drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:1948:12: warning: stack frame size of 2896 bytes in function 'amdgpu_device_ip_early_init'

From: kernel test robot
Date: Sat Apr 24 2021 - 14:29:09 EST

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8db5efb83fa99e81c3f8dee92a6589b251f117f3
commit: 97e4910232fa1f81e806aa60c25a0450276d99a2 linux/compiler-clang.h: define HAVE_BUILTIN_BSWAP*
date: 6 weeks ago
config: powerpc-randconfig-r031-20210424 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8e9d17fd4243faa954ae35a4da94e5e922e458e5)
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=97e4910232fa1f81e806aa60c25a0450276d99a2
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 97e4910232fa1f81e806aa60c25a0450276d99a2
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=powerpc

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

All warnings (new ones prefixed by >>):

In file included from drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:39:
include/linux/efi.h:1093:34: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch]
status = get_var(L"SecureBoot", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size,
^
include/linux/efi.h:1101:24: warning: passing 1-byte aligned argument to 4-byte aligned parameter 2 of 'get_var' may result in an unaligned pointer access [-Walign-mismatch]
get_var(L"SetupMode", &EFI_GLOBAL_VARIABLE_GUID, NULL, &size, &setupmode);
^
>> drivers/gpu/drm/amd/amdgpu/amdgpu_device.c:1948:12: warning: stack frame size of 2896 bytes in function 'amdgpu_device_ip_early_init' [-Wframe-larger-than=]
static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
^
3 warnings generated.
--
>> drivers/gpu/drm/r128/r128_state.c:1203:12: warning: stack frame size of 2128 bytes in function 'r128_cce_clear' [-Wframe-larger-than=]
static int r128_cce_clear(struct drm_device *dev, void *data, struct drm_file *file_priv)
^
1 warning generated.
--
>> drivers/mtd/ftl.c:862:12: warning: stack frame size of 2624 bytes in function 'ftl_write' [-Wframe-larger-than=]
static int ftl_write(partition_t *part, caddr_t buffer,
^
1 warning generated.


vim +/amdgpu_device_ip_early_init +1948 drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

e2a75f88c3ad4b Alex Deucher 2017-04-27 1937
e3ecdffac9ccdb Alex Deucher 2018-03-15 1938 /**
e3ecdffac9ccdb Alex Deucher 2018-03-15 1939 * amdgpu_device_ip_early_init - run early init for hardware IPs
e3ecdffac9ccdb Alex Deucher 2018-03-15 1940 *
e3ecdffac9ccdb Alex Deucher 2018-03-15 1941 * @adev: amdgpu_device pointer
e3ecdffac9ccdb Alex Deucher 2018-03-15 1942 *
e3ecdffac9ccdb Alex Deucher 2018-03-15 1943 * Early initialization pass for hardware IPs. The hardware IPs that make
e3ecdffac9ccdb Alex Deucher 2018-03-15 1944 * up each asic are discovered each IP's early_init callback is run. This
e3ecdffac9ccdb Alex Deucher 2018-03-15 1945 * is the first stage in initializing the asic.
e3ecdffac9ccdb Alex Deucher 2018-03-15 1946 * Returns 0 on success, negative error code on failure.
e3ecdffac9ccdb Alex Deucher 2018-03-15 1947 */
06ec907054c5a4 Alex Deucher 2017-12-14 @1948 static int amdgpu_device_ip_early_init(struct amdgpu_device *adev)
d38ceaf99ed015 Alex Deucher 2015-04-20 1949 {
aaa36a976bbb9b Alex Deucher 2015-04-20 1950 int i, r;
d38ceaf99ed015 Alex Deucher 2015-04-20 1951
483ef98588aa9f Alex Deucher 2016-09-30 1952 amdgpu_device_enable_virtual_display(adev);
a6be7570518f85 Emily Deng 2016-08-08 1953
00a979f3d69e0c Wenhui Sheng 2020-06-23 1954 if (amdgpu_sriov_vf(adev)) {
00a979f3d69e0c Wenhui Sheng 2020-06-23 1955 r = amdgpu_virt_request_full_gpu(adev, true);
aaa36a976bbb9b Alex Deucher 2015-04-20 1956 if (r)
aaa36a976bbb9b Alex Deucher 2015-04-20 1957 return r;
00a979f3d69e0c Wenhui Sheng 2020-06-23 1958 }
00a979f3d69e0c Wenhui Sheng 2020-06-23 1959
d38ceaf99ed015 Alex Deucher 2015-04-20 1960 switch (adev->asic_type) {
33f34802686c8b Ken Wang 2016-01-21 1961 #ifdef CONFIG_DRM_AMDGPU_SI
33f34802686c8b Ken Wang 2016-01-21 1962 case CHIP_VERDE:
33f34802686c8b Ken Wang 2016-01-21 1963 case CHIP_TAHITI:
33f34802686c8b Ken Wang 2016-01-21 1964 case CHIP_PITCAIRN:
33f34802686c8b Ken Wang 2016-01-21 1965 case CHIP_OLAND:
33f34802686c8b Ken Wang 2016-01-21 1966 case CHIP_HAINAN:
295d0dafd31c9a Ken Wang 2016-05-24 1967 adev->family = AMDGPU_FAMILY_SI;
33f34802686c8b Ken Wang 2016-01-21 1968 r = si_set_ip_blocks(adev);
33f34802686c8b Ken Wang 2016-01-21 1969 if (r)
33f34802686c8b Ken Wang 2016-01-21 1970 return r;
33f34802686c8b Ken Wang 2016-01-21 1971 break;
33f34802686c8b Ken Wang 2016-01-21 1972 #endif
a2e73f56fa6282 Alex Deucher 2015-04-20 1973 #ifdef CONFIG_DRM_AMDGPU_CIK
a2e73f56fa6282 Alex Deucher 2015-04-20 1974 case CHIP_BONAIRE:
a2e73f56fa6282 Alex Deucher 2015-04-20 1975 case CHIP_HAWAII:
a2e73f56fa6282 Alex Deucher 2015-04-20 1976 case CHIP_KAVERI:
a2e73f56fa6282 Alex Deucher 2015-04-20 1977 case CHIP_KABINI:
a2e73f56fa6282 Alex Deucher 2015-04-20 1978 case CHIP_MULLINS:
e1ad2d53bc438d Alex Deucher 2020-05-18 1979 if (adev->flags & AMD_IS_APU)
a2e73f56fa6282 Alex Deucher 2015-04-20 1980 adev->family = AMDGPU_FAMILY_KV;
e1ad2d53bc438d Alex Deucher 2020-05-18 1981 else
e1ad2d53bc438d Alex Deucher 2020-05-18 1982 adev->family = AMDGPU_FAMILY_CI;
a2e73f56fa6282 Alex Deucher 2015-04-20 1983
a2e73f56fa6282 Alex Deucher 2015-04-20 1984 r = cik_set_ip_blocks(adev);
a2e73f56fa6282 Alex Deucher 2015-04-20 1985 if (r)
a2e73f56fa6282 Alex Deucher 2015-04-20 1986 return r;
a2e73f56fa6282 Alex Deucher 2015-04-20 1987 break;
a2e73f56fa6282 Alex Deucher 2015-04-20 1988 #endif
da87c30b174e7a Alex Deucher 2020-05-18 1989 case CHIP_TOPAZ:
da87c30b174e7a Alex Deucher 2020-05-18 1990 case CHIP_TONGA:
da87c30b174e7a Alex Deucher 2020-05-18 1991 case CHIP_FIJI:
da87c30b174e7a Alex Deucher 2020-05-18 1992 case CHIP_POLARIS10:
da87c30b174e7a Alex Deucher 2020-05-18 1993 case CHIP_POLARIS11:
da87c30b174e7a Alex Deucher 2020-05-18 1994 case CHIP_POLARIS12:
da87c30b174e7a Alex Deucher 2020-05-18 1995 case CHIP_VEGAM:
da87c30b174e7a Alex Deucher 2020-05-18 1996 case CHIP_CARRIZO:
da87c30b174e7a Alex Deucher 2020-05-18 1997 case CHIP_STONEY:
da87c30b174e7a Alex Deucher 2020-05-18 1998 if (adev->flags & AMD_IS_APU)
da87c30b174e7a Alex Deucher 2020-05-18 1999 adev->family = AMDGPU_FAMILY_CZ;
da87c30b174e7a Alex Deucher 2020-05-18 2000 else
da87c30b174e7a Alex Deucher 2020-05-18 2001 adev->family = AMDGPU_FAMILY_VI;
da87c30b174e7a Alex Deucher 2020-05-18 2002
da87c30b174e7a Alex Deucher 2020-05-18 2003 r = vi_set_ip_blocks(adev);
da87c30b174e7a Alex Deucher 2020-05-18 2004 if (r)
da87c30b174e7a Alex Deucher 2020-05-18 2005 return r;
da87c30b174e7a Alex Deucher 2020-05-18 2006 break;
460826e6a061c2 Ken Wang 2017-03-06 2007 case CHIP_VEGA10:
e48a3cd9cbb707 Alex Deucher 2017-09-01 2008 case CHIP_VEGA12:
e4bd8170407dc5 Feifei Xu 2018-04-20 2009 case CHIP_VEGA20:
2ca8a5d2ebd12c Chunming Zhou 2016-12-07 2010 case CHIP_RAVEN:
61cf44c1dbb66c Le Ma 2018-09-11 2011 case CHIP_ARCTURUS:
b51a26a02abe92 Huang Rui 2019-07-24 2012 case CHIP_RENOIR:
70534d1ee89cea Alex Deucher 2020-05-18 2013 if (adev->flags & AMD_IS_APU)
2ca8a5d2ebd12c Chunming Zhou 2016-12-07 2014 adev->family = AMDGPU_FAMILY_RV;
2ca8a5d2ebd12c Chunming Zhou 2016-12-07 2015 else
460826e6a061c2 Ken Wang 2017-03-06 2016 adev->family = AMDGPU_FAMILY_AI;
460826e6a061c2 Ken Wang 2017-03-06 2017
460826e6a061c2 Ken Wang 2017-03-06 2018 r = soc15_set_ip_blocks(adev);
460826e6a061c2 Ken Wang 2017-03-06 2019 if (r)
460826e6a061c2 Ken Wang 2017-03-06 2020 return r;
460826e6a061c2 Ken Wang 2017-03-06 2021 break;
0a5b8c7b9490e9 Huang Rui 2017-07-19 2022 case CHIP_NAVI10:
7ecb5cd451b7bc Xiaojie Yuan 2018-12-17 2023 case CHIP_NAVI14:
4808cf9c2a8242 Xiaojie Yuan 2019-05-16 2024 case CHIP_NAVI12:
11e8aef52ef854 Likun Gao 2019-03-19 2025 case CHIP_SIENNA_CICHLID:
41f446bf52f36b Jiansong Chen 2020-02-10 2026 case CHIP_NAVY_FLOUNDER:
144722fa3ac32c Tao Zhou 2020-10-02 2027 case CHIP_DIMGREY_CAVEFISH:
4e52a9f8d5706b Huang Rui 2020-09-25 2028 case CHIP_VANGOGH:
4e52a9f8d5706b Huang Rui 2020-09-25 2029 if (adev->asic_type == CHIP_VANGOGH)
4e52a9f8d5706b Huang Rui 2020-09-25 2030 adev->family = AMDGPU_FAMILY_VGH;
4e52a9f8d5706b Huang Rui 2020-09-25 2031 else
0a5b8c7b9490e9 Huang Rui 2017-07-19 2032 adev->family = AMDGPU_FAMILY_NV;
0a5b8c7b9490e9 Huang Rui 2017-07-19 2033
0a5b8c7b9490e9 Huang Rui 2017-07-19 2034 r = nv_set_ip_blocks(adev);
0a5b8c7b9490e9 Huang Rui 2017-07-19 2035 if (r)
0a5b8c7b9490e9 Huang Rui 2017-07-19 2036 return r;
0a5b8c7b9490e9 Huang Rui 2017-07-19 2037 break;
d38ceaf99ed015 Alex Deucher 2015-04-20 2038 default:
d38ceaf99ed015 Alex Deucher 2015-04-20 2039 /* FIXME: not supported yet */
d38ceaf99ed015 Alex Deucher 2015-04-20 2040 return -EINVAL;
d38ceaf99ed015 Alex Deucher 2015-04-20 2041 }
d38ceaf99ed015 Alex Deucher 2015-04-20 2042
1884734a03904d pding 2017-11-06 2043 amdgpu_amdkfd_device_probe(adev);
1884734a03904d pding 2017-11-06 2044
3b94fb101f4071 Likun Gao 2019-01-31 2045 adev->pm.pp_feature = amdgpu_pp_feature_mask;
a35ad98bf9d37b Shirish S 2019-09-12 2046 if (amdgpu_sriov_vf(adev) || sched_policy == KFD_SCHED_POLICY_NO_HWS)
005440066f929b Huang Rui 2019-03-13 2047 adev->pm.pp_feature &= ~PP_GFXOFF_MASK;
00f54b97d7de97 Huang Rui 2018-02-27 2048
d38ceaf99ed015 Alex Deucher 2015-04-20 2049 for (i = 0; i < adev->num_ip_blocks; i++) {
d38ceaf99ed015 Alex Deucher 2015-04-20 2050 if ((amdgpu_ip_block_mask & (1 << i)) == 0) {
ed8cf00ce4dcdd Huang Rui 2017-05-03 2051 DRM_ERROR("disabled ip block: %d <%s>\n",
ed8cf00ce4dcdd Huang Rui 2017-05-03 2052 i, adev->ip_blocks[i].version->funcs->name);
a1255107212675 Alex Deucher 2016-10-13 2053 adev->ip_blocks[i].status.valid = false;
d38ceaf99ed015 Alex Deucher 2015-04-20 2054 } else {
a1255107212675 Alex Deucher 2016-10-13 2055 if (adev->ip_blocks[i].version->funcs->early_init) {
a1255107212675 Alex Deucher 2016-10-13 2056 r = adev->ip_blocks[i].version->funcs->early_init((void *)adev);
2c1a2784039442 Alex Deucher 2015-12-07 2057 if (r == -ENOENT) {
a1255107212675 Alex Deucher 2016-10-13 2058 adev->ip_blocks[i].status.valid = false;
2c1a2784039442 Alex Deucher 2015-12-07 2059 } else if (r) {
a1255107212675 Alex Deucher 2016-10-13 2060 DRM_ERROR("early_init of IP block <%s> failed %d\n",
a1255107212675 Alex Deucher 2016-10-13 2061 adev->ip_blocks[i].version->funcs->name, r);
d38ceaf99ed015 Alex Deucher 2015-04-20 2062 return r;
2c1a2784039442 Alex Deucher 2015-12-07 2063 } else {
a1255107212675 Alex Deucher 2016-10-13 2064 adev->ip_blocks[i].status.valid = true;
2c1a2784039442 Alex Deucher 2015-12-07 2065 }
974e6b641f1428 Alex Deucher 2015-07-10 2066 } else {
a1255107212675 Alex Deucher 2016-10-13 2067 adev->ip_blocks[i].status.valid = true;
974e6b641f1428 Alex Deucher 2015-07-10 2068 }
d38ceaf99ed015 Alex Deucher 2015-04-20 2069 }
21a249ca02415c Alex Deucher 2019-06-17 2070 /* get the vbios after the asic_funcs are set up */
21a249ca02415c Alex Deucher 2019-06-17 2071 if (adev->ip_blocks[i].version->type == AMD_IP_BLOCK_TYPE_COMMON) {
6e29c227a49764 Alex Deucher 2020-05-15 2072 r = amdgpu_device_parse_gpu_info_fw(adev);
6e29c227a49764 Alex Deucher 2020-05-15 2073 if (r)
6e29c227a49764 Alex Deucher 2020-05-15 2074 return r;
6e29c227a49764 Alex Deucher 2020-05-15 2075
21a249ca02415c Alex Deucher 2019-06-17 2076 /* Read BIOS */
21a249ca02415c Alex Deucher 2019-06-17 2077 if (!amdgpu_get_bios(adev))
21a249ca02415c Alex Deucher 2019-06-17 2078 return -EINVAL;
21a249ca02415c Alex Deucher 2019-06-17 2079
21a249ca02415c Alex Deucher 2019-06-17 2080 r = amdgpu_atombios_init(adev);
21a249ca02415c Alex Deucher 2019-06-17 2081 if (r) {
21a249ca02415c Alex Deucher 2019-06-17 2082 dev_err(adev->dev, "amdgpu_atombios_init failed\n");
21a249ca02415c Alex Deucher 2019-06-17 2083 amdgpu_vf_error_put(adev, AMDGIM_ERROR_VF_ATOMBIOS_INIT_FAIL, 0, 0);
21a249ca02415c Alex Deucher 2019-06-17 2084 return r;
21a249ca02415c Alex Deucher 2019-06-17 2085 }
21a249ca02415c Alex Deucher 2019-06-17 2086 }
d38ceaf99ed015 Alex Deucher 2015-04-20 2087 }
d38ceaf99ed015 Alex Deucher 2015-04-20 2088
395d1fb948d98e Nicolai Hähnle 2016-06-02 2089 adev->cg_flags &= amdgpu_cg_mask;
395d1fb948d98e Nicolai Hähnle 2016-06-02 2090 adev->pg_flags &= amdgpu_pg_mask;
395d1fb948d98e Nicolai Hähnle 2016-06-02 2091
d38ceaf99ed015 Alex Deucher 2015-04-20 2092 return 0;
d38ceaf99ed015 Alex Deucher 2015-04-20 2093 }
d38ceaf99ed015 Alex Deucher 2015-04-20 2094

:::::: The code at line 1948 was first introduced by commit
:::::: 06ec907054c5a48f28ff6856885522e3a7103bb7 drm/amdgpu: use consistent naming for static funcs in amdgpu_device.c

:::::: TO: Alex Deucher <alexander.deucher@xxxxxxx>
:::::: CC: Alex Deucher <alexander.deucher@xxxxxxx>

---
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