[PATCH v3 05/14] intel_gna: initialize mmu

From: Maciej Kwapulinski
Date: Thu May 13 2021 - 07:02:41 EST


From: Tomasz Jankowski <tomasz1.jankowski@xxxxxxxxx>

Setup mmu in the driver with a new memory component.

Signed-off-by: Tomasz Jankowski <tomasz1.jankowski@xxxxxxxxx>
Tested-by: Savo Novakovic <savox.novakovic@xxxxxxxxx>
Co-Developed-by: Maciej Kwapulinski <maciej.kwapulinski@xxxxxxxxxxxxxxx>
Signed-off-by: Maciej Kwapulinski <maciej.kwapulinski@xxxxxxxxxxxxxxx>
---
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