From: Tomasz Jankowski <tomasz1.jankowski@xxxxxxxxx>
Get the hardware information from register MMIO_IBUFFS
Signed-off-by: Tomasz Jankowski <tomasz1.jankowski@xxxxxxxxx>
Tested-by: Savo Novakovic <savox.novakovic@xxxxxxxxx>
Co-developed-by: Jianxun Zhang <jianxun.zhang@xxxxxxxxxxxxxxx>
Signed-off-by: Jianxun Zhang <jianxun.zhang@xxxxxxxxxxxxxxx>
Co-developed-by: Maciej Kwapulinski <maciej.kwapulinski@xxxxxxxxxxxxxxx>
Signed-off-by: Maciej Kwapulinski <maciej.kwapulinski@xxxxxxxxxxxxxxx>
---
drivers/misc/intel/gna/device.c | 4 ++++
drivers/misc/intel/gna/device.h | 1 +
drivers/misc/intel/gna/hw.h | 4 ++++
3 files changed, 9 insertions(+)
diff --git a/drivers/misc/intel/gna/device.c b/drivers/misc/intel/gna/device.c
index 8722935d26bf..45b4b6df64ef 100644
--- a/drivers/misc/intel/gna/device.c
+++ b/drivers/misc/intel/gna/device.c
@@ -21,6 +21,7 @@ int gna_probe(struct device *parent, struct gna_dev_info *dev_info, void __iomem
static atomic_t dev_last_idx = ATOMIC_INIT(-1);
struct gna_private *gna_priv;
const char *dev_misc_name;
+ u32 bld_reg;
int ret;
gna_priv = devm_kzalloc(parent, sizeof(*gna_priv), GFP_KERNEL);
@@ -48,6 +49,9 @@ 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);
+
return 0;
}
diff --git a/drivers/misc/intel/gna/device.h b/drivers/misc/intel/gna/device.h
index a188f482a273..057dec0e1983 100644
--- a/drivers/misc/intel/gna/device.h
+++ b/drivers/misc/intel/gna/device.h
@@ -24,6 +24,7 @@ struct gna_private {
/* device related resources */
void __iomem *iobase;
struct gna_dev_info info;
+ struct gna_hw_info hw_info;
};
int gna_probe(struct device *parent, struct gna_dev_info *dev_info, void __iomem *iobase);
diff --git a/drivers/misc/intel/gna/hw.h b/drivers/misc/intel/gna/hw.h
index f9c0566cbe60..f61792f9dd52 100644
--- a/drivers/misc/intel/gna/hw.h
+++ b/drivers/misc/intel/gna/hw.h
@@ -47,6 +47,10 @@ struct gna_desc_info {
struct gna_mmu_info mmu_info;
};
+struct gna_hw_info {
+ u8 in_buf_s;
+};
+
struct gna_dev_info {
u32 hwid;
u32 num_pagetables;
--
2.28.0
