From patchwork Wed Feb 5 12:18:01 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddharth Vadapalli X-Patchwork-Id: 13960897 Received: from fllvem-ot04.ext.ti.com (fllvem-ot04.ext.ti.com [198.47.19.246]) (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 7AAA622ACF3; Wed, 5 Feb 2025 12:18:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.47.19.246 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738757900; cv=none; b=RdUoWPAxufkT+394k7Ap+Gz90s5Hjq8XBxCMJUk9w5CbcTC/PRfhIn+wn1fIkeEXyvUHOLdn27MihObWRqMb5SMsUqHJq2arLOyxskYMSMRDdzHEIXEfNpyc66qA4GkYOTbRFy7pNkPaXj1aCyZ5UrEH1siooqk1kmSm01T2Tlk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738757900; c=relaxed/simple; bh=twv/zklPczSbnNe+2Biv8DEX5i3eV+yTDJPYWyQBI2w=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=evnCOHbPIkJRGFlvriIvWtJ8HWJ+iA5pfBL2srSwZOBLjrx4ndikRoCqrIElhMUA31o+l2xEo7bf507O/eKcxDZcRaALMu6jrisWd3nUVr4pRU0NJkfpoDk9ICWd09Xy+UJF1Eq7n52QS4I/Jjm18zEtb+IVywyOzFmtuT20SLU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com; spf=pass smtp.mailfrom=ti.com; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b=BigginXc; arc=none smtp.client-ip=198.47.19.246 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=ti.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ti.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="BigginXc" Received: from lelv0265.itg.ti.com ([10.180.67.224]) by fllvem-ot04.ext.ti.com (8.15.2/8.15.2) with ESMTPS id 515CI9MH2529619 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 5 Feb 2025 06:18:09 -0600 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1738757889; bh=urwHlgDO2lKuC9/wGjafEmW2fGbENgohK10qmloExbc=; h=From:To:CC:Subject:Date; b=BigginXcRnAdyEUjb12W009uOLlGrmFC2wMxOltdTIfpz/IolOl41kRFQmIrXP9rE hZ3HAsFj/mO0/ytFiJVRp5GWb6FIgQ9icVpZLzHkzpQTIXbLkyPEhLqoO2SeeCdVdn HVhFX7fAD4v1QMQMVY+FqF4bJ2RfZjVFzjTRrGc8= Received: from DLEE115.ent.ti.com (dlee115.ent.ti.com [157.170.170.26]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 515CI9GN009081 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 5 Feb 2025 06:18:09 -0600 Received: from DLEE111.ent.ti.com (157.170.170.22) by DLEE115.ent.ti.com (157.170.170.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 5 Feb 2025 06:18:09 -0600 Received: from lelvsmtp5.itg.ti.com (10.180.75.250) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Wed, 5 Feb 2025 06:18:09 -0600 Received: from uda0492258.dhcp.ti.com (uda0492258.dhcp.ti.com [10.24.72.104]) by lelvsmtp5.itg.ti.com (8.15.2/8.15.2) with ESMTP id 515CI6lk071061; Wed, 5 Feb 2025 06:18:06 -0600 From: Siddharth Vadapalli To: , CC: , , , , , Subject: [PATCH] dmaengine: ti: k3-udma: Enable second resource range for BCDMA and PKTDMA Date: Wed, 5 Feb 2025 17:48:01 +0530 Message-ID: <20250205121805.316792-1-s-vadapalli@ti.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: dmaengine@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-C2ProcessedOrg: 333ef613-75bf-4e12-a4b1-8e3623f5dcea The SoC DMA resources for UDMA, BCDMA and PKTDMA can be described via a combination of up to two resource ranges. The first resource range handles the default partitioning wherein all resources belonging to that range are allocated to a single entity and form a continuous range. For use-cases where the resources are shared across multiple entities and require to be described via discontinuous ranges, a second resource range is required. Currently, udma_setup_resources() supports handling resources that belong to the second range. Extend bcdma_setup_resources() and pktdma_setup_resources() to support the same. Signed-off-by: Siddharth Vadapalli Acked-by: Peter Ujfalusi --- drivers/dma/ti/k3-udma.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/dma/ti/k3-udma.c b/drivers/dma/ti/k3-udma.c index 7ed1956b4642..b223a7aacb0c 100644 --- a/drivers/dma/ti/k3-udma.c +++ b/drivers/dma/ti/k3-udma.c @@ -4886,6 +4886,12 @@ static int bcdma_setup_resources(struct udma_dev *ud) irq_res.desc[i].start = rm_res->desc[i].start + oes->bcdma_bchan_ring; irq_res.desc[i].num = rm_res->desc[i].num; + + if (rm_res->desc[i].num_sec) { + irq_res.desc[i].start_sec = rm_res->desc[i].start_sec + + oes->bcdma_bchan_ring; + irq_res.desc[i].num_sec = rm_res->desc[i].num_sec; + } } } } else { @@ -4909,6 +4915,15 @@ static int bcdma_setup_resources(struct udma_dev *ud) irq_res.desc[i + 1].start = rm_res->desc[j].start + oes->bcdma_tchan_ring; irq_res.desc[i + 1].num = rm_res->desc[j].num; + + if (rm_res->desc[j].num_sec) { + irq_res.desc[i].start_sec = rm_res->desc[j].start_sec + + oes->bcdma_tchan_data; + irq_res.desc[i].num_sec = rm_res->desc[j].num_sec; + irq_res.desc[i + 1].start_sec = rm_res->desc[j].start_sec + + oes->bcdma_tchan_ring; + irq_res.desc[i + 1].num_sec = rm_res->desc[j].num_sec; + } } } } @@ -4929,6 +4944,15 @@ static int bcdma_setup_resources(struct udma_dev *ud) irq_res.desc[i + 1].start = rm_res->desc[j].start + oes->bcdma_rchan_ring; irq_res.desc[i + 1].num = rm_res->desc[j].num; + + if (rm_res->desc[j].num_sec) { + irq_res.desc[i].start_sec = rm_res->desc[j].start_sec + + oes->bcdma_rchan_data; + irq_res.desc[i].num_sec = rm_res->desc[j].num_sec; + irq_res.desc[i + 1].start_sec = rm_res->desc[j].start_sec + + oes->bcdma_rchan_ring; + irq_res.desc[i + 1].num_sec = rm_res->desc[j].num_sec; + } } } } @@ -5063,6 +5087,12 @@ static int pktdma_setup_resources(struct udma_dev *ud) irq_res.desc[i].start = rm_res->desc[i].start + oes->pktdma_tchan_flow; irq_res.desc[i].num = rm_res->desc[i].num; + + if (rm_res->desc[i].num_sec) { + irq_res.desc[i].start_sec = rm_res->desc[i].start_sec + + oes->pktdma_tchan_flow; + irq_res.desc[i].num_sec = rm_res->desc[i].num_sec; + } } } rm_res = tisci_rm->rm_ranges[RM_RANGE_RFLOW]; @@ -5074,6 +5104,12 @@ static int pktdma_setup_resources(struct udma_dev *ud) irq_res.desc[i].start = rm_res->desc[j].start + oes->pktdma_rchan_flow; irq_res.desc[i].num = rm_res->desc[j].num; + + if (rm_res->desc[j].num_sec) { + irq_res.desc[i].start_sec = rm_res->desc[j].start_sec + + oes->pktdma_rchan_flow; + irq_res.desc[i].num_sec = rm_res->desc[j].num_sec; + } } } ret = ti_sci_inta_msi_domain_alloc_irqs(ud->dev, &irq_res);