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evie/android_kernel_oneplus_msm8998

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cxl: fix build for GCC 4.6.x [ Upstream commit aa09545589ceeff884421d8eb38d04963190afbe ] GCC 4.6.3 does not support -Wno-unused-const-variable. Instead, use the kbuild infrastructure that checks if this options exists. Fixes: 2cd55c68c0a4 ("cxl: Fix build failure due to -Wunused-variable behaviour change") Suggested-by: Michal Marek <mmarek@suse.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2016-01-08 10:30:09 -08:00			`ccflags-y := -Werror $(call cc-disable-warning, unused-const-variable)`
cxl: Compile with -Werror It's a good idea, and it brings us in line with the rest of arch/powerpc. Signed-off-by: Daniel Axtens <dja@axtens.net> Acked-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-08-07 13:18:17 +10:00
cxl: Cleanup Makefile Cleanup Makefile by fixing line wrapping. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-05-27 16:07:15 +10:00			`cxl-y += main.o file.o irq.o fault.o native.o`
			`cxl-y += context.o sysfs.o debugfs.o pci.o trace.o`
cxl: Add AFU virtual PHB and kernel API This patch does two things. Firstly it presents the Accelerator Function Unit (AFUs) behind the POWER Service Layer (PSL) as PCI devices on a virtual PCI Host Bridge (vPHB). This in in addition to the PSL being a PCI device itself. As part of the Coherent Accelerator Interface Architecture (CAIA) AFUs can provide an AFU configuration. This AFU configuration recored is architected to be the same as a PCI config space. This patch sets discovers the AFU configuration records, provides AFU config space read/write functions to these configuration records. It then enumerates the PCI bus. It also hooks in PCI ops where appropriate. It also destroys the vPHB when the physical card is removed. Secondly, it add an in kernel API for AFU to use CXL. AFUs must present a driver that firstly binds as a PCI device. This PCI device can then be using to do CXL specific operations (that can't sit in the PCI ops) using this API. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-05-27 16:07:18 +10:00			`cxl-y += vphb.o api.o`
cxl: Add driver to Kbuild and Makefiles Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2014-10-08 19:55:04 +11:00			`obj-$(CONFIG_CXL) += cxl.o`
cxl: Add base builtin support This adds the base cxl support that cannot be built as a module. Specifically it adds the cxl callbacks that are called from the core powerpc mm code which must always exist irrespective of if the cxl module is loaded or not. This is similar to how cell works with CONFIG_SPU_BASE. This adds a cxl_slbia() call (similar to spu_flush_all_slbs()) which checks if the cxl module is loaded and in use, returning immediately if it is not. If it is in use it calls into the cxl SLB invalidation code. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2014-10-08 19:55:01 +11:00			`obj-$(CONFIG_CXL_BASE) += base.o`
cxl: Add tracepoints This patch adds tracepoints throughout the cxl driver, which can provide insight into: - Context lifetimes - Commands sent to the PSL and AFU and their completion status - Segment and page table misses and their resolution - PSL and AFU interrupts - slbia calls from the powerpc copro_fault code These tracepoints are mostly intended to aid in debugging (particularly for new AFU designs), and may be useful standalone or in conjunction with hardware traces collected by the PSL (read out via the trace interface in debugfs) and AFUs. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 2015-01-09 20:34:36 +11:00
			`# For tracepoints to include our trace.h from tracepoint infrastructure:`
			`CFLAGS_trace.o := -I$(src)`