[U-Boot] [PATCH] video: sunxi: de2: Reserve the fb region in the EFI memory map
If compile with support for the efi loader we need to mark the pages allocated for the framebuffer as reserved so the kernel won't attempt to use them for other uses.
Signed-off-by: Emmanuel Vadot manu@freebsd.org --- drivers/video/sunxi/sunxi_de2.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c index 860187323c..563e4b583d 100644 --- a/drivers/video/sunxi/sunxi_de2.c +++ b/drivers/video/sunxi/sunxi_de2.c @@ -10,6 +10,7 @@ #include <display.h> #include <dm.h> #include <edid.h> +#include <efi_loader.h> #include <fdtdec.h> #include <fdt_support.h> #include <video.h> @@ -222,6 +223,13 @@ static int sunxi_de2_init(struct udevice *dev, ulong fbbase, uc_priv->bpix = l2bpp; debug("fb=%lx, size=%d %d\n", fbbase, uc_priv->xsize, uc_priv->ysize);
+#ifdef CONFIG_EFI_LOADER + efi_add_memory_map(fbbase, + ALIGN(timing.hactive.typ * timing.vactive.typ * + (1 << l2bpp) / 8, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT, + EFI_RESERVED_MEMORY_TYPE, false); +#endif + return 0; }
On 05/04/2018 10:26 AM, Emmanuel Vadot wrote:
If compile with support for the efi loader we need to mark the pages allocated for the framebuffer as reserved so the kernel won't attempt to use them for other uses.
Signed-off-by: Emmanuel Vadot manu@freebsd.org
drivers/video/sunxi/sunxi_de2.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c index 860187323c..563e4b583d 100644 --- a/drivers/video/sunxi/sunxi_de2.c +++ b/drivers/video/sunxi/sunxi_de2.c @@ -10,6 +10,7 @@ #include <display.h> #include <dm.h> #include <edid.h> +#include <efi_loader.h> #include <fdtdec.h> #include <fdt_support.h> #include <video.h> @@ -222,6 +223,13 @@ static int sunxi_de2_init(struct udevice *dev, ulong fbbase, uc_priv->bpix = l2bpp; debug("fb=%lx, size=%d %d\n", fbbase, uc_priv->xsize, uc_priv->ysize);
+#ifdef CONFIG_EFI_LOADER
- efi_add_memory_map(fbbase,
ALIGN(timing.hactive.typ * timing.vactive.typ *(1 << l2bpp) / 8, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,EFI_RESERVED_MEMORY_TYPE, false);
Should fbbase not be EFI_PAGE_SIZE (4k) aligned you would have to round it down.
I wonder why below we use macro VNBYTES() but not here.
Otherwise
Acked-by: Heinrich Schuchardt xypron.glpk@gmx.de
+#endif
- return 0;
}
participants (2)
-
Emmanuel Vadot -
Heinrich Schuchardt