5.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jiaxun Yang jiaxun.yang@flygoat.com
[ Upstream commit f641519409a73403ee6612b8648b95a688ab85c2 ]
cpu_has_octeon_cache was tied to 0 for generic cpu-features, whith this generic kernel built for octeon CPU won't boot.
Just enable this flag by cpu_type. It won't hurt orther platforms because compiler will eliminate the code path on other processors.
Signed-off-by: Jiaxun Yang jiaxun.yang@flygoat.com Signed-off-by: Thomas Bogendoerfer tsbogend@alpha.franken.de Stable-dep-of: 5487a7b60695 ("MIPS: cpu-features: Use boot_cpu_type for CPU type based features") Signed-off-by: Sasha Levin sashal@kernel.org --- arch/mips/include/asm/cpu-features.h | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/arch/mips/include/asm/cpu-features.h b/arch/mips/include/asm/cpu-features.h index 3e26b0c7391b8..b72887e033082 100644 --- a/arch/mips/include/asm/cpu-features.h +++ b/arch/mips/include/asm/cpu-features.h @@ -124,7 +124,24 @@ #define cpu_has_tx39_cache __opt(MIPS_CPU_TX39_CACHE) #endif #ifndef cpu_has_octeon_cache -#define cpu_has_octeon_cache 0 +#define cpu_has_octeon_cache \ +({ \ + int __res; \ + \ + switch (current_cpu_type()) { \ + case CPU_CAVIUM_OCTEON: \ + case CPU_CAVIUM_OCTEON_PLUS: \ + case CPU_CAVIUM_OCTEON2: \ + case CPU_CAVIUM_OCTEON3: \ + __res = 1; \ + break; \ + \ + default: \ + __res = 0; \ + } \ + \ + __res; \ +}) #endif /* Don't override `cpu_has_fpu' to 1 or the "nofpu" option won't work. */ #ifndef cpu_has_fpu