[PATCH 08/10] microblaze: cache: introduce flush_dcache_range()
Ovidiu Panait
ovpanait at gmail.com
Mon Apr 11 18:26:32 CEST 2022
Align microblaze with the other architectures and provide an
implementation for flush_dcache_range(). Also, remove the microblaze
exception in drivers/core/device.c.
Signed-off-by: Ovidiu Panait <ovpanait at gmail.com>
---
arch/microblaze/cpu/cache.c | 8 ++++++++
drivers/core/device.c | 5 -----
2 files changed, 8 insertions(+), 5 deletions(-)
diff --git a/arch/microblaze/cpu/cache.c b/arch/microblaze/cpu/cache.c
index 60b6d549d7..cce33a6eb5 100644
--- a/arch/microblaze/cpu/cache.c
+++ b/arch/microblaze/cpu/cache.c
@@ -43,6 +43,14 @@ static void __flush_dcache(ulong addr, ulong size)
}
}
+void flush_dcache_range(unsigned long start, unsigned long end)
+{
+ if (start >= end)
+ return;
+
+ __flush_dcache(start, end - start);
+}
+
void flush_dcache_all(void)
{
__flush_dcache(0, CONFIG_XILINX_MICROBLAZE0_DEFAULT_CACHE_SIZE);
diff --git a/drivers/core/device.c b/drivers/core/device.c
index 1b356f12dd..16f808f2be 100644
--- a/drivers/core/device.c
+++ b/drivers/core/device.c
@@ -328,13 +328,8 @@ static void *alloc_priv(int size, uint flags)
* within this range at the start. The driver can then
* use normal flush-after-write, invalidate-before-read
* procedures.
- *
- * TODO(sjg at chromium.org): Drop this microblaze
- * exception.
*/
-#ifndef CONFIG_MICROBLAZE
flush_dcache_range((ulong)priv, (ulong)priv + size);
-#endif
}
} else {
priv = calloc(1, size);
--
2.25.1
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