summaryrefslogtreecommitdiffstats
path: root/drivers/base/core.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2021-09-03 10:34:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-09-03 10:34:44 -0700
commit3de18c865f504ab59ed2588b1e11acd4bcb9ea09 (patch)
treea718decfd27fef64f8f922eb210c99228e890632 /drivers/base/core.c
parent14726903c835101cd8d0a703b609305094350d61 (diff)
parentf3c4b1341e8320e63f197a554fc5a25686a11d22 (diff)
downloadlinux-3de18c865f504ab59ed2588b1e11acd4bcb9ea09.tar.bz2
Merge branch 'stable/for-linus-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
Pull swiotlb updates from Konrad Rzeszutek Wilk: "A new feature called restricted DMA pools. It allows SWIOTLB to utilize per-device (or per-platform) allocated memory pools instead of using the global one. The first big user of this is ARM Confidential Computing where the memory for DMA operations can be set per platform" * 'stable/for-linus-5.15' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb: (23 commits) swiotlb: use depends on for DMA_RESTRICTED_POOL of: restricted dma: Don't fail device probe on rmem init failure of: Move of_dma_set_restricted_buffer() into device.c powerpc/svm: Don't issue ultracalls if !mem_encrypt_active() s390/pv: fix the forcing of the swiotlb swiotlb: Free tbl memory in swiotlb_exit() swiotlb: Emit diagnostic in swiotlb_exit() swiotlb: Convert io_default_tlb_mem to static allocation of: Return success from of_dma_set_restricted_buffer() when !OF_ADDRESS swiotlb: add overflow checks to swiotlb_bounce swiotlb: fix implicit debugfs declarations of: Add plumbing for restricted DMA pool dt-bindings: of: Add restricted DMA pool swiotlb: Add restricted DMA pool initialization swiotlb: Add restricted DMA alloc/free support swiotlb: Refactor swiotlb_tbl_unmap_single swiotlb: Move alloc_size to swiotlb_find_slots swiotlb: Use is_swiotlb_force_bounce for swiotlb data bouncing swiotlb: Update is_swiotlb_active to add a struct device argument swiotlb: Update is_swiotlb_buffer to add a struct device argument ...
Diffstat (limited to 'drivers/base/core.c')
-rw-r--r--drivers/base/core.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 688a592ad569..e65dd803a453 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -27,6 +27,7 @@
#include <linux/netdevice.h>
#include <linux/sched/signal.h>
#include <linux/sched/mm.h>
+#include <linux/swiotlb.h>
#include <linux/sysfs.h>
#include <linux/dma-map-ops.h> /* for dma_default_coherent */
@@ -2851,6 +2852,9 @@ void device_initialize(struct device *dev)
defined(CONFIG_ARCH_HAS_SYNC_DMA_FOR_CPU_ALL)
dev->dma_coherent = dma_default_coherent;
#endif
+#ifdef CONFIG_SWIOTLB
+ dev->dma_io_tlb_mem = &io_tlb_default_mem;
+#endif
}
EXPORT_SYMBOL_GPL(device_initialize);