From 5b3eb6063ff8a8ca9e1fc0efda172c7216386a3a Mon Sep 17 00:00:00 2001
From: Jaehyun Chung <jaehyun.chung@amd.com>
Date: Wed, 8 Apr 2020 15:02:58 -0400
Subject: drm/amd/display: Add HW rotation cursor changes to dcn10
Git-commit: e9e7123a6665cddffaf053a0a26e26743ba5a26d
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

[Why]
HW rotation was enabled in DAL3 but hubp cursor calculations for HW roation
were only added to dcn20.

[How]
Add hubp cursor position calculation changes to dcn10.

Signed-off-by: Jaehyun Chung <jaehyun.chung@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 .../gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c  | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
index 31b64733d693..319366ebb44f 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hubp.c
@@ -1139,6 +1139,8 @@ void hubp1_cursor_set_position(
 	int src_y_offset = pos->y - pos->y_hotspot - param->viewport.y;
 	int x_hotspot = pos->x_hotspot;
 	int y_hotspot = pos->y_hotspot;
+	int cursor_height = (int)hubp->curs_attr.height;
+	int cursor_width = (int)hubp->curs_attr.width;
 	uint32_t dst_x_offset;
 	uint32_t cur_en = pos->enable ? 1 : 0;
 
@@ -1152,10 +1154,16 @@ void hubp1_cursor_set_position(
 	if (hubp->curs_attr.address.quad_part == 0)
 		return;
 
+	// Rotated cursor width/height and hotspots tweaks for offset calculation
 	if (param->rotation == ROTATION_ANGLE_90 || param->rotation == ROTATION_ANGLE_270) {
-		src_x_offset = pos->y - pos->y_hotspot - param->viewport.x;
-		y_hotspot = pos->x_hotspot;
-		x_hotspot = pos->y_hotspot;
+		swap(cursor_height, cursor_width);
+		if (param->rotation == ROTATION_ANGLE_90) {
+			src_x_offset = pos->x - pos->y_hotspot - param->viewport.x;
+			src_y_offset = pos->y - pos->x_hotspot - param->viewport.y;
+		}
+	} else if (param->rotation == ROTATION_ANGLE_180) {
+		src_x_offset = pos->x - param->viewport.x;
+		src_y_offset = pos->y - param->viewport.y;
 	}
 
 	if (param->mirror) {
@@ -1177,13 +1185,13 @@ void hubp1_cursor_set_position(
 	if (src_x_offset >= (int)param->viewport.width)
 		cur_en = 0;  /* not visible beyond right edge*/
 
-	if (src_x_offset + (int)hubp->curs_attr.width <= 0)
+	if (src_x_offset + cursor_width <= 0)
 		cur_en = 0;  /* not visible beyond left edge*/
 
 	if (src_y_offset >= (int)param->viewport.height)
 		cur_en = 0;  /* not visible beyond bottom edge*/
 
-	if (src_y_offset + (int)hubp->curs_attr.height <= 0)
+	if (src_y_offset + cursor_height <= 0)
 		cur_en = 0;  /* not visible beyond top edge*/
 
 	if (cur_en && REG_READ(CURSOR_SURFACE_ADDRESS) == 0)
-- 
2.28.0