From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 534577E105; Mon, 8 Apr 2024 14:02:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712584970; cv=none; b=Jfj3H0YgAKJIh4kqQgAuQcO0GHQAJsX+3rpgm+GtI9YvF2MlXNT4/BJIueCTfZR633lTHq7tuLGHjU0cDhq0ZLciTefaHXvr6WvBxxw9170HP31fRtI1M8UaFPyZEtb8eQsgDAGKlQx/C7Edg+Q6ElIAWmHSbZGKaYAMDFIjB3U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712584970; c=relaxed/simple; bh=r01Ji3t9FrpPuXGQaDAcJkXMhfrDiXxn0rFN/u6puC8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Il8rhP2Z+Gz9kKxHR8iUxmH0WL+UqJLUs37B/FVORzYn/371OK3ljVxSJ73hKGKEP5hKeKwrlhhtpLp6qkjOFwWY8np0BbQb1RIypTBJ8YSCA87tqueUWA88vVdc05cnWLnwzjSFynZ+nDhEaWnIpRFsaWCJGDd9m98XZ4nOBms= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iAF7Ql+0; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iAF7Ql+0" Received: by smtp.kernel.org (Postfix) with ESMTPSA id CFEB0C433C7; Mon, 8 Apr 2024 14:02:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1712584970; bh=r01Ji3t9FrpPuXGQaDAcJkXMhfrDiXxn0rFN/u6puC8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iAF7Ql+0pkccClns79n7n2UB0Fh09CuYtPzxEXcl3ReOspJae4D1u+pn/31UDdIuu Q+gpiT7ElY2001AfE7yRDBbFKw84lkvney8u/iGwa6Yx5e1dPN470+8BXbaCADgbWA CEz8Y950e5CaTbHBX3vamRpyeoHeRkb0p10/ZWl8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Minas Harutyunyan Subject: [PATCH 5.15 588/690] usb: dwc2: host: Fix ISOC flow in DDMA mode Date: Mon, 8 Apr 2024 14:57:34 +0200 Message-ID: <20240408125420.879155676@linuxfoundation.org> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20240408125359.506372836@linuxfoundation.org> References: <20240408125359.506372836@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Minas Harutyunyan commit b258e42688501cadb1a6dd658d6f015df9f32d8f upstream. Fixed ISOC completion flow in DDMA mode. Added isoc descriptor actual length value and update urb's start_frame value. Fixed initialization of ISOC DMA descriptors flow. Fixes: 56f5b1cff22a ("staging: Core files for the DWC2 driver") Fixes: 20f2eb9c4cf8 ("staging: dwc2: add microframe scheduler from downstream Pi kernel") Fixes: c17b337c1ea4 ("usb: dwc2: host: program descriptor for next frame") Fixes: dc4c76e7b22c ("staging: HCD descriptor DMA support for the DWC2 driver") Fixes: 762d3a1a9cd7 ("usb: dwc2: host: process all completed urbs") CC: stable@vger.kernel.org Signed-off-by: Minas Harutyunyan Link: https://lore.kernel.org/r/a8b1e1711cc6cabfb45d92ede12e35445c66f06c.1708944698.git.Minas.Harutyunyan@synopsys.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc2/hcd.c | 12 ++++++++++-- drivers/usb/dwc2/hcd_ddma.c | 17 +++++++++++------ drivers/usb/dwc2/hw.h | 2 +- 3 files changed, 22 insertions(+), 9 deletions(-) --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -2734,8 +2734,11 @@ enum dwc2_transaction_type dwc2_hcd_sele hsotg->available_host_channels--; } qh = list_entry(qh_ptr, struct dwc2_qh, qh_list_entry); - if (dwc2_assign_and_init_hc(hsotg, qh)) + if (dwc2_assign_and_init_hc(hsotg, qh)) { + if (hsotg->params.uframe_sched) + hsotg->available_host_channels++; break; + } /* * Move the QH from the periodic ready schedule to the @@ -2768,8 +2771,11 @@ enum dwc2_transaction_type dwc2_hcd_sele hsotg->available_host_channels--; } - if (dwc2_assign_and_init_hc(hsotg, qh)) + if (dwc2_assign_and_init_hc(hsotg, qh)) { + if (hsotg->params.uframe_sched) + hsotg->available_host_channels++; break; + } /* * Move the QH from the non-periodic inactive schedule to the @@ -4176,6 +4182,8 @@ void dwc2_host_complete(struct dwc2_hsot urb->actual_length); if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) { + if (!hsotg->params.dma_desc_enable) + urb->start_frame = qtd->qh->start_active_frame; urb->error_count = dwc2_hcd_urb_get_error_count(qtd->urb); for (i = 0; i < urb->number_of_packets; ++i) { urb->iso_frame_desc[i].actual_length = --- a/drivers/usb/dwc2/hcd_ddma.c +++ b/drivers/usb/dwc2/hcd_ddma.c @@ -589,7 +589,7 @@ static void dwc2_init_isoc_dma_desc(stru idx = qh->td_last; inc = qh->host_interval; hsotg->frame_number = dwc2_hcd_get_frame_number(hsotg); - cur_idx = dwc2_frame_list_idx(hsotg->frame_number); + cur_idx = idx; next_idx = dwc2_desclist_idx_inc(qh->td_last, inc, qh->dev_speed); /* @@ -896,6 +896,8 @@ static int dwc2_cmpl_host_isoc_dma_desc( { struct dwc2_dma_desc *dma_desc; struct dwc2_hcd_iso_packet_desc *frame_desc; + u16 frame_desc_idx; + struct urb *usb_urb = qtd->urb->priv; u16 remain = 0; int rc = 0; @@ -908,8 +910,11 @@ static int dwc2_cmpl_host_isoc_dma_desc( DMA_FROM_DEVICE); dma_desc = &qh->desc_list[idx]; + frame_desc_idx = (idx - qtd->isoc_td_first) & (usb_urb->number_of_packets - 1); - frame_desc = &qtd->urb->iso_descs[qtd->isoc_frame_index_last]; + frame_desc = &qtd->urb->iso_descs[frame_desc_idx]; + if (idx == qtd->isoc_td_first) + usb_urb->start_frame = dwc2_hcd_get_frame_number(hsotg); dma_desc->buf = (u32)(qtd->urb->dma + frame_desc->offset); if (chan->ep_is_in) remain = (dma_desc->status & HOST_DMA_ISOC_NBYTES_MASK) >> @@ -930,7 +935,7 @@ static int dwc2_cmpl_host_isoc_dma_desc( frame_desc->status = 0; } - if (++qtd->isoc_frame_index == qtd->urb->packet_count) { + if (++qtd->isoc_frame_index == usb_urb->number_of_packets) { /* * urb->status is not used for isoc transfers here. The * individual frame_desc status are used instead. @@ -1035,11 +1040,11 @@ static void dwc2_complete_isoc_xfer_ddma return; idx = dwc2_desclist_idx_inc(idx, qh->host_interval, chan->speed); - if (!rc) + if (rc == 0) continue; - if (rc == DWC2_CMPL_DONE) - break; + if (rc == DWC2_CMPL_DONE || rc == DWC2_CMPL_STOP) + goto stop_scan; /* rc == DWC2_CMPL_STOP */ --- a/drivers/usb/dwc2/hw.h +++ b/drivers/usb/dwc2/hw.h @@ -728,7 +728,7 @@ #define TXSTS_QTOP_TOKEN_MASK (0x3 << 25) #define TXSTS_QTOP_TOKEN_SHIFT 25 #define TXSTS_QTOP_TERMINATE BIT(24) -#define TXSTS_QSPCAVAIL_MASK (0xff << 16) +#define TXSTS_QSPCAVAIL_MASK (0x7f << 16) #define TXSTS_QSPCAVAIL_SHIFT 16 #define TXSTS_FSPCAVAIL_MASK (0xffff << 0) #define TXSTS_FSPCAVAIL_SHIFT 0