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drm/i915/cnl: Add support for horizontal plane flipping 

CNL supports horizontal plane flipping on non-linear plane formats.

v2:
- Avoid BUG unlike elsewhere in the code (Ville)
- Hoist the rotation-tiling restriction check (Ville)

v3 (Rodrigo):
- Rebased after a while.
- Fix small indentation issues.

Bspec: 7656
Suggested-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171215213800.7896-1-rodrigo.vivi@intel.com
This commit is contained in:
Joonas Lahtinen 2017-12-15 13:38:00 -08:00 committed by Rodrigo Vivi
parent 8edcda1266
commit 5f8e3f57ac
2 changed files with 36 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/i915_reg.h
View File

@ -6329,6 +6329,7 @@ enum {
#define PLANE_CTL_TILED_X ( 1 << 10)
#define PLANE_CTL_TILED_Y ( 4 << 10)
#define PLANE_CTL_TILED_YF ( 5 << 10)
#define PLANE_CTL_FLIP_HORIZONTAL ( 1 << 8)
#define PLANE_CTL_ALPHA_MASK (0x3 << 4) /* Pre-GLK */
#define PLANE_CTL_ALPHA_DISABLE ( 0 << 4)
#define PLANE_CTL_ALPHA_SW_PREMULTIPLY ( 2 << 4)

40
drivers/gpu/drm/i915/intel_display.c
View File

@ -3073,6 +3073,12 @@ int skl_check_plane_surface(struct intel_plane_state *plane_state)
unsigned int rotation = plane_state->base.rotation;
int ret;
if (rotation & DRM_MODE_REFLECT_X &&
fb->modifier == DRM_FORMAT_MOD_LINEAR) {
DRM_DEBUG_KMS("horizontal flip is not supported with linear surface formats\n");
return -EINVAL;
}
if (!plane_state->base.visible)
return 0;
@ -3453,9 +3459,9 @@ static u32 skl_plane_ctl_tiling(uint64_t fb_modifier)
return 0;
}
static u32 skl_plane_ctl_rotation(unsigned int rotation)
static u32 skl_plane_ctl_rotate(unsigned int rotate)
{
switch (rotation) {
switch (rotate) {
case DRM_MODE_ROTATE_0:
break;
/*
@ -3469,7 +3475,22 @@ static u32 skl_plane_ctl_rotation(unsigned int rotation)
case DRM_MODE_ROTATE_270:
return PLANE_CTL_ROTATE_90;
default:
MISSING_CASE(rotation);
MISSING_CASE(rotate);
}
return 0;
}
static u32 cnl_plane_ctl_flip(unsigned int reflect)
{
switch (reflect) {
case 0:
break;
case DRM_MODE_REFLECT_X:
return PLANE_CTL_FLIP_HORIZONTAL;
case DRM_MODE_REFLECT_Y:
default:
MISSING_CASE(reflect);
}
return 0;
@ -3497,7 +3518,11 @@ u32 skl_plane_ctl(const struct intel_crtc_state *crtc_state,
plane_ctl |= skl_plane_ctl_format(fb->format->format);
plane_ctl |= skl_plane_ctl_tiling(fb->modifier);
plane_ctl |= skl_plane_ctl_rotation(rotation);
plane_ctl |= skl_plane_ctl_rotate(rotation & DRM_MODE_ROTATE_MASK);
if (INTEL_GEN(dev_priv) >= 10)
plane_ctl |= cnl_plane_ctl_flip(rotation &
DRM_MODE_REFLECT_MASK);
if (key->flags & I915_SET_COLORKEY_DESTINATION)
plane_ctl |= PLANE_CTL_KEY_ENABLE_DESTINATION;
@ -13300,7 +13325,12 @@ intel_primary_plane_create(struct drm_i915_private *dev_priv, enum pipe pipe)
if (ret)
goto fail;
if (INTEL_GEN(dev_priv) >= 9) {
if (INTEL_GEN(dev_priv) >= 10) {
supported_rotations =
DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270 |
DRM_MODE_REFLECT_X;
} else if (INTEL_GEN(dev_priv) >= 9) {
supported_rotations =
DRM_MODE_ROTATE_0 | DRM_MODE_ROTATE_90 |
DRM_MODE_ROTATE_180 | DRM_MODE_ROTATE_270;