linux-kernel - [PATCH net-next v2 4/5] net: ipa: repurpose gsi_irq_ieob

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Date:   Thu, 21 Jan 2021 05:48:20 -0600
From:   Alex Elder <elder@...aro.org>
To:     davem@...emloft.net, kuba@...nel.org
Cc:     elder@...nel.org, evgreen@...omium.org, bjorn.andersson@...aro.org,
        cpratapa@...eaurora.org, subashab@...eaurora.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 4/5] net: ipa: repurpose gsi_irq_ieob_disable()

Rename gsi_irq_ieob_disable() to be gsi_irq_ieob_disable_one().

Introduce a new function gsi_irq_ieob_disable() that takes a mask of
events to disable rather than a single event id.  This will be used
in the next patch.

Rename gsi_irq_ieob_enable() to be gsi_irq_ieob_enable_one() to be
consistent.

Signed-off-by: Alex Elder <elder@...aro.org>
---
 drivers/net/ipa/gsi.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ipa/gsi.c b/drivers/net/ipa/gsi.c
index 6e5817e16c0f6..0391f5a207c9f 100644
--- a/drivers/net/ipa/gsi.c
+++ b/drivers/net/ipa/gsi.c
@@ -272,7 +272,7 @@ static void gsi_irq_ch_ctrl_disable(struct gsi *gsi)
 	iowrite32(0, gsi->virt + GSI_CNTXT_SRC_CH_IRQ_MSK_OFFSET);
 }
 
-static void gsi_irq_ieob_enable(struct gsi *gsi, u32 evt_ring_id)
+static void gsi_irq_ieob_enable_one(struct gsi *gsi, u32 evt_ring_id)
 {
 	bool enable_ieob = !gsi->ieob_enabled_bitmap;
 	u32 val;
@@ -286,11 +286,11 @@ static void gsi_irq_ieob_enable(struct gsi *gsi, u32 evt_ring_id)
 		gsi_irq_type_enable(gsi, GSI_IEOB);
 }
 
-static void gsi_irq_ieob_disable(struct gsi *gsi, u32 evt_ring_id)
+static void gsi_irq_ieob_disable(struct gsi *gsi, u32 event_mask)
 {
 	u32 val;
 
-	gsi->ieob_enabled_bitmap &= ~BIT(evt_ring_id);
+	gsi->ieob_enabled_bitmap &= ~event_mask;
 
 	/* Disable the interrupt type if this was the last enabled channel */
 	if (!gsi->ieob_enabled_bitmap)
@@ -300,6 +300,11 @@ static void gsi_irq_ieob_disable(struct gsi *gsi, u32 evt_ring_id)
 	iowrite32(val, gsi->virt + GSI_CNTXT_SRC_IEOB_IRQ_MSK_OFFSET);
 }
 
+static void gsi_irq_ieob_disable_one(struct gsi *gsi, u32 evt_ring_id)
+{
+	gsi_irq_ieob_disable(gsi, BIT(evt_ring_id));
+}
+
 /* Enable all GSI_interrupt types */
 static void gsi_irq_enable(struct gsi *gsi)
 {
@@ -766,13 +771,13 @@ static void gsi_channel_freeze(struct gsi_channel *channel)
 
 	napi_disable(&channel->napi);
 
-	gsi_irq_ieob_disable(channel->gsi, channel->evt_ring_id);
+	gsi_irq_ieob_disable_one(channel->gsi, channel->evt_ring_id);
 }
 
 /* Allow transactions to be used on the channel again. */
 static void gsi_channel_thaw(struct gsi_channel *channel)
 {
-	gsi_irq_ieob_enable(channel->gsi, channel->evt_ring_id);
+	gsi_irq_ieob_enable_one(channel->gsi, channel->evt_ring_id);
 
 	napi_enable(&channel->napi);
 }
@@ -1207,7 +1212,7 @@ static void gsi_isr_ieob(struct gsi *gsi)
 
 		event_mask ^= BIT(evt_ring_id);
 
-		gsi_irq_ieob_disable(gsi, evt_ring_id);
+		gsi_irq_ieob_disable_one(gsi, evt_ring_id);
 		napi_schedule(&gsi->evt_ring[evt_ring_id].channel->napi);
 	}
 }
@@ -1555,7 +1560,7 @@ static int gsi_channel_poll(struct napi_struct *napi, int budget)
 	}
 
 	if (count < budget && napi_complete(napi))
-		gsi_irq_ieob_enable(channel->gsi, channel->evt_ring_id);
+		gsi_irq_ieob_enable_one(channel->gsi, channel->evt_ring_id);
 
 	return count;
 }
-- 
2.20.1