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From: Chunfeng Yun <chunfeng.yun@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>,
	Mathias Nyman <mathias.nyman@intel.com>
Cc: Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	<linux-usb@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-mediatek@lists.infradead.org>,
	<devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	Eddie Hung <eddie.hung@mediatek.com>
Subject: [PATCH RESEND 6/9] usb: xhci-mtk: update fs bus bandwidth by bw_budget_table
Date: Tue, 17 Aug 2021 16:36:26 +0800	[thread overview]
Message-ID: <1629189389-18779-6-git-send-email-chunfeng.yun@mediatek.com> (raw)
In-Reply-To: <1629189389-18779-1-git-send-email-chunfeng.yun@mediatek.com>

Use @bw_budget_table[] to update fs bus bandwidth due to
not all microframes consume @bw_cost_per_microframe, see
setup_sch_info().

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
---
 drivers/usb/host/xhci-mtk-sch.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/host/xhci-mtk-sch.c b/drivers/usb/host/xhci-mtk-sch.c
index 0bb1a6295d64..10c0f0f6461f 100644
--- a/drivers/usb/host/xhci-mtk-sch.c
+++ b/drivers/usb/host/xhci-mtk-sch.c
@@ -458,8 +458,8 @@ static int check_fs_bus_bw(struct mu3h_sch_ep_info *sch_ep, int offset)
 		 * Compared with hs bus, no matter what ep type,
 		 * the hub will always delay one uframe to send data
 		 */
-		for (j = 0; j < sch_ep->cs_count; j++) {
-			tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_cost_per_microframe;
+		for (j = 0; j < sch_ep->num_budget_microframes; j++) {
+			tmp = tt->fs_bus_bw[base + j] + sch_ep->bw_budget_table[j];
 			if (tmp > FS_PAYLOAD_MAX)
 				return -ESCH_BW_OVERFLOW;
 		}
@@ -534,21 +534,18 @@ 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;
-	int bw_updated;
 	int i, j;
 
 	num_esit = XHCI_MTK_MAX_ESIT / sch_ep->esit;
 
-	if (used)
-		bw_updated = sch_ep->bw_cost_per_microframe;
-	else
-		bw_updated = -sch_ep->bw_cost_per_microframe;
-
 	for (i = 0; i < num_esit; i++) {
 		base = sch_ep->offset + i * sch_ep->esit;
 
-		for (j = 0; j < sch_ep->cs_count; j++)
-			tt->fs_bus_bw[base + j] += bw_updated;
+		for (j = 0; j < sch_ep->num_budget_microframes; j++)
+			if (used)
+				tt->fs_bus_bw[base + j] += sch_ep->bw_budget_table[j];
+			else
+				tt->fs_bus_bw[base + j] -= sch_ep->bw_budget_table[j];
 	}
 
 	if (used)
-- 
2.18.0


  parent reply	other threads:[~2021-08-17  8:37 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-17  8:36 [PATCH RESEND 1/9] dt-bindings: usb: mtk-xhci: add optional property to disable usb2 ports Chunfeng Yun
2021-08-17  8:36 ` [PATCH RESEND 2/9] dt-bindings: usb: mtk-xhci: add compatible for mt8195 Chunfeng Yun
2021-08-17  8:36 ` [PATCH RESEND 3/9] usb: xhci-mtk: fix use-after-free of mtk->hcd Chunfeng Yun
2021-08-17  8:36 ` [PATCH RESEND 4/9] usb: xhci-mtk: support option to disable usb2 ports Chunfeng Yun
2021-08-17  8:36 ` [PATCH RESEND 5/9] usb: xhci-mtk: fix issue of out-of-bounds array access Chunfeng Yun
2021-08-17  8:36 ` Chunfeng Yun [this message]
2021-08-17  8:36 ` [PATCH RESEND 7/9] usb: xhci-mtk: check boundary before check tt Chunfeng Yun
2021-08-17  8:36 ` [PATCH RESEND 8/9] usb: xhci-mtk: add a member of num_esit Chunfeng Yun
2021-08-17  8:36 ` [PATCH RESEND 9/9] usb: xhci-mtk: modify the SOF/ITP interval for mt8195 Chunfeng Yun
2021-08-18 14:10 ` [PATCH RESEND 1/9] dt-bindings: usb: mtk-xhci: add optional property to disable usb2 ports Rob Herring

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