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From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
To: robh+dt@kernel.org, catalin.marinas@arm.com, hch@lst.de,
	ardb@kernel.org, linux-kernel@vger.kernel.org,
	Frank Rowand <frowand.list@gmail.com>
Cc: robin.murphy@arm.com, linux-arm-kernel@lists.infradead.org,
	linux-rpi-kernel@lists.infradead.org, jeremy.linton@arm.com,
	iommu@lists.linux-foundation.org, devicetree@vger.kernel.org,
	will@kernel.org, lorenzo.pieralisi@arm.com, guohanjun@huawei.com,
	Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
	Rob Herring <robh@kernel.org>
Subject: [PATCH v7 4/7] of: unittest: Add test for of_dma_get_max_cpu_address()
Date: Thu, 19 Nov 2020 18:53:56 +0100	[thread overview]
Message-ID: <20201119175400.9995-5-nsaenzjulienne@suse.de> (raw)
In-Reply-To: <20201119175400.9995-1-nsaenzjulienne@suse.de>

Introduce a test for of_dma_get_max_cup_address(), it uses the same DT
data as the rest of dma-ranges unit tests.

Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Reviewed-by: Rob Herring <robh@kernel.org>

---
Changes since v5:
- Update address expected by test

Changes since v3:
 - Remove HAS_DMA guards

 drivers/of/unittest.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c
index 06cc988faf78..98cc0163301b 100644
--- a/drivers/of/unittest.c
+++ b/drivers/of/unittest.c
@@ -869,6 +869,23 @@ static void __init of_unittest_changeset(void)
 #endif
 }
 
+static void __init of_unittest_dma_get_max_cpu_address(void)
+{
+	struct device_node *np;
+	phys_addr_t cpu_addr;
+
+	np = of_find_node_by_path("/testcase-data/address-tests");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	cpu_addr = of_dma_get_max_cpu_address(np);
+	unittest(cpu_addr == 0x4fffffff,
+		 "of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %x)\n",
+		 &cpu_addr, 0x4fffffff);
+}
+
 static void __init of_unittest_dma_ranges_one(const char *path,
 		u64 expect_dma_addr, u64 expect_paddr)
 {
@@ -3266,6 +3283,7 @@ static int __init of_unittest(void)
 	of_unittest_changeset();
 	of_unittest_parse_interrupts();
 	of_unittest_parse_interrupts_extended();
+	of_unittest_dma_get_max_cpu_address();
 	of_unittest_parse_dma_ranges();
 	of_unittest_pci_dma_ranges();
 	of_unittest_match_node();
-- 
2.29.2


  parent reply	other threads:[~2020-11-19 17:54 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-19 17:53 [PATCH v7 0/7] arm64: Default to 32-bit wide ZONE_DMA Nicolas Saenz Julienne
2020-11-19 17:53 ` [PATCH v7 1/7] arm64: mm: Move reserve_crashkernel() into mem_init() Nicolas Saenz Julienne
2020-11-19 17:53 ` [PATCH v7 2/7] arm64: mm: Move zone_dma_bits initialization into zone_sizes_init() Nicolas Saenz Julienne
2020-11-19 17:53 ` [PATCH v7 3/7] of/address: Introduce of_dma_get_max_cpu_address() Nicolas Saenz Julienne
2020-11-19 17:53 ` Nicolas Saenz Julienne [this message]
2020-11-19 17:53 ` [PATCH v7 5/7] arm64: mm: Set ZONE_DMA size based on devicetree's dma-ranges Nicolas Saenz Julienne
2020-11-19 17:53 ` [PATCH v7 6/7] arm64: mm: Set ZONE_DMA size based on early IORT scan Nicolas Saenz Julienne
2020-11-19 17:53 ` [PATCH v7 7/7] mm: Remove examples from enum zone_type comment Nicolas Saenz Julienne
2020-11-20 11:39 ` [PATCH v7 0/7] arm64: Default to 32-bit wide ZONE_DMA Catalin Marinas
2022-03-01  3:00 ` Matt Flax
2022-03-01 10:56   ` Robin Murphy

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