From: Elliot Berman <eberman@codeaurora.org>
To: bjorn.andersson@linaro.org, saipraka@codeaurora.org, agross@kernel.org
Cc: tsoni@codeaurora.org, sidgup@codeaurora.org,
psodagud@codeaurora.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org,
Elliot Berman <eberman@codeaurora.org>
Subject: [RFC 07/17] firmware: qcom_scm-64: Remove qcom_scm_call_do_smccc
Date: Tue, 29 Oct 2019 12:40:55 -0700 [thread overview]
Message-ID: <1572378065-4490-8-git-send-email-eberman@codeaurora.org> (raw)
In-Reply-To: <1572378065-4490-1-git-send-email-eberman@codeaurora.org>
Remove thin wrapper to qcom_scm_call_do_smccc because it doesn't do
enough of anything interesting to dedicate its own function.
Signed-off-by: Elliot Berman <eberman@codeaurora.org>
---
drivers/firmware/qcom_scm-64.c | 46 ++++++++++++++++++------------------------
1 file changed, 20 insertions(+), 26 deletions(-)
diff --git a/drivers/firmware/qcom_scm-64.c b/drivers/firmware/qcom_scm-64.c
index cd694a2..6660539 100644
--- a/drivers/firmware/qcom_scm-64.c
+++ b/drivers/firmware/qcom_scm-64.c
@@ -90,31 +90,6 @@ static void __qcom_scm_call_do_quirk(const struct qcom_scm_desc *desc,
} while (res->a0 == QCOM_SCM_INTERRUPTED);
}
-static void qcom_scm_call_do_smccc(const struct qcom_scm_desc *desc,
- struct arm_smccc_res *res, u64 x5, bool atomic)
-{
- int retry_count = 0;
-
- if (atomic) {
- __qcom_scm_call_do_quirk(desc, res, x5, ARM_SMCCC_FAST_CALL);
- return;
- }
-
- do {
- mutex_lock(&qcom_scm_lock);
-
- __qcom_scm_call_do_quirk(desc, res, x5, ARM_SMCCC_STD_CALL);
-
- mutex_unlock(&qcom_scm_lock);
-
- if (res->a0 == QCOM_SCM_V2_EBUSY) {
- if (retry_count++ > QCOM_SCM_EBUSY_MAX_RETRY)
- break;
- msleep(QCOM_SCM_EBUSY_WAIT_MS);
- }
- } while (res->a0 == QCOM_SCM_V2_EBUSY);
-}
-
static int ___qcom_scm_call_smccc(struct device *dev,
struct qcom_scm_desc *desc, bool atomic)
{
@@ -160,7 +135,26 @@ static int ___qcom_scm_call_smccc(struct device *dev,
x5 = args_phys;
}
- qcom_scm_call_do_smccc(desc, &res, x5, atomic);
+ if (atomic) {
+ __qcom_scm_call_do_quirk(desc, &res, x5, ARM_SMCCC_FAST_CALL);
+ } else {
+ int retry_count = 0;
+
+ do {
+ mutex_lock(&qcom_scm_lock);
+
+ __qcom_scm_call_do_quirk(desc, &res, x5,
+ ARM_SMCCC_STD_CALL);
+
+ mutex_unlock(&qcom_scm_lock);
+
+ if (res.a0 == QCOM_SCM_V2_EBUSY) {
+ if (retry_count++ > QCOM_SCM_EBUSY_MAX_RETRY)
+ break;
+ msleep(QCOM_SCM_EBUSY_WAIT_MS);
+ }
+ } while (res.a0 == QCOM_SCM_V2_EBUSY);
+ }
if (args_virt) {
dma_unmap_single(dev, args_phys, alloc_len, DMA_TO_DEVICE);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2019-10-29 19:42 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-29 19:40 [RFC 00/17] Restructure, improve target support for qcom_scm driver Elliot Berman
2019-10-29 19:40 ` [RFC 01/17] firmware: qcom_scm: Rename macros and structures Elliot Berman
2019-10-29 19:40 ` [RFC 02/17] firmware: qcom_scm: Apply consistent naming scheme to command IDs Elliot Berman
2019-10-29 19:40 ` [RFC 03/17] firmware: qcom_scm: Order functions, definitions by service/command Elliot Berman
2019-10-29 19:40 ` [RFC 04/17] firmware: qcom_scm: Remove unused qcom_scm_get_version Elliot Berman
2019-10-29 19:40 ` [RFC 05/17] firmware: qcom_scm-64: Move svc/cmd/owner into qcom_scm_desc Elliot Berman
2019-10-29 19:40 ` [RFC 06/17] firmware: qcom_scm-64: Add SCM results to descriptor Elliot Berman
2019-10-29 19:40 ` Elliot Berman [this message]
2019-10-29 19:40 ` [RFC 08/17] firmware: qcom_scm-64: Move SMC register filling to qcom_scm_call_smccc Elliot Berman
2019-10-29 19:40 ` [RFC 09/17] firmware: qcom_scm-64: Improve SMC convention detection Elliot Berman
2019-10-29 19:40 ` [RFC 10/17] firmware: qcom_scm-32: Use SMC arch wrappers Elliot Berman
2019-10-29 19:40 ` [RFC 11/17] firmware: qcom_scm-32: Use qcom_scm_desc in non-atomic calls Elliot Berman
2019-10-29 19:41 ` [RFC 12/17] firmware: qcom_scm-32: Move SMCCC register filling to qcom_scm_call Elliot Berman
2019-10-29 19:41 ` [RFC 13/17] firmware: qcom_scm-32: Create common legacy atomic call Elliot Berman
2019-10-29 19:41 ` [RFC 14/17] firmware: qcom_scm-32: Add device argument to atomic calls Elliot Berman
2019-10-29 19:41 ` [RFC 15/17] firmware: qcom_scm: Merge legacy and SMCCC conventions Elliot Berman
2019-10-29 19:41 ` [RFC 16/17] firmware: qcom_scm: Enable legacy calling convention in qcom_scm-64.c Elliot Berman
2019-10-29 19:41 ` [RFC 17/17] firmware: qcom_scm: Rename -64 -> -smc, remove -32 Elliot Berman
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