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authorMichael Neuling <mikey@neuling.org>2016-02-19 01:16:24 +0100
committerMichael Ellerman <mpe@ellerman.id.au>2016-02-22 10:47:48 +0100
commitc3ab300ea55541014348561e7690c41c79966ac6 (patch)
treec90043fdbcad91399df1af7b0da04d062db5ca92 /arch/powerpc/kernel/mce_power.c
parentpowerpc: Use defines for __init_tlb_power[78] (diff)
downloadlinux-c3ab300ea55541014348561e7690c41c79966ac6.tar.xz
linux-c3ab300ea55541014348561e7690c41c79966ac6.zip
powerpc: Add POWER9 cputable entry
Add a cputable entry for POWER9. More code is required to actually boot and run on a POWER9 but this gets the base piece in which we can start building on. Copies over from POWER8 except for: - Adds a new CPU_FTR_ARCH_300 bit to start hanging new architecture features from (in subsequent patches). - Advertises new user features bits PPC_FEATURE2_ARCH_3_00 & HAS_IEEE128 when on POWER9. - Drops CPU_FTR_SUBCORE. - Drops PMU code and machine check. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/mce_power.c')
-rw-r--r--arch/powerpc/kernel/mce_power.c17
1 files changed, 8 insertions, 9 deletions
diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c
index 2c647b1e62e4..ee62b197502d 100644
--- a/arch/powerpc/kernel/mce_power.c
+++ b/arch/powerpc/kernel/mce_power.c
@@ -54,8 +54,8 @@ static void flush_tlb_206(unsigned int num_sets, unsigned int action)
}
/*
- * Generic routine to flush TLB on power7. This routine is used as
- * flush_tlb hook in cpu_spec for Power7 processor.
+ * Generic routines to flush TLB on POWER processors. These routines
+ * are used as flush_tlb hook in the cpu_spec.
*
* action => TLB_INVAL_SCOPE_GLOBAL: Invalidate all TLBs.
* TLB_INVAL_SCOPE_LPID: Invalidate TLB for current LPID.
@@ -65,18 +65,17 @@ void __flush_tlb_power7(unsigned int action)
flush_tlb_206(POWER7_TLB_SETS, action);
}
-/*
- * Generic routine to flush TLB on power8. This routine is used as
- * flush_tlb hook in cpu_spec for power8 processor.
- *
- * action => TLB_INVAL_SCOPE_GLOBAL: Invalidate all TLBs.
- * TLB_INVAL_SCOPE_LPID: Invalidate TLB for current LPID.
- */
void __flush_tlb_power8(unsigned int action)
{
flush_tlb_206(POWER8_TLB_SETS, action);
}
+void __flush_tlb_power9(unsigned int action)
+{
+ flush_tlb_206(POWER9_TLB_SETS_HASH, action);
+}
+
+
/* flush SLBs and reload */
static void flush_and_reload_slb(void)
{