Commit 9054284e8846 for kernel

commit 9054284e8846b0105aad43a4e7174ca29fffbc44
Author: Helge Deller <deller@gmx.de>
Date:   Tue Apr 6 11:32:52 2021 +0200

    parisc: parisc-agp requires SBA IOMMU driver

    Add a dependency to the SBA IOMMU driver to avoid:
    ERROR: modpost: "sba_list" [drivers/char/agp/parisc-agp.ko] undefined!

    Reported-by: kernel test robot <lkp@intel.com>
    Cc: stable@vger.kernel.org
    Signed-off-by: Helge Deller <deller@gmx.de>

diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
index a086dd34f932..4f501e4842ab 100644
--- a/drivers/char/agp/Kconfig
+++ b/drivers/char/agp/Kconfig
@@ -125,7 +125,7 @@ config AGP_HP_ZX1

 config AGP_PARISC
 	tristate "HP Quicksilver AGP support"
-	depends on AGP && PARISC && 64BIT
+	depends on AGP && PARISC && 64BIT && IOMMU_SBA
 	help
 	  This option gives you AGP GART support for the HP Quicksilver
 	  AGP bus adapter on HP PA-RISC machines (Ok, just on the C8000