kernel.git/arch/x86/include/asm/uv, branch linux-4.7.y

x86/platform/UV: Remove Obsolete GRU MMR address translation

2016-05-04T06:48:51Z

Use no-op messages in place of cross-partition interrupts when nacking a put message in the GRU. This allows us to remove MMR's as a destination from the GRU driver. Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Dimitri Sivanich Signed-off-by: Mike Travis Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215406.012228480@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Update physical address conversions for UV4

2016-05-04T06:48:50Z

This patch builds support for the new conversions of physical addresses to and from sockets, pnodes and nodes in UV4. It is designed to be as efficient as possible as lookups are done inside an interrupt context in some cases. It will be further optimized when physical hardware is available to measure execution time. Tested-by: Dimitri Sivanich Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215405.841051741@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Build GAM reference tables

2016-05-04T06:48:50Z

An aspect of the UV4 system architecture changes involve changing the way sockets, nodes, and pnodes are translated between one another. Decode the information from the BIOS provided EFI system table to build the needed conversion tables. Tested-by: Dimitri Sivanich Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Dimitri Sivanich Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215405.673495324@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Support UV4 socket address changes

2016-05-04T06:48:50Z

With the UV4 system architecture addressing changes, BIOS now provides this information via an EFI system table. This is the initial decoding of that system table. It also collects the sizing information for later allocation of dynamic conversion tables. Tested-by: Dimitri Sivanich Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Dimitri Sivanich Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215405.503022681@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Add obtaining GAM Range Table from UV BIOS

2016-05-04T06:48:50Z

UV4 uses a GAM (globally addressed memory) architecture that supports variable sized memory per node. This replaces the old "M" value (number of address bits per node) with a range table for conversions between addresses and physical node (pnode) id's. This table is obtained from UV BIOS via the EFI UVsystab table. Support for older EFI UVsystab tables is maintained. Tested-by: Dimitri Sivanich Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215405.329827545@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Fold blade info into per node hub info structs

2016-05-04T06:48:49Z

Migrate references from the blade info structs to the per node hub info structs. This phases out the allocation of the list of per blade info structs on node 0, in favor of a per node hub info struct allocated on the node's local memory. There are also some minor cosemetic changes in the comments and whitespace to clean things up a bit. Tested-by: Dimitri Sivanich Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215404.987204515@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Allocate common per node hub info structs on local node

2016-05-04T06:48:49Z

Allocate and setup per node hub info structs. CPU 0/Node 0 hub info is statically allocated to be accessible early in system startup. The remaining hub info structs are allocated on the node's local memory, and shared among the CPU's on that node. This leaves the small amount of info unique to each CPU in the per CPU info struct. Memory is saved by combining the common per node info fields to common node local structs. In addtion, since the info is read only only after setup, it should stay in the L3 cache of the local processor socket. This should therefore improve the cache hit rate when a group of cpus on a node are all interrupted for a common task. Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Dimitri Sivanich Reviewed-by: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215404.813051625@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Move blade local processor ID to the per cpu info struct

2016-05-04T06:48:49Z

Move references to blade local processor ID to the new per cpu info structs. Create an access function that makes this move, and other potential moves opaque to callers of this function. Define a flag that indicates to callers in external GPL modules that this function replaces any local definition. This allows calling source code to be built for both pre-UV4 kernels as well as post-UV4 kernels. Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Dimitri Sivanich Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215404.644173122@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Move scir info to the per cpu info struct

2016-05-04T06:48:49Z

Change the references to the SCIR fields to the new per cpu info structs. Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Dimitri Sivanich Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215404.452538234@asylum.americas.sgi.com Signed-off-by: Ingo Molnar

x86/platform/UV: Create per cpu info structs to replace per hub info structs

2016-05-04T06:48:48Z

The major portion of the hub info is common to all cpus on that hub. This is step one of moving the per cpu hub info to a per node hub info struct. This patch creates the small per cpu info struct that will contain only information specific to each CPU. Tested-by: John Estabrook Tested-by: Gary Kroening Tested-by: Nathan Zimmer Signed-off-by: Mike Travis Reviewed-by: Dimitri Sivanich Cc: Andrew Banman Cc: Andrew Morton Cc: Andy Lutomirski Cc: Borislav Petkov Cc: Brian Gerst Cc: Denys Vlasenko Cc: H. Peter Anvin Cc: Len Brown Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Russ Anderson Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20160429215404.282265563@asylum.americas.sgi.com Signed-off-by: Ingo Molnar