[PATCH net-next 06/11] net: ipa: fix BCR register field definitions

From: Alex Elder
Date: Mon Nov 16 2020 - 18:39:06 EST


The backward compatibility register field masks are defined using
single-bit masks defined with BIT(x) rather than GENMASK(x, x).
Change this one set of definitions to follow the GENMASK() pattern
used everywhere else. Add a few missing field definitions for this
register as well.

Signed-off-by: Alex Elder <elder@xxxxxxxxxx>
---
drivers/net/ipa/ipa_reg.h | 31 ++++++++++++++++++++++---------
1 file changed, 22 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ipa/ipa_reg.h b/drivers/net/ipa/ipa_reg.h
index 9e92fe022c6f9..a05684785e577 100644
--- a/drivers/net/ipa/ipa_reg.h
+++ b/drivers/net/ipa/ipa_reg.h
@@ -174,22 +174,35 @@ static inline u32 ipa_reg_filt_rout_hash_flush_offset(enum ipa_version version)
#define IPV4_FILTER_HASH_FMASK GENMASK(12, 12)

#define IPA_REG_BCR_OFFSET 0x000001d0
-#define BCR_CMDQ_L_LACK_ONE_ENTRY BIT(0)
-#define BCR_TX_NOT_USING_BRESP BIT(1)
-#define BCR_SUSPEND_L2_IRQ BIT(3)
-#define BCR_HOLB_DROP_L2_IRQ BIT(4)
-#define BCR_DUAL_TX BIT(5)
+/* The next two fields are not present for IPA v4.2 */
+#define BCR_CMDQ_L_LACK_ONE_ENTRY_FMASK GENMASK(0, 0)
+#define BCR_TX_NOT_USING_BRESP_FMASK GENMASK(1, 1)
+/* The next field is invalid for IPA v4.1 */
+#define BCR_TX_SUSPEND_IRQ_ASSERT_ONCE_FMASK GENMASK(2, 2)
+/* The next two fields are not present for IPA v4.2 */
+#define BCR_SUSPEND_L2_IRQ_FMASK GENMASK(3, 3)
+#define BCR_HOLB_DROP_L2_IRQ_FMASK GENMASK(4, 4)
+#define BCR_DUAL_TX_FMASK GENMASK(5, 5)
+#define BCR_ENABLE_FILTER_DATA_CACHE_FMASK GENMASK(6, 6)
+#define BCR_NOTIF_PRIORITY_OVER_ZLT_FMASK GENMASK(7, 7)
+#define BCR_FILTER_PREFETCH_EN_FMASK GENMASK(8, 8)
+#define BCR_ROUTER_PREFETCH_EN_FMASK GENMASK(9, 9)

/* Backward compatibility register value to use for each version */
static inline u32 ipa_reg_bcr_val(enum ipa_version version)
{
if (version == IPA_VERSION_3_5_1)
- return BCR_CMDQ_L_LACK_ONE_ENTRY | BCR_TX_NOT_USING_BRESP |
- BCR_SUSPEND_L2_IRQ | BCR_HOLB_DROP_L2_IRQ | BCR_DUAL_TX;
+ return BCR_CMDQ_L_LACK_ONE_ENTRY_FMASK |
+ BCR_TX_NOT_USING_BRESP_FMASK |
+ BCR_SUSPEND_L2_IRQ_FMASK |
+ BCR_HOLB_DROP_L2_IRQ_FMASK |
+ BCR_DUAL_TX_FMASK;

if (version == IPA_VERSION_4_0 || version == IPA_VERSION_4_1)
- return BCR_CMDQ_L_LACK_ONE_ENTRY | BCR_SUSPEND_L2_IRQ |
- BCR_HOLB_DROP_L2_IRQ | BCR_DUAL_TX;
+ return BCR_CMDQ_L_LACK_ONE_ENTRY_FMASK |
+ BCR_SUSPEND_L2_IRQ_FMASK |
+ BCR_HOLB_DROP_L2_IRQ_FMASK |
+ BCR_DUAL_TX_FMASK;

return 0x00000000;
}
--
2.20.1