diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2022-07-07 10:38:23 +0100 |
|---|---|---|
| committer | Georgi Djakov <djakov@kernel.org> | 2022-07-07 16:42:36 +0300 |
| commit | 751f4d14cdb47df3721d1a7431cc1d5a790f9302 (patch) | |
| tree | aa69f3ed75cfcae49cdcf3e5f1efd8b49dc5f40e /drivers/interconnect | |
| parent | f2906aa863381afb0015a9eb7fefad885d4e5a56 (diff) | |
| download | linux-751f4d14cdb47df3721d1a7431cc1d5a790f9302.tar.bz2 | |
interconnect: icc-rpm: Set destination bandwidth as well as source bandwidth
Make it possible to set destination as well as source bandwidth. If the
*dst pointer is non-NULL. Right now it appears that we never make the
destination bw allocation call, which is inconsistent with the downstream
way of doing this.
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Link: https://lore.kernel.org/r/20220707093823.1691870-1-bryan.odonoghue@linaro.org
Signed-off-by: Georgi Djakov <djakov@kernel.org>
Diffstat (limited to 'drivers/interconnect')
| -rw-r--r-- | drivers/interconnect/qcom/icc-rpm.c | 41 |
1 files changed, 30 insertions, 11 deletions
diff --git a/drivers/interconnect/qcom/icc-rpm.c b/drivers/interconnect/qcom/icc-rpm.c index fb013191c29b..7e8bcbb2f5db 100644 --- a/drivers/interconnect/qcom/icc-rpm.c +++ b/drivers/interconnect/qcom/icc-rpm.c @@ -233,10 +233,30 @@ static int qcom_icc_rpm_set(int mas_rpm_id, int slv_rpm_id, u64 sum_bw) return ret; } +static int __qcom_icc_set(struct icc_node *n, struct qcom_icc_node *qn, + u64 sum_bw) +{ + int ret; + + if (!qn->qos.ap_owned) { + /* send bandwidth request message to the RPM processor */ + ret = qcom_icc_rpm_set(qn->mas_rpm_id, qn->slv_rpm_id, sum_bw); + if (ret) + return ret; + } else if (qn->qos.qos_mode != -1) { + /* set bandwidth directly from the AP */ + ret = qcom_icc_qos_set(n, sum_bw); + if (ret) + return ret; + } + + return 0; +} + static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) { struct qcom_icc_provider *qp; - struct qcom_icc_node *qn; + struct qcom_icc_node *src_qn = NULL, *dst_qn = NULL; struct icc_provider *provider; struct icc_node *n; u64 sum_bw; @@ -246,7 +266,9 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) u32 agg_peak = 0; int ret, i; - qn = src->data; + src_qn = src->data; + if (dst) + dst_qn = dst->data; provider = src->provider; qp = to_qcom_provider(provider); @@ -257,21 +279,18 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) sum_bw = icc_units_to_bps(agg_avg); max_peak_bw = icc_units_to_bps(agg_peak); - if (!qn->qos.ap_owned) { - /* send bandwidth request message to the RPM processor */ - ret = qcom_icc_rpm_set(qn->mas_rpm_id, qn->slv_rpm_id, sum_bw); - if (ret) - return ret; - } else if (qn->qos.qos_mode != -1) { - /* set bandwidth directly from the AP */ - ret = qcom_icc_qos_set(src, sum_bw); + ret = __qcom_icc_set(src, src_qn, sum_bw); + if (ret) + return ret; + if (dst_qn) { + ret = __qcom_icc_set(dst, dst_qn, sum_bw); if (ret) return ret; } rate = max(sum_bw, max_peak_bw); - do_div(rate, qn->buswidth); + do_div(rate, src_qn->buswidth); rate = min_t(u64, rate, LONG_MAX); for (i = 0; i < qp->num_clks; i++) { |