From: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>
To: u-boot@lists.denx.de
Subject: [patch v3 4/9] ockchip: video: vop: Reserve efi fb memory
Date: Fri, 20 Nov 2020 14:24:25 +0100 [thread overview]
Message-ID: <20201120132823.799855386@rtp-net.org> (raw)
In-Reply-To: 20201120132421.500365403@rtp-net.org
When booting with EFI and graphics, the memory used for framebuffer
has to be reserved, otherwise it may leads to kernel memory
overwrite.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Index: u-boot/drivers/video/rockchip/rk_vop.c
===================================================================
--- u-boot.orig/drivers/video/rockchip/rk_vop.c
+++ u-boot/drivers/video/rockchip/rk_vop.c
@@ -20,6 +20,8 @@
#include <asm/arch-rockchip/vop_rk3288.h>
#include <dm/device-internal.h>
#include <dm/uclass-internal.h>
+#include <efi.h>
+#include <efi_loader.h>
#include <linux/bitops.h>
#include <linux/err.h>
#include <power/regulator.h>
@@ -394,6 +396,13 @@ int rk_vop_probe(struct udevice *dev)
if (!(gd->flags & GD_FLG_RELOC))
return 0;
+ plat->base = gd->bd->bi_dram[0].start + gd->bd->bi_dram[0].size - plat->size;
+
+#if defined(CONFIG_EFI_LOADER)
+ debug("Adding to EFI map %d @ %lx\n", plat->size, plat->base);
+ efi_add_memory_map(plat->base, plat->size, EFI_RESERVED_MEMORY_TYPE);
+#endif
+
priv->regs = (struct rk3288_vop *)dev_read_addr(dev);
/*
next prev parent reply other threads:[~2020-11-20 13:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-20 13:24 [patch v3 0/9] rk3399 (Pinebook pro) EDP support Arnaud Patard
2020-11-20 13:24 ` [patch v3 1/9] rockchip: video: vop: Use endpoint compatible string to find VOP mode Arnaud Patard
2020-11-20 13:24 ` [patch v3 2/9] rockchip: video: edp: Add rk3399 support Arnaud Patard
2020-11-20 13:24 ` [patch v3 3/9] ockchip: video: edp: Change interrupt polarity configuration Arnaud Patard
2021-01-21 13:08 ` Kever Yang
2020-11-20 13:24 ` Arnaud Patard [this message]
2021-01-21 13:06 ` [patch v3 4/9] ockchip: video: vop: Reserve efi fb memory Kever Yang
2020-11-20 13:24 ` [patch v3 5/9] rockchip: Pinebook Pro: Enable edp Arnaud Patard
2020-11-20 13:24 ` [patch v3 6/9] rockchip: pwm: Fix default polarity Arnaud Patard
2020-11-20 13:24 ` [patch v3 7/9] rockchip: video: vop: Fix format of fbbase in debug string Arnaud Patard
2021-01-21 12:52 ` Kever Yang
2020-11-20 13:24 ` [patch v3 8/9] rockchip: video: edp: Add missing reset support Arnaud Patard
2020-11-20 13:24 ` [patch v3 9/9] rockchip: videp: vop: Add " Arnaud Patard
2021-01-21 12:50 ` Kever Yang
2021-01-25 15:04 ` [patch v3 0/9] rk3399 (Pinebook pro) EDP support Peter Robinson
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