diff options
| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2014-06-05 20:02:59 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2014-07-09 09:52:13 +0200 |
| commit | f1e1c2129b79cfdaf07bca37c5a10569fe021abe (patch) | |
| tree | 86aacb42d094710977528a4cb8b103e611f83a18 /drivers/gpu/drm/i915/i915_reg.h | |
| parent | aceb365ca9a51fb604313c08ed3061d6cc643237 (diff) | |
| download | lwn-f1e1c2129b79cfdaf07bca37c5a10569fe021abe.tar.gz lwn-f1e1c2129b79cfdaf07bca37c5a10569fe021abe.zip | |
drm/i915: Don't clobber the GTT when it's within stolen memory
On most gen2-4 platforms the GTT can be (or maybe always is?)
inside the stolen memory region. If that's the case, reduce the
size of the stolen memory appropriately to make make sure we
don't clobber the GTT.
v2: Deal with gen4 36 bit physical address
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=80151
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_reg.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_reg.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index e691b30b2817..a5bab61bfc00 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -942,6 +942,9 @@ enum punit_power_well { /* * Instruction and interrupt control regs */ +#define PGTBL_CTL 0x02020 +#define PGTBL_ADDRESS_LO_MASK 0xfffff000 /* bits [31:12] */ +#define PGTBL_ADDRESS_HI_MASK 0x000000f0 /* bits [35:32] (gen4) */ #define PGTBL_ER 0x02024 #define RENDER_RING_BASE 0x02000 #define BSD_RING_BASE 0x04000 |