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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-05-09 15:21:52 +0300 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2019-05-20 18:04:47 +0300 |
| commit | 1a74fc0b3f49a0603f230b6f087da33bda3d7c66 (patch) | |
| tree | 96252e184af81abf8bce0982c38ef98a3abf615d /drivers/gpu/drm/i915/intel_display.c | |
| parent | 4cc79cbb01ef35dd822f96160f78f0012843cf3c (diff) | |
| download | linux-1a74fc0b3f49a0603f230b6f087da33bda3d7c66.tar.xz | |
drm/i915: Add a new "remapped" gtt_view
To overcome display engine stride limits we'll want to remap the
pages in the GTT. To that end we need a new gtt_view type which
is just like the "rotated" type except not rotated.
v2: Use intel_remapped_plane_info base type
s/unused/unused_mbz/ (Chris)
Separate BUILD_BUG_ON()s (Chris)
Use I915_GTT_PAGE_SIZE (Chris)
v3: Use i915_gem_object_get_dma_address() (Chris)
Trim the sg (Tvrtko)
v4: Actually trim this time. Limit the max length
to one row of pages to keep things simple
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190509122159.24376-2-ville.syrjala@linux.intel.com
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_display.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b53676e558cb..95c850d7faab 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -1997,6 +1997,17 @@ unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info return size; } +unsigned int intel_remapped_info_size(const struct intel_remapped_info *rem_info) +{ + unsigned int size = 0; + int i; + + for (i = 0 ; i < ARRAY_SIZE(rem_info->plane); i++) + size += rem_info->plane[i].width * rem_info->plane[i].height; + + return size; +} + static void intel_fill_fb_ggtt_view(struct i915_ggtt_view *view, const struct drm_framebuffer *fb, |