diff options
| author | David Weinehall <david.weinehall@linux.intel.com> | 2015-05-20 17:00:13 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-05-29 11:15:19 +0300 |
| commit | b1b38278e12b04cf9a227f6af2c24651cf6e8a85 (patch) | |
| tree | e433227e4e8f1fffc26c55c55ade6086b1ea0197 /drivers/gpu/drm/i915/i915_drv.h | |
| parent | 4373f0f24ed52549d4d6a0d7e155301476ec0a36 (diff) | |
| download | linux-b1b38278e12b04cf9a227f6af2c24651cf6e8a85.tar.xz | |
drm/i915: add a context parameter to {en, dis}able zero address mapping
Export a new context parameter that can be set/queried through the
context_{get,set}param ioctls. This parameter is passed as a context
flag and decides whether or not a GPU address mapping is allowed to
be made at address zero. The default is to allow such mappings.
Signed-off-by: David Weinehall <david.weinehall@intel.com>
Acked-by: "Zou, Nanhai" <nanhai.zou@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_drv.h')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_drv.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 72f5a3f9dbf2..d35b592c7378 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -805,11 +805,15 @@ struct i915_ctx_hang_stats { /* This must match up with the value previously used for execbuf2.rsvd1. */ #define DEFAULT_CONTEXT_HANDLE 0 + +#define CONTEXT_NO_ZEROMAP (1<<0) /** * struct intel_context - as the name implies, represents a context. * @ref: reference count. * @user_handle: userspace tracking identity for this context. * @remap_slice: l3 row remapping information. + * @flags: context specific flags: + * CONTEXT_NO_ZEROMAP: do not allow mapping things to page 0. * @file_priv: filp associated with this context (NULL for global default * context). * @hang_stats: information about the role of this context in possible GPU @@ -826,6 +830,7 @@ struct intel_context { struct kref ref; int user_handle; uint8_t remap_slice; + int flags; struct drm_i915_file_private *file_priv; struct i915_ctx_hang_stats hang_stats; struct i915_hw_ppgtt *ppgtt; |