hw/intc/arm_gic: Drop GIC_BASE_IRQ macro

The GIC_BASE_IRQ macro is a leftover from when we shared code
between the GICv2 and the v7M NVIC. Since the NVIC is now
split off, GIC_BASE_IRQ is always 0, and we can just delete it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20180824161819.11085-1-peter.maydell@linaro.org

hw/intc/arm_gic.c

@@ -955,7 +955,7 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
             res = 0;
             if (!(s->security_extn && !attrs.secure) && gic_has_groups(s)) {
                 /* Every byte offset holds 8 group status bits */
-                irq = (offset - 0x080) * 8 + GIC_BASE_IRQ;
+                irq = (offset - 0x080) * 8;
                 if (irq >= s->num_irq) {
                     goto bad_reg;
                 }
@@ -974,7 +974,6 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
             irq = (offset - 0x100) * 8;
         else
             irq = (offset - 0x180) * 8;
-        irq += GIC_BASE_IRQ;
         if (irq >= s->num_irq)
             goto bad_reg;
         res = 0;
@@ -994,7 +993,6 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
             irq = (offset - 0x200) * 8;
         else
             irq = (offset - 0x280) * 8;
-        irq += GIC_BASE_IRQ;
         if (irq >= s->num_irq)
             goto bad_reg;
         res = 0;
@@ -1019,7 +1017,6 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
             goto bad_reg;
         }
 
-        irq += GIC_BASE_IRQ;
         if (irq >= s->num_irq)
             goto bad_reg;
         res = 0;
@@ -1036,7 +1033,7 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
         }
     } else if (offset < 0x800) {
         /* Interrupt Priority.  */
-        irq = (offset - 0x400) + GIC_BASE_IRQ;
+        irq = (offset - 0x400);
         if (irq >= s->num_irq)
             goto bad_reg;
         res = gic_dist_get_priority(s, cpu, irq, attrs);
@@ -1046,7 +1043,7 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
             /* For uniprocessor GICs these RAZ/WI */
             res = 0;
         } else {
-            irq = (offset - 0x800) + GIC_BASE_IRQ;
+            irq = (offset - 0x800);
             if (irq >= s->num_irq) {
                 goto bad_reg;
             }
@@ -1060,7 +1057,7 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset, MemTxAttrs attrs)
         }
     } else if (offset < 0xf00) {
         /* Interrupt Configuration.  */
-        irq = (offset - 0xc00) * 4 + GIC_BASE_IRQ;
+        irq = (offset - 0xc00) * 4;
         if (irq >= s->num_irq)
             goto bad_reg;
         res = 0;
@@ -1183,7 +1180,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
              */
             if (!(s->security_extn && !attrs.secure) && gic_has_groups(s)) {
                 /* Every byte offset holds 8 group status bits */
-                irq = (offset - 0x80) * 8 + GIC_BASE_IRQ;
+                irq = (offset - 0x80) * 8;
                 if (irq >= s->num_irq) {
                     goto bad_reg;
                 }
@@ -1204,7 +1201,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         }
     } else if (offset < 0x180) {
         /* Interrupt Set Enable.  */
-        irq = (offset - 0x100) * 8 + GIC_BASE_IRQ;
+        irq = (offset - 0x100) * 8;
         if (irq >= s->num_irq)
             goto bad_reg;
         if (irq < GIC_NR_SGIS) {
@@ -1239,7 +1236,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         }
     } else if (offset < 0x200) {
         /* Interrupt Clear Enable.  */
-        irq = (offset - 0x180) * 8 + GIC_BASE_IRQ;
+        irq = (offset - 0x180) * 8;
         if (irq >= s->num_irq)
             goto bad_reg;
         if (irq < GIC_NR_SGIS) {
@@ -1264,7 +1261,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         }
     } else if (offset < 0x280) {
         /* Interrupt Set Pending.  */
-        irq = (offset - 0x200) * 8 + GIC_BASE_IRQ;
+        irq = (offset - 0x200) * 8;
         if (irq >= s->num_irq)
             goto bad_reg;
         if (irq < GIC_NR_SGIS) {
@@ -1283,7 +1280,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         }
     } else if (offset < 0x300) {
         /* Interrupt Clear Pending.  */
-        irq = (offset - 0x280) * 8 + GIC_BASE_IRQ;
+        irq = (offset - 0x280) * 8;
         if (irq >= s->num_irq)
             goto bad_reg;
         if (irq < GIC_NR_SGIS) {
@@ -1309,7 +1306,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
             goto bad_reg;
         }
 
-        irq = (offset - 0x300) * 8 + GIC_BASE_IRQ;
+        irq = (offset - 0x300) * 8;
         if (irq >= s->num_irq) {
             goto bad_reg;
         }
@@ -1333,7 +1330,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
             goto bad_reg;
         }
 
-        irq = (offset - 0x380) * 8 + GIC_BASE_IRQ;
+        irq = (offset - 0x380) * 8;
         if (irq >= s->num_irq) {
             goto bad_reg;
         }
@@ -1353,7 +1350,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         }
     } else if (offset < 0x800) {
         /* Interrupt Priority.  */
-        irq = (offset - 0x400) + GIC_BASE_IRQ;
+        irq = (offset - 0x400);
         if (irq >= s->num_irq)
             goto bad_reg;
         gic_dist_set_priority(s, cpu, irq, value, attrs);
@@ -1362,7 +1359,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
          * annoying exception of the 11MPCore's GIC.
          */
         if (s->num_cpu != 1 || s->revision == REV_11MPCORE) {
-            irq = (offset - 0x800) + GIC_BASE_IRQ;
+            irq = (offset - 0x800);
             if (irq >= s->num_irq) {
                 goto bad_reg;
             }
@@ -1375,7 +1372,7 @@ static void gic_dist_writeb(void *opaque, hwaddr offset,
         }
     } else if (offset < 0xf00) {
         /* Interrupt Configuration.  */
-        irq = (offset - 0xc00) * 4 + GIC_BASE_IRQ;
+        irq = (offset - 0xc00) * 4;
         if (irq >= s->num_irq)
             goto bad_reg;
         if (irq < GIC_NR_SGIS)

hw/intc/arm_gic_common.c

@@ -191,7 +191,6 @@ static void arm_gic_common_realize(DeviceState *dev, Error **errp)
                    s->num_cpu, GIC_NCPU);
         return;
     }
-    s->num_irq += GIC_BASE_IRQ;
     if (s->num_irq > GIC_MAXIRQ) {
         error_setg(errp,
                    "requested %u interrupt lines exceeds GIC maximum %d",

hw/intc/gic_internal.h

@@ -26,8 +26,6 @@
 
 #define ALL_CPU_MASK ((unsigned)(((1 << GIC_NCPU) - 1)))
 
-#define GIC_BASE_IRQ 0
-
 #define GIC_DIST_SET_ENABLED(irq, cm) (s->irq_state[irq].enabled |= (cm))
 #define GIC_DIST_CLEAR_ENABLED(irq, cm) (s->irq_state[irq].enabled &= ~(cm))
 #define GIC_DIST_TEST_ENABLED(irq, cm) ((s->irq_state[irq].enabled & (cm)) != 0)