diff options
| author | Zong Li <zong.li@sifive.com> | 2022-09-13 06:18:13 +0000 |
|---|---|---|
| committer | Palmer Dabbelt <palmer@rivosinc.com> | 2022-10-13 11:06:52 -0700 |
| commit | 95f196f3212bbc258611c22865aef12b98304e1d (patch) | |
| tree | 321d5ce09cc0b5df627463d0b0d942963ec518f0 /drivers | |
| parent | ca120a79cf5a3323172c82e77efd70ae10d120ef (diff) | |
| download | lwn-95f196f3212bbc258611c22865aef12b98304e1d.tar.gz lwn-95f196f3212bbc258611c22865aef12b98304e1d.zip | |
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')
| -rw-r--r-- | drivers/soc/sifive/sifive_ccache.c | 6 |
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"); |