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From: Stephen Boyd <sboyd@codeaurora.org>
To: David Brown <davidb@codeaurora.org>, Kumar Gala <galak@codeaurora.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	Lina Iyer <lina.iyer@linaro.org>
Subject: [PATCH 6/8] msm: scm: Add a feat version query API
Date: Mon,  4 Aug 2014 18:31:48 -0700	[thread overview]
Message-ID: <1407202310-3359-7-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1407202310-3359-1-git-send-email-sboyd@codeaurora.org>

Some users of SCM need to detect features and also detect if
those features have certain versions available. Add this API.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
 arch/arm/mach-qcom/scm.c | 13 +++++++++++++
 arch/arm/mach-qcom/scm.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/mach-qcom/scm.c b/arch/arm/mach-qcom/scm.c
index e80571f57ca4..7c62c03324f4 100644
--- a/arch/arm/mach-qcom/scm.c
+++ b/arch/arm/mach-qcom/scm.c
@@ -410,3 +410,16 @@ int scm_is_call_available(u32 svc_id, u32 cmd_id)
 	return ret_val;
 }
 EXPORT_SYMBOL(scm_is_call_available);
+
+#define GET_FEAT_VERSION_CMD	3
+int scm_get_feat_version(u32 feat)
+{
+	if (scm_is_call_available(SCM_SVC_INFO, GET_FEAT_VERSION_CMD)) {
+		u32 version;
+		if (!scm_call(SCM_SVC_INFO, GET_FEAT_VERSION_CMD, &feat,
+				sizeof(feat), &version, sizeof(version)))
+			return version;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(scm_get_feat_version);
diff --git a/arch/arm/mach-qcom/scm.h b/arch/arm/mach-qcom/scm.h
index f94c7279616a..6348b08524e7 100644
--- a/arch/arm/mach-qcom/scm.h
+++ b/arch/arm/mach-qcom/scm.h
@@ -26,5 +26,6 @@ extern s32 scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2);
 
 extern u32 scm_get_version(void);
 extern int scm_is_call_available(u32 svc_id, u32 cmd_id);
+extern int scm_get_feat_version(u32 feat);
 
 #endif
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

WARNING: multiple messages have this Message-ID (diff)
From: sboyd@codeaurora.org (Stephen Boyd)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/8] msm: scm: Add a feat version query API
Date: Mon,  4 Aug 2014 18:31:48 -0700	[thread overview]
Message-ID: <1407202310-3359-7-git-send-email-sboyd@codeaurora.org> (raw)
In-Reply-To: <1407202310-3359-1-git-send-email-sboyd@codeaurora.org>

Some users of SCM need to detect features and also detect if
those features have certain versions available. Add this API.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
---
 arch/arm/mach-qcom/scm.c | 13 +++++++++++++
 arch/arm/mach-qcom/scm.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/mach-qcom/scm.c b/arch/arm/mach-qcom/scm.c
index e80571f57ca4..7c62c03324f4 100644
--- a/arch/arm/mach-qcom/scm.c
+++ b/arch/arm/mach-qcom/scm.c
@@ -410,3 +410,16 @@ int scm_is_call_available(u32 svc_id, u32 cmd_id)
 	return ret_val;
 }
 EXPORT_SYMBOL(scm_is_call_available);
+
+#define GET_FEAT_VERSION_CMD	3
+int scm_get_feat_version(u32 feat)
+{
+	if (scm_is_call_available(SCM_SVC_INFO, GET_FEAT_VERSION_CMD)) {
+		u32 version;
+		if (!scm_call(SCM_SVC_INFO, GET_FEAT_VERSION_CMD, &feat,
+				sizeof(feat), &version, sizeof(version)))
+			return version;
+	}
+	return 0;
+}
+EXPORT_SYMBOL(scm_get_feat_version);
diff --git a/arch/arm/mach-qcom/scm.h b/arch/arm/mach-qcom/scm.h
index f94c7279616a..6348b08524e7 100644
--- a/arch/arm/mach-qcom/scm.h
+++ b/arch/arm/mach-qcom/scm.h
@@ -26,5 +26,6 @@ extern s32 scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2);
 
 extern u32 scm_get_version(void);
 extern int scm_is_call_available(u32 svc_id, u32 cmd_id);
+extern int scm_get_feat_version(u32 feat);
 
 #endif
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
hosted by The Linux Foundation

  parent reply	other threads:[~2014-08-05  1:33 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-05  1:31 [PATCH 0/8] qcom SCM updates Stephen Boyd
2014-08-05  1:31 ` Stephen Boyd
2014-08-05  1:31 ` [PATCH 1/8] msm: scm: Fix incorrect cache invalidation Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31 ` [PATCH 2/8] msm: scm: Get cacheline size from CTR Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31 ` [PATCH 3/8] msm: scm: Flush the command buffer only instead of the entire cache Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31 ` [PATCH 4/8] msm: scm: Add atomic SCM APIs Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31 ` [PATCH 5/8] msm: scm: Add API to query for service/command availability Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31 ` Stephen Boyd [this message]
2014-08-05  1:31   ` [PATCH 6/8] msm: scm: Add a feat version query API Stephen Boyd
2014-08-05  1:31 ` [PATCH 7/8] msm: scm: Add logging of actual return code from scm call Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  1:31 ` [PATCH 8/8] msm: scm: Move the scm driver to drivers/soc/qcom Stephen Boyd
2014-08-05  1:31   ` Stephen Boyd
2014-08-05  4:07   ` Lina Iyer
2014-08-05  4:07     ` Lina Iyer
2014-08-05 20:12     ` Bjorn Andersson
2014-08-05 20:12       ` Bjorn Andersson
2014-08-05 20:12       ` Bjorn Andersson
2014-08-05 20:17       ` Lina Iyer
2014-08-05 20:17         ` Lina Iyer
2014-08-05 20:17         ` Lina Iyer
2015-01-22  1:13   ` Olof Johansson
2015-01-22  1:13     ` Olof Johansson
2015-01-22  1:13     ` Olof Johansson
2015-01-22  1:53     ` Bjorn Andersson
2015-01-22  1:53       ` Bjorn Andersson
2015-01-22  1:53       ` Bjorn Andersson
2015-01-22 16:49       ` Kumar Gala
2015-01-22 16:49         ` Kumar Gala
2015-01-22 16:49         ` Kumar Gala
2015-01-23  1:19     ` Rob Clark
2015-01-23  1:19       ` Rob Clark
2015-01-23  1:19       ` Rob Clark
2014-09-17 22:08 ` [PATCH 0/8] qcom SCM updates Kumar Gala
2014-09-17 22:08   ` Kumar Gala

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