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irqchip/gic-v3-its: Use FIELD_MODIFY()

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Use FIELD_MODIFY() to remove open-coded bit manipulation.

No functional change intended.

Signed-off-by: Hans Zhang <18255117159@163.com>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260430162954.44156-1-18255117159@163.com
This commit is contained in:
Hans Zhang 2026-05-01 00:29:54 +08:00 committed by Thomas Gleixner
parent 2ee2a685ee
commit 5fd6f21547
1 changed files with 4 additions and 8 deletions
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12
drivers/irqchip/irq-gic-v3-its.c
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@ -4784,8 +4784,7 @@ static bool __maybe_unused its_enable_quirk_cavium_22375(void *data)
struct its_node *its = data;
/* erratum 22375: only alloc 8MB table size (20 bits) */
its->typer &= ~GITS_TYPER_DEVBITS;
its->typer |= FIELD_PREP(GITS_TYPER_DEVBITS, 20 - 1);
FIELD_MODIFY(GITS_TYPER_DEVBITS, &its->typer, 20 - 1);
its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_22375;
return true;
@ -4805,8 +4804,7 @@ static bool __maybe_unused its_enable_quirk_qdf2400_e0065(void *data)
struct its_node *its = data;
/* On QDF2400, the size of the ITE is 16Bytes */
its->typer &= ~GITS_TYPER_ITT_ENTRY_SIZE;
its->typer |= FIELD_PREP(GITS_TYPER_ITT_ENTRY_SIZE, 16 - 1);
FIELD_MODIFY(GITS_TYPER_ITT_ENTRY_SIZE, &its->typer, 16 - 1);
return true;
}
@ -4840,10 +4838,8 @@ static bool __maybe_unused its_enable_quirk_socionext_synquacer(void *data)
its->get_msi_base = its_irq_get_msi_base_pre_its;
ids = ilog2(pre_its_window[1]) - 2;
if (device_ids(its) > ids) {
its->typer &= ~GITS_TYPER_DEVBITS;
its->typer |= FIELD_PREP(GITS_TYPER_DEVBITS, ids - 1);
}
if (device_ids(its) > ids)
FIELD_MODIFY(GITS_TYPER_DEVBITS, &its->typer, ids - 1);
/* the pre-ITS breaks isolation, so disable MSI remapping */
its->msi_domain_flags &= ~IRQ_DOMAIN_FLAG_ISOLATED_MSI;