powerpc: Clean up lppaca->cede_latency_hint

We have a union containing fields from the old iseries hypervisor
that has been reused for the cede latency hint. Since we no
longer support iseries, remove the union completely.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

2 files changed, 5 insertions, 15 deletions

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index a76254af0aaa..bc4e37552948 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -107,19 +107,9 @@ struct lppaca {
         // pass the target SRR0/1 from SLIC to PLIC on a SetAsrAndRfid.
         u64     saved_srr0;             // Saved SRR0                   x10-x17
         u64     saved_srr1;             // Saved SRR1                   x18-x1F
-
-        // Used to pass parms from the OS to PLIC for SetAsrAndRfid
-        u64     saved_gpr3;             // Saved GPR3                   x20-x27
-        u64     saved_gpr4;             // Saved GPR4                   x28-x2F
-        union {
-                u64     saved_gpr5;     /* Saved GPR5               x30-x37 */
-                struct {
-                        u8      cede_latency_hint;  /*                  x30 */
-                        u8      reserved[7];        /*              x31-x36 */
-                } fields;
-        } gpr5_dword;
-
-
+        u64     reserved5[2];           /*                          x20-x2F */
+        u8      cede_latency_hint;      /*                              x30 */
+        u8      reserved[7];            /*                          x31-x37 */
         u8      dtl_enable_mask;        // Dispatch Trace Log mask      x38-x38
         u8      donate_dedicated_cpu;   // Donate dedicated CPU cycles  x39-x39
         u8      fpregs_in_use;          // FP regs in use               x3A-x3A
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 342797fc0f9c..13e8cc43adf7 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -22,12 +22,12 @@ static inline long poll_pending(void)
 
 static inline u8 get_cede_latency_hint(void)
 {
-        return get_lppaca()->gpr5_dword.fields.cede_latency_hint;
+        return get_lppaca()->cede_latency_hint;
 }
 
 static inline void set_cede_latency_hint(u8 latency_hint)
 {
-        get_lppaca()->gpr5_dword.fields.cede_latency_hint = latency_hint;
+        get_lppaca()->cede_latency_hint = latency_hint;
 }
 
 static inline long cede_processor(void)