rpmsg: glink: Add support to preallocate intents
The base intents prequeued during channel creation may not satisfy a channel's throughput requirement. Add support for intents dt-binding to allow channels to specify the size and amount of intents to prequeue during endpoint announcement. Signed-off-by: Chris Lew <clew@codeaurora.org> [bjorn: Altered how defaults are expressed] Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
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@ -1149,19 +1149,38 @@ static struct rpmsg_endpoint *qcom_glink_create_ept(struct rpmsg_device *rpdev,
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static int qcom_glink_announce_create(struct rpmsg_device *rpdev)
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static int qcom_glink_announce_create(struct rpmsg_device *rpdev)
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{
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{
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struct glink_channel *channel = to_glink_channel(rpdev->ept);
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struct glink_channel *channel = to_glink_channel(rpdev->ept);
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struct glink_core_rx_intent *intent;
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struct device_node *np = rpdev->dev.of_node;
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struct qcom_glink *glink = channel->glink;
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struct qcom_glink *glink = channel->glink;
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int num_intents = glink->intentless ? 0 : 5;
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struct glink_core_rx_intent *intent;
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const struct property *prop = NULL;
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__be32 defaults[] = { cpu_to_be32(SZ_1K), cpu_to_be32(5) };
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int num_intents;
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int num_groups = 1;
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__be32 *val = defaults;
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int size;
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/* Channel is now open, advertise base set of intents */
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if (glink->intentless)
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while (num_intents--) {
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return 0;
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intent = qcom_glink_alloc_intent(glink, channel, SZ_1K, true);
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if (!intent)
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break;
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qcom_glink_advertise_intent(glink, channel, intent);
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prop = of_find_property(np, "qcom,intents", NULL);
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if (prop) {
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val = prop->value;
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num_groups = prop->length / sizeof(u32) / 2;
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}
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}
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/* Channel is now open, advertise base set of intents */
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while (num_groups--) {
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size = be32_to_cpup(val++);
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num_intents = be32_to_cpup(val++);
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while (num_intents--) {
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intent = qcom_glink_alloc_intent(glink, channel, size,
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true);
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if (!intent)
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break;
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qcom_glink_advertise_intent(glink, channel, intent);
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}
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}
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return 0;
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return 0;
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}
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}
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