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Commit 22d651dc authored by Michael Ellerman's avatar Michael Ellerman Committed by Benjamin Herrenschmidt
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selftests/powerpc: Import Anton's memcpy / copy_tofrom_user tests 



Turn Anton's memcpy / copy_tofrom_user test into something that can
live in tools/testing/selftests.

It requires one turd in arch/powerpc/lib/memcpy_64.S, but it's pretty
harmless IMHO.

We are sailing very close to the wind with the feature macros. We define
them to nothing, which currently means we get a few extra nops and
include the unaligned calls.

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 55672ecf

arch/powerpc/lib/memcpy_64.S

+2 −0
Original line number Diff line number Diff line
@@ -14,7 +14,9 @@ _GLOBAL(memcpy) 
BEGIN_FTR_SECTION

	std	r3,48(r1)	/* save destination pointer for return value */

FTR_SECTION_ELSE

#ifndef SELFTEST

	b	memcpy_power7

#endif

ALT_FTR_SECTION_END_IFCLR(CPU_FTR_VMX_COPY)

	PPC_MTOCRF(0x01,r5)

	cmpldi	cr1,r5,16

tools/testing/selftests/powerpc/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -13,7 +13,7 @@ CFLAGS := -Wall -O2 -flto -Wall -Werror -DGIT_VERSION='"$(GIT_VERSION)"' -I$(CUR 


export CC CFLAGS



TARGETS = pmu

TARGETS = pmu copyloops



endif

tools/testing/selftests/powerpc/copyloops/Makefile

0 → 100644
+29 −0
Original line number Diff line number Diff line 
# The loops are all 64-bit code

CFLAGS += -m64

CFLAGS += -I$(CURDIR)

CFLAGS += -D SELFTEST



# Use our CFLAGS for the implicit .S rule

ASFLAGS = $(CFLAGS)



PROGS := copyuser_64 copyuser_power7 memcpy_64 memcpy_power7

EXTRA_SOURCES := validate.c ../harness.c



all: $(PROGS)



copyuser_64:     CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_base

copyuser_power7: CPPFLAGS += -D COPY_LOOP=test___copy_tofrom_user_power7

memcpy_64:       CPPFLAGS += -D COPY_LOOP=test_memcpy

memcpy_power7:   CPPFLAGS += -D COPY_LOOP=test_memcpy_power7



$(PROGS): $(EXTRA_SOURCES)



run_tests: all

	@-for PROG in $(PROGS); do \

		./$$PROG; \

	done;



clean:

	rm -f $(PROGS) *.o



.PHONY: all run_tests clean

tools/testing/selftests/powerpc/copyloops/asm/ppc_asm.h

0 → 100644
+86 −0
Original line number Diff line number Diff line 
#include <ppc-asm.h>



#define CONFIG_ALTIVEC



#define r1	1



#define vr0     0

#define vr1     1

#define vr2     2

#define vr3     3

#define vr4     4

#define vr5     5

#define vr6     6

#define vr7     7

#define vr8     8

#define vr9     9

#define vr10    10

#define vr11    11

#define vr12    12

#define vr13    13

#define vr14    14

#define vr15    15

#define vr16    16

#define vr17    17

#define vr18    18

#define vr19    19

#define vr20    20

#define vr21    21

#define vr22    22

#define vr23    23

#define vr24    24

#define vr25    25

#define vr26    26

#define vr27    27

#define vr28    28

#define vr29    29

#define vr30    30

#define vr31    31



#define R14 r14

#define R15 r15

#define R16 r16

#define R17 r17

#define R18 r18

#define R19 r19

#define R20 r20

#define R21 r21

#define R22 r22



#define STACKFRAMESIZE	256

#define STK_PARAM(i)	(48 + ((i)-3)*8)

#define STK_REG(i)	(112 + ((i)-14)*8)



#define _GLOBAL(A) FUNC_START(test_ ## A)



#define PPC_MTOCRF(A, B)	mtocrf A, B



FUNC_START(enter_vmx_usercopy)

	li	r3,1

	blr



FUNC_START(exit_vmx_usercopy)

	li	r3,0

	blr



FUNC_START(enter_vmx_copy)

	li	r3,1

	blr



FUNC_START(exit_vmx_copy)

	blr



FUNC_START(memcpy_power7)

	blr



FUNC_START(__copy_tofrom_user_power7)

	blr



FUNC_START(__copy_tofrom_user_base)

	blr



#define BEGIN_FTR_SECTION

#define FTR_SECTION_ELSE

#define ALT_FTR_SECTION_END_IFCLR(x)

#define ALT_FTR_SECTION_END(x, y)

#define END_FTR_SECTION_IFCLR(x)

tools/testing/selftests/powerpc/copyloops/asm/processor.h

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+0 −0

Empty file added.