diff options
| author | Jesse Barnes <jbarnes@jbarnes-d500.(none)> | 2008-04-29 12:36:04 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@jbarnes-d500.(none)> | 2008-04-29 12:39:38 -0700 |
| commit | cb33133ef354b77a8cf06b16ce95a0babbe8bc6f (patch) | |
| tree | 4995f3696de389b4bbf733502eddd8b276367b06 /linux-core | |
| parent | f31e04a96013c059fc90c98a878de14adbea524a (diff) | |
i915: fix off by one in VGA save/restore of AR & CR regs
Turns out it's important to save/restore AR14 in particular.
Diffstat (limited to 'linux-core')
| -rw-r--r-- | linux-core/i915_drv.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/linux-core/i915_drv.c b/linux-core/i915_drv.c index 5a6f0adc..91c2da23 100644 --- a/linux-core/i915_drv.c +++ b/linux-core/i915_drv.c @@ -172,7 +172,7 @@ static void i915_save_vga(struct drm_device *dev) i915_write_indexed(cr_index, cr_data, 0x11, i915_read_indexed(cr_index, cr_data, 0x11) & (~0x80)); - for (i = 0; i < 0x24; i++) + for (i = 0; i <= 0x24; i++) dev_priv->saveCR[i] = i915_read_indexed(cr_index, cr_data, i); /* Make sure we don't turn off CR group 0 writes */ @@ -181,7 +181,7 @@ static void i915_save_vga(struct drm_device *dev) /* Attribute controller registers */ inb(st01); dev_priv->saveAR_INDEX = inb(VGA_AR_INDEX); - for (i = 0; i < 20; i++) + for (i = 0; i <= 0x14; i++) dev_priv->saveAR[i] = i915_read_ar(st01, i, 0); inb(st01); outb(dev_priv->saveAR_INDEX, VGA_AR_INDEX); @@ -231,7 +231,7 @@ static void i915_restore_vga(struct drm_device *dev) /* CRT controller regs */ /* Enable CR group 0 writes */ i915_write_indexed(cr_index, cr_data, 0x11, dev_priv->saveCR[0x11]); - for (i = 0; i < 0x24; i++) + for (i = 0; i <= 0x24; i++) i915_write_indexed(cr_index, cr_data, i, dev_priv->saveCR[i]); /* Graphics controller regs */ @@ -248,7 +248,7 @@ static void i915_restore_vga(struct drm_device *dev) /* Attribute controller registers */ inb(st01); /* switch back to index mode */ - for (i = 0; i < 20; i++) + for (i = 0; i <= 0x14; i++) i915_write_ar(st01, i, dev_priv->saveAR[i], 0); inb(st01); /* switch back to index mode */ outb(dev_priv->saveAR_INDEX | 0x20, VGA_AR_INDEX); |