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
next prev 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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