irqchip/gic-v3: Refactor and add GICv3 definitions

arm-gic-v3.h contains bit and register definitions for the GICv3 and ITS,
at least for the bits the we currently care about.
The ITS emulation needs more definitions, so add them and refactor
the memory attribute #defines to be more universally usable.
To avoid changing all users, we still provide some of the old definitons
defined with the help of the new macros.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

diff --git a/include/linux/irqchip/arm-gic-v3.h b/include/linux/irqchip/arm-gic-v3.h
index bfbd707..9442be7 100644 (file)
--- a/include/linux/irqchip/arm-gic-v3.h
+++ b/include/linux/irqchip/arm-gic-v3.h
@@ -112,34 +112,60 @@
 #define GICR_WAKER_ProcessorSleep      (1U << 1)
 #define GICR_WAKER_ChildrenAsleep      (1U << 2)
 
-#define GICR_PROPBASER_NonShareable    (0U << 10)
-#define GICR_PROPBASER_InnerShareable  (1U << 10)
-#define GICR_PROPBASER_OuterShareable  (2U << 10)
-#define GICR_PROPBASER_SHAREABILITY_MASK (3UL << 10)
-#define GICR_PROPBASER_nCnB            (0U << 7)
-#define GICR_PROPBASER_nC              (1U << 7)
-#define GICR_PROPBASER_RaWt            (2U << 7)
-#define GICR_PROPBASER_RaWb            (3U << 7)
-#define GICR_PROPBASER_WaWt            (4U << 7)
-#define GICR_PROPBASER_WaWb            (5U << 7)
-#define GICR_PROPBASER_RaWaWt          (6U << 7)
-#define GICR_PROPBASER_RaWaWb          (7U << 7)
-#define GICR_PROPBASER_CACHEABILITY_MASK (7U << 7)
-#define GICR_PROPBASER_IDBITS_MASK     (0x1f)
-
-#define GICR_PENDBASER_NonShareable    (0U << 10)
-#define GICR_PENDBASER_InnerShareable  (1U << 10)
-#define GICR_PENDBASER_OuterShareable  (2U << 10)
-#define GICR_PENDBASER_SHAREABILITY_MASK (3UL << 10)
-#define GICR_PENDBASER_nCnB            (0U << 7)
-#define GICR_PENDBASER_nC              (1U << 7)
-#define GICR_PENDBASER_RaWt            (2U << 7)
-#define GICR_PENDBASER_RaWb            (3U << 7)
-#define GICR_PENDBASER_WaWt            (4U << 7)
-#define GICR_PENDBASER_WaWb            (5U << 7)
-#define GICR_PENDBASER_RaWaWt          (6U << 7)
-#define GICR_PENDBASER_RaWaWb          (7U << 7)
-#define GICR_PENDBASER_CACHEABILITY_MASK (7U << 7)
+#define GIC_BASER_CACHE_nCnB           0ULL
+#define GIC_BASER_CACHE_SameAsInner    0ULL
+#define GIC_BASER_CACHE_nC             1ULL
+#define GIC_BASER_CACHE_RaWt           2ULL
+#define GIC_BASER_CACHE_RaWb           3ULL
+#define GIC_BASER_CACHE_WaWt           4ULL
+#define GIC_BASER_CACHE_WaWb           5ULL
+#define GIC_BASER_CACHE_RaWaWt         6ULL
+#define GIC_BASER_CACHE_RaWaWb         7ULL
+#define GIC_BASER_CACHE_MASK           7ULL
+#define GIC_BASER_NonShareable         0ULL
+#define GIC_BASER_InnerShareable       1ULL
+#define GIC_BASER_OuterShareable       2ULL
+#define GIC_BASER_SHAREABILITY_MASK    3ULL
+
+#define GIC_BASER_CACHEABILITY(reg, inner_outer, type)                 \
+       (GIC_BASER_CACHE_##type << reg##_##inner_outer##_CACHEABILITY_SHIFT)
+
+#define GIC_BASER_SHAREABILITY(reg, type)                              \
+       (GIC_BASER_##type << reg##_SHAREABILITY_SHIFT)
+
+#define GICR_PROPBASER_SHAREABILITY_SHIFT              (10)
+#define GICR_PROPBASER_INNER_CACHEABILITY_SHIFT                (7)
+#define GICR_PROPBASER_OUTER_CACHEABILITY_SHIFT                (56)
+#define GICR_PROPBASER_SHAREABILITY_MASK                               \
+       GIC_BASER_SHAREABILITY(GICR_PROPBASER, SHAREABILITY_MASK)
+#define GICR_PROPBASER_INNER_CACHEABILITY_MASK                         \
+       GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, MASK)
+#define GICR_PROPBASER_OUTER_CACHEABILITY_MASK                         \
+       GIC_BASER_CACHEABILITY(GICR_PROPBASER, OUTER, MASK)
+#define GICR_PROPBASER_CACHEABILITY_MASK GICR_PROPBASER_INNER_CACHEABILITY_MASK
+
+#define GICR_PROPBASER_InnerShareable                                  \
+       GIC_BASER_SHAREABILITY(GICR_PROPBASER, InnerShareable)
+#define GICR_PROPBASER_nC GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, nC)
+#define GICR_PROPBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PROPBASER, INNER, WaWb)
+#define GICR_PROPBASER_IDBITS_MASK                     (0x1f)
+
+#define GICR_PENDBASER_SHAREABILITY_SHIFT              (10)
+#define GICR_PENDBASER_INNER_CACHEABILITY_SHIFT                (7)
+#define GICR_PENDBASER_OUTER_CACHEABILITY_SHIFT                (56)
+#define GICR_PENDBASER_SHAREABILITY_MASK                               \
+       GIC_BASER_SHAREABILITY(GICR_PENDBASER, SHAREABILITY_MASK)
+#define GICR_PENDBASER_INNER_CACHEABILITY_MASK                         \
+       GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, MASK)
+#define GICR_PENDBASER_OUTER_CACHEABILITY_MASK                         \
+       GIC_BASER_CACHEABILITY(GICR_PENDBASER, OUTER, MASK)
+#define GICR_PENDBASER_CACHEABILITY_MASK GICR_PENDBASER_INNER_CACHEABILITY_MASK
+
+#define GICR_PENDBASER_InnerShareable                                  \
+       GIC_BASER_SHAREABILITY(GICR_PENDBASER, InnerShareable)
+#define GICR_PENDBASER_nC GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, nC)
+#define GICR_PENDBASER_WaWb GIC_BASER_CACHEABILITY(GICR_PENDBASER, INNER, WaWb)
+#define GICR_PENDBASER_PTZ                             BIT_ULL(62)
 
 /*
  * Re-Distributor registers, offsets from SGI_base
@@ -175,59 +201,74 @@
 #define GITS_CWRITER                   0x0088
 #define GITS_CREADR                    0x0090
 #define GITS_BASER                     0x0100
+#define GITS_IDREGS_BASE               0xffd0
+#define GITS_PIDR0                     0xffe0
+#define GITS_PIDR1                     0xffe4
 #define GITS_PIDR2                     GICR_PIDR2
+#define GITS_PIDR4                     0xffd0
+#define GITS_CIDR0                     0xfff0
+#define GITS_CIDR1                     0xfff4
+#define GITS_CIDR2                     0xfff8
+#define GITS_CIDR3                     0xfffc
 
 #define GITS_TRANSLATER                        0x10040
 
 #define GITS_CTLR_ENABLE               (1U << 0)
 #define GITS_CTLR_QUIESCENT            (1U << 31)
 
+#define GITS_TYPER_PLPIS               (1UL << 0)
+#define GITS_TYPER_IDBITS_SHIFT                8
 #define GITS_TYPER_DEVBITS_SHIFT       13
 #define GITS_TYPER_DEVBITS(r)          ((((r) >> GITS_TYPER_DEVBITS_SHIFT) & 0x1f) + 1)
 #define GITS_TYPER_PTA                 (1UL << 19)
-
-#define GITS_CBASER_VALID              (1UL << 63)
-#define GITS_CBASER_nCnB               (0UL << 59)
-#define GITS_CBASER_nC                 (1UL << 59)
-#define GITS_CBASER_RaWt               (2UL << 59)
-#define GITS_CBASER_RaWb               (3UL << 59)
-#define GITS_CBASER_WaWt               (4UL << 59)
-#define GITS_CBASER_WaWb               (5UL << 59)
-#define GITS_CBASER_RaWaWt             (6UL << 59)
-#define GITS_CBASER_RaWaWb             (7UL << 59)
-#define GITS_CBASER_CACHEABILITY_MASK  (7UL << 59)
-#define GITS_CBASER_NonShareable       (0UL << 10)
-#define GITS_CBASER_InnerShareable     (1UL << 10)
-#define GITS_CBASER_OuterShareable     (2UL << 10)
-#define GITS_CBASER_SHAREABILITY_MASK  (3UL << 10)
+#define GITS_TYPER_HWCOLLCNT_SHIFT     24
+
+#define GITS_CBASER_VALID                      (1UL << 63)
+#define GITS_CBASER_SHAREABILITY_SHIFT         (10)
+#define GITS_CBASER_INNER_CACHEABILITY_SHIFT   (59)
+#define GITS_CBASER_OUTER_CACHEABILITY_SHIFT   (53)
+#define GITS_CBASER_SHAREABILITY_MASK                                  \
+       GIC_BASER_SHAREABILITY(GITS_CBASER, SHAREABILITY_MASK)
+#define GITS_CBASER_INNER_CACHEABILITY_MASK                            \
+       GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, MASK)
+#define GITS_CBASER_OUTER_CACHEABILITY_MASK                            \
+       GIC_BASER_CACHEABILITY(GITS_CBASER, OUTER, MASK)
+#define GITS_CBASER_CACHEABILITY_MASK GITS_CBASER_INNER_CACHEABILITY_MASK
+
+#define GITS_CBASER_InnerShareable                                     \
+       GIC_BASER_SHAREABILITY(GITS_CBASER, InnerShareable)
+#define GITS_CBASER_nC GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, nC)
+#define GITS_CBASER_WaWb GIC_BASER_CACHEABILITY(GITS_CBASER, INNER, WaWb)
 
 #define GITS_BASER_NR_REGS             8
 
-#define GITS_BASER_VALID               (1UL << 63)
-#define GITS_BASER_nCnB                        (0UL << 59)
-#define GITS_BASER_nC                  (1UL << 59)
-#define GITS_BASER_RaWt                        (2UL << 59)
-#define GITS_BASER_RaWb                        (3UL << 59)
-#define GITS_BASER_WaWt                        (4UL << 59)
-#define GITS_BASER_WaWb                        (5UL << 59)
-#define GITS_BASER_RaWaWt              (6UL << 59)
-#define GITS_BASER_RaWaWb              (7UL << 59)
-#define GITS_BASER_CACHEABILITY_MASK   (7UL << 59)
-#define GITS_BASER_TYPE_SHIFT          (56)
+#define GITS_BASER_VALID                       (1UL << 63)
+#define GITS_BASER_INDIRECT                    (1ULL << 62)
+#define GITS_BASER_INNER_CACHEABILITY_SHIFT    (59)
+#define GITS_BASER_OUTER_CACHEABILITY_SHIFT    (53)
+#define GITS_BASER_INNER_CACHEABILITY_MASK                             \
+       GIC_BASER_CACHEABILITY(GITS_BASER, INNER, MASK)
+#define GITS_BASER_OUTER_CACHEABILITY_MASK                             \
+       GIC_BASER_CACHEABILITY(GITS_BASER, OUTER, MASK)
+#define GITS_BASER_SHAREABILITY_MASK                                   \
+       GIC_BASER_SHAREABILITY(GITS_BASER, SHAREABILITY_MASK)
+
+#define GITS_BASER_nC GIC_BASER_CACHEABILITY(GITS_BASER, INNER, nC)
+#define GITS_BASER_WaWb GIC_BASER_CACHEABILITY(GITS_BASER, INNER, WaWb)
+#define GITS_BASER_TYPE_SHIFT                  (56)
 #define GITS_BASER_TYPE(r)             (((r) >> GITS_BASER_TYPE_SHIFT) & 7)
-#define GITS_BASER_ENTRY_SIZE_SHIFT    (48)
+#define GITS_BASER_ENTRY_SIZE_SHIFT            (48)
 #define GITS_BASER_ENTRY_SIZE(r)       ((((r) >> GITS_BASER_ENTRY_SIZE_SHIFT) & 0xff) + 1)
-#define GITS_BASER_NonShareable                (0UL << 10)
-#define GITS_BASER_InnerShareable      (1UL << 10)
-#define GITS_BASER_OuterShareable      (2UL << 10)
 #define GITS_BASER_SHAREABILITY_SHIFT  (10)
-#define GITS_BASER_SHAREABILITY_MASK   (3UL << GITS_BASER_SHAREABILITY_SHIFT)
+#define GITS_BASER_InnerShareable                                      \
+       GIC_BASER_SHAREABILITY(GITS_BASER, InnerShareable)
 #define GITS_BASER_PAGE_SIZE_SHIFT     (8)
 #define GITS_BASER_PAGE_SIZE_4K                (0UL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGE_SIZE_16K       (1UL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGE_SIZE_64K       (2UL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGE_SIZE_MASK      (3UL << GITS_BASER_PAGE_SIZE_SHIFT)
 #define GITS_BASER_PAGES_MAX           256
+#define GITS_BASER_NR_PAGES(r)         (((r) & 0xff) + 1)
 
 #define GITS_BASER_TYPE_NONE           0
 #define GITS_BASER_TYPE_DEVICE         1
@@ -243,7 +284,10 @@
  */
 #define GITS_CMD_MAPD                  0x08
 #define GITS_CMD_MAPC                  0x09
-#define GITS_CMD_MAPVI                 0x0a
+#define GITS_CMD_MAPTI                 0x0a
+/* older GIC documentation used MAPVI for this command */
+#define GITS_CMD_MAPVI                 GITS_CMD_MAPTI
+#define GITS_CMD_MAPI                  0x0b
 #define GITS_CMD_MOVI                  0x01
 #define GITS_CMD_DISCARD               0x0f
 #define GITS_CMD_INV                   0x0c
@@ -253,6 +297,22 @@
 #define GITS_CMD_CLEAR                 0x04
 #define GITS_CMD_SYNC                  0x05
 
+/*
+ * ITS error numbers
+ */
+#define E_ITS_MOVI_UNMAPPED_INTERRUPT          0x010107
+#define E_ITS_MOVI_UNMAPPED_COLLECTION         0x010109
+#define E_ITS_CLEAR_UNMAPPED_INTERRUPT         0x010507
+#define E_ITS_MAPD_DEVICE_OOR                  0x010801
+#define E_ITS_MAPC_PROCNUM_OOR                 0x010902
+#define E_ITS_MAPC_COLLECTION_OOR              0x010903
+#define E_ITS_MAPTI_UNMAPPED_DEVICE            0x010a04
+#define E_ITS_MAPTI_PHYSICALID_OOR             0x010a06
+#define E_ITS_INV_UNMAPPED_INTERRUPT           0x010c07
+#define E_ITS_INVALL_UNMAPPED_COLLECTION       0x010d09
+#define E_ITS_MOVALL_PROCNUM_OOR               0x010e01
+#define E_ITS_DISCARD_UNMAPPED_INTERRUPT       0x010f07
+
 /*
  * CPU interface registers
  */