linux-kernel - [PATCH net-next 07/10] net: ipa: share field mask values for GSI general interrupt

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Message-Id: <20200928230446.20561-8-elder@linaro.org>
Date:   Mon, 28 Sep 2020 18:04:43 -0500
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     evgreen@...omium.org, subashab@...eaurora.org,
        cpratapa@...eaurora.org, bjorn.andersson@...aro.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next 07/10] net: ipa: share field mask values for GSI general interrupt

The GSI general interrupt is managed by three registers: enable;
status; and clear.  The three registers have same set of field bits
at the same locations.  Use a common set of field masks for all
three registers to avoid duplication.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/gsi.c     |  2 +-
 drivers/net/ipa/gsi_reg.h | 21 ++++++---------------
 2 files changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
index 203d079c481c4..cb676083dfa73 100644
--- a/drivers/net/ipa/gsi.c
+++ b/drivers/net/ipa/gsi.c
@@ -271,7 +271,7 @@ static void gsi_irq_enable(struct gsi *gsi)
 	iowrite32(val, gsi->virt + GSI_CNTXT_GLOB_IRQ_EN_OFFSET);
 
 	/* Never enable GSI_BREAK_POINT */
-	val = GSI_CNTXT_GSI_IRQ_ALL & ~EN_BREAK_POINT_FMASK;
+	val = GSI_CNTXT_GSI_IRQ_ALL & ~BREAK_POINT_FMASK;
 	iowrite32(val, gsi->virt + GSI_CNTXT_GSI_IRQ_EN_OFFSET);
 }
 
diff --git a/drivers/net/ipa/gsi_reg.h b/drivers/net/ipa/gsi_reg.h
index b789e0f866fa0..8e0e9350c3831 100644
--- a/drivers/net/ipa/gsi_reg.h
+++ b/drivers/net/ipa/gsi_reg.h
@@ -340,29 +340,20 @@
 			GSI_EE_N_CNTXT_GSI_IRQ_STTS_OFFSET(GSI_EE_AP)
 #define GSI_EE_N_CNTXT_GSI_IRQ_STTS_OFFSET(ee) \
 			(0x0001f118 + 0x4000 * (ee))
-#define BREAK_POINT_FMASK		GENMASK(0, 0)
-#define BUS_ERROR_FMASK			GENMASK(1, 1)
-#define CMD_FIFO_OVRFLOW_FMASK		GENMASK(2, 2)
-#define MCS_STACK_OVRFLOW_FMASK		GENMASK(3, 3)
-
 #define GSI_CNTXT_GSI_IRQ_EN_OFFSET \
 			GSI_EE_N_CNTXT_GSI_IRQ_EN_OFFSET(GSI_EE_AP)
 #define GSI_EE_N_CNTXT_GSI_IRQ_EN_OFFSET(ee) \
 			(0x0001f120 + 0x4000 * (ee))
-#define EN_BREAK_POINT_FMASK		GENMASK(0, 0)
-#define EN_BUS_ERROR_FMASK		GENMASK(1, 1)
-#define EN_CMD_FIFO_OVRFLOW_FMASK	GENMASK(2, 2)
-#define EN_MCS_STACK_OVRFLOW_FMASK	GENMASK(3, 3)
-#define GSI_CNTXT_GSI_IRQ_ALL		GENMASK(3, 0)
-
 #define GSI_CNTXT_GSI_IRQ_CLR_OFFSET \
 			GSI_EE_N_CNTXT_GSI_IRQ_CLR_OFFSET(GSI_EE_AP)
 #define GSI_EE_N_CNTXT_GSI_IRQ_CLR_OFFSET(ee) \
 			(0x0001f128 + 0x4000 * (ee))
-#define CLR_BREAK_POINT_FMASK		GENMASK(0, 0)
-#define CLR_BUS_ERROR_FMASK		GENMASK(1, 1)
-#define CLR_CMD_FIFO_OVRFLOW_FMASK	GENMASK(2, 2)
-#define CLR_MCS_STACK_OVRFLOW_FMASK	GENMASK(3, 3)
+/* The masks below are used for the general IRQ STTS, EN, and CLR registers */
+#define BREAK_POINT_FMASK		GENMASK(0, 0)
+#define BUS_ERROR_FMASK			GENMASK(1, 1)
+#define CMD_FIFO_OVRFLOW_FMASK		GENMASK(2, 2)
+#define MCS_STACK_OVRFLOW_FMASK		GENMASK(3, 3)
+#define GSI_CNTXT_GSI_IRQ_ALL		GENMASK(3, 0)
 
 #define GSI_CNTXT_INTSET_OFFSET \
 			GSI_EE_N_CNTXT_INTSET_OFFSET(GSI_EE_AP)
-- 
2.20.1