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authorTakashi Iwai <tiwai@suse.de>2025-05-16 10:58:27 +0300
committerTakashi Iwai <tiwai@suse.de>2025-05-16 10:58:35 +0300
commita3d14d1602ca11429d242d230c31af8f822f614f (patch)
treecb15a4235841e657753505538e6715711e7cd151 /arch/openrisc/include/asm/cacheflush.h
parent1c116e5569ef3bd33be1d6f687b0270c0932838d (diff)
parent7b9938a14460e8ec7649ca2e80ac0aae9815bf02 (diff)
downloadlinux-a3d14d1602ca11429d242d230c31af8f822f614f.tar.xz
Merge branch 'for-linus' into for-next
Back-merge of 6.15 devel branch for further development of HD-audio stuff. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'arch/openrisc/include/asm/cacheflush.h')
-rw-r--r--arch/openrisc/include/asm/cacheflush.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/cacheflush.h b/arch/openrisc/include/asm/cacheflush.h
index 984c331ff5f4..0e60af486ec1 100644
--- a/arch/openrisc/include/asm/cacheflush.h
+++ b/arch/openrisc/include/asm/cacheflush.h
@@ -23,6 +23,9 @@
*/
extern void local_dcache_page_flush(struct page *page);
extern void local_icache_page_inv(struct page *page);
+extern void local_dcache_range_flush(unsigned long start, unsigned long end);
+extern void local_dcache_range_inv(unsigned long start, unsigned long end);
+extern void local_icache_range_inv(unsigned long start, unsigned long end);
/*
* Data cache flushing always happen on the local cpu. Instruction cache
@@ -39,6 +42,20 @@ extern void smp_icache_page_inv(struct page *page);
#endif /* CONFIG_SMP */
/*
+ * Even if the actual block size is larger than L1_CACHE_BYTES, paddr
+ * can be incremented by L1_CACHE_BYTES. When paddr is written to the
+ * invalidate register, the entire cache line encompassing this address
+ * is invalidated. Each subsequent reference to the same cache line will
+ * not affect the invalidation process.
+ */
+#define local_dcache_block_flush(addr) \
+ local_dcache_range_flush(addr, addr + L1_CACHE_BYTES)
+#define local_dcache_block_inv(addr) \
+ local_dcache_range_inv(addr, addr + L1_CACHE_BYTES)
+#define local_icache_block_inv(addr) \
+ local_icache_range_inv(addr, addr + L1_CACHE_BYTES)
+
+/*
* Synchronizes caches. Whenever a cpu writes executable code to memory, this
* should be called to make sure the processor sees the newly written code.
*/