From: kernel test robot <lkp@intel.com>
To: Samson Tam <Samson.Tam@amd.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Alex Deucher <alexander.deucher@amd.com>,
George Zhang <george.zhang@amd.com>,
Alex Hung <alex.hung@amd.com>
Subject: drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1677:52-53: WARNING: Use ARRAY_SIZE
Date: Wed, 14 Jan 2026 04:40:20 +0800 [thread overview]
Message-ID: <202601140431.7BC1pguX-lkp@intel.com> (raw)
Hi Samson,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: b54345928fa1dbde534e32ecaa138678fd5d2135
commit: 5c06c1df3582102e837dc7d6e8a462323277e57b drm/amd/display: Move SPL to a new path
date: 11 months ago
config: x86_64-randconfig-101-20260112 (https://download.01.org/0day-ci/archive/20260114/202601140431.7BC1pguX-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
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/202601140431.7BC1pguX-lkp@intel.com/
cocci warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1677:52-53: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1649:60-61: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1691:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1719:54-55: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1705:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1663:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1630:50-51: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1635:50-51: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1611:50-51: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1616:50-51: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1561:57-58: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1592:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1597:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1573:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1578:53-54: WARNING: Use ARRAY_SIZE
drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c:1552:57-58: WARNING: Use ARRAY_SIZE
--
>> drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c:57:15-16: WARNING opportunity for max()
drivers/gpu/drm/amd/display/dc/sspl/dc_spl.c:59:15-16: WARNING opportunity for max()
vim +1677 drivers/gpu/drm/amd/display/dc/sspl/dc_spl_scl_easf_filters.c
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1520
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1521 static uint32_t spl_easf_get_scale_ratio_to_reg_value(struct spl_fixed31_32 ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1522 struct scale_ratio_to_reg_value_lookup *lookup_table_base_ptr,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1523 unsigned int num_entries)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1524 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1525 unsigned int count = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1526 uint32_t value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1527 struct scale_ratio_to_reg_value_lookup *lookup_table_index_ptr;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1528
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1529 lookup_table_index_ptr = (lookup_table_base_ptr + num_entries - 1);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1530 value = lookup_table_index_ptr->reg_value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1531
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1532 while (count < num_entries) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1533
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1534 lookup_table_index_ptr = (lookup_table_base_ptr + count);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1535 if (lookup_table_index_ptr->numer < 0)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1536 break;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1537
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1538 if (ratio.value < spl_fixpt_from_fraction(
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1539 lookup_table_index_ptr->numer,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1540 lookup_table_index_ptr->denom).value) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1541 value = lookup_table_index_ptr->reg_value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1542 break;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1543 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1544
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1545 count++;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1546 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1547 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1548 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1549 uint32_t spl_get_v_bf3_mode(struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1550 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1551 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1552 unsigned int num_entries = sizeof(easf_v_bf3_mode_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1553 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1554 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1555 easf_v_bf3_mode_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1556 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1557 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1558 uint32_t spl_get_h_bf3_mode(struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1559 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1560 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1561 unsigned int num_entries = sizeof(easf_h_bf3_mode_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1562 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1563 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1564 easf_h_bf3_mode_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1565 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1566 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1567 uint32_t spl_get_reducer_gain6(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1568 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1569 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1570 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1571
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1572 if (taps == 4) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1573 num_entries = sizeof(easf_reducer_gain6_4tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1574 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1575 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1576 easf_reducer_gain6_4tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1577 } else if (taps == 6) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1578 num_entries = sizeof(easf_reducer_gain6_6tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1579 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1580 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1581 easf_reducer_gain6_6tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1582 } else
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1583 value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1584 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1585 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1586 uint32_t spl_get_reducer_gain4(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1587 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1588 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1589 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1590
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1591 if (taps == 4) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1592 num_entries = sizeof(easf_reducer_gain4_4tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1593 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1594 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1595 easf_reducer_gain4_4tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1596 } else if (taps == 6) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1597 num_entries = sizeof(easf_reducer_gain4_6tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1598 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1599 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1600 easf_reducer_gain4_6tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1601 } else
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1602 value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1603 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1604 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1605 uint32_t spl_get_gainRing6(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1606 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1607 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1608 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1609
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1610 if (taps == 4) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1611 num_entries = sizeof(easf_gain_ring6_4tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1612 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1613 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1614 easf_gain_ring6_4tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1615 } else if (taps == 6) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1616 num_entries = sizeof(easf_gain_ring6_6tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1617 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1618 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1619 easf_gain_ring6_6tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1620 } else
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1621 value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1622 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1623 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1624 uint32_t spl_get_gainRing4(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1625 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1626 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1627 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1628
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1629 if (taps == 4) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1630 num_entries = sizeof(easf_gain_ring4_4tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1631 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1632 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1633 easf_gain_ring4_4tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1634 } else if (taps == 6) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1635 num_entries = sizeof(easf_gain_ring4_6tap_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1636 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1637 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1638 easf_gain_ring4_6tap_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1639 } else
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1640 value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1641 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1642 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1643 uint32_t spl_get_3tap_dntilt_uptilt_offset(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1644 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1645 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1646 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1647
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1648 if (taps == 3) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1649 num_entries = sizeof(easf_3tap_dntilt_uptilt_offset_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1650 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1651 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1652 easf_3tap_dntilt_uptilt_offset_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1653 } else
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1654 value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1655 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1656 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1657 uint32_t spl_get_3tap_uptilt_maxval(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1658 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1659 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1660 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1661
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1662 if (taps == 3) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1663 num_entries = sizeof(easf_3tap_uptilt_maxval_lookup) /
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1664 sizeof(struct scale_ratio_to_reg_value_lookup);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1665 value = spl_easf_get_scale_ratio_to_reg_value(ratio,
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1666 easf_3tap_uptilt_maxval_lookup, num_entries);
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1667 } else
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1668 value = 0;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1669 return value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1670 }
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1671 uint32_t spl_get_3tap_dntilt_slope(int taps, struct spl_fixed31_32 ratio)
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1672 {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1673 uint32_t value;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1674 unsigned int num_entries;
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1675
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 1676 if (taps == 3) {
6efc0ab3b05de0 drivers/gpu/drm/amd/display/dc/spl/dc_spl_scl_easf_filters.c Samson Tam 2024-08-16 @1677 num_entries = sizeof(easf_3tap_dntilt_slope_lookup) /
:::::: The code at line 1677 was first introduced by commit
:::::: 6efc0ab3b05de0d7bab8ec0597214e4788251071 drm/amd/display: add back quality EASF and ISHARP and dc dependency changes
:::::: TO: Samson Tam <Samson.Tam@amd.com>
:::::: CC: Alex Deucher <alexander.deucher@amd.com>
--
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2026-01-13 20:40 kernel test robot [this message]
2026-01-16 8:52 kernel test robot
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