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linux/drivers/misc/cxl/Makefile

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cxl: use -Werror only with CONFIG_PPC_WERROR Some developers really like to have -Werror enabled for their code, as it helps to ensure warning free code. Others don't want -Werror, as it (for example) can cause problems when newer (or older) compilers have different sets of warnings, or new warnings can appear just when turning up the warning level (e.g., make W=1 or W=2). Thus, it seems prudent to have the use of -Werror be configurable. It so happens that cxl is only built on PowerPC, and PowerPC already has a nice set of Kconfig options for this, under CONFIG_PPC_WERROR. So let's use that, and the world is a happy place again! (Note that PPC_WERROR defaults to =y, so the common case compile should still be enforcing -Werror.) Fixes: d3d73f4b38a8 ("cxl: Compile with -Werror") Signed-off-by: Brian Norris <computersforpeace@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-01-09 02:30:10 +08:00
ccflags-y := $(call cc-disable-warning, unused-const-variable)
ccflags-$(CONFIG_PPC_WERROR) += -Werror
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 11:18:17 +08:00
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 14:07:15 +08:00
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 14:07:18 +08:00
cxl-y += vphb.o api.o
cxl: Add guest-specific code The new of.c file contains code to parse the device tree to find out about cxl adapters and AFUs. guest.c implements the guest-specific callbacks for the backend API. The process element ID is not known until the context is attached, so we have to separate the context ID assigned by the cxl driver from the process element ID visible to the user applications. In bare-metal, the 2 IDs match. Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com> Acked-by: Ian Munsie <imunsie@au1.ibm.com> [mpe: Fix SMP=n build, fix PSERIES=n build, minor whitespace fixes] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2016-03-04 19:26:36 +08:00
cxl-$(CONFIG_PPC_PSERIES) += guest.o of.o hcalls.o
cxl: Add driver to Kbuild and Makefiles Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2014-10-08 16:55:04 +08:00
obj-$(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 16:55:01 +08:00
obj-$(CONFIG_CXL_BASE) += base.o
cxl: Add tracepoints This patch adds tracepoints throughout the cxl driver, which can provide insight into: - Context lifetimes - Commands sent to the PSL and AFU and their completion status - Segment and page table misses and their resolution - PSL and AFU interrupts - slbia calls from the powerpc copro_fault code These tracepoints are mostly intended to aid in debugging (particularly for new AFU designs), and may be useful standalone or in conjunction with hardware traces collected by the PSL (read out via the trace interface in debugfs) and AFUs. Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-01-09 17:34:36 +08:00
# For tracepoints to include our trace.h from tracepoint infrastructure:
CFLAGS_trace.o := -I$(src)