linux-kernel - [PATCH] gpu: host1x: Fix MLOCK's debug info

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Message-Id: <1435519624-16444-1-git-send-email-digetx@gmail.com>
Date:	Sun, 28 Jun 2015 22:27:02 +0300
From:	Dmitry Osipenko <digetx@...il.com>
To:	Thierry Reding <thierry.reding@...il.com>
Cc:	Dmitry Osipenko <digetx@...il.com>,
	Terje Bergström <tbergstrom@...dia.com>,
	dri-devel@...ts.freedesktop.org, linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] gpu: host1x: Fix MLOCK's debug info

MLOCK's debug info, spewed on CDMA timeout, contains meaningless MLOCK
owner channel ID because HOST1X_SYNC_MLOCK_OWNER_CHID_F() returns shifted
value, while unshifted should be used. Fix it by changing '_F' to '_V'.

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/gpu/host1x/hw/debug_hw.c         | 2 +-
 drivers/gpu/host1x/hw/hw_host1x01_sync.h | 8 ++++----
 drivers/gpu/host1x/hw/hw_host1x02_sync.h | 8 ++++----
 drivers/gpu/host1x/hw/hw_host1x04_sync.h | 8 ++++----
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/host1x/hw/debug_hw.c b/drivers/gpu/host1x/hw/debug_hw.c
index 791de93..cc3f182 100644
--- a/drivers/gpu/host1x/hw/debug_hw.c
+++ b/drivers/gpu/host1x/hw/debug_hw.c
@@ -298,7 +298,7 @@ static void host1x_debug_show_mlocks(struct host1x *host, struct output *o)
 			host1x_sync_readl(host, HOST1X_SYNC_MLOCK_OWNER(i));
 		if (HOST1X_SYNC_MLOCK_OWNER_CH_OWNS_V(owner))
 			host1x_debug_output(o, "%d: locked by channel %d\n",
-				i, HOST1X_SYNC_MLOCK_OWNER_CHID_F(owner));
+				i, HOST1X_SYNC_MLOCK_OWNER_CHID_V(owner));
 		else if (HOST1X_SYNC_MLOCK_OWNER_CPU_OWNS_V(owner))
 			host1x_debug_output(o, "%d: locked by cpu\n", i);
 		else
diff --git a/drivers/gpu/host1x/hw/hw_host1x01_sync.h b/drivers/gpu/host1x/hw/hw_host1x01_sync.h
index ac704e5..31238c2 100644
--- a/drivers/gpu/host1x/hw/hw_host1x01_sync.h
+++ b/drivers/gpu/host1x/hw/hw_host1x01_sync.h
@@ -131,12 +131,12 @@ static inline u32 host1x_sync_mlock_owner_r(unsigned int id)
 }
 #define HOST1X_SYNC_MLOCK_OWNER(id) \
 	host1x_sync_mlock_owner_r(id)
-static inline u32 host1x_sync_mlock_owner_chid_f(u32 v)
+static inline u32 host1x_sync_mlock_owner_chid_v(u32 v)
 {
-	return (v & 0xf) << 8;
+	return (v >> 8) & 0xf;
 }
-#define HOST1X_SYNC_MLOCK_OWNER_CHID_F(v) \
-	host1x_sync_mlock_owner_chid_f(v)
+#define HOST1X_SYNC_MLOCK_OWNER_CHID_V(v) \
+	host1x_sync_mlock_owner_chid_v(v)
 static inline u32 host1x_sync_mlock_owner_cpu_owns_v(u32 r)
 {
 	return (r >> 1) & 0x1;
diff --git a/drivers/gpu/host1x/hw/hw_host1x02_sync.h b/drivers/gpu/host1x/hw/hw_host1x02_sync.h
index 4495401..540c7b6 100644
--- a/drivers/gpu/host1x/hw/hw_host1x02_sync.h
+++ b/drivers/gpu/host1x/hw/hw_host1x02_sync.h
@@ -131,12 +131,12 @@ static inline u32 host1x_sync_mlock_owner_r(unsigned int id)
 }
 #define HOST1X_SYNC_MLOCK_OWNER(id) \
 	host1x_sync_mlock_owner_r(id)
-static inline u32 host1x_sync_mlock_owner_chid_f(u32 v)
+static inline u32 host1x_sync_mlock_owner_chid_v(u32 v)
 {
-	return (v & 0xf) << 8;
+	return (v >> 8) & 0xf;
 }
-#define HOST1X_SYNC_MLOCK_OWNER_CHID_F(v) \
-	host1x_sync_mlock_owner_chid_f(v)
+#define HOST1X_SYNC_MLOCK_OWNER_CHID_V(v) \
+	host1x_sync_mlock_owner_chid_v(v)
 static inline u32 host1x_sync_mlock_owner_cpu_owns_v(u32 r)
 {
 	return (r >> 1) & 0x1;
diff --git a/drivers/gpu/host1x/hw/hw_host1x04_sync.h b/drivers/gpu/host1x/hw/hw_host1x04_sync.h
index ef2275b..3d6c8ec 100644
--- a/drivers/gpu/host1x/hw/hw_host1x04_sync.h
+++ b/drivers/gpu/host1x/hw/hw_host1x04_sync.h
@@ -131,12 +131,12 @@ static inline u32 host1x_sync_mlock_owner_r(unsigned int id)
 }
 #define HOST1X_SYNC_MLOCK_OWNER(id) \
 	host1x_sync_mlock_owner_r(id)
-static inline u32 host1x_sync_mlock_owner_chid_f(u32 v)
+static inline u32 host1x_sync_mlock_owner_chid_v(u32 v)
 {
-	return (v & 0xf) << 8;
+	return (v >> 8) & 0xf;
 }
-#define HOST1X_SYNC_MLOCK_OWNER_CHID_F(v) \
-	host1x_sync_mlock_owner_chid_f(v)
+#define HOST1X_SYNC_MLOCK_OWNER_CHID_V(v) \
+	host1x_sync_mlock_owner_chid_v(v)
 static inline u32 host1x_sync_mlock_owner_cpu_owns_v(u32 r)
 {
 	return (r >> 1) & 0x1;
-- 
2.4.4

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