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From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Ikjoon Jang <ikjn@chromium.org>
Cc: Yaqii wu <yaqii.wu@mediatek.com>, <srv_wsdupstream@mediatek.com>,
	<linux-mediatek@lists.infradead.org>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>
Subject: [RFC PATCH 2/6] usb: xhci-mtk: add a member of num_esit
Date: Mon, 23 Aug 2021 20:53:52 +0800	[thread overview]
Message-ID: <1629723236-10768-2-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1629723236-10768-1-git-send-email-chunfeng.yun@mediatek.com>

Add a member num_esit to save the number of esit, then no need
caculate it in some functions.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/host/xhci-mtk-sch.c | 20 +++++++-------------
 drivers/usb/host/xhci-mtk.h     |  2 ++
 2 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 83abd28269ca..54c521524bfc 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -297,6 +297,7 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 		 CTX_TO_MAX_ESIT_PAYLOAD(le32_to_cpu(ep_ctx->tx_info));
 
 	sch_ep->esit = get_esit(ep_ctx);
+	sch_ep->num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
 	sch_ep->ep_type = ep_type;
 	sch_ep->maxpkt = maxpkt;
 	sch_ep->offset = 0;
@@ -401,14 +402,12 @@ static void setup_sch_info(struct xhci_ep_ctx *ep_ctx,
 static u32 get_max_bw(struct mu3h_sch_bw_info *sch_bw,
 	struct mu3h_sch_ep_info *sch_ep, u32 offset)
 {
-	u32 num_esit;
 	u32 max_bw = 0;
 	u32 bw;
 	int i;
 	int j;
 
-	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
-	for (i = 0; i < num_esit; i++) {
+	for (i = 0; i < sch_ep->num_esit; i++) {
 		u32 base = offset + i * sch_ep->esit;
 
 		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
@@ -424,13 +423,11 @@ static u32 get_max_bw(struct mu3h_sch_bw_info *sch_bw,
 static void update_bus_bw(struct mu3h_sch_bw_info *sch_bw,
 	struct mu3h_sch_ep_info *sch_ep, bool used)
 {
-	u32 num_esit;
 	u32 base;
 	int i;
 	int j;
 
-	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
-	for (i = 0; i < num_esit; i++) {
+	for (i = 0; i < sch_ep->num_esit; i++) {
 		base = sch_ep->offset + i * sch_ep->esit;
 		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
 			if (used)
@@ -446,12 +443,11 @@ static void update_bus_bw(struct mu3h_sch_bw_info *sch_bw,
 static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
 {
 	struct mu3h_sch_tt *tt = sch_ep->sch_tt;
-	u32 num_esit, tmp;
+	u32 tmp;
 	int base;
 	int i, j;
 
-	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
-	for (i = 0; i < num_esit; i++) {
+	for (i = 0; i < sch_ep->num_esit; i++) {
 		base = offset + i * sch_ep->esit;
 
 		/*
@@ -533,12 +529,10 @@ static int check_sch_tt(struct mu3h_sch_ep_info *sch_ep, u32 offset)
 static void update_sch_tt(struct mu3h_sch_ep_info *sch_ep, bool used)
 {
 	struct mu3h_sch_tt *tt = sch_ep->sch_tt;
-	u32 base, num_esit;
+	u32 base;
 	int i, j;
 
-	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
-
-	for (i = 0; i < num_esit; i++) {
+	for (i = 0; i < sch_ep->num_esit; i++) {
 		base = sch_ep->offset + i * sch_ep->esit;
 
 		for (j = 0; j < sch_ep->num_budget_microframes; j++)
diff --git a/drivers/usb/host/xhci-mtk.h b/drivers/usb/host/xhci-mtk.h
index ace432356c41..eb05aaf6edbe 100644
--- a/drivers/usb/host/xhci-mtk.h
+++ b/drivers/usb/host/xhci-mtk.h
@@ -50,6 +50,7 @@ struct mu3h_sch_bw_info {
  * struct mu3h_sch_ep_info: schedule information for endpoint
  *
  * @esit: unit is 125us, equal to 2 << Interval field in ep-context
+ * @num_esit: number of @esit in a period
  * @num_budget_microframes: number of continuous uframes
  *		(@repeat==1) scheduled within the interval
  * @bw_cost_per_microframe: bandwidth cost per microframe
@@ -79,6 +80,7 @@ struct mu3h_sch_bw_info {
  */
 struct mu3h_sch_ep_info {
 	u32 esit;
+	u32 num_esit;
 	u32 num_budget_microframes;
 	u32 bw_cost_per_microframe;
 	struct list_head endpoint;
-- 
2.18.0
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  reply	other threads:[~2021-08-23 12:54 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-23 12:53 [RFC PATCH 1/6] usb: xhci-mtk: update fs bus bandwidth by bw_budget_table Chunfeng Yun
2021-08-23 12:53 ` Chunfeng Yun [this message]
2021-08-23 12:53 ` [RFC PATCH 3/6] usb: xhci-mtk: Do not use xhci's virt_dev in drop_endpoint Chunfeng Yun
2021-08-24  3:53   ` Ikjoon Jang
2021-08-24  9:15     ` Chunfeng Yun (云春峰)
2021-08-23 12:53 ` [RFC PATCH 4/6] usb: xhci-mtk: allow bandwidth table rollover Chunfeng Yun
2021-08-23 12:53 ` [RFC PATCH 5/6] dt-bindings: usb: mtk-xhci: support drop extra CS Chunfeng Yun
2021-08-23 12:53 ` [RFC PATCH 6/6] usb: xhci-mtk: Add " Chunfeng Yun

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