From patchwork Tue Nov 16 17:00:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anilkumar Kolli X-Patchwork-Id: 12622981 X-Patchwork-Delegate: kvalo@adurom.com Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 55161C433F5 for ; Tue, 16 Nov 2021 17:01:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2B8FD61A58 for ; Tue, 16 Nov 2021 17:01:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236985AbhKPREM (ORCPT ); Tue, 16 Nov 2021 12:04:12 -0500 Received: from so254-9.mailgun.net ([198.61.254.9]:18858 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229509AbhKPREM (ORCPT ); Tue, 16 Nov 2021 12:04:12 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1637082074; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=MrK9j2QZk1ZGDNZgY2wAkzH6DM7jjJ1uP/Qbz7v7jE0=; b=SNAtUK+Lr6Dmlbx2mBpdWMUn//t/qOrFm/dwL/N3sA8dg7oTHbJir/ZSQXeAAPtr3KtOD0it XoWNhFzhBEu5JEwX/o6G+setvosnZZdBztMyICvTOW7s6rn+fuY1yWELrOIeYz0y5HevcRkl 4a8O+v0KWOcbdjBFE0SYjtdGFrI= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n07.prod.us-west-2.postgun.com with SMTP id 6193e3d811cd6d4077c4a49d (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Tue, 16 Nov 2021 17:01:12 GMT Sender: akolli=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id BF897C4360C; Tue, 16 Nov 2021 17:01:12 +0000 (UTC) Received: from akolli-linux.qualcomm.com (blr-c-bdr-fw-01_GlobalNAT_AllZones-Outside.qualcomm.com [103.229.19.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: akolli) by smtp.codeaurora.org (Postfix) with ESMTPSA id 5EFA8C4360D; Tue, 16 Nov 2021 17:01:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org 5EFA8C4360D Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=codeaurora.org From: Anilkumar Kolli To: ath11k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, devicetree@vger.kernel.org, robh@kernel.org, Anilkumar Kolli Subject: [PATCH v2 2/2] ath11k: Use reserved host DDR addresses from DT for PCI devices Date: Tue, 16 Nov 2021 22:30:58 +0530 Message-Id: <1637082058-6398-2-git-send-email-akolli@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637082058-6398-1-git-send-email-akolli@codeaurora.org> References: <1637082058-6398-1-git-send-email-akolli@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Host DDR memory (contiguous 45 MB in mode-0 or 15 MB in mode-2) is reserved through DT entries for firmware usage. Send the base address and size from DT entries. If DT entry is available, PCI devices work with fixed_mem_region else host allocates multiple segments. IPQ8074 on HK10 board supports multiple PCI devices. IPQ8074 + QCN9074 is tested with this patch. Tested-on: QCN9074 hw1.0 PCI WLAN.HK.2.4.0.1-01838-QCAHKSWPL_SILICONZ-1 Signed-off-by: Anilkumar Kolli --- V2: - Use of_ API to read from dt node (Rob) drivers/net/wireless/ath/ath11k/mhi.c | 42 ++++++++++++++++++-- drivers/net/wireless/ath/ath11k/pci.c | 10 ++++- drivers/net/wireless/ath/ath11k/qmi.c | 75 +++++++++++++++++++++++++++++++---- drivers/net/wireless/ath/ath11k/qmi.h | 1 + 4 files changed, 116 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 26c7ae242db6..0ea6ab7edeb9 100644 --- a/drivers/net/wireless/ath/ath11k/mhi.c +++ b/drivers/net/wireless/ath/ath11k/mhi.c @@ -3,6 +3,7 @@ #include #include +#include #include "core.h" #include "debug.h" @@ -316,7 +317,11 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci) struct ath11k_base *ab = ab_pci->ab; struct mhi_controller *mhi_ctrl; struct mhi_controller_config *ath11k_mhi_config; - int ret; + struct device_node *np; + int ret, len, sw, aw; + u32 *reg, *reg_end; + unsigned long start, size; + bool no_dt_entry = 0; mhi_ctrl = mhi_alloc_controller(); if (!mhi_ctrl) @@ -339,8 +344,39 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci) return ret; } - mhi_ctrl->iova_start = 0; - mhi_ctrl->iova_stop = 0xffffffff; + np = of_find_node_by_type(NULL, "memory"); + if (!np) { + no_dt_entry = 1; + goto no_dt_entry; + } + + aw = of_n_addr_cells(np); + sw = of_n_size_cells(np); + + reg = (unsigned int *)of_get_property(np, "reg", &len); + if (!reg) { + no_dt_entry = 1; + goto no_dt_entry; + } + + reg_end = reg + len / (aw * sw); + + do { + start = of_read_number(reg, aw); + reg += aw; + size = of_read_number(reg, sw); + reg += sw; + } while (reg < reg_end); + +no_dt_entry: + if (no_dt_entry) { + mhi_ctrl->iova_start = 0; + mhi_ctrl->iova_stop = 0xFFFFFFFF; + } else { + mhi_ctrl->iova_start = (dma_addr_t)(start + 0x1000000); + mhi_ctrl->iova_stop = (dma_addr_t)(start + size); + } + mhi_ctrl->sbl_size = SZ_512K; mhi_ctrl->seg_len = SZ_512K; mhi_ctrl->fbc_download = true; diff --git a/drivers/net/wireless/ath/ath11k/pci.c b/drivers/net/wireless/ath/ath11k/pci.c index 3d353e7c9d5c..21d0a511d9c7 100644 --- a/drivers/net/wireless/ath/ath11k/pci.c +++ b/drivers/net/wireless/ath/ath11k/pci.c @@ -6,6 +6,7 @@ #include #include #include +#include #include "pci.h" #include "core.h" @@ -1225,7 +1226,7 @@ static int ath11k_pci_probe(struct pci_dev *pdev, { struct ath11k_base *ab; struct ath11k_pci *ab_pci; - u32 soc_hw_version_major, soc_hw_version_minor; + u32 soc_hw_version_major, soc_hw_version_minor, addr; int ret; ab = ath11k_core_alloc(&pdev->dev, sizeof(*ab_pci), ATH11K_BUS_PCI, @@ -1245,6 +1246,13 @@ static int ath11k_pci_probe(struct pci_dev *pdev, pci_set_drvdata(pdev, ab); spin_lock_init(&ab_pci->window_lock); + /* Set fixed_mem_region to true for platforms support reserved memory + * from DT. If memory is reserved from DT for FW, ath11k driver need not + * allocate memory. + */ + if (!of_property_read_u32(ab->dev->of_node, "memory-region", &addr)) + ab->bus_params.fixed_mem_region = true; + ret = ath11k_pci_claim(ab_pci, pdev); if (ret) { ath11k_err(ab, "failed to claim device: %d\n", ret); diff --git a/drivers/net/wireless/ath/ath11k/qmi.c b/drivers/net/wireless/ath/ath11k/qmi.c index fa73118de6db..da58ce36b477 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.c +++ b/drivers/net/wireless/ath/ath11k/qmi.c @@ -1815,10 +1815,11 @@ static void ath11k_qmi_free_target_mem_chunk(struct ath11k_base *ab) { int i; - if (ab->bus_params.fixed_mem_region) - return; - for (i = 0; i < ab->qmi.mem_seg_count; i++) { + if (ab->bus_params.fixed_mem_region && + ab->qmi.target_mem[i].iaddr) + iounmap(ab->qmi.target_mem[i].iaddr); + if (!ab->qmi.target_mem[i].vaddr) continue; @@ -1866,10 +1867,62 @@ static int ath11k_qmi_alloc_target_mem_chunk(struct ath11k_base *ab) static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab) { - int i, idx; + struct device *dev = ab->dev; + struct device_node *hremote_node = NULL; + phandle hremote_phandle; + int i, idx, len, sw, aw, host_ddr_sz; + u32 *reg, *reg_end; + u64 start, size; for (i = 0, idx = 0; i < ab->qmi.mem_seg_count; i++) { switch (ab->qmi.target_mem[i].type) { + case HOST_DDR_REGION_TYPE: + if (of_property_read_u32(dev->of_node, "memory-region", + &hremote_phandle)) { + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi fail to get hremote phandle\n"); + return 0; + } + + hremote_node = of_find_node_by_phandle(hremote_phandle); + if (!hremote_node) { + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi fail to get hremote_node\n"); + return 0; + } + + aw = of_n_addr_cells(hremote_node); + sw = of_n_size_cells(hremote_node); + + reg = (unsigned int *)of_get_property(hremote_node, "reg", &len); + if (!reg) { + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi fail to get reg from hremote\n"); + return 0; + } + + reg_end = reg + len / (aw * sw); + + do { + start = of_read_number(reg, aw); + reg += aw; + size = of_read_number(reg, sw); + reg += sw; + } while (reg < reg_end); + + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi ddr start addr is 0x%llx len is %lld\n", + start, size); + + ab->qmi.target_mem[idx].paddr = start; + ab->qmi.target_mem[idx].iaddr = + ioremap(ab->qmi.target_mem[idx].paddr, + ab->qmi.target_mem[i].size); + ab->qmi.target_mem[idx].size = ab->qmi.target_mem[i].size; + host_ddr_sz = ab->qmi.target_mem[i].size; + ab->qmi.target_mem[idx].type = ab->qmi.target_mem[i].type; + idx++; + break; case BDF_MEM_REGION_TYPE: ab->qmi.target_mem[idx].paddr = ab->hw_params.bdf_addr; ab->qmi.target_mem[idx].vaddr = NULL; @@ -1884,10 +1937,16 @@ static int ath11k_qmi_assign_target_mem_chunk(struct ath11k_base *ab) } if (ath11k_cold_boot_cal && ab->hw_params.cold_boot_calib) { - ab->qmi.target_mem[idx].paddr = - ATH11K_QMI_CALDB_ADDRESS; - ab->qmi.target_mem[idx].vaddr = - (void *)ATH11K_QMI_CALDB_ADDRESS; + if (hremote_node) { + ab->qmi.target_mem[idx].paddr = + start + host_ddr_sz; + ab->qmi.target_mem[idx].iaddr = + ioremap(ab->qmi.target_mem[idx].paddr, + ab->qmi.target_mem[i].size); + } else { + ab->qmi.target_mem[idx].paddr = + ATH11K_QMI_CALDB_ADDRESS; + } } else { ab->qmi.target_mem[idx].paddr = 0; ab->qmi.target_mem[idx].vaddr = NULL; diff --git a/drivers/net/wireless/ath/ath11k/qmi.h b/drivers/net/wireless/ath/ath11k/qmi.h index 3bb0f9ef7996..f8d45b7dc821 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.h +++ b/drivers/net/wireless/ath/ath11k/qmi.h @@ -95,6 +95,7 @@ struct target_mem_chunk { u32 type; dma_addr_t paddr; u32 *vaddr; + void __iomem *iaddr; }; struct target_info {