From 5e4bbe92bc6474460f7cd8037698a55ded0bac14 Mon Sep 17 00:00:00 2001
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: Tue, 3 Aug 2021 14:59:21 +0200
Subject: drm/hyperv: Use offset-adjusted shadow-plane mappings
Git-commit: 70594e8bed7f1fc53c52ee639ce60c4ba4dd2ecc
Patch-mainline: v5.15-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

For framebuffers with non-zero offset fields, shadow-plane helpers
provide a pointer to the first byte of the contained data. Use it in
hyperv.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-5-tzimmermann@suse.de
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
index 3aaee4730ec6..6dd4717d3e1e 100644
--- a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
+++ b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c
@@ -105,7 +105,7 @@ static void hyperv_pipe_enable(struct drm_simple_display_pipe *pipe,
 				crtc_state->mode.hdisplay,
 				crtc_state->mode.vdisplay,
 				plane_state->fb->pitches[0]);
-	hyperv_blit_to_vram_fullscreen(plane_state->fb, &shadow_plane_state->map[0]);
+	hyperv_blit_to_vram_fullscreen(plane_state->fb, &shadow_plane_state->data[0]);
 }
 
 static int hyperv_pipe_check(struct drm_simple_display_pipe *pipe,
@@ -133,7 +133,7 @@ static void hyperv_pipe_update(struct drm_simple_display_pipe *pipe,
 	struct drm_rect rect;
 
 	if (drm_atomic_helper_damage_merged(old_state, state, &rect)) {
-		hyperv_blit_to_vram_rect(state->fb, &shadow_plane_state->map[0], &rect);
+		hyperv_blit_to_vram_rect(state->fb, &shadow_plane_state->data[0], &rect);
 		hyperv_update_dirt(hv->hdev, &rect);
 	}
 }
-- 
2.38.1