Carveouts registered through the shared wc-ioremap helper are backed by I/O memory, but rproc_da_to_va() only reports that to its callers when mem->is_iomem is set on the carveout.
Without that flag, the remoteproc ELF loader and coredump paths can fall back to normal memcpy()/memset() accessors instead of the I/O helpers used for iomapped memory. Mark shared wc-ioremap carveouts as iomem so the framework uses the proper memcpy_toio(), memset_io(), and memcpy_fromio() accessors for these regions. Signed-off-by: Ben Levinsky <[email protected]> --- drivers/remoteproc/remoteproc_internal.h | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/remoteproc/remoteproc_internal.h b/drivers/remoteproc/remoteproc_internal.h index f5b34aabed5b..9955e512f073 100644 --- a/drivers/remoteproc/remoteproc_internal.h +++ b/drivers/remoteproc/remoteproc_internal.h @@ -136,6 +136,7 @@ static inline int rproc_mem_entry_ioremap_wc(struct rproc *rproc, } mem->va = (__force void *)va; + mem->is_iomem = true; return 0; } -- 2.34.1
