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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>
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>
Subject: [PATCH v1 05/12] gna: initialize mmu
Date: Tue, 16 Feb 2021 17:05:18 +0100	[thread overview]
Message-ID: <20210216160525.5028-6-maciej.kwapulinski@linux.intel.com> (raw)
In-Reply-To: <20210216160525.5028-1-maciej.kwapulinski@linux.intel.com>

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

Setup mmu in the driver with a new memory component.

Signed-off-by: Tomasz Jankowski <tomasz1.jankowski@intel.com>
Tested-by: Savo Novakovic <savox.novakovic@intel.com>
Signed-off-by: Maciej Kwapulinski <maciej.kwapulinski@linux.intel.com>
---
 drivers/misc/gna/gna_device.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/misc/gna/gna_device.c b/drivers/misc/gna/gna_device.c
index f962c7e1e5e9..d6a6d3cab570 100644
--- a/drivers/misc/gna/gna_device.c
+++ b/drivers/misc/gna/gna_device.c
@@ -23,6 +23,16 @@ static int gna_dev_init(struct gna_private *gna_priv, struct pci_dev *pcidev,
 	bld_reg = gna_reg_read(gna_priv->bar0.mem_addr, GNA_MMIO_IBUFFS);
 	gna_priv->hw_info.in_buf_s = bld_reg & GENMASK(7, 0);
 
+	if (gna_mmu_alloc(gna_priv)) {
+		dev_err(&gna_priv->dev, "gna mmu allocation failed\n");
+		return -EFAULT;
+	}
+	dev_dbg(&pcidev->dev, "maximum memory size %llu num pd %d\n",
+		gna_priv->info.max_hw_mem, gna_priv->info.num_pagetables);
+	dev_dbg(&pcidev->dev, "desc rsvd size %d mmu vamax size %d\n",
+		gna_priv->info.desc_info.rsvd_size,
+		gna_priv->info.desc_info.mmu_info.vamax_size);
+
 	mutex_init(&gna_priv->mmu_lock);
 
 	idr_init(&gna_priv->memory_idr);
@@ -35,6 +45,7 @@ static int gna_dev_init(struct gna_private *gna_priv, struct pci_dev *pcidev,
 static void gna_dev_deinit(struct gna_private *gna_priv)
 {
 	idr_destroy(&gna_priv->memory_idr);
+	gna_mmu_free(gna_priv);
 	pci_set_drvdata(gna_priv->pdev, NULL);
 }
 
-- 
2.28.0


  parent reply	other threads:[~2021-02-16 16:12 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-16 16:05 [PATCH v1 00/12] Driver of Intel(R) Gaussian & Neural Accelerator Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 01/12] gna: add driver module Maciej Kwapulinski
2021-02-16 16:54   ` Andy Shevchenko
2021-02-16 17:37     ` Jianxun Zhang
2021-02-19 13:21     ` Maciej Kwapulinski
2021-02-19 14:36       ` Andy Shevchenko
2021-02-26 18:29     ` Maciej Kwapulinski
2021-02-26 21:22       ` Jianxun Zhang
2021-02-27  6:33       ` Greg Kroah-Hartman
2021-03-01 10:18     ` Maciej Kwapulinski
2021-03-01 10:22       ` Greg Kroah-Hartman
2021-03-01 10:36         ` Maciej Kwapulinski
2021-03-01 10:39           ` Maciej Kwapulinski
2021-03-01 10:46             ` Greg Kroah-Hartman
2021-03-01 11:45               ` Maciej Kwapulinski
2021-02-16 17:46   ` Greg Kroah-Hartman
2021-02-17  7:30     ` Maciej Kwapulinski
2021-02-26 12:59     ` Maciej Kwapulinski
2021-02-26 13:03       ` Greg Kroah-Hartman
2021-03-09 18:26         ` Maciej Kwapulinski
2021-02-16 17:48   ` Randy Dunlap
2021-02-16 16:05 ` [PATCH v1 02/12] gna: add component of hardware operation Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 03/12] gna: read hardware info in the driver Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 04/12] gna: add memory handling Maciej Kwapulinski
2021-02-16 16:05 ` Maciej Kwapulinski [this message]
2021-02-16 16:05 ` [PATCH v1 06/12] gna: add hardware ids Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 07/12] gna: add request component Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 08/12] gna: implement scoring Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 09/12] gna: add a work queue to process scoring requests Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 10/12] gna: add interrupt handler Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 11/12] gna: add ioctl handler Maciej Kwapulinski
2021-02-16 16:05 ` [PATCH v1 12/12] gna: add a char device Maciej Kwapulinski
2021-02-16 17:48   ` Greg Kroah-Hartman
2021-02-16 17:28 ` [PATCH v1 00/12] Driver of Intel(R) Gaussian & Neural Accelerator Greg Kroah-Hartman

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