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69 lines
2.2 KiB
Diff
69 lines
2.2 KiB
Diff
From a8af2085e26bcefad8fb65e2b44d12777a84e219 Mon Sep 17 00:00:00 2001
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From: Boris Brezillon <boris.brezillon@bootlin.com>
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Date: Fri, 7 Dec 2018 09:36:05 +0100
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Subject: [PATCH] drm/vc4: Fix negative X/Y positioning on SAND planes
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Commit 8e75d582db02bcb171d65ec71eecbd3072a5fd3a upstream.
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Commit 3e407417b192 ("drm/vc4: Fix X/Y positioning of planes using
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T_TILES modifier") fixed the problem with T_TILES format, but left
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things in a non-working state for SAND formats. Address that now.
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Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
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Reviewed-by: Eric Anholt <eric@anholt.net>
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Link: https://patchwork.freedesktop.org/patch/msgid/20181207083606.15449-1-boris.brezillon@bootlin.com
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---
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drivers/gpu/drm/vc4/vc4_plane.c | 21 +++++++++++++++++++++
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1 file changed, 21 insertions(+)
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--- a/drivers/gpu/drm/vc4/vc4_plane.c
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+++ b/drivers/gpu/drm/vc4/vc4_plane.c
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@@ -684,6 +684,7 @@ static int vc4_plane_mode_set(struct drm
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case DRM_FORMAT_MOD_BROADCOM_SAND128:
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case DRM_FORMAT_MOD_BROADCOM_SAND256: {
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uint32_t param = fourcc_mod_broadcom_param(fb->modifier);
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+ u32 tile_w, tile, x_off, pix_per_tile;
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/* Column-based NV12 or RGBA.
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*/
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@@ -703,12 +704,15 @@ static int vc4_plane_mode_set(struct drm
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switch (base_format_mod) {
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case DRM_FORMAT_MOD_BROADCOM_SAND64:
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tiling = SCALER_CTL0_TILING_64B;
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+ tile_w = 64;
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break;
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case DRM_FORMAT_MOD_BROADCOM_SAND128:
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tiling = SCALER_CTL0_TILING_128B;
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+ tile_w = 128;
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break;
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case DRM_FORMAT_MOD_BROADCOM_SAND256:
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tiling = SCALER_CTL0_TILING_256B_OR_T;
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+ tile_w = 256;
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break;
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default:
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break;
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@@ -719,6 +723,23 @@ static int vc4_plane_mode_set(struct drm
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return -EINVAL;
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}
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+ pix_per_tile = tile_w / fb->format->cpp[0];
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+ tile = vc4_state->src_x / pix_per_tile;
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+ x_off = vc4_state->src_x % pix_per_tile;
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+
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+ /* Adjust the base pointer to the first pixel to be scanned
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+ * out.
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+ */
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+ for (i = 0; i < num_planes; i++) {
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+ vc4_state->offsets[i] += param * tile_w * tile;
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+ vc4_state->offsets[i] += vc4_state->src_y /
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+ (i ? v_subsample : 1) *
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+ tile_w;
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+ vc4_state->offsets[i] += x_off /
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+ (i ? h_subsample : 1) *
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+ fb->format->cpp[i];
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+ }
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+
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pitch0 = VC4_SET_FIELD(param, SCALER_TILE_HEIGHT);
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break;
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}
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