drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: error: implicit declaration of function 'enable_kernel_altivec'

From: kernel test robot
Date: Sun May 30 2021 - 14:54:26 EST

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Hi Alex,

FYI, the error/warning still remains.

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b90e90f40b4ff23c753126008bf4713a42353af6
commit: 582e2ce5b4ece37055c6ebe58ab48a4817d30b10 drm/amdgpu/display: FP fixes for DCN3.x (v4)
date: 7 months ago
config: powerpc-randconfig-r034-20210530 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project bc6799f2f79f0ae87e9f1ebf9d25ba799fbd25a9)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install powerpc cross compiling tool for clang build
# apt-get install binutils-powerpc-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=582e2ce5b4ece37055c6ebe58ab48a4817d30b10
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 582e2ce5b4ece37055c6ebe58ab48a4817d30b10
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=powerpc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:244:2: note: expanded from macro 'HWSEQ_DCN2_REG_LIST'
SR(MPC_CRC_RESULT_C), \
^~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:247:15: note: expanded from macro 'SR'
.reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:242:25: note: expanded from macro 'BASE_INNER'
#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
^
<scratch space>:57:1: note: expanded from here
DCN_BASE__INST0_SEG3
^
drivers/gpu/drm/amd/amdgpu/../include/sienna_cichlid_ip_offset.h:373:52: note: expanded from macro 'DCN_BASE__INST0_SEG3'
#define DCN_BASE__INST0_SEG3 0x00009000
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:753:3: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
HWSEQ_DCN30_REG_LIST()
^~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:357:2: note: expanded from macro 'HWSEQ_DCN30_REG_LIST'
SR(MPC_CRC_RESULT_AR), \
^~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:247:15: note: expanded from macro 'SR'
.reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:244:19: note: expanded from macro 'BASE'
#define BASE(seg) BASE_INNER(seg)
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:242:25: note: expanded from macro 'BASE_INNER'
#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
^
<scratch space>:51:1: note: expanded from here
DCN_BASE__INST0_SEG3
^
drivers/gpu/drm/amd/amdgpu/../include/sienna_cichlid_ip_offset.h:373:52: note: expanded from macro 'DCN_BASE__INST0_SEG3'
#define DCN_BASE__INST0_SEG3 0x00009000
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:753:3: note: previous initialization is here
HWSEQ_DCN30_REG_LIST()
^~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:341:2: note: expanded from macro 'HWSEQ_DCN30_REG_LIST'
HWSEQ_DCN2_REG_LIST(),\
^~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dce/dce_hwseq.h:245:2: note: expanded from macro 'HWSEQ_DCN2_REG_LIST'
SR(MPC_CRC_RESULT_AR), \
^~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:247:15: note: expanded from macro 'SR'
.reg_name = BASE(mm ## reg_name ## _BASE_IDX) + \
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
note: (skipping 1 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all)
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:242:25: note: expanded from macro 'BASE_INNER'
#define BASE_INNER(seg) DCN_BASE__INST0_SEG ## seg
^
<scratch space>:61:1: note: expanded from here
DCN_BASE__INST0_SEG3
^
drivers/gpu/drm/amd/amdgpu/../include/sienna_cichlid_ip_offset.h:373:52: note: expanded from macro 'DCN_BASE__INST0_SEG3'
#define DCN_BASE__INST0_SEG3 0x00009000
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:875:6: warning: no previous prototype for function 'dcn30_dpp_destroy' [-Wmissing-prototypes]
void dcn30_dpp_destroy(struct dpp **dpp)
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:875:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void dcn30_dpp_destroy(struct dpp **dpp)
^
static
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:992:16: warning: no previous prototype for function 'dcn30_hubbub_create' [-Wmissing-prototypes]
struct hubbub *dcn30_hubbub_create(struct dc_context *ctx)
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:992:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
struct hubbub *dcn30_hubbub_create(struct dc_context *ctx)
^
static
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1143:24: warning: no previous prototype for function 'dcn30_stream_encoder_create' [-Wmissing-prototypes]
struct stream_encoder *dcn30_stream_encoder_create(
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1143:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
struct stream_encoder *dcn30_stream_encoder_create(
^
static
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1175:19: warning: no previous prototype for function 'dcn30_hwseq_create' [-Wmissing-prototypes]
struct dce_hwseq *dcn30_hwseq_create(
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1175:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
struct dce_hwseq *dcn30_hwseq_create(
^
static
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: note: did you mean 'enable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here
extern void enable_kernel_fp(void);
^
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1576:2: note: did you mean 'enable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here
extern void enable_kernel_fp(void);
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: note: did you mean 'disable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here
static inline void disable_kernel_fp(void)
^
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:1578:2: note: did you mean 'disable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here
static inline void disable_kernel_fp(void)
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2401:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2401:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2403:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2403:2: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2463:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2463:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2465:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2465:2: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2537:4: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2537:4: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2540:4: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2540:4: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2644:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2644:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c:2923:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
116 warnings and 20 errors generated.
--
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:26:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/inc/hw/dccg.h:29:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:32:
In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:30:
In file included from include/linux/kgdb.h:18:
In file included from include/linux/atomic.h:7:
In file included from arch/powerpc/include/asm/atomic.h:11:
In file included from arch/powerpc/include/asm/cmpxchg.h:8:
In file included from include/linux/bug.h:5:
In file included from arch/powerpc/include/asm/bug.h:109:
In file included from include/asm-generic/bug.h:20:
In file included from include/linux/kernel.h:12:
In file included from include/linux/bitops.h:29:
In file included from arch/powerpc/include/asm/bitops.h:62:
arch/powerpc/include/asm/barrier.h:49:9: warning: '__lwsync' macro redefined [-Wmacro-redefined]
#define __lwsync() __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory")
^
<built-in>:309:9: note: previous definition is here
#define __lwsync __builtin_ppc_lwsync
^
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:214:2: error: implicit declaration of function 'enable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:214:2: note: did you mean 'enable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:68:3: note: expanded from macro 'DC_FP_START'
enable_kernel_vsx(); \
^
arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here
extern void enable_kernel_fp(void);
^
>> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:214:2: error: implicit declaration of function 'enable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
DC_FP_START();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:214:2: note: did you mean 'enable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:71:3: note: expanded from macro 'DC_FP_START'
enable_kernel_altivec(); \
^
arch/powerpc/include/asm/switch_to.h:40:13: note: 'enable_kernel_fp' declared here
extern void enable_kernel_fp(void);
^
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: error: implicit declaration of function 'disable_kernel_vsx' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: note: did you mean 'disable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:79:3: note: expanded from macro 'DC_FP_END'
disable_kernel_vsx(); \
^
arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here
static inline void disable_kernel_fp(void)
^
>> drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: error: implicit declaration of function 'disable_kernel_altivec' [-Werror,-Wimplicit-function-declaration]
DC_FP_END();
^
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
drivers/gpu/drm/amd/amdgpu/../display/dc/clk_mgr/dcn30/dcn30_clk_mgr.c:216:2: note: did you mean 'disable_kernel_fp'?
drivers/gpu/drm/amd/amdgpu/../display/dc/os_types.h:82:3: note: expanded from macro 'DC_FP_END'
disable_kernel_altivec(); \
^
arch/powerpc/include/asm/switch_to.h:44:20: note: 'disable_kernel_fp' declared here
static inline void disable_kernel_fp(void)
^
1 warning and 4 errors generated.

vim +/enable_kernel_altivec +1576 drivers/gpu/drm/amd/amdgpu/../display/dc/dcn30/dcn30_resource.c

1572
1573 void dcn30_populate_dml_writeback_from_context(
1574 struct dc *dc, struct resource_context *res_ctx, display_e2e_pipe_params_st *pipes)
1575 {
> 1576 DC_FP_START();
1577 dcn30_populate_dml_writeback_from_context_fp(dc, res_ctx, pipes);
> 1578 DC_FP_END();
1579 }
1580

---
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