From patchwork Thu Sep 5 16:17:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathieu Poirier X-Patchwork-Id: 11133639 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 30A7314B4 for ; Thu, 5 Sep 2019 16:20:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 86F1A214D9 for ; Thu, 5 Sep 2019 16:20:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="RAocJqNu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731540AbfIEQU0 (ORCPT ); Thu, 5 Sep 2019 12:20:26 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:36495 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733103AbfIEQSD (ORCPT ); Thu, 5 Sep 2019 12:18:03 -0400 Received: by mail-pg1-f194.google.com with SMTP id l21so1688054pgm.3 for ; Thu, 05 Sep 2019 09:18:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=LOcyk2Tlmy2C4zqKtlXcXvj1dEhOW89Bxfs+xhia+Lc=; b=RAocJqNuFAo+8EWLGQowOck0TpzPvE7OJtl5QzpsxoyoNf9Ngy0QrVRD8QbNLan0SK 3atzqgCHL9vl7ujJipFG5mstF8vo8Cqw+J5f1YEz6GGZT2/PAdLdz7nI6i6jXlOhirHF s+zLL4x57Pv/j2bnLfroXzBT8ECnmG7bWvVFun5AEwZ8nHcWWz6+lasnvBgrzIAVU7RZ vO5xw8QOCOUZrUAHJcYqap8Q1iL7RIYViGVCWgaLpc0EWEHznv31BLWRVEeSeirK+C72 4z451i7BQb96tTMghJ2Erm9bY0f74GAzJxLfVWq4p3mQV8fTbc8fi617kBInlSo8dIoz vCvg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=LOcyk2Tlmy2C4zqKtlXcXvj1dEhOW89Bxfs+xhia+Lc=; b=eK+gfU/SaDFRE3+iiYedLwe4/2O9fiPxayhLJs4ID0G2acywaOjKX53TyL+2D/j+Je kOz1zbbY+M+7S+XCGuUIF8KyCVdkA856GMwIZNLq9bloxabjzisd51lqjnujVbU5ujDz K3b1gH8e5NUBLXCrXgTiIgIihkx6OYCVyEv/l3VwE1ETOPWBNNkOKxjDcqWo/PO4nwjI vsvj623sp3V/03hIJVIQpjpeJWfGJknM2n8zHQCbZ+IPBOA8kZnx35hKPE8Cgh/Xu96M L2MqhJuaF01pEd/S4ia0aC/NOXjDLca3hJQNSrMFSvuUy2dO2mGAZlqHUhPwm+crCIUE q4pw== X-Gm-Message-State: APjAAAX/q35lV6q48biMKajrJSj1dpMZYoOO32hX0Tvk0hWcHR2fUkaI 7WANVi04iRwBmX+8pGuLZa6/mg== X-Google-Smtp-Source: APXvYqyMgjxfkjP3YNECcB58WCY+NHLygBK/D+S4VWMd6L7YO3gjUZq9S9Du5KS72s1N8hLa4mIKqA== X-Received: by 2002:a63:db45:: with SMTP id x5mr3885637pgi.293.1567700282371; Thu, 05 Sep 2019 09:18:02 -0700 (PDT) Received: from xps15.cg.shawcable.net (S0106002369de4dac.cg.shawcable.net. [68.147.8.254]) by smtp.gmail.com with ESMTPSA id m129sm6324005pga.39.2019.09.05.09.18.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Sep 2019 09:18:01 -0700 (PDT) From: Mathieu Poirier To: stable@vger.kernel.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-pci@vger.kernel.org, linux-mtd@lists.infradead.org Subject: [BACKPORT 4.14.y 01/18] PCI: designware-ep: Fix find_first_zero_bit() usage Date: Thu, 5 Sep 2019 10:17:42 -0600 Message-Id: <20190905161759.28036-2-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190905161759.28036-1-mathieu.poirier@linaro.org> References: <20190905161759.28036-1-mathieu.poirier@linaro.org> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Niklas Cassel commit ad4a5becc689c3f32bbbc2b37eff89efe19dc2f9 upstream find_first_zero_bit()'s parameter 'size' is defined in bits, not in bytes. find_first_zero_bit() is called with size in bytes rather than bits, which thus defines a too low upper limit, causing dw_pcie_ep_inbound_atu() to assign iatu index #4 to both bar 4 and bar 5, which makes bar 5 overwrite the settings set by bar 4. Since the sizes of the bitmaps are known, dynamically allocate the bitmaps, and use the correct size when calling find_first_zero_bit(). Additionally, make sure that ep->num_ob_windows and ep->num_ib_windows, which are obtained from device tree, are smaller than the maximum number of iATUs (MAX_IATU_IN/MAX_IATU_OUT). Fixes: f8aed6ec624f ("PCI: dwc: designware: Add EP mode support") Signed-off-by: Niklas Cassel Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I Signed-off-by: Mathieu Poirier --- drivers/pci/dwc/pcie-designware-ep.c | 34 +++++++++++++++++++++------- drivers/pci/dwc/pcie-designware.h | 8 +++++-- 2 files changed, 32 insertions(+), 10 deletions(-) diff --git a/drivers/pci/dwc/pcie-designware-ep.c b/drivers/pci/dwc/pcie-designware-ep.c index abcbf0770358..71795db41261 100644 --- a/drivers/pci/dwc/pcie-designware-ep.c +++ b/drivers/pci/dwc/pcie-designware-ep.c @@ -74,8 +74,7 @@ static int dw_pcie_ep_inbound_atu(struct dw_pcie_ep *ep, enum pci_barno bar, u32 free_win; struct dw_pcie *pci = to_dw_pcie_from_ep(ep); - free_win = find_first_zero_bit(&ep->ib_window_map, - sizeof(ep->ib_window_map)); + free_win = find_first_zero_bit(ep->ib_window_map, ep->num_ib_windows); if (free_win >= ep->num_ib_windows) { dev_err(pci->dev, "no free inbound window\n"); return -EINVAL; @@ -89,7 +88,7 @@ static int dw_pcie_ep_inbound_atu(struct dw_pcie_ep *ep, enum pci_barno bar, } ep->bar_to_atu[bar] = free_win; - set_bit(free_win, &ep->ib_window_map); + set_bit(free_win, ep->ib_window_map); return 0; } @@ -100,8 +99,7 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, phys_addr_t phys_addr, u32 free_win; struct dw_pcie *pci = to_dw_pcie_from_ep(ep); - free_win = find_first_zero_bit(&ep->ob_window_map, - sizeof(ep->ob_window_map)); + free_win = find_first_zero_bit(ep->ob_window_map, ep->num_ob_windows); if (free_win >= ep->num_ob_windows) { dev_err(pci->dev, "no free outbound window\n"); return -EINVAL; @@ -110,7 +108,7 @@ static int dw_pcie_ep_outbound_atu(struct dw_pcie_ep *ep, phys_addr_t phys_addr, dw_pcie_prog_outbound_atu(pci, free_win, PCIE_ATU_TYPE_MEM, phys_addr, pci_addr, size); - set_bit(free_win, &ep->ob_window_map); + set_bit(free_win, ep->ob_window_map); ep->outbound_addr[free_win] = phys_addr; return 0; @@ -125,7 +123,7 @@ static void dw_pcie_ep_clear_bar(struct pci_epc *epc, enum pci_barno bar) dw_pcie_ep_reset_bar(pci, bar); dw_pcie_disable_atu(pci, atu_index, DW_PCIE_REGION_INBOUND); - clear_bit(atu_index, &ep->ib_window_map); + clear_bit(atu_index, ep->ib_window_map); } static int dw_pcie_ep_set_bar(struct pci_epc *epc, enum pci_barno bar, @@ -181,7 +179,7 @@ static void dw_pcie_ep_unmap_addr(struct pci_epc *epc, phys_addr_t addr) return; dw_pcie_disable_atu(pci, atu_index, DW_PCIE_REGION_OUTBOUND); - clear_bit(atu_index, &ep->ob_window_map); + clear_bit(atu_index, ep->ob_window_map); } static int dw_pcie_ep_map_addr(struct pci_epc *epc, phys_addr_t addr, @@ -302,12 +300,32 @@ int dw_pcie_ep_init(struct dw_pcie_ep *ep) dev_err(dev, "unable to read *num-ib-windows* property\n"); return ret; } + if (ep->num_ib_windows > MAX_IATU_IN) { + dev_err(dev, "invalid *num-ib-windows*\n"); + return -EINVAL; + } ret = of_property_read_u32(np, "num-ob-windows", &ep->num_ob_windows); if (ret < 0) { dev_err(dev, "unable to read *num-ob-windows* property\n"); return ret; } + if (ep->num_ob_windows > MAX_IATU_OUT) { + dev_err(dev, "invalid *num-ob-windows*\n"); + return -EINVAL; + } + + ep->ib_window_map = devm_kzalloc(dev, sizeof(long) * + BITS_TO_LONGS(ep->num_ib_windows), + GFP_KERNEL); + if (!ep->ib_window_map) + return -ENOMEM; + + ep->ob_window_map = devm_kzalloc(dev, sizeof(long) * + BITS_TO_LONGS(ep->num_ob_windows), + GFP_KERNEL); + if (!ep->ob_window_map) + return -ENOMEM; addr = devm_kzalloc(dev, sizeof(phys_addr_t) * ep->num_ob_windows, GFP_KERNEL); diff --git a/drivers/pci/dwc/pcie-designware.h b/drivers/pci/dwc/pcie-designware.h index 5af29d125c7e..ba9dedc31bfa 100644 --- a/drivers/pci/dwc/pcie-designware.h +++ b/drivers/pci/dwc/pcie-designware.h @@ -114,6 +114,10 @@ #define MAX_MSI_IRQS 32 #define MAX_MSI_CTRLS (MAX_MSI_IRQS / 32) +/* Maximum number of inbound/outbound iATUs */ +#define MAX_IATU_IN 256 +#define MAX_IATU_OUT 256 + struct pcie_port; struct dw_pcie; struct dw_pcie_ep; @@ -193,8 +197,8 @@ struct dw_pcie_ep { size_t page_size; u8 bar_to_atu[6]; phys_addr_t *outbound_addr; - unsigned long ib_window_map; - unsigned long ob_window_map; + unsigned long *ib_window_map; + unsigned long *ob_window_map; u32 num_ib_windows; u32 num_ob_windows; }; From patchwork Thu Sep 5 16:17:43 2019 Content-Type: text/plain; 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[68.147.8.254]) by smtp.gmail.com with ESMTPSA id m129sm6324005pga.39.2019.09.05.09.18.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Sep 2019 09:18:03 -0700 (PDT) From: Mathieu Poirier To: stable@vger.kernel.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-pci@vger.kernel.org, linux-mtd@lists.infradead.org Subject: [BACKPORT 4.14.y 02/18] PCI: dra7xx: Fix legacy INTD IRQ handling Date: Thu, 5 Sep 2019 10:17:43 -0600 Message-Id: <20190905161759.28036-3-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190905161759.28036-1-mathieu.poirier@linaro.org> References: <20190905161759.28036-1-mathieu.poirier@linaro.org> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Vignesh R commit 524d59f6e30aab5b618da55e604c802ccd83e708 upstream Legacy INTD IRQ handling is broken on dra7xx due to fact that driver uses hwirq in range of 1-4 for INTA, INTD whereas IRQ domain is of size 4 which is numbered 0-3. Therefore when INTD IRQ line is used with pci-dra7xx driver following warning is seen: WARNING: CPU: 0 PID: 1 at kernel/irq/irqdomain.c:342 irq_domain_associate+0x12c/0x1c4 error: hwirq 0x4 is too large for dummy Fix this by using pci_irqd_intx_xlate() helper to translate the INTx 1-4 range into the 0-3 as done in other PCIe drivers. Suggested-by: Bjorn Helgaas Reported-by: Chris Welch Signed-off-by: Vignesh R Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I Signed-off-by: Mathieu Poirier --- drivers/pci/dwc/pci-dra7xx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/pci/dwc/pci-dra7xx.c b/drivers/pci/dwc/pci-dra7xx.c index 63052c5e5f82..7f5dfa169d0f 100644 --- a/drivers/pci/dwc/pci-dra7xx.c +++ b/drivers/pci/dwc/pci-dra7xx.c @@ -227,6 +227,7 @@ static int dra7xx_pcie_intx_map(struct irq_domain *domain, unsigned int irq, static const struct irq_domain_ops intx_domain_ops = { .map = dra7xx_pcie_intx_map, + .xlate = pci_irqd_intx_xlate, }; static int dra7xx_pcie_init_irq_domain(struct pcie_port *pp) @@ -270,7 +271,7 @@ static irqreturn_t dra7xx_pcie_msi_irq_handler(int irq, void *arg) case INTC: case INTD: generic_handle_irq(irq_find_mapping(dra7xx->irq_domain, - ffs(reg))); + ffs(reg) - 1)); break; } From patchwork Thu Sep 5 16:17:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathieu Poirier X-Patchwork-Id: 11133625 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9844014B4 for ; Thu, 5 Sep 2019 16:20:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 024C120870 for ; Thu, 5 Sep 2019 16:20:07 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="Kf9BCxH5" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730327AbfIEQUF (ORCPT ); Thu, 5 Sep 2019 12:20:05 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:37707 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387405AbfIEQSF (ORCPT ); Thu, 5 Sep 2019 12:18:05 -0400 Received: by mail-pf1-f196.google.com with SMTP id y9so2078461pfl.4 for ; Thu, 05 Sep 2019 09:18:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=L8hOfhOr51aqScCCWWbh9I9oRm+jyZZGT7N1Ouypdt4=; b=Kf9BCxH5tyFR8Sxb6davF0tw/g0BJcQ2LTgqYDRkCXe99lige8xFTOyajGrEfuPQ/R I0jfW+xyceHiuUmlk5yy9H/wHaQBHzqM6/NCd+6TYi2hTFJcP+V9Qy+4KG7IN1UQJXhm SHxD8duKsNPol28y9SdpztaPVTFslQB1ZJ4shENKHGBsNtllukJz/Fvv4h2tEY0T/gDA A2nAqicaFTIrh+VxqbojFsyy6M/2eC5AmJiZLPVyY+LXna6RGps4ro7SxWrWHOr8M3f3 r5tzdOU8n4cY0b4Asgrm+yIMVuJn8WX1xgQ9ScuHQJtGCR5wLKwPCsSipBa/U9NOB1IX 2SLA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=L8hOfhOr51aqScCCWWbh9I9oRm+jyZZGT7N1Ouypdt4=; b=udWPHZMKnlJj7es8dXYXIEafLiPyn4HPtt/sJBOzMKy6jN9M84mz2ta2OmuNjRGa2U udkWUkMaG9ZJWv/7JyajWhIRAn8GL+ZDaMAmRldK6BouVY0ZDx3fqqD5vsTagUO/W4Yk k1zPc4vgmb2aWCebWgXvLwF3Szk71ajsAUTnM/GuEJYEIdy6qkRVfmnhaZ/ka7BrzQtb N5GzBwrF8Bi1iGnUFdRdl85ZZRnYRjQbzxidDOj0/csvpEq1W+zJhVNWe3WIyulz5qLp C4BOsxAacpJDG1FrP4fgPtYDW7wHzhM8F6bj+tk7nWalz+UAxxGVyOKGXwJRYvdtUkfK TfyA== X-Gm-Message-State: APjAAAWpoFgRKD4BIYoKMaqa4JSINMz71VKj6dDXw4+C6sh2GPEDOamh MaUQPAnPhYuwg083mCFfslqgmzaxPq8= X-Google-Smtp-Source: APXvYqzPIZoynm5wH2XSzFsQu6YuhHmdV6ACJ/jbefAUC4vneQ0qioQJzoA1wj/k15d4/pVhs+puhw== X-Received: by 2002:a63:df06:: with SMTP id u6mr3817337pgg.96.1567700284680; Thu, 05 Sep 2019 09:18:04 -0700 (PDT) Received: from xps15.cg.shawcable.net (S0106002369de4dac.cg.shawcable.net. [68.147.8.254]) by smtp.gmail.com with ESMTPSA id m129sm6324005pga.39.2019.09.05.09.18.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Sep 2019 09:18:04 -0700 (PDT) From: Mathieu Poirier To: stable@vger.kernel.org Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-omap@vger.kernel.org, linux-i2c@vger.kernel.org, linux-pci@vger.kernel.org, linux-mtd@lists.infradead.org Subject: [BACKPORT 4.14.y 03/18] drm/omap: panel-dsi-cm: fix driver Date: Thu, 5 Sep 2019 10:17:44 -0600 Message-Id: <20190905161759.28036-4-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190905161759.28036-1-mathieu.poirier@linaro.org> References: <20190905161759.28036-1-mathieu.poirier@linaro.org> Sender: linux-usb-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Tony Lindgren commit e128310ddd379b0fdd21dc41d176c3b3505a0832 upstream This adds support for get_timings() and check_timings() to get the driver working and properly initializes the timing information from DT. Signed-off-by: Tony Lindgren Signed-off-by: Sebastian Reichel Signed-off-by: Tomi Valkeinen Signed-off-by: Mathieu Poirier --- .../gpu/drm/omapdrm/displays/panel-dsi-cm.c | 56 +++++++++++++++++-- 1 file changed, 51 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c index 92c556ac22c7..905b71719d65 100644 --- a/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c +++ b/drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c @@ -25,6 +25,7 @@ #include #include