabbelt <palmer@rivosinc.com>2022-10-13 21:06:52 +0300
commit95f196f3212bbc258611c22865aef12b98304e1d (patch)
tree321d5ce09cc0b5df627463d0b0d942963ec518f0 /drivers/soc
parentca120a79cf5a3323172c82e77efd70ae10d120ef (diff)
downloadlinux-95f196f3212bbc258611c22865aef12b98304e1d.tar.xz
soc: sifive: ccache: determine the cache level from dts
Composable cache could be L2 or L3 cache, use 'cache-level' property of device node to determine the level. Signed-off-by: Zong Li <zong.li@sifive.com> Reviewed-by: Conor Dooley <conor.dooley@microchip.com> Link: https://lore.kernel.org/r/20220913061817.22564-4-zong.li@sifive.com Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'drivers/soc')
-rw-r--r--drivers/soc/sifive/sifive_ccache.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/soc/sifive/sifive_ccache.c b/drivers/soc/sifive/sifive_ccache.c
index 949b824e89ad..b361b661ea09 100644
--- a/drivers/soc/sifive/sifive_ccache.c
+++ b/drivers/soc/sifive/sifive_ccache.c
@@ -38,6 +38,7 @@
static void __iomem *ccache_base;
static int g_irq[SIFIVE_CCACHE_MAX_ECCINTR];
static struct riscv_cacheinfo_ops ccache_cache_ops;
+static int level;
enum {
DIR_CORR = 0,
@@ -144,7 +145,7 @@ static const struct attribute_group *ccache_get_priv_group(struct cacheinfo
*this_leaf)
{
/* We want to use private group for composable cache only */
- if (this_leaf->level == 2)
+ if (this_leaf->level == level)
return &priv_attr_group;
else
return NULL;
@@ -215,6 +216,9 @@ static int __init sifive_ccache_init(void)
if (!ccache_base)
return -ENOMEM;
+ if (of_property_read_u32(np, "cache-level", &level))
+ return -ENOENT;
+
intr_num = of_property_count_u32_elems(np, "interrupts");
if (!intr_num) {
pr_err("CCACHE: no interrupts property\n");