From: kernel test robot <lkp@intel.com>
To: Alex Deucher <alexander.deucher@amd.com>
Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev
Subject: [agd5f:amd-staging-drm-next-queue-reset 60/60] drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c:2139:11: warning: operator '?:' has lower precedence than '|'; '|' will be evaluated first
Date: Sun, 21 Jul 2024 01:23:07 +0800 [thread overview]
Message-ID: <202407210134.PApSunS1-lkp@intel.com> (raw)
tree: https://gitlab.freedesktop.org/agd5f/linux.git amd-staging-drm-next-queue-reset
head: a5bdae426e5b6593ac3ac0814950110bec1dda31
commit: a5bdae426e5b6593ac3ac0814950110bec1dda31 [60/60] drm/amdgpu/gfx7: add ring reset callback for gfx
config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20240721/202407210134.PApSunS1-lkp@intel.com/config)
compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240721/202407210134.PApSunS1-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202407210134.PApSunS1-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c:2139:11: warning: operator '?:' has lower precedence than '|'; '|' will be evaluated first [-Wbitwise-conditional-parentheses]
2135 | amdgpu_ring_write(ring, (EOP_TCL1_ACTION_EN |
| ~~~~~~~~~~~~~~~~~~~~
2136 | EOP_TC_ACTION_EN |
| ~~~~~~~~~~~~~~~~~~
2137 | EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2138 | EVENT_INDEX(5) |
| ~~~~~~~~~~~~~~~~
2139 | exec ? EOP_EXEC : 0));
| ~~~~ ^
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c:2139:11: note: place parentheses around the '|' expression to silence this warning
2135 | amdgpu_ring_write(ring, (EOP_TCL1_ACTION_EN |
| ~~~~~~~~~~~~~~~~~~~~
2136 | EOP_TC_ACTION_EN |
| ~~~~~~~~~~~~~~~~~~
2137 | EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) |
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
2138 | EVENT_INDEX(5) |
| ~~~~~~~~~~~~~~~~
2139 | exec ? EOP_EXEC : 0));
| ~~~~ ^
drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c:2139:11: note: place parentheses around the '?:' expression to evaluate it first
2139 | exec ? EOP_EXEC : 0));
| ^
| ( )
1 warning generated.
vim +2139 drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c
2100
2101 /**
2102 * gfx_v7_0_ring_emit_fence_gfx - emit a fence on the gfx ring
2103 *
2104 * @ring: amdgpu_ring structure holding ring information
2105 * @addr: address
2106 * @seq: sequence number
2107 * @flags: fence related flags
2108 *
2109 * Emits a fence sequence number on the gfx ring and flushes
2110 * GPU caches.
2111 */
2112 static void gfx_v7_0_ring_emit_fence_gfx(struct amdgpu_ring *ring, u64 addr,
2113 u64 seq, unsigned flags)
2114 {
2115 bool write64bit = flags & AMDGPU_FENCE_FLAG_64BIT;
2116 bool int_sel = flags & AMDGPU_FENCE_FLAG_INT;
2117 bool exec = flags & AMDGPU_FENCE_FLAG_EXEC;
2118
2119 /* Workaround for cache flush problems. First send a dummy EOP
2120 * event down the pipe with seq one below.
2121 */
2122 amdgpu_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
2123 amdgpu_ring_write(ring, (EOP_TCL1_ACTION_EN |
2124 EOP_TC_ACTION_EN |
2125 EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) |
2126 EVENT_INDEX(5)));
2127 amdgpu_ring_write(ring, addr & 0xfffffffc);
2128 amdgpu_ring_write(ring, (upper_32_bits(addr) & 0xffff) |
2129 DATA_SEL(1) | INT_SEL(0));
2130 amdgpu_ring_write(ring, lower_32_bits(seq - 1));
2131 amdgpu_ring_write(ring, upper_32_bits(seq - 1));
2132
2133 /* Then send the real EOP event down the pipe. */
2134 amdgpu_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
2135 amdgpu_ring_write(ring, (EOP_TCL1_ACTION_EN |
2136 EOP_TC_ACTION_EN |
2137 EVENT_TYPE(CACHE_FLUSH_AND_INV_TS_EVENT) |
2138 EVENT_INDEX(5) |
> 2139 exec ? EOP_EXEC : 0));
2140 amdgpu_ring_write(ring, addr & 0xfffffffc);
2141 amdgpu_ring_write(ring, (upper_32_bits(addr) & 0xffff) |
2142 DATA_SEL(write64bit ? 2 : 1) | INT_SEL(int_sel ? 2 : 0));
2143 amdgpu_ring_write(ring, lower_32_bits(seq));
2144 amdgpu_ring_write(ring, upper_32_bits(seq));
2145 }
2146
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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