Hi Dave, kernel test robot noticed the following build errors: [auto build test ERROR on 91e21479c81dd4e9e22a78d7446f92f6b96a7284] url: https://github.com/intel-lab-lkp/linux/commits/Dave-Stevenson/drm-vc4-Limit-max_bpc-to-8-on-Pi0-3/20241024-005239 base: 91e21479c81dd4e9e22a78d7446f92f6b96a7284 patch link: https://lore.kernel.org/r/20241023-drm-vc4-2712-support-v1-11-1cc2d5594907%40raspberrypi.com patch subject: [PATCH 11/37] drm/vc4: hvs: Add support for BCM2712 HVS config: um-allmodconfig (https://download.01.org/0day-ci/archive/20241025/202410250541.6AcfkD5k-lkp@xxxxxxxxx/config) compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 5886454669c3c9026f7f27eab13509dd0241f2d6) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241025/202410250541.6AcfkD5k-lkp@xxxxxxxxx/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@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202410250541.6AcfkD5k-lkp@xxxxxxxxx/ All error/warnings (new ones prefixed by >>): In file included from drivers/gpu/drm/vc4/vc4_kms.c:17: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/gpu/drm/vc4/vc4_kms.c:17: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/gpu/drm/vc4/vc4_kms.c:17: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 693 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 701 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 709 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 718 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 727 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 736 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ In file included from drivers/gpu/drm/vc4/vc4_kms.c:17: In file included from include/drm/drm_atomic.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:36: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:28: In file included from include/linux/ftrace.h:13: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/gpu/drm/vc4/vc4_kms.c:357:3: warning: variable 'mux' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] 357 | default: | ^~~~~~~ drivers/gpu/drm/vc4/vc4_kms.c:364:20: note: uninitialized use occurs here 364 | VC4_SET_FIELD(mux, SCALER6_CONTROL_DSP1_TARGET)); | ^~~ drivers/gpu/drm/vc4/vc4_regs.h:16:36: note: expanded from macro 'VC4_SET_FIELD' 16 | WARN_ON(!FIELD_FIT(field##_MASK, value)); \ | ^~~~~ include/linux/bitfield.h:102:22: note: expanded from macro 'FIELD_FIT' 102 | !((((typeof(_mask))_val) << __bf_shf(_mask)) & ~(_mask)); \ | ^~~~ include/asm-generic/bug.h:123:25: note: expanded from macro 'WARN_ON' 123 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ drivers/gpu/drm/vc4/vc4_drv.h:668:10: note: expanded from macro 'HVS_WRITE' 668 | writel(val, hvs->regs + (offset)); \ | ^~~ drivers/gpu/drm/vc4/vc4_kms.c:337:20: note: initialize the variable 'mux' to silence this warning 337 | unsigned char mux; | ^ | = '\0' 14 warnings generated. -- In file included from drivers/gpu/drm/vc4/vc4_hvs.c:27: In file included from include/drm/drm_atomic_helper.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:548:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 548 | val = __raw_readb(PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:561:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 561 | val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' 37 | #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) | ^ In file included from drivers/gpu/drm/vc4/vc4_hvs.c:27: In file included from include/drm/drm_atomic_helper.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:574:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 574 | val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); | ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' 35 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ In file included from drivers/gpu/drm/vc4/vc4_hvs.c:27: In file included from include/drm/drm_atomic_helper.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:35: In file included from include/linux/interrupt.h:11: In file included from include/linux/hardirq.h:11: In file included from arch/um/include/asm/hardirq.h:5: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:14: In file included from arch/um/include/asm/io.h:24: include/asm-generic/io.h:585:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 585 | __raw_writeb(value, PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:595:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 595 | __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:605:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 605 | __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); | ~~~~~~~~~~ ^ include/asm-generic/io.h:693:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 693 | readsb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:701:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 701 | readsw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:709:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 709 | readsl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:718:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 718 | writesb(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:727:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 727 | writesw(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ include/asm-generic/io.h:736:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] 736 | writesl(PCI_IOBASE + addr, buffer, count); | ~~~~~~~~~~ ^ In file included from drivers/gpu/drm/vc4/vc4_hvs.c:27: In file included from include/drm/drm_atomic_helper.h:31: In file included from include/drm/drm_crtc.h:32: In file included from include/drm/drm_modes.h:33: In file included from include/drm/drm_connector.h:32: In file included from include/drm/drm_util.h:36: In file included from include/linux/kgdb.h:19: In file included from include/linux/kprobes.h:28: In file included from include/linux/ftrace.h:13: In file included from include/linux/kallsyms.h:13: In file included from include/linux/mm.h:2213: include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 518 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~ >> drivers/gpu/drm/vc4/vc4_hvs.c:1489:20: warning: variable 'base' is uninitialized when used here [-Wuninitialized] 1489 | VC4_SET_FIELD(base, SCALER6_DISPX_COB_BASE)); | ^~~~ drivers/gpu/drm/vc4/vc4_regs.h:16:36: note: expanded from macro 'VC4_SET_FIELD' 16 | WARN_ON(!FIELD_FIT(field##_MASK, value)); \ | ^~~~~ include/linux/bitfield.h:102:22: note: expanded from macro 'FIELD_FIT' 102 | !((((typeof(_mask))_val) << __bf_shf(_mask)) & ~(_mask)); \ | ^~~~ include/asm-generic/bug.h:123:25: note: expanded from macro 'WARN_ON' 123 | int __ret_warn_on = !!(condition); \ | ^~~~~~~~~ drivers/gpu/drm/vc4/vc4_drv.h:668:10: note: expanded from macro 'HVS_WRITE' 668 | writel(val, hvs->regs + (offset)); \ | ^~~ drivers/gpu/drm/vc4/vc4_hvs.c:1420:20: note: initialize the variable 'base' to silence this warning 1420 | u32 reg, top, base; | ^ | = 0 >> drivers/gpu/drm/vc4/vc4_hvs.c:1489:6: error: call to '__compiletime_assert_756' declared with 'error' attribute: FIELD_PREP: value too large for the field 1489 | VC4_SET_FIELD(base, SCALER6_DISPX_COB_BASE)); | ^ drivers/gpu/drm/vc4/vc4_regs.h:17:3: note: expanded from macro 'VC4_SET_FIELD' 17 | FIELD_PREP(field##_MASK, value); \ | ^ include/linux/bitfield.h:115:3: note: expanded from macro 'FIELD_PREP' 115 | __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ | ^ include/linux/bitfield.h:68:3: note: expanded from macro '__BF_FIELD_CHECK' 68 | BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \ | ^ note: (skipping 2 expansions in backtrace; use -fmacro-backtrace-limit=0 to see all) include/linux/compiler_types.h:505:2: note: expanded from macro '_compiletime_assert' 505 | __compiletime_assert(condition, msg, prefix, suffix) | ^ include/linux/compiler_types.h:498:4: note: expanded from macro '__compiletime_assert' 498 | prefix ## suffix(); \ | ^ <scratch space>:40:1: note: expanded from here 40 | __compiletime_assert_756 | ^ 14 warnings and 1 error generated. Kconfig warnings: (for reference only) WARNING: unmet direct dependencies detected for GET_FREE_REGION Depends on [n]: SPARSEMEM [=n] Selected by [m]: - RESOURCE_KUNIT_TEST [=m] && RUNTIME_TESTING_MENU [=y] && KUNIT [=m] vim +1489 drivers/gpu/drm/vc4/vc4_hvs.c 1416 1417 static int vc4_hvs_cob_init(struct vc4_hvs *hvs) 1418 { 1419 struct vc4_dev *vc4 = hvs->vc4; 1420 u32 reg, top, base; 1421 1422 /* 1423 * Recompute Composite Output Buffer (COB) allocations for the 1424 * displays 1425 */ 1426 switch (vc4->gen) { 1427 case VC4_GEN_4: 1428 /* The COB is 20736 pixels, or just over 10 lines at 2048 wide. 1429 * The bottom 2048 pixels are full 32bpp RGBA (intended for the 1430 * TXP composing RGBA to memory), whilst the remainder are only 1431 * 24bpp RGB. 1432 * 1433 * Assign 3 lines to channels 1 & 2, and just over 4 lines to 1434 * channel 0. 1435 */ 1436 #define VC4_COB_SIZE 20736 1437 #define VC4_COB_LINE_WIDTH 2048 1438 #define VC4_COB_NUM_LINES 3 1439 reg = 0; 1440 top = VC4_COB_LINE_WIDTH * VC4_COB_NUM_LINES; 1441 reg |= (top - 1) << 16; 1442 HVS_WRITE(SCALER_DISPBASE2, reg); 1443 reg = top; 1444 top += VC4_COB_LINE_WIDTH * VC4_COB_NUM_LINES; 1445 reg |= (top - 1) << 16; 1446 HVS_WRITE(SCALER_DISPBASE1, reg); 1447 reg = top; 1448 top = VC4_COB_SIZE; 1449 reg |= (top - 1) << 16; 1450 HVS_WRITE(SCALER_DISPBASE0, reg); 1451 break; 1452 1453 case VC4_GEN_5: 1454 /* The COB is 44416 pixels, or 10.8 lines at 4096 wide. 1455 * The bottom 4096 pixels are full RGBA (intended for the TXP 1456 * composing RGBA to memory), whilst the remainder are only 1457 * RGB. Addressing is always pixel wide. 1458 * 1459 * Assign 3 lines of 4096 to channels 1 & 2, and just over 4 1460 * lines. to channel 0. 1461 */ 1462 #define VC5_COB_SIZE 44416 1463 #define VC5_COB_LINE_WIDTH 4096 1464 #define VC5_COB_NUM_LINES 3 1465 reg = 0; 1466 top = VC5_COB_LINE_WIDTH * VC5_COB_NUM_LINES; 1467 reg |= top << 16; 1468 HVS_WRITE(SCALER_DISPBASE2, reg); 1469 top += 16; 1470 reg = top; 1471 top += VC5_COB_LINE_WIDTH * VC5_COB_NUM_LINES; 1472 reg |= top << 16; 1473 HVS_WRITE(SCALER_DISPBASE1, reg); 1474 top += 16; 1475 reg = top; 1476 top = VC5_COB_SIZE; 1477 reg |= top << 16; 1478 HVS_WRITE(SCALER_DISPBASE0, reg); 1479 break; 1480 1481 case VC4_GEN_6_C: 1482 #define VC6_COB_LINE_WIDTH 3840 1483 #define VC6_COB_NUM_LINES 4 1484 reg = 0; 1485 top = 3840; 1486 1487 HVS_WRITE(SCALER6_DISP2_COB, 1488 VC4_SET_FIELD(top, SCALER6_DISPX_COB_TOP) | > 1489 VC4_SET_FIELD(base, SCALER6_DISPX_COB_BASE)); 1490 1491 base = top + 16; 1492 top += VC6_COB_LINE_WIDTH * VC6_COB_NUM_LINES; 1493 1494 HVS_WRITE(SCALER6_DISP1_COB, 1495 VC4_SET_FIELD(top, SCALER6_DISPX_COB_TOP) | 1496 VC4_SET_FIELD(base, SCALER6_DISPX_COB_BASE)); 1497 1498 base = top + 16; 1499 top += VC6_COB_LINE_WIDTH * VC6_COB_NUM_LINES; 1500 1501 HVS_WRITE(SCALER6_DISP0_COB, 1502 VC4_SET_FIELD(top, SCALER6_DISPX_COB_TOP) | 1503 VC4_SET_FIELD(base, SCALER6_DISPX_COB_BASE)); 1504 break; 1505 1506 default: 1507 return -EINVAL; 1508 } 1509 1510 return 0; 1511 } 1512 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
