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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 16/57] ARM: GICv3: rename HYP interface definitions to use ICH_ prefix
On a GICv3 in non-compat mode the hypervisor interface is always
accessed via system registers. Those register names have a "ICH_" prefix
in the manual, to differentiate them from the MMIO registers. Also those
registers are mostly 64-bit (compared to the 32-bit GICv2 registers) and
use different bit assignments.
To make this obvious and to avoid clashes with double definitions using
the same names for actually different bits, lets change all GICv3
hypervisor interface registers to use the "ICH_" prefix from the manual.
This renames the definitions in gic_v3_defs.h and their usage in gic-v3.c
and is needed to allow co-existence of the GICv2 and GICv3 definitions
in the same file.
Signed-off-by: Andre Przywara <andre.przywara@xxxxxxxxxx>
---
Changelog RFC ... v1:
- new patch
xen/arch/arm/gic-v3.c | 48 +++++++++++++++++++-------------------
xen/include/asm-arm/gic_v3_defs.h | 49 +++++++++++++++++++--------------------
2 files changed, 48 insertions(+), 49 deletions(-)
diff --git a/xen/arch/arm/gic-v3.c b/xen/arch/arm/gic-v3.c
index ea14ab4028..3e381d031b 100644
--- a/xen/arch/arm/gic-v3.c
+++ b/xen/arch/arm/gic-v3.c
@@ -830,14 +830,14 @@ static void gicv3_hyp_init(void)
uint32_t vtr;
vtr = READ_SYSREG32(ICH_VTR_EL2);
- gicv3_info.nr_lrs = (vtr & GICH_VTR_NRLRGS) + 1;
- gicv3.nr_priorities = ((vtr >> GICH_VTR_PRIBITS_SHIFT) &
- GICH_VTR_PRIBITS_MASK) + 1;
+ gicv3_info.nr_lrs = (vtr & ICH_VTR_NRLRGS) + 1;
+ gicv3.nr_priorities = ((vtr >> ICH_VTR_PRIBITS_SHIFT) &
+ ICH_VTR_PRIBITS_MASK) + 1;
if ( !((gicv3.nr_priorities > 4) && (gicv3.nr_priorities < 8)) )
panic("GICv3: Invalid number of priority bits\n");
- WRITE_SYSREG32(GICH_VMCR_EOI | GICH_VMCR_VENG1, ICH_VMCR_EL2);
+ WRITE_SYSREG32(ICH_VMCR_EOI | ICH_VMCR_VENG1, ICH_VMCR_EL2);
WRITE_SYSREG32(GICH_HCR_EN, ICH_HCR_EL2);
}
@@ -976,21 +976,21 @@ static void gicv3_update_lr(int lr, unsigned int virq,
uint8_t priority,
BUG_ON(lr >= gicv3_info.nr_lrs);
BUG_ON(lr < 0);
- val = (((uint64_t)state & 0x3) << GICH_LR_STATE_SHIFT);
+ val = (((uint64_t)state & 0x3) << ICH_LR_STATE_SHIFT);
/*
* When the guest is GICv3, all guest IRQs are Group 1, as Group0
* would result in a FIQ in the guest, which it wouldn't expect
*/
if ( current->domain->arch.vgic.version == GIC_V3 )
- val |= GICH_LR_GRP1;
+ val |= ICH_LR_GRP1;
- val |= (uint64_t)priority << GICH_LR_PRIORITY_SHIFT;
- val |= ((uint64_t)virq & GICH_LR_VIRTUAL_MASK) << GICH_LR_VIRTUAL_SHIFT;
+ val |= (uint64_t)priority << ICH_LR_PRIORITY_SHIFT;
+ val |= ((uint64_t)virq & ICH_LR_VIRTUAL_MASK) << ICH_LR_VIRTUAL_SHIFT;
if ( hw_irq != INVALID_IRQ )
- val |= GICH_LR_HW | (((uint64_t)hw_irq & GICH_LR_PHYSICAL_MASK)
- << GICH_LR_PHYSICAL_SHIFT);
+ val |= ICH_LR_HW | (((uint64_t)hw_irq & ICH_LR_PHYSICAL_MASK)
+ << ICH_LR_PHYSICAL_SHIFT);
gicv3_ich_write_lr(lr, val);
}
@@ -1006,25 +1006,25 @@ static void gicv3_read_lr(int lr, struct gic_lr *lr_reg)
lrv = gicv3_ich_read_lr(lr);
- lr_reg->pirq = (lrv >> GICH_LR_PHYSICAL_SHIFT) & GICH_LR_PHYSICAL_MASK;
- lr_reg->virq = (lrv >> GICH_LR_VIRTUAL_SHIFT) & GICH_LR_VIRTUAL_MASK;
+ lr_reg->pirq = (lrv >> ICH_LR_PHYSICAL_SHIFT) & ICH_LR_PHYSICAL_MASK;
+ lr_reg->virq = (lrv >> ICH_LR_VIRTUAL_SHIFT) & ICH_LR_VIRTUAL_MASK;
- lr_reg->priority = (lrv >> GICH_LR_PRIORITY_SHIFT) &
GICH_LR_PRIORITY_MASK;
- lr_reg->state = (lrv >> GICH_LR_STATE_SHIFT) & GICH_LR_STATE_MASK;
- lr_reg->hw_status = (lrv >> GICH_LR_HW_SHIFT) & GICH_LR_HW_MASK;
- lr_reg->grp = (lrv >> GICH_LR_GRP_SHIFT) & GICH_LR_GRP_MASK;
+ lr_reg->priority = (lrv >> ICH_LR_PRIORITY_SHIFT) & ICH_LR_PRIORITY_MASK;
+ lr_reg->state = (lrv >> ICH_LR_STATE_SHIFT) & ICH_LR_STATE_MASK;
+ lr_reg->hw_status = (lrv >> ICH_LR_HW_SHIFT) & ICH_LR_HW_MASK;
+ lr_reg->grp = (lrv >> ICH_LR_GRP_SHIFT) & ICH_LR_GRP_MASK;
}
static void gicv3_write_lr(int lr_reg, const struct gic_lr *lr)
{
uint64_t lrv = 0;
- lrv = ( ((u64)(lr->pirq & GICH_LR_PHYSICAL_MASK) <<
GICH_LR_PHYSICAL_SHIFT)|
- ((u64)(lr->virq & GICH_LR_VIRTUAL_MASK) << GICH_LR_VIRTUAL_SHIFT) |
- ((u64)(lr->priority & GICH_LR_PRIORITY_MASK) <<
GICH_LR_PRIORITY_SHIFT)|
- ((u64)(lr->state & GICH_LR_STATE_MASK) << GICH_LR_STATE_SHIFT) |
- ((u64)(lr->hw_status & GICH_LR_HW_MASK) << GICH_LR_HW_SHIFT) |
- ((u64)(lr->grp & GICH_LR_GRP_MASK) << GICH_LR_GRP_SHIFT) );
+ lrv = ( ((u64)(lr->pirq & ICH_LR_PHYSICAL_MASK) << ICH_LR_PHYSICAL_SHIFT)|
+ ((u64)(lr->virq & ICH_LR_VIRTUAL_MASK) << ICH_LR_VIRTUAL_SHIFT) |
+ ((u64)(lr->priority & ICH_LR_PRIORITY_MASK) << ICH_LR_PRIORITY_SHIFT)|
+ ((u64)(lr->state & ICH_LR_STATE_MASK) << ICH_LR_STATE_SHIFT) |
+ ((u64)(lr->hw_status & ICH_LR_HW_MASK) << ICH_LR_HW_SHIFT) |
+ ((u64)(lr->grp & ICH_LR_GRP_MASK) << ICH_LR_GRP_SHIFT) );
gicv3_ich_write_lr(lr_reg, lrv);
}
@@ -1043,8 +1043,8 @@ static void gicv3_hcr_status(uint32_t flag, bool status)
static unsigned int gicv3_read_vmcr_priority(void)
{
- return ((READ_SYSREG32(ICH_VMCR_EL2) >> GICH_VMCR_PRIORITY_SHIFT) &
- GICH_VMCR_PRIORITY_MASK);
+ return ((READ_SYSREG32(ICH_VMCR_EL2) >> ICH_VMCR_PRIORITY_SHIFT) &
+ ICH_VMCR_PRIORITY_MASK);
}
/* Only support reading GRP1 APRn registers */
diff --git a/xen/include/asm-arm/gic_v3_defs.h
b/xen/include/asm-arm/gic_v3_defs.h
index 412e41afed..947de5162d 100644
--- a/xen/include/asm-arm/gic_v3_defs.h
+++ b/xen/include/asm-arm/gic_v3_defs.h
@@ -160,31 +160,30 @@
#define LPI_PROP_RES1 (1 << 1)
#define LPI_PROP_ENABLED (1 << 0)
-#define GICH_VMCR_EOI (1 << 9)
-#define GICH_VMCR_VENG1 (1 << 1)
-
-#define GICH_LR_VIRTUAL_MASK 0xffff
-#define GICH_LR_VIRTUAL_SHIFT 0
-#define GICH_LR_PHYSICAL_MASK 0x3ff
-#define GICH_LR_PHYSICAL_SHIFT 32
-#define GICH_LR_STATE_MASK 0x3
-#define GICH_LR_STATE_SHIFT 62
-#define GICH_LR_PRIORITY_MASK 0xff
-#define GICH_LR_PRIORITY_SHIFT 48
-#define GICH_LR_HW_MASK 0x1
-#define GICH_LR_HW_SHIFT 61
-#define GICH_LR_GRP_MASK 0x1
-#define GICH_LR_GRP_SHIFT 60
-#define GICH_LR_MAINTENANCE_IRQ (1UL<<41)
-#define GICH_LR_GRP1 (1UL<<60)
-#define GICH_LR_HW (1UL<<61)
-
-#define GICH_VTR_NRLRGS 0x3f
-#define GICH_VTR_PRIBITS_MASK 0x7
-#define GICH_VTR_PRIBITS_SHIFT 29
-
-#define GICH_VMCR_PRIORITY_MASK 0xff
-#define GICH_VMCR_PRIORITY_SHIFT 24
+#define ICH_VMCR_EOI (1 << 9)
+#define ICH_VMCR_VENG1 (1 << 1)
+#define ICH_VMCR_PRIORITY_MASK 0xff
+#define ICH_VMCR_PRIORITY_SHIFT 24
+
+#define ICH_LR_VIRTUAL_MASK 0xffff
+#define ICH_LR_VIRTUAL_SHIFT 0
+#define ICH_LR_PHYSICAL_MASK 0x3ff
+#define ICH_LR_PHYSICAL_SHIFT 32
+#define ICH_LR_STATE_MASK 0x3
+#define ICH_LR_STATE_SHIFT 62
+#define ICH_LR_PRIORITY_MASK 0xff
+#define ICH_LR_PRIORITY_SHIFT 48
+#define ICH_LR_HW_MASK 0x1
+#define ICH_LR_HW_SHIFT 61
+#define ICH_LR_GRP_MASK 0x1
+#define ICH_LR_GRP_SHIFT 60
+#define ICH_LR_MAINTENANCE_IRQ (1UL<<41)
+#define ICH_LR_GRP1 (1UL<<60)
+#define ICH_LR_HW (1UL<<61)
+
+#define ICH_VTR_NRLRGS 0x3f
+#define ICH_VTR_PRIBITS_MASK 0x7
+#define ICH_VTR_PRIBITS_SHIFT 29
#define ICH_SGI_IRQMODE_SHIFT 40
#define ICH_SGI_IRQMODE_MASK 0x1
--
2.14.1
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