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From: Thomas Zimmermann <tzimmermann@suse.de>
To: daniel@ffwll.ch, airlied@gmail.com, deller@gmx.de, javierm@redhat.com
Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org,
	intel-gfx@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
	linux-arm-kernel@lists.infradead.org,
	linux-hyperv@vger.kernel.org,
	Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH 17/18] fbdev/vga16fb: Do not use struct fb_info.apertures
Date: Mon, 19 Dec 2022 17:05:15 +0100	[thread overview]
Message-ID: <20221219160516.23436-18-tzimmermann@suse.de> (raw)
In-Reply-To: <20221219160516.23436-1-tzimmermann@suse.de>

Acquire ownership of the firmware scanout buffer by calling Linux'
aperture helpers. Remove the use of struct fb_info.apertures and do
not set FBINFO_MISC_FIRMWARE; both of which previously configured
buffer ownership.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
---
 drivers/video/fbdev/vga16fb.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/video/fbdev/vga16fb.c b/drivers/video/fbdev/vga16fb.c
index af47f8217095..1a8ffdb2be26 100644
--- a/drivers/video/fbdev/vga16fb.c
+++ b/drivers/video/fbdev/vga16fb.c
@@ -10,6 +10,7 @@
  * archive for more details.
  */
 
+#include <linux/aperture.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -1324,11 +1325,6 @@ static int vga16fb_probe(struct platform_device *dev)
 		ret = -ENOMEM;
 		goto err_fb_alloc;
 	}
-	info->apertures = alloc_apertures(1);
-	if (!info->apertures) {
-		ret = -ENOMEM;
-		goto err_ioremap;
-	}
 
 	/* XXX share VGA_FB_PHYS_BASE and I/O region with vgacon and others */
 	info->screen_base = (void __iomem *)VGA_MAP_MEM(VGA_FB_PHYS_BASE, 0);
@@ -1363,8 +1359,7 @@ static int vga16fb_probe(struct platform_device *dev)
 	info->fix = vga16fb_fix;
 	/* supports rectangles with widths of multiples of 8 */
 	info->pixmap.blit_x = 1 << 7 | 1 << 15 | 1 << 23 | 1 << 31;
-	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE |
-		FBINFO_HWACCEL_YPAN;
+	info->flags = FBINFO_FLAG_DEFAULT | FBINFO_HWACCEL_YPAN;
 
 	i = (info->var.bits_per_pixel == 8) ? 256 : 16;
 	ret = fb_alloc_cmap(&info->cmap, i, 0);
@@ -1382,9 +1377,9 @@ static int vga16fb_probe(struct platform_device *dev)
 
 	vga16fb_update_fix(info);
 
-	info->apertures->ranges[0].base = VGA_FB_PHYS_BASE;
-	info->apertures->ranges[0].size = VGA_FB_PHYS_SIZE;
-
+	ret = devm_aperture_acquire_for_platform_device(dev, VGA_FB_PHYS_BASE, VGA_FB_PHYS_SIZE);
+	if (ret)
+		goto err_check_var;
 	if (register_framebuffer(info) < 0) {
 		printk(KERN_ERR "vga16fb: unable to register framebuffer\n");
 		ret = -EINVAL;
-- 
2.39.0


  parent reply	other threads:[~2022-12-19 16:05 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-19 16:04 [PATCH 00/18] drm,fbdev: Remove apertures structure and FBINFO_MISC_FIRMWARE Thomas Zimmermann
2022-12-19 16:04 ` [PATCH 01/18] fbcon: Remove trailing whitespaces Thomas Zimmermann
2022-12-20  9:10   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 02/18] Revert "fbcon: don't lose the console font across generic->chip driver switch" Thomas Zimmermann
2022-12-20  9:17   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 03/18] drm/gma500: Do not set struct fb_info.apertures Thomas Zimmermann
2022-12-20  9:18   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 04/18] drm/i915: " Thomas Zimmermann
2022-12-20  9:19   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 05/18] drm/radeon: " Thomas Zimmermann
2022-12-20  9:19   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 06/18] drm/fb-helper: Do not allocate unused apertures structure Thomas Zimmermann
2022-12-20  9:22   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 07/18] fbdev/clps711x-fb: Do not set struct fb_info.apertures Thomas Zimmermann
2022-12-20  9:24   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 08/18] fbdev/hyperv-fb: " Thomas Zimmermann
2022-12-20  9:24   ` Javier Martinez Canillas
2022-12-29 15:57   ` Michael Kelley (LINUX)
2022-12-19 16:05 ` [PATCH 09/18] vfio-mdev/mdpy-fb: " Thomas Zimmermann
2022-12-20  9:32   ` Javier Martinez Canillas
2023-01-03 13:54     ` Thomas Zimmermann
2022-12-19 16:05 ` [PATCH 10/18] fbdev/efifb: Add struct efifb_par for driver data Thomas Zimmermann
2022-12-20  9:33   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 11/18] fbdev/efifb: Do not use struct fb_info.apertures Thomas Zimmermann
2022-12-20  9:35   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 12/18] fbdev/offb: Allocate struct offb_par with framebuffer_alloc() Thomas Zimmermann
2022-12-20  9:37   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 13/18] fbdev/offb: Do not use struct fb_info.apertures Thomas Zimmermann
2022-12-20  9:38   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 14/18] fbdev/simplefb: " Thomas Zimmermann
2022-12-20  9:40   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 15/18] fbdev/vesafb: Remove trailing whitespaces Thomas Zimmermann
2022-12-20  9:40   ` Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 16/18] fbdev/vesafb: Do not use struct fb_info.apertures Thomas Zimmermann
2022-12-20  9:43   ` Javier Martinez Canillas
2022-12-19 16:05 ` Thomas Zimmermann [this message]
2022-12-20  9:44   ` [PATCH 17/18] fbdev/vga16fb: " Javier Martinez Canillas
2022-12-19 16:05 ` [PATCH 18/18] drm/fbdev: Remove aperture handling and FBINFO_MISC_FIRMWARE Thomas Zimmermann
2022-12-20  9:46   ` Javier Martinez Canillas

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