linux-kernel - [PATCH v3 05/14] intel

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Message-Id: <20210513110040.2268-6-maciej.kwapulinski@linux.intel.com>
Date:   Thu, 13 May 2021 13:00:31 +0200
From:   Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Arnd Bergmann <arnd@...db.de>,
        Jonathan Corbet <corbet@....net>,
        Derek Kiernan <derek.kiernan@...inx.com>,
        Dragan Cvetic <dragan.cvetic@...inx.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     linux-kernel@...r.kernel.org, linux-doc@...r.kernel.org,
        Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>,
        Tomasz Jankowski <tomasz1.jankowski@...el.com>,
        Savo Novakovic <savox.novakovic@...el.com>
Subject: [PATCH v3 05/14] intel_gna: initialize mmu

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

Setup mmu in the driver with a new memory component.

Signed-off-by: Tomasz Jankowski <tomasz1.jankowski@...el.com>
Tested-by: Savo Novakovic <savox.novakovic@...el.com>
Co-Developed-by: Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>
Signed-off-by: Maciej Kwapulinski <maciej.kwapulinski@...ux.intel.com>
---
 drivers/misc/intel/gna/device.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/misc/intel/gna/device.c b/drivers/misc/intel/gna/device.c
index ed7d3c0223df..50cac8139dcc 100644
--- a/drivers/misc/intel/gna/device.c
+++ b/drivers/misc/intel/gna/device.c
@@ -59,6 +59,18 @@ int gna_probe(struct device *parent, struct gna_dev_info *dev_info, void __iomem
 	bld_reg = gna_reg_read(gna_priv, GNA_MMIO_IBUFFS);
 	gna_priv->hw_info.in_buf_s = bld_reg & GENMASK(7, 0);
 
+	ret = gna_mmu_alloc(gna_priv);
+	if (ret) {
+		dev_err(parent, "mmu allocation failed\n");
+		return ret;
+
+	}
+	dev_dbg(parent, "maximum memory size %llu num pd %d\n",
+		gna_priv->info.max_hw_mem, gna_priv->info.num_pagetables);
+	dev_dbg(parent, "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);
-- 
2.28.0