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From 967c89306de560a6da9539d24a0d63cb036d58ed Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Tue, 16 Feb 2010 11:14:14 +1000
Subject: [PATCH] drm/nouveau: use mutex for vbios lock
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
drivers/gpu/drm/nouveau/nouveau_bios.c | 7 +++----
drivers/gpu/drm/nouveau/nouveau_bios.h | 2 +-
2 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 2cd0fad..0e9cd1d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -5861,13 +5861,12 @@ nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nvbios *bios = &dev_priv->VBIOS;
struct init_exec iexec = { true, false };
- unsigned long flags;
- spin_lock_irqsave(&bios->lock, flags);
+ mutex_lock(&bios->lock);
bios->display.output = dcbent;
parse_init_table(bios, table, &iexec);
bios->display.output = NULL;
- spin_unlock_irqrestore(&bios->lock, flags);
+ mutex_unlock(&bios->lock);
}
static bool NVInitVBIOS(struct drm_device *dev)
@@ -5876,7 +5875,7 @@ static bool NVInitVBIOS(struct drm_device *dev)
struct nvbios *bios = &dev_priv->VBIOS;
memset(bios, 0, sizeof(struct nvbios));
- spin_lock_init(&bios->lock);
+ mutex_init(&bios->lock);
bios->dev = dev;
if (!NVShadowVBIOS(dev, bios->data))
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.h b/drivers/gpu/drm/nouveau/nouveau_bios.h
index 68446fd..fd94bd6 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.h
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.h
@@ -205,7 +205,7 @@ struct nvbios {
struct drm_device *dev;
struct nouveau_bios_info pub;
- spinlock_t lock;
+ struct mutex lock;
uint8_t data[NV_PROM_SIZE];
unsigned int length;
--
1.6.6.1
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