On Wed, 28 Feb 2018 14:06:08 PST (-0800), jeremy.linton@xxxxxxx wrote:
The original intent in cacheinfo was that an architecture
specific populate_cache_leaves() would probe the hardware
and then cache_shared_cpu_map_setup() and
cache_override_properties() would provide firmware help to
extend/expand upon what was probed. Arm64 was really
the only architecture that was working this way, and
with the removal of most of the hardware probing logic it
became clear that it was possible to simplify the logic a bit.
This patch combines the walk of the DT nodes with the
code updating the cache size/line_size and nr_sets.
cache_override_properties() (which was DT specific) is
then removed. The result is that cacheinfo.of_node is
no longer used as a temporary place to hold DT references
for future calls that update cache properties. That change
helps to clarify its one remaining use (matching
cacheinfo nodes that represent shared caches) which
will be used by the ACPI/PPTT code in the following patches.
Signed-off-by: Jeremy Linton <jeremy.linton@xxxxxxx>
---
arch/riscv/kernel/cacheinfo.c | 1 -
drivers/base/cacheinfo.c | 65 +++++++++++++++++++------------------------
2 files changed, 29 insertions(+), 37 deletions(-)
diff --git a/arch/riscv/kernel/cacheinfo.c b/arch/riscv/kernel/cacheinfo.c
index 10ed2749e246..0bc86e5f8f3f 100644
--- a/arch/riscv/kernel/cacheinfo.c
+++ b/arch/riscv/kernel/cacheinfo.c
@@ -20,7 +20,6 @@ static void ci_leaf_init(struct cacheinfo *this_leaf,
struct device_node *node,
enum cache_type type, unsigned int level)
{
- this_leaf->of_node = node;
this_leaf->level = level;
this_leaf->type = type;
/* not a sector cache */
diff --git a/drivers/base/cacheinfo.c b/drivers/base/cacheinfo.c
index 09ccef7ddc99..a872523e8951 100644
--- a/drivers/base/cacheinfo.c
+++ b/drivers/base/cacheinfo.c
@@ -71,7 +71,7 @@ static inline int get_cacheinfo_idx(enum cache_type type)
return type;
}
This looks good as far as RISC-V is concerned, though that's such a trivial
part of the changeset it's not worth that much :). Thanks!
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