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hw/core/register: Add more 64-bit utilities

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We already have some utilities to handle 64-bit wide registers, so this just
adds some more for:
- Initializing 64-bit registers
- Extracting and depositing to an array of 64-bit registers

Signed-off-by: Joe Komlodi <joe.komlodi@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 1626805903-162860-2-git-send-email-joe.komlodi@xilinx.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Joe Komlodi 2021-07-20 11:31:42 -07:00 committed by Alistair Francis
parent 4dc06bb816
commit 4d63ef20cf
3 changed files with 28 additions and 0 deletions
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12
hw/core/register.c
View file

@ -300,6 +300,18 @@ RegisterInfoArray *register_init_block32(DeviceState *owner,
data, ops, debug_enabled, memory_size, 32);
}
RegisterInfoArray *register_init_block64(DeviceState *owner,
const RegisterAccessInfo *rae,
int num, RegisterInfo *ri,
uint64_t *data,
const MemoryRegionOps *ops,
bool debug_enabled,
uint64_t memory_size)
{
return register_init_block(owner, rae, num, ri, (void *)
data, ops, debug_enabled, memory_size, 64);
}
void register_finalize_block(RegisterInfoArray *r_array)
{
object_unparent(OBJECT(&r_array->mem));

8
include/hw/register.h
View file

@ -204,6 +204,14 @@ RegisterInfoArray *register_init_block32(DeviceState *owner,
bool debug_enabled,
uint64_t memory_size);
RegisterInfoArray *register_init_block64(DeviceState *owner,
const RegisterAccessInfo *rae,
int num, RegisterInfo *ri,
uint64_t *data,
const MemoryRegionOps *ops,
bool debug_enabled,
uint64_t memory_size);
/**
* This function should be called to cleanup the registers that were initialized
* when calling register_init_block32(). This function should only be called

8
include/hw/registerfields.h
View file

@ -30,6 +30,10 @@
enum { A_ ## reg = (addr) }; \
enum { R_ ## reg = (addr) / 2 };
#define REG64(reg, addr) \
enum { A_ ## reg = (addr) }; \
enum { R_ ## reg = (addr) / 8 };
/* Define SHIFT, LENGTH and MASK constants for a field within a register */
/* This macro will define R_FOO_BAR_MASK, R_FOO_BAR_SHIFT and R_FOO_BAR_LENGTH
@ -58,6 +62,8 @@
/* Extract a field from an array of registers */
#define ARRAY_FIELD_EX32(regs, reg, field) \
FIELD_EX32((regs)[R_ ## reg], reg, field)
#define ARRAY_FIELD_EX64(regs, reg, field) \
FIELD_EX64((regs)[R_ ## reg], reg, field)
/* Deposit a register field.
* Assigning values larger then the target field will result in
@ -99,5 +105,7 @@
/* Deposit a field to array of registers. */
#define ARRAY_FIELD_DP32(regs, reg, field, val) \
(regs)[R_ ## reg] = FIELD_DP32((regs)[R_ ## reg], reg, field, val);
#define ARRAY_FIELD_DP64(regs, reg, field, val) \
(regs)[R_ ## reg] = FIELD_DP64((regs)[R_ ## reg], reg, field, val);
#endif