From: Alexander Graf <agraf@csgraf.de>
Date: Thu, 9 Jun 2022 22:59:19 +0000 (+0200)
Subject: efi_loader: GOP: Add damage notification on BLT
X-Git-Tag: v2025.07-rc2~45^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=459dbcb24837bb57750e854ad3ec6e49e11171ec;p=pandora-u-boot.git

efi_loader: GOP: Add damage notification on BLT

Now that we have a damage tracking API, let's populate damage done by
UEFI payloads when they BLT data onto the screen.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reported-by: Da Xue <da@libre.computer>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
[Alper: Add struct comment for new member]
Signed-off-by: Alper Nebi Yasak <alpernebiyasak@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Link: https://lore.kernel.org/u-boot/20230821135111.3558478-10-alpernebiyasak@gmail.com/
---

diff --git a/lib/efi_loader/efi_gop.c b/lib/efi_loader/efi_gop.c
index 4593975be5a..3abb47d610e 100644
--- a/lib/efi_loader/efi_gop.c
+++ b/lib/efi_loader/efi_gop.c
@@ -26,6 +26,7 @@ static const efi_guid_t efi_gop_guid = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID;
  * @ops:	graphical output protocol interface
  * @info:	graphical output mode information
  * @mode:	graphical output mode
+ * @vdev:	backing video device
  * @bpix:	bits per pixel
  * @fb:		frame buffer
  */
@@ -34,6 +35,7 @@ struct efi_gop_obj {
 	struct efi_gop ops;
 	struct efi_gop_mode_info info;
 	struct efi_gop_mode mode;
+	struct udevice *vdev;
 	/* Fields we only have access to during init */
 	u32 bpix;
 	void *fb;
@@ -122,6 +124,7 @@ static __always_inline efi_status_t gop_blt_int(struct efi_gop *this,
 	u32 *fb32 = gopobj->fb;
 	u16 *fb16 = gopobj->fb;
 	struct efi_gop_pixel *buffer = __builtin_assume_aligned(bufferp, 4);
+	bool blt_to_video = (operation != EFI_BLT_VIDEO_TO_BLT_BUFFER);
 
 	if (delta) {
 		/* Check for 4 byte alignment */
@@ -245,6 +248,9 @@ static __always_inline efi_status_t gop_blt_int(struct efi_gop *this,
 		dlineoff += dwidth;
 	}
 
+	if (blt_to_video)
+		video_damage(gopobj->vdev, dx, dy, width, height);
+
 	return EFI_SUCCESS;
 }
 
@@ -551,6 +557,7 @@ efi_status_t efi_gop_register(void)
 	gopobj->info.pixels_per_scanline = col;
 	gopobj->bpix = bpix;
 	gopobj->fb = map_sysmem(fb_base, fb_size);
+	gopobj->vdev = vdev;
 
 	return EFI_SUCCESS;
 }