From: Vivek Gautam <vivek.gautam@codeaurora.org>
To: joro@8bytes.org, robh+dt@kernel.org, robin.murphy@arm.com,
will.deacon@arm.com, iommu@lists.linux-foundation.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
freedreno@lists.freedesktop.org
Cc: alex.williamson@redhat.com, mark.rutland@arm.com,
rjw@rjwysocki.net, robdclark@gmail.com, andy.gross@linaro.org,
linux-pm@vger.kernel.org, sboyd@kernel.org, tfiga@chromium.org,
jcrouse@codeaurora.org, sricharan@codeaurora.org,
m.szyprowski@samsung.com, architt@codeaurora.org,
linux-arm-msm@vger.kernel.org,
Vivek Gautam <vivek.gautam@codeaurora.org>
Subject: [Patch v15 5/5] iommu/arm-smmu: Add support for qcom,smmu-v2 variant
Date: Mon, 27 Aug 2018 16:25:51 +0530 [thread overview]
Message-ID: <20180827105551.16346-6-vivek.gautam@codeaurora.org> (raw)
In-Reply-To: <20180827105551.16346-1-vivek.gautam@codeaurora.org>
qcom,smmu-v2 is an arm,smmu-v2 implementation with specific
clock and power requirements.
On msm8996, multiple cores, viz. mdss, video, etc. use this
smmu. On sdm845, this smmu is used with gpu.
Add bindings for the same.
Signed-off-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Tested-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
Changes since v14:
- Moved out dt-bindings change to separate patch.
drivers/iommu/arm-smmu.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index b5e7f72d418c..c0177ea32678 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -119,6 +119,7 @@ enum arm_smmu_implementation {
GENERIC_SMMU,
ARM_MMU500,
CAVIUM_SMMUV2,
+ QCOM_SMMUV2,
};
struct arm_smmu_s2cr {
@@ -1970,6 +1971,17 @@ ARM_SMMU_MATCH_DATA(arm_mmu401, ARM_SMMU_V1_64K, GENERIC_SMMU);
ARM_SMMU_MATCH_DATA(arm_mmu500, ARM_SMMU_V2, ARM_MMU500);
ARM_SMMU_MATCH_DATA(cavium_smmuv2, ARM_SMMU_V2, CAVIUM_SMMUV2);
+static const char * const qcom_smmuv2_clks[] = {
+ "bus", "iface",
+};
+
+static const struct arm_smmu_match_data qcom_smmuv2 = {
+ .version = ARM_SMMU_V2,
+ .model = QCOM_SMMUV2,
+ .clks = qcom_smmuv2_clks,
+ .num_clks = ARRAY_SIZE(qcom_smmuv2_clks),
+};
+
static const struct of_device_id arm_smmu_of_match[] = {
{ .compatible = "arm,smmu-v1", .data = &smmu_generic_v1 },
{ .compatible = "arm,smmu-v2", .data = &smmu_generic_v2 },
@@ -1977,6 +1989,7 @@ static const struct of_device_id arm_smmu_of_match[] = {
{ .compatible = "arm,mmu-401", .data = &arm_mmu401 },
{ .compatible = "arm,mmu-500", .data = &arm_mmu500 },
{ .compatible = "cavium,smmu-v2", .data = &cavium_smmuv2 },
+ { .compatible = "qcom,smmu-v2", .data = &qcom_smmuv2 },
{ },
};
MODULE_DEVICE_TABLE(of, arm_smmu_of_match);
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
prev parent reply other threads:[~2018-08-27 10:57 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-27 10:55 [Patch v15 0/5] iommu/arm-smmu: Add runtime pm/sleep support Vivek Gautam
2018-08-27 10:55 ` [Patch v15 1/5] iommu/arm-smmu: Add pm_runtime/sleep ops Vivek Gautam
2018-08-27 10:55 ` [Patch v15 2/5] iommu/arm-smmu: Invoke pm_runtime during probe, add/remove device Vivek Gautam
2018-08-30 9:22 ` Vivek Gautam
2018-08-30 9:33 ` Tomasz Figa
2018-08-30 13:59 ` Vivek Gautam
2018-08-27 10:55 ` [Patch v15 3/5] iommu/arm-smmu: Add the device_link between masters and smmu Vivek Gautam
2018-08-27 10:55 ` [Patch v15 4/5] dt-bindings: arm-smmu: Add bindings for qcom,smmu-v2 Vivek Gautam
2018-08-28 20:34 ` Rob Herring
2018-08-29 8:35 ` Vivek Gautam
2018-08-29 11:23 ` Vivek Gautam
2018-08-30 0:43 ` Rob Herring
2018-08-31 9:51 ` Vivek Gautam
2018-08-27 10:55 ` Vivek Gautam [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180827105551.16346-6-vivek.gautam@codeaurora.org \
--to=vivek.gautam@codeaurora.org \
--cc=alex.williamson@redhat.com \
--cc=andy.gross@linaro.org \
--cc=architt@codeaurora.org \
--cc=devicetree@vger.kernel.org \
--cc=freedreno@lists.freedesktop.org \
--cc=iommu@lists.linux-foundation.org \
--cc=jcrouse@codeaurora.org \
--cc=joro@8bytes.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=m.szyprowski@samsung.com \
--cc=mark.rutland@arm.com \
--cc=rjw@rjwysocki.net \
--cc=robdclark@gmail.com \
--cc=robh+dt@kernel.org \
--cc=robin.murphy@arm.com \
--cc=sboyd@kernel.org \
--cc=sricharan@codeaurora.org \
--cc=tfiga@chromium.org \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).