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authorLinus Torvalds <torvalds@linux-foundation.org>2022-10-14 11:21:11 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-10-14 11:21:11 -0700
commit498574970fc968ee17cfea9e6959b78c094c00a5 (patch)
treea6db665b72965cf64329e1983b2d9c972805504f /arch/riscv/errata/thead/errata.c
parent70609c1495ae64e6534d8db7d6280dd7c79de815 (diff)
parentab0c23b535f3f9d8345d8ad4c18c0a8594459d55 (diff)
Merge tag 'riscv-for-linus-6.1-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt: - DT updates for the PolarFire SOC - a fix to correct the handling of write-only mappings - m{vetndor,arcd,imp}id is now in /proc/cpuinfo - the SiFive L2 cache controller support has been refactored to also support L3 caches - misc fixes, cleanups and improvements throughout the tree * tag 'riscv-for-linus-6.1-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (42 commits) MAINTAINERS: add RISC-V's patchwork RISC-V: Make port I/O string accessors actually work riscv: enable software resend of irqs RISC-V: Re-enable counter access from userspace riscv: vdso: fix NULL deference in vdso_join_timens() when vfork riscv: Add cache information in AUX vector soc: sifive: ccache: define the macro for the register shifts soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes soc: sifive: ccache: reduce printing on init soc: sifive: ccache: determine the cache level from dts soc: sifive: ccache: Rename SiFive L2 cache to Composable cache. dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache riscv: check for kernel config option in t-head memory types errata riscv: use BIT() marco for cpufeature probing riscv: use BIT() macros in t-head errata init riscv: drop some idefs from CMO initialization riscv: cleanup svpbmt cpufeature probing riscv: Pass -mno-relax only on lld < 15.0.0 RISC-V: Avoid dereferening NULL regs in die() dt-bindings: riscv: add new riscv,isa strings for emulators ...
Diffstat (limited to 'arch/riscv/errata/thead/errata.c')
-rw-r--r--arch/riscv/errata/thead/errata.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/riscv/errata/thead/errata.c b/arch/riscv/errata/thead/errata.c
index 96648c176f37..21546937db39 100644
--- a/arch/riscv/errata/thead/errata.c
+++ b/arch/riscv/errata/thead/errata.c
@@ -17,6 +17,9 @@
static bool errata_probe_pbmt(unsigned int stage,
unsigned long arch_id, unsigned long impid)
{
+ if (!IS_ENABLED(CONFIG_ERRATA_THEAD_PBMT))
+ return false;
+
if (arch_id != 0 || impid != 0)
return false;
@@ -30,7 +33,9 @@ static bool errata_probe_pbmt(unsigned int stage,
static bool errata_probe_cmo(unsigned int stage,
unsigned long arch_id, unsigned long impid)
{
-#ifdef CONFIG_ERRATA_THEAD_CMO
+ if (!IS_ENABLED(CONFIG_ERRATA_THEAD_CMO))
+ return false;
+
if (arch_id != 0 || impid != 0)
return false;
@@ -40,9 +45,6 @@ static bool errata_probe_cmo(unsigned int stage,
riscv_cbom_block_size = L1_CACHE_BYTES;
riscv_noncoherent_supported();
return true;
-#else
- return false;
-#endif
}
static u32 thead_errata_probe(unsigned int stage,
@@ -51,10 +53,10 @@ static u32 thead_errata_probe(unsigned int stage,
u32 cpu_req_errata = 0;
if (errata_probe_pbmt(stage, archid, impid))
- cpu_req_errata |= (1U << ERRATA_THEAD_PBMT);
+ cpu_req_errata |= BIT(ERRATA_THEAD_PBMT);
if (errata_probe_cmo(stage, archid, impid))
- cpu_req_errata |= (1U << ERRATA_THEAD_CMO);
+ cpu_req_errata |= BIT(ERRATA_THEAD_CMO);
return cpu_req_errata;
}