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From: Maciej Kwapulinski <maciej.kwapulinski@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Arnd Bergmann <arnd@arndb.de>, Jonathan Corbet <corbet@lwn.net>,
	Derek Kiernan <derek.kiernan@xilinx.com>,
	Dragan Cvetic <dragan.cvetic@xilinx.com>,
	Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	Maciej Kwapulinski <maciej.kwapulinski@linux.intel.com>,
	Tomasz Jankowski <tomasz1.jankowski@intel.com>,
	Savo Novakovic <savox.novakovic@intel.com>,
	Jianxun Zhang <jianxun.zhang@linux.intel.com>
Subject: [PATCH v2 03/13] intel_gna: read hardware info in the driver
Date: Wed, 24 Mar 2021 19:36:00 +0100	[thread overview]
Message-ID: <20210324183610.4574-4-maciej.kwapulinski@linux.intel.com> (raw)
In-Reply-To: <20210324183610.4574-1-maciej.kwapulinski@linux.intel.com>

From: Tomasz Jankowski <tomasz1.jankowski@intel.com>

Get the hardware information from register MMIO_IBUFFS

Signed-off-by: Tomasz Jankowski <tomasz1.jankowski@intel.com>
Tested-by: Savo Novakovic <savox.novakovic@intel.com>
Co-developed-by: Jianxun Zhang <jianxun.zhang@linux.intel.com>
Signed-off-by: Jianxun Zhang <jianxun.zhang@linux.intel.com>
Co-developed-by: Maciej Kwapulinski <maciej.kwapulinski@linux.intel.com>
Signed-off-by: Maciej Kwapulinski <maciej.kwapulinski@linux.intel.com>
---
 drivers/misc/intel/gna/gna_device.c | 5 +++++
 drivers/misc/intel/gna/gna_device.h | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/drivers/misc/intel/gna/gna_device.c b/drivers/misc/intel/gna/gna_device.c
index 431113297879..6bac481b2247 100644
--- a/drivers/misc/intel/gna/gna_device.c
+++ b/drivers/misc/intel/gna/gna_device.c
@@ -12,12 +12,17 @@
 static void gna_dev_init(struct gna_private *gna_priv, struct pci_dev *pcidev,
 			const struct pci_device_id *pci_id)
 {
+	u32 bld_reg;
+
 	pci_set_drvdata(pcidev, gna_priv);
 
 	gna_priv->parent = &pcidev->dev;
 	gna_priv->pdev = pcidev;
 	gna_priv->info = *(struct gna_drv_info *)pci_id->driver_data;
 	gna_priv->drv_priv = &gna_drv_priv;
+
+	bld_reg = gna_reg_read(gna_priv->bar0_base, GNA_MMIO_IBUFFS);
+	gna_priv->hw_info.in_buf_s = bld_reg & GENMASK(7, 0);
 }
 
 int gna_probe(struct pci_dev *pcidev, const struct pci_device_id *pci_id)
diff --git a/drivers/misc/intel/gna/gna_device.h b/drivers/misc/intel/gna/gna_device.h
index 39dc03d53feb..7704eeda90f6 100644
--- a/drivers/misc/intel/gna/gna_device.h
+++ b/drivers/misc/intel/gna/gna_device.h
@@ -23,6 +23,10 @@ struct gna_drv_info {
 	struct gna_desc_info desc_info;
 };
 
+struct gna_hw_info {
+	u8 in_buf_s;
+};
+
 struct gna_private {
 	struct gna_driver_private *drv_priv;
 
@@ -33,6 +37,7 @@ struct gna_private {
 	/* device related resources */
 	void __iomem *bar0_base;
 	struct gna_drv_info info;
+	struct gna_hw_info hw_info;
 };
 
 int gna_probe(struct pci_dev *dev, const struct pci_device_id *id);
-- 
2.28.0


  parent reply	other threads:[~2021-03-24 18:39 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-24 18:35 [PATCH v2 00/13] Driver of Intel(R) Gaussian & Neural Accelerator Maciej Kwapulinski
2021-03-24 18:35 ` [PATCH v2 01/13] intel_gna: add driver module Maciej Kwapulinski
2021-03-24 19:30   ` Andy Shevchenko
2021-04-07 17:22     ` Maciej Kwapulinski
2021-05-13 11:30     ` Maciej Kwapulinski
2021-03-24 18:35 ` [PATCH v2 02/13] intel_gna: add component of hardware operation Maciej Kwapulinski
2021-03-24 19:39   ` Andy Shevchenko
2021-04-06 14:58     ` Maciej Kwapulinski
2021-03-24 18:36 ` Maciej Kwapulinski [this message]
2021-03-24 18:36 ` [PATCH v2 04/13] intel_gna: add memory handling Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 05/13] intel_gna: initialize mmu Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 06/13] intel_gna: add hardware ids Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 07/13] intel_gna: add request component Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 08/13] intel_gna: implement scoring Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 09/13] intel_gna: add a work queue to process scoring requests Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 10/13] intel_gna: add interrupt handler Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 11/13] intel_gna: add ioctl handler Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 12/13] intel_gna: add a 'misc' device Maciej Kwapulinski
2021-03-24 18:36 ` [PATCH v2 13/13] intel_gna: add file operations to " Maciej Kwapulinski
2021-03-24 19:14 ` [PATCH v2 00/13] Driver of Intel(R) Gaussian & Neural Accelerator Andy Shevchenko
2021-03-26 10:45 ` Linus Walleij

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