From ce56f495618cf32612e7aa00339427d0d5643468 Mon Sep 17 00:00:00 2001
From: Faith Ekstrand <faith.ekstrand@collabora.com>
Date: Tue, 24 Mar 2026 14:24:07 -0400
Subject: [PATCH] pan/buffer: Add the offset to the size for buffer textures

In the attribute model, the size is for the attribute binding and the
offset is an offset into that range.  If we're going to use that to
offset the buffer itself, we need to increase the size accordingly.

Fixes: a21ee564e205 ("pan/bi: Make texel buffers use Attribute Buffers")
Reviewed-by: Lars-Ivar Hesselberg Simonsen <lars-ivar.simonsen@arm.com>
Reviewed-by: Christoph Pillmayer <christoph.pillmayer@arm.com>
Reviewed-by: Lorenzo Rossi <lorenzo.rossi@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40576>
---
 src/panfrost/lib/pan_buffer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/panfrost/lib/pan_buffer.c b/src/panfrost/lib/pan_buffer.c
index cea37fc8088..70d187569ff 100644
--- a/src/panfrost/lib/pan_buffer.c
+++ b/src/panfrost/lib/pan_buffer.c
@@ -53,7 +53,7 @@ GENX(pan_buffer_texture_emit)(const struct pan_buffer_view *bview,
       cfg.type = MALI_ATTRIBUTE_TYPE_1D;
       cfg.pointer = bview->base;
       cfg.stride = stride;
-      cfg.size = bview->width_el * stride;
+      cfg.size = bview->width_el * stride + bview->offset;
    }
 
    pan_pack(out_attrib, ATTRIBUTE, cfg) {