From patchwork Sun Nov 21 14:22:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anilkumar Kolli X-Patchwork-Id: 12630867 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6928FC433F5 for ; Sun, 21 Nov 2021 14:22:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238244AbhKUOZU (ORCPT ); Sun, 21 Nov 2021 09:25:20 -0500 Received: from m43-7.mailgun.net ([69.72.43.7]:40883 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236478AbhKUOZT (ORCPT ); Sun, 21 Nov 2021 09:25:19 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1637504534; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=Koiy3fcon7p4PWOBWCzwXEv49LwowcWR0Zk8VivWxF4=; b=P15+lpI7SmV3Ih4SXbFy0JyPvqddgOr0QE50QEeRfhGrYhtTEibjCSDwbdMB9QRhYhxHLDCK s3AUOwPTpgk/EYCFK/jB4V30t2QuQsttH4GA0waDaKo/0sZDeAh6N2PgqKF2Wiaa7SyqdJjX mNqVS/qvcwdF1mvLKIhZ4DZNiXQ= X-Mailgun-Sending-Ip: 69.72.43.7 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-n04.prod.us-west-2.postgun.com with SMTP id 619a56161487d2e40560fe40 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Sun, 21 Nov 2021 14:22:14 GMT Sender: akolli=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 48333C43616; Sun, 21 Nov 2021 14:22:14 +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 DC925C43617; Sun, 21 Nov 2021 14:22:11 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 smtp.codeaurora.org DC925C43617 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 v4 2/2] ath11k: Use reserved host DDR addresses from DT for PCI devices Date: Sun, 21 Nov 2021 19:52:01 +0530 Message-Id: <1637504521-30997-2-git-send-email-akolli@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1637504521-30997-1-git-send-email-akolli@codeaurora.org> References: <1637504521-30997-1-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 from DT entries. If DT entry is available, PCI device will 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 --- V4: - Update code review comments to handle return (Kalle) V3: - remove type cast and use of_property_read_u32_array() (Kalle) V2: - Use of_ API to read from dt node (Rob) drivers/net/wireless/ath/ath11k/core.h | 1 + drivers/net/wireless/ath/ath11k/mhi.c | 34 ++++++++++++++- drivers/net/wireless/ath/ath11k/pci.c | 11 ++++- drivers/net/wireless/ath/ath11k/qmi.c | 77 +++++++++++++++++++++++++++++----- drivers/net/wireless/ath/ath11k/qmi.h | 1 + 5 files changed, 111 insertions(+), 13 deletions(-) diff --git a/drivers/net/wireless/ath/ath11k/core.h b/drivers/net/wireless/ath/ath11k/core.h index 2f1e10b7cc17..8492ca7efb92 100644 --- a/drivers/net/wireless/ath/ath11k/core.h +++ b/drivers/net/wireless/ath/ath11k/core.h @@ -194,6 +194,7 @@ enum ath11k_dev_flags { ATH11K_FLAG_REGISTERED, ATH11K_FLAG_QMI_FAIL, ATH11K_FLAG_HTC_SUSPEND_COMPLETE, + ATH11K_FLAG_FIXED_MEM_RGN, }; enum ath11k_monitor_flags { diff --git a/drivers/net/wireless/ath/ath11k/mhi.c b/drivers/net/wireless/ath/ath11k/mhi.c index 26c7ae242db6..16d0934b1836 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" @@ -311,6 +312,28 @@ static void ath11k_mhi_op_write_reg(struct mhi_controller *mhi_cntrl, writel(val, addr); } +static int ath11k_mhi_read_addr_from_dt(struct mhi_controller *mhi_ctrl) +{ + struct device_node *np; + dma_addr_t start; + u32 reg[4]; + int ret; + + np = of_find_node_by_type(NULL, "memory"); + if (!np) + return -ENOENT; + + ret = of_property_read_u32_array(np, "reg", reg, 4); + if (ret) + return ret; + + start = reg[0] + reg[1]; + mhi_ctrl->iova_start = start + 0x1000000; + mhi_ctrl->iova_stop = start + reg[2] + reg[3]; + + return 0; +} + int ath11k_mhi_register(struct ath11k_pci *ab_pci) { struct ath11k_base *ab = ab_pci->ab; @@ -339,8 +362,15 @@ int ath11k_mhi_register(struct ath11k_pci *ab_pci) return ret; } - mhi_ctrl->iova_start = 0; - mhi_ctrl->iova_stop = 0xffffffff; + if ((test_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags))) { + ret = ath11k_mhi_read_addr_from_dt(mhi_ctrl); + if (ret < 0) + return ret; + } else { + mhi_ctrl->iova_start = 0; + mhi_ctrl->iova_stop = 0xFFFFFFFF; + } + 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..e12d9753f113 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 +1246,14 @@ 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. + */ + ret = of_property_read_u32(ab->dev->of_node, "memory-region", &addr); + if (!ret) + set_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags); + 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..2dc6368d6577 100644 --- a/drivers/net/wireless/ath/ath11k/qmi.c +++ b/drivers/net/wireless/ath/ath11k/qmi.c @@ -1749,7 +1749,9 @@ static int ath11k_qmi_respond_fw_mem_request(struct ath11k_base *ab) * failure to FW and FW will then request mulitple blocks of small * chunk size memory. */ - if (!ab->bus_params.fixed_mem_region && ab->qmi.target_mem_delayed) { + if (!(ab->bus_params.fixed_mem_region || + test_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags)) && + ab->qmi.target_mem_delayed) { delayed = true; ath11k_dbg(ab, ATH11K_DBG_QMI, "qmi delays mem_request %d\n", ab->qmi.mem_seg_count); @@ -1815,10 +1817,12 @@ 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 || + test_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags)) && + ab->qmi.target_mem[i].iaddr) + iounmap(ab->qmi.target_mem[i].iaddr); + if (!ab->qmi.target_mem[i].vaddr) continue; @@ -1866,10 +1870,56 @@ 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; + dma_addr_t start; + u32 reg[4], size, host_ddr_sz; + int i, idx, ret; for (i = 0, idx = 0; i < ab->qmi.mem_seg_count; i++) { switch (ab->qmi.target_mem[i].type) { + case HOST_DDR_REGION_TYPE: + ret = of_property_read_u32(dev->of_node, "memory-region", + &hremote_phandle); + if (ret) { + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi fail to get hremote phandle\n"); + return ret; + } + + 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 ret; + } + + ret = of_property_read_u32_array(hremote_node, "reg", reg, 4); + if (ret) { + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi fail to get reg from hremote\n"); + return ret; + } + + start = reg[0] + reg[1]; + size = reg[2] + reg[3]; + + if (size < ab->qmi.target_mem[i].size) { + ath11k_dbg(ab, ATH11K_DBG_QMI, + "qmi fail to assign memory of sz %u\n", size); + return -EINVAL; + } + + 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 +1934,16 @@ 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; @@ -2614,7 +2670,8 @@ static void ath11k_qmi_msg_mem_request_cb(struct qmi_handle *qmi_hdl, msg->mem_seg[i].type, msg->mem_seg[i].size); } - if (ab->bus_params.fixed_mem_region) { + if (ab->bus_params.fixed_mem_region || + test_bit(ATH11K_FLAG_FIXED_MEM_RGN, &ab->dev_flags)) { ret = ath11k_qmi_assign_target_mem_chunk(ab); if (ret) { ath11k_warn(ab, "failed to assign qmi target memory: %d\n", 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 {