wireguard-linux/arch/powerpc/include/asm/firmware.h, branch jd/unified-crypt-queue

powerpc/pseries/iommu: Separate FW_FEATURE_MULTITCE to put/stuff features

2020-01-06T05:25:30Z

H_PUT_TCE_INDIRECT allows packing up to 512 TCE updates into a single hypercall; H_STUFF_TCE can clear lots in a single hypercall too. However, unlike H_STUFF_TCE (which writes the same TCE to all entries), H_PUT_TCE_INDIRECT uses a 4K page with new TCEs. In a secure VM environment this means sharing a secure VM page with a hypervisor which we would rather avoid. This splits the FW_FEATURE_MULTITCE feature into FW_FEATURE_PUT_TCE_IND and FW_FEATURE_STUFF_TCE. "hcall-multi-tce" in the "/rtas/ibm,hypertas-functions" device tree property sets both; the "multitce=off" kernel command line parameter disables both. This should not cause behavioural change. Signed-off-by: Alexey Kardashevskiy Reviewed-by: Thiago Jung Bauermann Tested-by: Thiago Jung Bauermann Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20191216041924.42318-4-aik@ozlabs.ru

powerpc/powernv: Introduce FW_FEATURE_ULTRAVISOR

2019-08-29T23:40:15Z

In PEF enabled systems, some of the resources which were previously hypervisor privileged are now ultravisor privileged and controlled by the ultravisor firmware. This adds FW_FEATURE_ULTRAVISOR to indicate if PEF is enabled. The host kernel can use FW_FEATURE_ULTRAVISOR, for instance, to skip accessing resources (e.g. PTCR and LDBAR) in case PEF is enabled. Signed-off-by: Claudio Carvalho [ andmike: Device node name to "ibm,ultravisor" ] Signed-off-by: Michael Anderson Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20190822034838.27876-4-cclaudio@linux.ibm.com

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32Z

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc/pseries: PAPR persistent memory support

2018-10-18T13:56:17Z

This patch implements support for discovering storage class memory devices at boot and for handling hotplug of new regions via RTAS hotplug events. Signed-off-by: Oliver O'Halloran [mpe: Fix CONFIG_MEMORY_HOTPLUG=n build] Signed-off-by: Michael Ellerman

powerpc/pseries/mm: Introducing FW_FEATURE_BLOCK_REMOVE

2018-09-17T11:17:25Z

This feature tells if the hcall H_BLOCK_REMOVE is available. Cc: "Aneesh Kumar K.V" Cc: Nicholas Piggin Cc: Michael Ellerman Cc: Paul Mackerras Cc: Benjamin Herrenschmidt Reviewed-by: Aneesh Kumar K.V Signed-off-by: Laurent Dufour Signed-off-by: Michael Ellerman

powerpc: clean inclusions of asm/feature-fixups.h

2018-07-30T12:48:17Z

files not using feature fixup don't need asm/feature-fixups.h files using feature fixup need asm/feature-fixups.h Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman

powerpc: move ASM_CONST and stringify_in_c() into asm-const.h

2018-07-30T12:48:16Z

This patch moves ASM_CONST() and stringify_in_c() into dedicated asm-const.h, then cleans all related inclusions. Signed-off-by: Christophe Leroy [mpe: asm-compat.h should include asm-const.h] Signed-off-by: Michael Ellerman

powerpc/pseries: Fix duplicate firmware feature for DRC_INFO

2018-02-22T03:32:32Z

We had a mid-air collision between two new firmware features, DRMEM_V2 and DRC_INFO, and they ended up with the same value. No one's actually reported any problems, presumably because the new firmware that supports both properties is not widely available, and the two properties tend to be enabled together. Still if we ever had one enabled but not the other, the bugs that could result are many and varied. So fix it. Fixes: 3f38000eda48 ("powerpc/firmware: Add definitions for new drc-info firmware feature") Signed-off-by: Michael Ellerman Reviewed-by: Tyrel Datwyler

powerpc/firmware: Add definitions for new drc-info firmware feature

2018-01-21T05:21:40Z

Firmware Features: Define new bit flag representing the presence of new device tree property "ibm,drc-info". The flag is used to tell the front end processor whether the Linux kernel supports the new property, and by the front end processor to tell the Linux kernel that the new property is present in the device tree. Signed-off-by: Michael Bringmann Signed-off-by: Michael Ellerman

powerpc/pseries: Enable support of ibm,dynamic-memory-v2

2018-01-16T12:26:30Z

Add required bits to the architecture vector to enable support of the ibm,dynamic-memory-v2 device tree property. Signed-off-by: Nathan Fontenot Signed-off-by: Michael Ellerman