From: Wang Hongcheng <annie.wang@amd.com> To: Vinod Koul <vinod.koul@intel.com>, Mika Westerberg <mika.westerberg@linux.intel.com>, Joerg Roedel <joro@8bytes.org>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, dmaengine@vger.kernel.org, iommu@lists.linux-foundation.org, Borislav Petkov <bp@alien8.de>, Huang Rui <ray.huang@amd.com>, Wan Zongshun <vincent.wan@amd.com>, Ken Xue <ken.xue@amd.com>, Tony Li <tony.li@amd.com>, Wang Hongcheng <annie.wang@amd.com> Subject: [PATCH 3/9] ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config Date: Fri, 4 Dec 2015 11:24:20 +0800 [thread overview] Message-ID: <1449199466-6081-4-git-send-email-annie.wang@amd.com> (raw) In-Reply-To: <1449199466-6081-1-git-send-email-annie.wang@amd.com> AMD pl330 is a UART DMA device, it shares one ACPI item with UART. So a platform device and an acpi device will be created according to AMD0020 ACPI dev. And its mem base address must have an offset. As a result, MULTI_ATTACHED_QUIRK and MULTI_ATTACHED_QUIRK are used. Signed-off-by: Wang Hongcheng <annie.wang@amd.com> --- drivers/acpi/acpi_amba.c | 31 +++++++++++++++++++++++---- drivers/acpi/acpi_apd.c | 56 +++++++++++++++++++++++++++++++++++++----------- include/linux/acpi.h | 13 +++++++++-- 3 files changed, 81 insertions(+), 19 deletions(-) diff --git a/drivers/acpi/acpi_amba.c b/drivers/acpi/acpi_amba.c index 4f0366a..8a5269c 100644 --- a/drivers/acpi/acpi_amba.c +++ b/drivers/acpi/acpi_amba.c @@ -31,6 +31,8 @@ ACPI_MODULE_NAME("amba"); * @periphid: AMBA device periphid. * @fixed_rate: Clock frequency. * @pdata: Platform data specific to the device. + * @quirk: Specific device config, including device multiattach. + * and mem base offset. * * Check if the given @adev can be represented as an AMBA device and, if * that's the case, create and register an AMBA device, populate its @@ -42,7 +44,8 @@ ACPI_MODULE_NAME("amba"); struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int periphid, unsigned long fixed_rate, - void *pdata) + void *pdata, + struct acpi_amba_quirk *quirk) { struct amba_device *amba_dev = NULL; struct device *parent; @@ -54,12 +57,14 @@ struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int i; unsigned int irq[AMBA_NR_IRQS]; struct clk *clk = ERR_PTR(-ENODEV); + char amba_devname[100]; /* * If the ACPI node already has a physical device attached, - * skip it. + * skip it. Except some special devices such as AMD0020 which + * needs attach physical devices two times. */ - if (adev->physical_node_count) + if (adev->physical_node_count && !(quirk->quirk & MULTI_ATTACHED_QUIRK)) return NULL; INIT_LIST_HEAD(&resource_list); @@ -85,7 +90,24 @@ struct amba_device *acpi_create_amba_device(struct acpi_device *adev, memcpy(resource, rentry->res, sizeof(struct resource)); } - amba_dev = amba_device_alloc(dev_name(&adev->dev), + /* + * The memory address of AMD pl330 has an offset of ACPI + * mem resource. + */ + if (quirk->quirk & BASE_OFFSET_QUIRK) + resource->start += quirk->base_offset; + + /* + * If the ACPI device already has a node attached. It must be + * renamed. + */ + if (quirk->quirk & MULTI_ATTACHED_QUIRK) + sprintf(amba_devname, "%s%s", dev_name(&adev->dev), "DMA"); + else + memcpy(amba_devname, dev_name(&adev->dev), + strlen(dev_name(&adev->dev))); + + amba_dev = amba_device_alloc(amba_devname, resource->start, resource_size(resource)); @@ -136,6 +158,7 @@ struct amba_device *acpi_create_amba_device(struct acpi_device *adev, if (ret) goto amba_register_err; + amba_dev->dev.init_name = NULL; ret = amba_device_add(amba_dev, resource); if (ret) goto amba_register_err; diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index a450e7a..eb3316a 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -3,7 +3,8 @@ * * Copyright (c) 2014,2015 AMD Corporation. * Authors: Ken Xue <Ken.Xue@amd.com> - * Wu, Jeff <Jeff.Wu@amd.com> + * Jeff Wu <15618388108@163.com> + * Wang Hongcheng <Annie.Wang@amd.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -17,6 +18,10 @@ #include <linux/acpi.h> #include <linux/err.h> #include <linux/pm.h> +#include <linux/amba/bus.h> +#include <linux/kernel.h> +#include <linux/sizes.h> +#include <linux/interrupt.h> #include "internal.h" @@ -31,14 +36,15 @@ struct apd_private_data; #define ACPI_APD_PM BIT(1) /** - * struct apd_device_desc - a descriptor for apd device - * @flags: device flags like %ACPI_APD_SYSFS, %ACPI_APD_PM + * struct apd_device_desc - a descriptor for apd device. + * @flags: device flags like %ACPI_APD_SYSFS, %ACPI_APD_PM; * @fixed_clk_rate: fixed rate input clock source for acpi device; - * 0 means no fixed rate input clock source - * @setup: a hook routine to set device resource during create platform device + *0 means no fixed rate input clock source; + * @clk_con_id: name of input clock source; + * @setup: a hook routine to set device resource during create platform device. * - * Device description defined as acpi_device_id.driver_data - */ + * Device description defined as acpi_device_id.driver_data. +*/ struct apd_device_desc { unsigned int flags; unsigned int fixed_clk_rate; @@ -71,6 +77,15 @@ static int acpi_apd_setup(struct apd_private_data *pdata) return 0; } +static void setup_quirks(struct platform_device *pdev, + struct acpi_amba_quirk *quirk) +{ + if (!strncmp(pdev->name, "AMD0020", 7)) { + quirk->quirk |= MULTI_ATTACHED_QUIRK | BASE_OFFSET_QUIRK; + quirk->base_offset = SZ_4K; + } +} + static struct apd_device_desc cz_i2c_desc = { .setup = acpi_apd_setup, .fixed_clk_rate = 133000000, @@ -88,15 +103,17 @@ static struct apd_device_desc cz_uart_desc = { #endif /* CONFIG_X86_AMD_PLATFORM_DEVICE */ /** -* Create platform device during acpi scan attach handle. -* Return value > 0 on success of creating device. -*/ + * Create platform device during acpi scan attach handle. + * Return value > 0 on success of creating device. + */ static int acpi_apd_create_device(struct acpi_device *adev, - const struct acpi_device_id *id) + const struct acpi_device_id *id) { const struct apd_device_desc *dev_desc = (void *)id->driver_data; struct apd_private_data *pdata; struct platform_device *pdev; + struct amba_device *amba_dev; + struct acpi_amba_quirk amba_quirks; int ret; if (!dev_desc) { @@ -118,9 +135,22 @@ static int acpi_apd_create_device(struct acpi_device *adev, } adev->driver_data = pdata; + pdev = acpi_create_platform_device(adev); - if (!IS_ERR_OR_NULL(pdev)) - return 1; + if (IS_ERR_OR_NULL(pdev)) + goto err_out; + + if (!strncmp(pdev->name, "AMD0020", 7)) { + memset(&amba_quirks, 0, sizeof(amba_quirks)); + setup_quirks(pdev, &amba_quirks); + + amba_dev = acpi_create_amba_device(pdata->adev, 0x00041330, + 48000000, + NULL, + &amba_quirks); + if (IS_ERR_OR_NULL(amba_dev)) + goto err_out; + } ret = PTR_ERR(pdev); adev->driver_data = NULL; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 04827d8..50961a5 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -468,19 +468,28 @@ void acpi_walk_dep_device_list(acpi_handle handle); struct platform_device *acpi_create_platform_device(struct acpi_device *); +struct acpi_amba_quirk { + u32 quirk; +#define MULTI_ATTACHED_QUIRK BIT(0) +#define BASE_OFFSET_QUIRK BIT(1) + u32 base_offset; +}; + #ifdef CONFIG_ARM_AMBA struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int periphid, unsigned long fixed_rate, - void *pdata); + void *pdata, + struct acpi_amba_quirk *quirk); #else /* !CONFIG_ARM_AMBA */ static inline struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int periphid, unsigned long fixed_rate, - void *pdata) + void *pdata, + struct acpi_amba_quirk *quirk) { return NULL; } -- 1.9.1
WARNING: multiple messages have this Message-ID (diff)
From: Wang Hongcheng <annie.wang@amd.com> To: Vinod Koul <vinod.koul@intel.com>, Mika Westerberg <mika.westerberg@linux.intel.com>, Joerg Roedel <joro@8bytes.org>, "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: <linux-acpi@vger.kernel.org>, <linux-kernel@vger.kernel.org>, <linux-serial@vger.kernel.org>, <dmaengine@vger.kernel.org>, <iommu@lists.linux-foundation.org>, Borislav Petkov <bp@alien8.de>, Huang Rui <ray.huang@amd.com>, Wan Zongshun <vincent.wan@amd.com>, Ken Xue <ken.xue@amd.com>, Tony Li <tony.li@amd.com>, Wang Hongcheng <annie.wang@amd.com> Subject: [PATCH 3/9] ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config Date: Fri, 4 Dec 2015 11:24:20 +0800 [thread overview] Message-ID: <1449199466-6081-4-git-send-email-annie.wang@amd.com> (raw) In-Reply-To: <1449199466-6081-1-git-send-email-annie.wang@amd.com> AMD pl330 is a UART DMA device, it shares one ACPI item with UART. So a platform device and an acpi device will be created according to AMD0020 ACPI dev. And its mem base address must have an offset. As a result, MULTI_ATTACHED_QUIRK and MULTI_ATTACHED_QUIRK are used. Signed-off-by: Wang Hongcheng <annie.wang@amd.com> --- drivers/acpi/acpi_amba.c | 31 +++++++++++++++++++++++---- drivers/acpi/acpi_apd.c | 56 +++++++++++++++++++++++++++++++++++++----------- include/linux/acpi.h | 13 +++++++++-- 3 files changed, 81 insertions(+), 19 deletions(-) diff --git a/drivers/acpi/acpi_amba.c b/drivers/acpi/acpi_amba.c index 4f0366a..8a5269c 100644 --- a/drivers/acpi/acpi_amba.c +++ b/drivers/acpi/acpi_amba.c @@ -31,6 +31,8 @@ ACPI_MODULE_NAME("amba"); * @periphid: AMBA device periphid. * @fixed_rate: Clock frequency. * @pdata: Platform data specific to the device. + * @quirk: Specific device config, including device multiattach. + * and mem base offset. * * Check if the given @adev can be represented as an AMBA device and, if * that's the case, create and register an AMBA device, populate its @@ -42,7 +44,8 @@ ACPI_MODULE_NAME("amba"); struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int periphid, unsigned long fixed_rate, - void *pdata) + void *pdata, + struct acpi_amba_quirk *quirk) { struct amba_device *amba_dev = NULL; struct device *parent; @@ -54,12 +57,14 @@ struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int i; unsigned int irq[AMBA_NR_IRQS]; struct clk *clk = ERR_PTR(-ENODEV); + char amba_devname[100]; /* * If the ACPI node already has a physical device attached, - * skip it. + * skip it. Except some special devices such as AMD0020 which + * needs attach physical devices two times. */ - if (adev->physical_node_count) + if (adev->physical_node_count && !(quirk->quirk & MULTI_ATTACHED_QUIRK)) return NULL; INIT_LIST_HEAD(&resource_list); @@ -85,7 +90,24 @@ struct amba_device *acpi_create_amba_device(struct acpi_device *adev, memcpy(resource, rentry->res, sizeof(struct resource)); } - amba_dev = amba_device_alloc(dev_name(&adev->dev), + /* + * The memory address of AMD pl330 has an offset of ACPI + * mem resource. + */ + if (quirk->quirk & BASE_OFFSET_QUIRK) + resource->start += quirk->base_offset; + + /* + * If the ACPI device already has a node attached. It must be + * renamed. + */ + if (quirk->quirk & MULTI_ATTACHED_QUIRK) + sprintf(amba_devname, "%s%s", dev_name(&adev->dev), "DMA"); + else + memcpy(amba_devname, dev_name(&adev->dev), + strlen(dev_name(&adev->dev))); + + amba_dev = amba_device_alloc(amba_devname, resource->start, resource_size(resource)); @@ -136,6 +158,7 @@ struct amba_device *acpi_create_amba_device(struct acpi_device *adev, if (ret) goto amba_register_err; + amba_dev->dev.init_name = NULL; ret = amba_device_add(amba_dev, resource); if (ret) goto amba_register_err; diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index a450e7a..eb3316a 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -3,7 +3,8 @@ * * Copyright (c) 2014,2015 AMD Corporation. * Authors: Ken Xue <Ken.Xue@amd.com> - * Wu, Jeff <Jeff.Wu@amd.com> + * Jeff Wu <15618388108@163.com> + * Wang Hongcheng <Annie.Wang@amd.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -17,6 +18,10 @@ #include <linux/acpi.h> #include <linux/err.h> #include <linux/pm.h> +#include <linux/amba/bus.h> +#include <linux/kernel.h> +#include <linux/sizes.h> +#include <linux/interrupt.h> #include "internal.h" @@ -31,14 +36,15 @@ struct apd_private_data; #define ACPI_APD_PM BIT(1) /** - * struct apd_device_desc - a descriptor for apd device - * @flags: device flags like %ACPI_APD_SYSFS, %ACPI_APD_PM + * struct apd_device_desc - a descriptor for apd device. + * @flags: device flags like %ACPI_APD_SYSFS, %ACPI_APD_PM; * @fixed_clk_rate: fixed rate input clock source for acpi device; - * 0 means no fixed rate input clock source - * @setup: a hook routine to set device resource during create platform device + *0 means no fixed rate input clock source; + * @clk_con_id: name of input clock source; + * @setup: a hook routine to set device resource during create platform device. * - * Device description defined as acpi_device_id.driver_data - */ + * Device description defined as acpi_device_id.driver_data. +*/ struct apd_device_desc { unsigned int flags; unsigned int fixed_clk_rate; @@ -71,6 +77,15 @@ static int acpi_apd_setup(struct apd_private_data *pdata) return 0; } +static void setup_quirks(struct platform_device *pdev, + struct acpi_amba_quirk *quirk) +{ + if (!strncmp(pdev->name, "AMD0020", 7)) { + quirk->quirk |= MULTI_ATTACHED_QUIRK | BASE_OFFSET_QUIRK; + quirk->base_offset = SZ_4K; + } +} + static struct apd_device_desc cz_i2c_desc = { .setup = acpi_apd_setup, .fixed_clk_rate = 133000000, @@ -88,15 +103,17 @@ static struct apd_device_desc cz_uart_desc = { #endif /* CONFIG_X86_AMD_PLATFORM_DEVICE */ /** -* Create platform device during acpi scan attach handle. -* Return value > 0 on success of creating device. -*/ + * Create platform device during acpi scan attach handle. + * Return value > 0 on success of creating device. + */ static int acpi_apd_create_device(struct acpi_device *adev, - const struct acpi_device_id *id) + const struct acpi_device_id *id) { const struct apd_device_desc *dev_desc = (void *)id->driver_data; struct apd_private_data *pdata; struct platform_device *pdev; + struct amba_device *amba_dev; + struct acpi_amba_quirk amba_quirks; int ret; if (!dev_desc) { @@ -118,9 +135,22 @@ static int acpi_apd_create_device(struct acpi_device *adev, } adev->driver_data = pdata; + pdev = acpi_create_platform_device(adev); - if (!IS_ERR_OR_NULL(pdev)) - return 1; + if (IS_ERR_OR_NULL(pdev)) + goto err_out; + + if (!strncmp(pdev->name, "AMD0020", 7)) { + memset(&amba_quirks, 0, sizeof(amba_quirks)); + setup_quirks(pdev, &amba_quirks); + + amba_dev = acpi_create_amba_device(pdata->adev, 0x00041330, + 48000000, + NULL, + &amba_quirks); + if (IS_ERR_OR_NULL(amba_dev)) + goto err_out; + } ret = PTR_ERR(pdev); adev->driver_data = NULL; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 04827d8..50961a5 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -468,19 +468,28 @@ void acpi_walk_dep_device_list(acpi_handle handle); struct platform_device *acpi_create_platform_device(struct acpi_device *); +struct acpi_amba_quirk { + u32 quirk; +#define MULTI_ATTACHED_QUIRK BIT(0) +#define BASE_OFFSET_QUIRK BIT(1) + u32 base_offset; +}; + #ifdef CONFIG_ARM_AMBA struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int periphid, unsigned long fixed_rate, - void *pdata); + void *pdata, + struct acpi_amba_quirk *quirk); #else /* !CONFIG_ARM_AMBA */ static inline struct amba_device *acpi_create_amba_device(struct acpi_device *adev, unsigned int periphid, unsigned long fixed_rate, - void *pdata) + void *pdata, + struct acpi_amba_quirk *quirk) { return NULL; } -- 1.9.1
next prev parent reply other threads:[~2015-12-04 3:24 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-12-04 3:24 [PATCH 0/9] 8250: AMD Carrizo UART PL300 DMA enablement Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng 2015-12-04 3:24 ` [PATCH 1/9] ACPI: Add support for AMBA bus type Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng 2015-12-04 8:50 ` Mika Westerberg 2015-12-04 9:17 ` Huang Rui 2015-12-04 9:17 ` Huang Rui 2015-12-04 9:42 ` Hanjun Guo 2015-12-04 9:42 ` Hanjun Guo 2015-12-04 9:59 ` G Gregory 2015-12-04 10:20 ` Huang Rui 2015-12-04 10:20 ` Huang Rui 2015-12-04 10:23 ` G Gregory 2015-12-04 3:24 ` [PATCH 2/9] 8250/Kconfig: add config option CONFIG_SERIAL_8250_AMD Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng 2015-12-04 11:11 ` Borislav Petkov 2015-12-04 3:24 ` Wang Hongcheng [this message] 2015-12-04 3:24 ` [PATCH 3/9] ACPI: add struct acpi_amba_quirk for AMD pl330 specific device config Wang Hongcheng [not found] ` <1449199466-6081-4-git-send-email-annie.wang-5C7GfCeVMHo@public.gmane.org> 2015-12-04 12:56 ` kbuild test robot 2015-12-04 12:56 ` kbuild test robot 2015-12-04 13:16 ` Graeme Gregory 2015-12-11 6:57 ` Wang, Annie [not found] ` <BLUPR12MB04339648B98F07977B6FA61F81EA0-7LeqcoF/hwrdEWIfrEWxYwdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org> 2015-12-11 9:31 ` Vinod Koul 2015-12-11 9:31 ` Vinod Koul 2015-12-04 3:24 ` [PATCH 4/9] dmaengine: pl330: add new items for pl330 private data Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng 2015-12-10 4:09 ` Vinod Koul 2015-12-10 6:38 ` Wang, Annie [not found] ` <BLUPR12MB0433B81BB0AEB2D84505B55881E90-7LeqcoF/hwrdEWIfrEWxYwdYzm3356FpvxpqHgZTriW3zl9H0oFU5g@public.gmane.org> 2015-12-11 9:29 ` Vinod Koul 2015-12-11 9:29 ` Vinod Koul 2015-12-11 13:56 ` Andy Shevchenko 2015-12-04 3:24 ` [PATCH 5/9] dmaengine: pl330: provide ACPI dmaengine interface Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng [not found] ` <1449199466-6081-6-git-send-email-annie.wang-5C7GfCeVMHo@public.gmane.org> 2015-12-13 2:21 ` Andy Shevchenko 2015-12-13 2:21 ` Andy Shevchenko 2015-12-04 3:24 ` [PATCH 6/9] dmaengine:pl330: set segment_boundary_mask = 0cffffffff Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng 2015-12-04 14:59 ` Robin Murphy 2015-12-04 3:24 ` [PATCH 7/9] Serial:8250: New Port Type PORT_AMD_8250 Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng [not found] ` <1449199466-6081-8-git-send-email-annie.wang-5C7GfCeVMHo@public.gmane.org> 2015-12-13 2:30 ` Andy Shevchenko 2015-12-13 2:30 ` Andy Shevchenko 2015-12-04 3:24 ` [PATCH 8/9] Documentation: Add ivrs_acpihid kernel parameter description Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng [not found] ` <1449199466-6081-9-git-send-email-annie.wang-5C7GfCeVMHo@public.gmane.org> 2015-12-04 12:21 ` Borislav Petkov 2015-12-04 12:21 ` Borislav Petkov 2015-12-04 13:19 ` Wan, Vincent 2015-12-04 13:19 ` Wan, Vincent 2015-12-04 14:38 ` Borislav Petkov 2015-12-04 3:24 ` [PATCH 9/9] iommu/amd: Add ACPI HID named devices IOMMU driver support Wang Hongcheng 2015-12-04 3:24 ` Wang Hongcheng 2015-12-13 2:32 ` [PATCH 0/9] 8250: AMD Carrizo UART PL300 DMA enablement Andy Shevchenko
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