Changeset e064102 in mainline for kernel/genarch/src/drivers/dsrln/dsrlnout.c

Timestamp:

2019-03-31T19:24:35Z (6 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

124bc22, d6dc9a12

Parents:

f27e21d

Message:

dsrlnout_init() needs to get physical address too

The IO address we are passing into dsrlnout_init() should not be a
kernel-identity virtual address, because the device memory should not be
cacheable. Therefore, the function cannot use KA2PA to translate it
back to physical address when creating the parea.

File:

• kernel/genarch/src/drivers/dsrln/dsrlnout.c (modified) (2 diffs)

kernel/genarch/src/drivers/dsrln/dsrlnout.c

@@ -68 +68 @@
 };
 
-outdev_t *dsrlnout_init(ioport8_t *base)
+outdev_t *dsrlnout_init(ioport8_t *base, uintptr_t base_phys)
 {
         outdev_t *dsrlndev = malloc(sizeof(outdev_t));
@@ -85 +85 @@
         instance->base = base;
         ddi_parea_init(&instance->parea);
-        instance->parea.pbase = KA2PA(base);
+        instance->parea.pbase = base_phys;
         instance->parea.frames = 1;
         instance->parea.unpriv = false;