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drm/nouveau: make vbios parser runnable from an atomic context 

The nv50 display isr bh needs to be converted to a tasklet, which means
we can't sleep anymore.  The places we execute vbios init tables are
rare, and not in any way performance critical, so this isn't a huge
problem.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2011-02-03 20:10:49 +10:00
parent 8348f36d89
commit c7ca4d1b6b
2 changed files with 9 additions and 9 deletions
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16
drivers/gpu/drm/nouveau/nouveau_bios.c
View File

@ -282,7 +282,7 @@ static void still_alive(void)
{
#if 0
sync();
msleep(2);
mdelay(2);
#endif
}
@ -1904,7 +1904,7 @@ init_condition_time(struct nvbios *bios, uint16_t offset,
BIOSLOG(bios, "0x%04X: "
"Condition not met, sleeping for 20ms\n",
offset);
msleep(20);
mdelay(20);
}
}
@ -1938,7 +1938,7 @@ init_ltime(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
BIOSLOG(bios, "0x%04X: Sleeping for 0x%04X milliseconds\n",
offset, time);
msleep(time);
mdelay(time);
return 3;
}
@ -2962,7 +2962,7 @@ init_time(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
if (time < 1000)
udelay(time);
else
msleep((time + 900) / 1000);
mdelay((time + 900) / 1000);
return 3;
}
@ -3856,7 +3856,7 @@ static int call_lvds_manufacturer_script(struct drm_device *dev, struct dcb_entr
if (script == LVDS_PANEL_OFF) {
/* off-on delay in ms */
msleep(ROM16(bios->data[bios->fp.xlated_entry + 7]));
mdelay(ROM16(bios->data[bios->fp.xlated_entry + 7]));
}
#ifdef __powerpc__
/* Powerbook specific quirks */
@ -6702,11 +6702,11 @@ nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
struct nvbios *bios = &dev_priv->vbios;
struct init_exec iexec = { true, false };
mutex_lock(&bios->lock);
spin_lock_bh(&bios->lock);
bios->display.output = dcbent;
parse_init_table(bios, table, &iexec);
bios->display.output = NULL;
mutex_unlock(&bios->lock);
spin_unlock_bh(&bios->lock);
}
static bool NVInitVBIOS(struct drm_device *dev)
@ -6715,7 +6715,7 @@ static bool NVInitVBIOS(struct drm_device *dev)
struct nvbios *bios = &dev_priv->vbios;
memset(bios, 0, sizeof(struct nvbios));
mutex_init(&bios->lock);
spin_lock_init(&bios->lock);
bios->dev = dev;
if (!NVShadowVBIOS(dev, bios->data))

2
drivers/gpu/drm/nouveau/nouveau_bios.h
View File

@ -251,7 +251,7 @@ struct nvbios {
uint8_t digital_min_front_porch;
bool fp_no_ddc;
struct mutex lock;
spinlock_t lock;
uint8_t data[NV_PROM_SIZE];
unsigned int length;