From e30eddc0aeb368814d2bbe0031e6b6ed768bdfcf Mon Sep 17 00:00:00 2001
From: "Suren A. Chilingaryan" <csa@suren.me>
Date: Wed, 18 Nov 2015 06:28:28 +0100
Subject: Enforce 64-bit dma mask from IPEDMA if supported

---
 pcilib/pci.c | 7 +++++++
 pcilib/pci.h | 2 ++
 2 files changed, 9 insertions(+)

(limited to 'pcilib')

diff --git a/pcilib/pci.c b/pcilib/pci.c
index 4b8b8bb..e45aaba 100644
--- a/pcilib/pci.c
+++ b/pcilib/pci.c
@@ -431,3 +431,10 @@ const pcilib_pcie_link_info_t *pcilib_get_pcie_link_info(pcilib_t *ctx) {
 
     return &ctx->link_info;
 }
+
+int pcilib_set_dma_mask(pcilib_t *ctx, int mask) {
+    if (ioctl( ctx->handle, PCIDRIVER_IOC_SET_DMA_MASK, mask ) < 0)
+	return PCILIB_ERROR_FAILED;
+
+    return 0;
+}
diff --git a/pcilib/pci.h b/pcilib/pci.h
index 50c6c0e..bf977fc 100644
--- a/pcilib/pci.h
+++ b/pcilib/pci.h
@@ -118,6 +118,8 @@ const pcilib_pcie_link_info_t *pcilib_get_pcie_link_info(pcilib_t *ctx);
 int pcilib_map_register_space(pcilib_t *ctx);
 int pcilib_map_data_space(pcilib_t *ctx, uintptr_t addr);
 
+int pcilib_set_dma_mask(pcilib_t *ctx, int mask);
+
 #ifdef __cplusplus
 }
 #endif
-- 
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