diff options
Diffstat (limited to 'target/linux/brcm2708/patches-4.4/0283-drm-vc4-Fix-which-value-is-being-used-for-source-ima.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.4/0283-drm-vc4-Fix-which-value-is-being-used-for-source-ima.patch | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.4/0283-drm-vc4-Fix-which-value-is-being-used-for-source-ima.patch b/target/linux/brcm2708/patches-4.4/0283-drm-vc4-Fix-which-value-is-being-used-for-source-ima.patch new file mode 100644 index 0000000000..6b32b37689 --- /dev/null +++ b/target/linux/brcm2708/patches-4.4/0283-drm-vc4-Fix-which-value-is-being-used-for-source-ima.patch @@ -0,0 +1,77 @@ +From b5b8069d79586dd9ff61b7e71fa0754a211dd0a8 Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Mon, 28 Dec 2015 14:45:25 -0800 +Subject: [PATCH 283/381] drm/vc4: Fix which value is being used for source + image size. + +This doesn't matter yet since we only allow 1:1 scaling, but the +comment clearly says we should be using the source size. + +Signed-off-by: Eric Anholt <eric@anholt.net> +(cherry picked from commit f863e356013d628fa65b1cd89aa298eed26fc936) +--- + drivers/gpu/drm/vc4/vc4_plane.c | 23 ++++++++++++++--------- + 1 file changed, 14 insertions(+), 9 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_plane.c ++++ b/drivers/gpu/drm/vc4/vc4_plane.c +@@ -47,6 +47,8 @@ struct vc4_plane_state { + + /* Clipped coordinates of the plane on the display. */ + int crtc_x, crtc_y, crtc_w, crtc_h; ++ /* Clipped size of the area scanned from in the FB. */ ++ u32 src_w, src_h; + + /* Offset to start scanning out from the start of the plane's + * BO. +@@ -186,11 +188,6 @@ static int vc4_plane_setup_clipping_and_ + + vc4_state->offset = fb->offsets[0]; + +- vc4_state->crtc_x = state->crtc_x; +- vc4_state->crtc_y = state->crtc_y; +- vc4_state->crtc_w = state->crtc_w; +- vc4_state->crtc_h = state->crtc_h; +- + if (state->crtc_w << 16 != state->src_w || + state->crtc_h << 16 != state->src_h) { + /* We don't support scaling yet, which involves +@@ -201,17 +198,25 @@ static int vc4_plane_setup_clipping_and_ + return -EINVAL; + } + ++ vc4_state->src_w = state->src_w >> 16; ++ vc4_state->src_h = state->src_h >> 16; ++ ++ vc4_state->crtc_x = state->crtc_x; ++ vc4_state->crtc_y = state->crtc_y; ++ vc4_state->crtc_w = state->crtc_w; ++ vc4_state->crtc_h = state->crtc_h; ++ + if (vc4_state->crtc_x < 0) { + vc4_state->offset += (drm_format_plane_cpp(fb->pixel_format, + 0) * + -vc4_state->crtc_x); +- vc4_state->crtc_w += vc4_state->crtc_x; ++ vc4_state->src_w += vc4_state->crtc_x; + vc4_state->crtc_x = 0; + } + + if (vc4_state->crtc_y < 0) { + vc4_state->offset += fb->pitches[0] * -vc4_state->crtc_y; +- vc4_state->crtc_h += vc4_state->crtc_y; ++ vc4_state->src_h += vc4_state->crtc_y; + vc4_state->crtc_y = 0; + } + +@@ -260,8 +265,8 @@ static int vc4_plane_mode_set(struct drm + SCALER_POS2_ALPHA_MODE_PIPELINE : + SCALER_POS2_ALPHA_MODE_FIXED, + SCALER_POS2_ALPHA_MODE) | +- VC4_SET_FIELD(vc4_state->crtc_w, SCALER_POS2_WIDTH) | +- VC4_SET_FIELD(vc4_state->crtc_h, SCALER_POS2_HEIGHT)); ++ VC4_SET_FIELD(vc4_state->src_w, SCALER_POS2_WIDTH) | ++ VC4_SET_FIELD(vc4_state->src_h, SCALER_POS2_HEIGHT)); + + /* Position Word 3: Context. Written by the HVS. */ + vc4_dlist_write(vc4_state, 0xc0c0c0c0); |