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From: Shawn Guo <shawn.guo@linaro.org>
To: Will Deacon <will@kernel.org>
Cc: Robin Murphy <robin.murphy@arm.com>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Hanjun Guo <guohanjun@huawei.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	linux-arm-kernel@lists.infradead.org,
	linux-arm-msm@vger.kernel.org, Shawn Guo <shawn.guo@linaro.org>
Subject: [PATCH v2 2/3] ACPI/IORT: Add Qualcomm Snapdragon platforms to iort_plat_info[]
Date: Fri,  2 Apr 2021 11:56:01 +0800	[thread overview]
Message-ID: <20210402035602.9484-3-shawn.guo@linaro.org> (raw)
In-Reply-To: <20210402035602.9484-1-shawn.guo@linaro.org>

The SMMU driver on Qualcomm Snapdragon platforms needs to hook up some
QCOM specific arm_smmu_impl.  Define model identifier for QCOM SMMU and
add Qualcomm SC8180X platform to iort_plat_info[], so that SMMU
driver can detect the model and handle QCOM specific arm_smmu_impl.

Some device chooses to use manufacturer name in IORT table, like Lenovo
Flex 5G, while others use SoC vendor name, such as Microsoft Surface Pro
X and Samsung Galaxy Book S.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 drivers/acpi/arm64/iort.c | 5 +++++
 include/linux/acpi_iort.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c
index e2a96d2d399a..f88b8c0a7d84 100644
--- a/drivers/acpi/arm64/iort.c
+++ b/drivers/acpi/arm64/iort.c
@@ -1467,6 +1467,11 @@ static struct acpi_platform_list iort_plat_info[] __initdata = {
 	/* HiSilicon Hip08 Platform */
 	{"HISI  ", "HIP08   ", 0, ACPI_SIG_IORT, greater_than_or_equal,
 	 "Erratum #162001800", IORT_SMMU_V3_PMCG_HISI_HIP08},
+	/* Qualcomm Snapdragon Platform */
+	{ "LENOVO", "CB-01   ", 0x8180, ACPI_SIG_IORT, equal,
+	  "QCOM SMMU", IORT_SMMU_QCOM },
+	{ "QCOM  ", "QCOMEDK2", 0x8180, ACPI_SIG_IORT, equal,
+	  "QCOM SMMU", IORT_SMMU_QCOM },
 	{ }
 };
 
diff --git a/include/linux/acpi_iort.h b/include/linux/acpi_iort.h
index 678cdf036948..66c859ea2abf 100644
--- a/include/linux/acpi_iort.h
+++ b/include/linux/acpi_iort.h
@@ -21,6 +21,7 @@
  */
 #define IORT_SMMU_GENERIC		0x00000000 /* Generic SMMU */
 #define IORT_SMMU_V3_PMCG_HISI_HIP08	0x00000001 /* HiSilicon HIP08 PMCG */
+#define IORT_SMMU_QCOM			0x00000002 /* QCOM SMMU */
 
 struct iort_smmu_pdata {
 	struct acpi_iort_node *node;
-- 
2.17.1


  parent reply	other threads:[~2021-04-02  3:56 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-02  3:55 [PATCH v2 0/3] arm-smmu-qcom: Create qcom_smmu_impl for ACPI boot Shawn Guo
2021-04-02  3:56 ` [PATCH v2 1/3] ACPI/IORT: Consolidate use of SMMU device platdata Shawn Guo
2021-04-27 17:37   ` Robin Murphy
2021-05-09  2:14     ` Shawn Guo
2021-04-02  3:56 ` Shawn Guo [this message]
2021-04-27 17:41   ` [PATCH v2 2/3] ACPI/IORT: Add Qualcomm Snapdragon platforms to iort_plat_info[] Robin Murphy
2021-04-02  3:56 ` [PATCH v2 3/3] iommu/arm-smmu-qcom: hook up qcom_smmu_impl for ACPI boot Shawn Guo
2021-04-26  0:41 ` [PATCH v2 0/3] arm-smmu-qcom: Create " Shawn Guo

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