From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com
Subject: [fustini:b4/ssqosid-cbqri-rqsc 15/19] arch/riscv/kernel/qos/qos_resctrl.c:40:2: error: implicit declaration of function 'iowrite64'; did you mean 'iowrite32'?
Date: Sat, 11 Apr 2026 01:41:09 +0800 [thread overview]
Message-ID: <202604110127.A9TP1tkS-lkp@intel.com> (raw)
::::::
:::::: Manual check reason: "only suspicious fbc files changed"
::::::
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: Drew Fustini <fustini@kernel.org>
CC: Adrien Ricciardi <aricciardi@baylibre.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/fustini/linux.git b4/ssqosid-cbqri-rqsc
head: 11e30be7cbd915592685a3e18bcf53f4ff0c94f7
commit: bfd6a2f1cb6b4fd665530e33c5452f95040e86e6 [15/19] RISC-V: QoS: add to build when CONFIG_RISCV_ISA_SSQOSID set
:::::: branch date: 2 days ago
:::::: commit date: 2 days ago
config: riscv-randconfig-001-20260410 (https://download.01.org/0day-ci/archive/20260411/202604110127.A9TP1tkS-lkp@intel.com/config)
compiler: riscv32-linux-gcc (GCC) 8.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260411/202604110127.A9TP1tkS-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/r/202604110127.A9TP1tkS-lkp@intel.com/
All errors (new ones prefixed by >>):
arch/riscv/kernel/qos/qos_resctrl.c: In function 'cbqri_set_cbm':
>> arch/riscv/kernel/qos/qos_resctrl.c:40:2: error: implicit declaration of function 'iowrite64'; did you mean 'iowrite32'? [-Werror=implicit-function-declaration]
iowrite64(cbm, ctrl->base + reg_offset);
^~~~~~~~~
iowrite32
arch/riscv/kernel/qos/qos_resctrl.c: In function 'cbqri_set_rbwb':
>> arch/riscv/kernel/qos/qos_resctrl.c:50:8: error: implicit declaration of function 'ioread64'; did you mean 'ioread32'? [-Werror=implicit-function-declaration]
reg = ioread64(ctrl->base + reg_offset);
^~~~~~~~
ioread32
In file included from <command-line>:
arch/riscv/kernel/qos/qos_resctrl.c: In function 'cbqri_wait_busy_flag':
include/linux/bits.h:48:20: warning: left shift count >= width of type [-Wshift-count-overflow]
(type_max(t) << (l) & \
^~
include/linux/compiler_types.h:686:9: note: in definition of macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:79:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) > \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:79:19: note: in expansion of macro '__bf_cast_unsigned'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) > \
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:177:3: note: in expansion of macro '__BF_FIELD_CHECK_REG'
__BF_FIELD_CHECK_REG(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:75:10: note: in expansion of macro 'FIELD_GET'
busy = FIELD_GET(CBQRI_CONTROL_REGISTERS_BUSY_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:41:46: note: in expansion of macro 'GENMASK'
#define CBQRI_CONTROL_REGISTERS_BUSY_MASK GENMASK(39, 39)
^~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:75:20: note: in expansion of macro 'CBQRI_CONTROL_REGISTERS_BUSY_MASK'
busy = FIELD_GET(CBQRI_CONTROL_REGISTERS_BUSY_MASK, reg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:20: warning: right shift count >= width of type [-Wshift-count-overflow]
type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
^~
include/linux/compiler_types.h:686:9: note: in definition of macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:79:2: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) > \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:79:19: note: in expansion of macro '__bf_cast_unsigned'
BUILD_BUG_ON_MSG(__bf_cast_unsigned(mask, mask) > \
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:177:3: note: in expansion of macro '__BF_FIELD_CHECK_REG'
__BF_FIELD_CHECK_REG(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:75:10: note: in expansion of macro 'FIELD_GET'
busy = FIELD_GET(CBQRI_CONTROL_REGISTERS_BUSY_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:41:46: note: in expansion of macro 'GENMASK'
#define CBQRI_CONTROL_REGISTERS_BUSY_MASK GENMASK(39, 39)
^~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:75:20: note: in expansion of macro 'CBQRI_CONTROL_REGISTERS_BUSY_MASK'
busy = FIELD_GET(CBQRI_CONTROL_REGISTERS_BUSY_MASK, reg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:48:20: warning: left shift count >= width of type [-Wshift-count-overflow]
(type_max(t) << (l) & \
^~
include/linux/compiler_types.h:686:9: note: in definition of macro '__compiletime_assert'
if (!(condition)) \
^~~~~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:67:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG(!__builtin_constant_p(_mask), \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:97:3: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
__BF_FIELD_CHECK_MASK(mask, 0U, pfx); \
^~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:75:10: note: in expansion of macro 'FIELD_GET'
busy = FIELD_GET(CBQRI_CONTROL_REGISTERS_BUSY_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:41:46: note: in expansion of macro 'GENMASK'
#define CBQRI_CONTROL_REGISTERS_BUSY_MASK GENMASK(39, 39)
--
__BF_FIELD_CHECK_MASK(mask, 0U, pfx); \
^~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:19: note: in expansion of macro 'FIELD_GET'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~
In file included from arch/riscv/kernel/qos/internal.h:5,
from arch/riscv/kernel/qos/qos_resctrl.c:15:
include/linux/bits.h:48:20: warning: left shift count >= width of type [-Wshift-count-overflow]
(type_max(t) << (l) & \
^~
include/linux/bitfield.h:98:28: note: in definition of macro '__FIELD_GET'
(typeof(mask))(((reg) & (mask)) >> __bf_shf(mask)); \
^~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:19: note: in expansion of macro 'FIELD_GET'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:33:45: note: in expansion of macro 'GENMASK'
#define CBQRI_BC_CAPABILITIES_MRBWB_MASK GENMASK(47, 32)
^~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:29: note: in expansion of macro 'CBQRI_BC_CAPABILITIES_MRBWB_MASK'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:20: warning: right shift count >= width of type [-Wshift-count-overflow]
type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
^~
include/linux/bitfield.h:98:28: note: in definition of macro '__FIELD_GET'
(typeof(mask))(((reg) & (mask)) >> __bf_shf(mask)); \
^~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:19: note: in expansion of macro 'FIELD_GET'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:33:45: note: in expansion of macro 'GENMASK'
#define CBQRI_BC_CAPABILITIES_MRBWB_MASK GENMASK(47, 32)
^~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:29: note: in expansion of macro 'CBQRI_BC_CAPABILITIES_MRBWB_MASK'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:48:20: warning: left shift count >= width of type [-Wshift-count-overflow]
(type_max(t) << (l) & \
^~
include/linux/bitfield.h:47:38: note: in definition of macro '__bf_shf'
#define __bf_shf(x) (__builtin_ffsll(x) - 1)
^
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:19: note: in expansion of macro 'FIELD_GET'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:33:45: note: in expansion of macro 'GENMASK'
#define CBQRI_BC_CAPABILITIES_MRBWB_MASK GENMASK(47, 32)
^~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:29: note: in expansion of macro 'CBQRI_BC_CAPABILITIES_MRBWB_MASK'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bits.h:49:20: warning: right shift count >= width of type [-Wshift-count-overflow]
type_max(t) >> (BITS_PER_TYPE(t) - 1 - (h)))))
^~
include/linux/bitfield.h:47:38: note: in definition of macro '__bf_shf'
#define __bf_shf(x) (__builtin_ffsll(x) - 1)
^
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:19: note: in expansion of macro 'FIELD_GET'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~
include/linux/bits.h:51:24: note: in expansion of macro 'GENMASK_TYPE'
#define GENMASK(h, l) GENMASK_TYPE(unsigned long, h, l)
^~~~~~~~~~~~
arch/riscv/kernel/qos/internal.h:33:45: note: in expansion of macro 'GENMASK'
#define CBQRI_BC_CAPABILITIES_MRBWB_MASK GENMASK(47, 32)
^~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:29: note: in expansion of macro 'CBQRI_BC_CAPABILITIES_MRBWB_MASK'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:98:35: warning: right shift count is negative [-Wshift-count-negative]
(typeof(mask))(((reg) & (mask)) >> __bf_shf(mask)); \
^~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:385:19: note: in expansion of macro 'FIELD_GET'
ctrl->bc.mrbwb = FIELD_GET(CBQRI_BC_CAPABILITIES_MRBWB_MASK, reg);
^~~~~~~~~
In file included from <command-line>:
In function 'cbqri_wait_busy_flag.part.4',
inlined from 'cbqri_wait_busy_flag' at arch/riscv/kernel/qos/qos_resctrl.c:67:12:
>> include/linux/compiler_types.h:706:38: error: call to '__compiletime_assert_222' declared with attribute error: FIELD_GET: mask is zero
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:687:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:69:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:97:3: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
__BF_FIELD_CHECK_MASK(mask, 0U, pfx); \
^~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:75:10: note: in expansion of macro 'FIELD_GET'
busy = FIELD_GET(CBQRI_CONTROL_REGISTERS_BUSY_MASK, reg);
^~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c: In function 'cbqri_cc_alloc_op':
include/linux/compiler_types.h:706:38: error: call to '__compiletime_assert_247' declared with attribute error: FIELD_GET: mask is zero
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:687:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:69:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:97:3: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
__BF_FIELD_CHECK_MASK(mask, 0U, pfx); \
^~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:125:11: note: in expansion of macro 'FIELD_GET'
status = FIELD_GET(CBQRI_CONTROL_REGISTERS_STATUS_MASK, reg);
^~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c: In function 'cbqri_bc_alloc_op':
include/linux/compiler_types.h:706:38: error: call to '__compiletime_assert_262' declared with attribute error: FIELD_GET: mask is zero
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:687:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:69:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:97:3: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
__BF_FIELD_CHECK_MASK(mask, 0U, pfx); \
^~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:198:11: note: in expansion of macro 'FIELD_GET'
status = FIELD_GET(CBQRI_CONTROL_REGISTERS_STATUS_MASK, reg);
^~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c: In function 'cbqri_probe_feature.isra.7.constprop':
include/linux/compiler_types.h:706:38: error: call to '__compiletime_assert_272' declared with attribute error: FIELD_GET: mask is zero
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^
include/linux/compiler_types.h:687:4: note: in definition of macro '__compiletime_assert'
prefix ## suffix(); \
^~~~~~
include/linux/compiler_types.h:706:2: note: in expansion of macro '_compiletime_assert'
_compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
^~~~~~~~~~~~~~~~~~~
include/linux/build_bug.h:40:37: note: in expansion of macro 'compiletime_assert'
#define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
^~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:69:3: note: in expansion of macro 'BUILD_BUG_ON_MSG'
BUILD_BUG_ON_MSG((_mask) == 0, _pfx "mask is zero"); \
^~~~~~~~~~~~~~~~
include/linux/bitfield.h:97:3: note: in expansion of macro '__BF_FIELD_CHECK_MASK'
__BF_FIELD_CHECK_MASK(mask, 0U, pfx); \
^~~~~~~~~~~~~~~~~~~~~
include/linux/bitfield.h:178:3: note: in expansion of macro '__FIELD_GET'
__FIELD_GET(_mask, _reg, "FIELD_GET: "); \
^~~~~~~~~~~
arch/riscv/kernel/qos/qos_resctrl.c:269:12: note: in expansion of macro 'FIELD_GET'
*status = FIELD_GET(CBQRI_CONTROL_REGISTERS_STATUS_MASK, reg);
^~~~~~~~~
In function 'cbqri_probe_bc',
inlined from 'cbqri_probe_controller' at arch/riscv/kernel/qos/qos_resctrl.c:476:9,
vim +40 arch/riscv/kernel/qos/qos_resctrl.c
f059ca8e1b4643 Drew Fustini 2026-04-06 33
f059ca8e1b4643 Drew Fustini 2026-04-06 34 /* Set capacity block mask (cc_block_mask) */
f059ca8e1b4643 Drew Fustini 2026-04-06 35 static void cbqri_set_cbm(struct cbqri_controller *ctrl, u64 cbm)
f059ca8e1b4643 Drew Fustini 2026-04-06 36 {
f059ca8e1b4643 Drew Fustini 2026-04-06 37 int reg_offset;
f059ca8e1b4643 Drew Fustini 2026-04-06 38
f059ca8e1b4643 Drew Fustini 2026-04-06 39 reg_offset = CBQRI_CC_BLOCK_MASK_OFF;
f059ca8e1b4643 Drew Fustini 2026-04-06 @40 iowrite64(cbm, ctrl->base + reg_offset);
f059ca8e1b4643 Drew Fustini 2026-04-06 41 }
f059ca8e1b4643 Drew Fustini 2026-04-06 42
f059ca8e1b4643 Drew Fustini 2026-04-06 43 /* Set the Rbwb (reserved bandwidth blocks) field in bc_bw_alloc */
f059ca8e1b4643 Drew Fustini 2026-04-06 44 static void cbqri_set_rbwb(struct cbqri_controller *ctrl, u64 rbwb)
f059ca8e1b4643 Drew Fustini 2026-04-06 45 {
f059ca8e1b4643 Drew Fustini 2026-04-06 46 int reg_offset;
f059ca8e1b4643 Drew Fustini 2026-04-06 47 u64 reg;
f059ca8e1b4643 Drew Fustini 2026-04-06 48
f059ca8e1b4643 Drew Fustini 2026-04-06 49 reg_offset = CBQRI_BC_BW_ALLOC_OFF;
f059ca8e1b4643 Drew Fustini 2026-04-06 @50 reg = ioread64(ctrl->base + reg_offset);
f059ca8e1b4643 Drew Fustini 2026-04-06 51 reg &= ~CBQRI_CONTROL_REGISTERS_RBWB_MASK;
f059ca8e1b4643 Drew Fustini 2026-04-06 52 reg |= FIELD_PREP(CBQRI_CONTROL_REGISTERS_RBWB_MASK, rbwb);
f059ca8e1b4643 Drew Fustini 2026-04-06 53 iowrite64(reg, ctrl->base + reg_offset);
f059ca8e1b4643 Drew Fustini 2026-04-06 54 }
f059ca8e1b4643 Drew Fustini 2026-04-06 55
:::::: The code at line 40 was first introduced by commit
:::::: f059ca8e1b46435bda65e41248ff09ca7330c7f1 RISC-V: QoS: add CBQRI hardware interface
:::::: TO: Drew Fustini <fustini@kernel.org>
:::::: CC: Drew Fustini <fustini@kernel.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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