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lib: utils/irqchip: Add unique_id to plic, aplic, and imsic data

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Add a 32-bit unique ID to plic, aplic, and imsic data which can be
used to differentiate multiple irqchip devices.

Signed-off-by: Anup Patel <anup.patel@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260213055342.3124872-7-anup.patel@oss.qualcomm.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Anup Patel
2026-02-13 11:23:40 +05:30
committed by Anup Patel
parent b55bb4cdcb
commit e82d20122d
9 changed files with 11 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
include/sbi_utils/irqchip/aplic.h
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@@ -35,6 +35,7 @@ struct aplic_data {
struct sbi_irqchip_device irqchip; struct sbi_irqchip_device irqchip;
struct sbi_dlist node; struct sbi_dlist node;
/* Public members */ /* Public members */
u32 unique_id;
unsigned long addr; unsigned long addr;
unsigned long size; unsigned long size;
unsigned long num_idc; unsigned long num_idc;

1
include/sbi_utils/irqchip/imsic.h
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@@ -24,6 +24,7 @@ struct imsic_regs {
}; };
struct imsic_data { struct imsic_data {
u32 unique_id;
bool targets_mmode; bool targets_mmode;
u32 guest_index_bits; u32 guest_index_bits;
u32 hart_index_bits; u32 hart_index_bits;

1
include/sbi_utils/irqchip/plic.h
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@@ -17,6 +17,7 @@ struct plic_data {
/* Private members */ /* Private members */
struct sbi_irqchip_device irqchip; struct sbi_irqchip_device irqchip;
/* Public members */ /* Public members */
u32 unique_id;
unsigned long addr; unsigned long addr;
unsigned long size; unsigned long size;
unsigned long num_src; unsigned long num_src;

3
lib/utils/fdt/fdt_helper.c
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@@ -673,6 +673,7 @@ int fdt_parse_aplic_node(const void *fdt, int nodeoff, struct aplic_data *aplic)
rc = fdt_get_node_addr_size(fdt, nodeoff, 0, &reg_addr, &reg_size); rc = fdt_get_node_addr_size(fdt, nodeoff, 0, &reg_addr, &reg_size);
if (rc < 0 || !reg_size) if (rc < 0 || !reg_size)
return SBI_ENODEV; return SBI_ENODEV;
aplic->unique_id = nodeoff;
aplic->addr = reg_addr; aplic->addr = reg_addr;
aplic->size = reg_size; aplic->size = reg_size;
@@ -805,6 +806,7 @@ int fdt_parse_imsic_node(const void *fdt, int nodeoff, struct imsic_data *imsic)
if (nodeoff < 0 || !imsic || !fdt) if (nodeoff < 0 || !imsic || !fdt)
return SBI_ENODEV; return SBI_ENODEV;
imsic->unique_id = nodeoff;
imsic->targets_mmode = false; imsic->targets_mmode = false;
val = fdt_getprop(fdt, nodeoff, "interrupts-extended", &len); val = fdt_getprop(fdt, nodeoff, "interrupts-extended", &len);
if (val && len > sizeof(fdt32_t)) { if (val && len > sizeof(fdt32_t)) {
@@ -887,6 +889,7 @@ int fdt_parse_plic_node(const void *fdt, int nodeoffset, struct plic_data *plic)
&reg_addr, &reg_size); &reg_addr, &reg_size);
if (rc < 0 || !reg_size) if (rc < 0 || !reg_size)
return SBI_ENODEV; return SBI_ENODEV;
plic->unique_id = nodeoffset;
plic->addr = reg_addr; plic->addr = reg_addr;
plic->size = reg_size; plic->size = reg_size;

1
platform/generic/openhwgroup/ariane.c
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@@ -24,6 +24,7 @@
CLINT_MTIMER_OFFSET) CLINT_MTIMER_OFFSET)
static struct plic_data plic = { static struct plic_data plic = {
.unique_id = 0,
.addr = ARIANE_PLIC_ADDR, .addr = ARIANE_PLIC_ADDR,
.size = ARIANE_PLIC_SIZE, .size = ARIANE_PLIC_SIZE,
.num_src = ARIANE_PLIC_NUM_SOURCES, .num_src = ARIANE_PLIC_NUM_SOURCES,

1
platform/generic/openhwgroup/openpiton.c
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@@ -23,6 +23,7 @@
(OPENPITON_DEFAULT_CLINT_ADDR + CLINT_MTIMER_OFFSET) (OPENPITON_DEFAULT_CLINT_ADDR + CLINT_MTIMER_OFFSET)
static struct plic_data plic = { static struct plic_data plic = {
.unique_id = 0,
.addr = (unsigned long)OPENPITON_DEFAULT_PLIC_ADDR, .addr = (unsigned long)OPENPITON_DEFAULT_PLIC_ADDR,
.size = OPENPITON_DEFAULT_PLIC_SIZE, .size = OPENPITON_DEFAULT_PLIC_SIZE,
.num_src = OPENPITON_DEFAULT_PLIC_NUM_SOURCES, .num_src = OPENPITON_DEFAULT_PLIC_NUM_SOURCES,

1
platform/kendryte/k210/platform.c
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@@ -30,6 +30,7 @@ unsigned long fw_platform_init(unsigned long arg0, unsigned long arg1,
} }
static struct plic_data plic = { static struct plic_data plic = {
.unique_id = 0,
.addr = K210_PLIC_BASE_ADDR, .addr = K210_PLIC_BASE_ADDR,
.size = K210_PLIC_BASE_SIZE, .size = K210_PLIC_BASE_SIZE,
.num_src = K210_PLIC_NUM_SOURCES, .num_src = K210_PLIC_NUM_SOURCES,

1
platform/nuclei/ux600/platform.c
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@@ -63,6 +63,7 @@
static u32 ux600_clk_freq = 8000000; static u32 ux600_clk_freq = 8000000;
static struct plic_data plic = { static struct plic_data plic = {
.unique_id = 0,
.addr = UX600_PLIC_ADDR, .addr = UX600_PLIC_ADDR,
.size = UX600_PLIC_SIZE, .size = UX600_PLIC_SIZE,
.num_src = UX600_PLIC_NUM_SOURCES, .num_src = UX600_PLIC_NUM_SOURCES,

1
platform/template/platform.c
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@@ -34,6 +34,7 @@
#define PLATFORM_UART_BAUDRATE 115200 #define PLATFORM_UART_BAUDRATE 115200
static struct plic_data plic = { static struct plic_data plic = {
.unique_id = 0,
.addr = PLATFORM_PLIC_ADDR, .addr = PLATFORM_PLIC_ADDR,
.size = PLATFORM_PLIC_SIZE, .size = PLATFORM_PLIC_SIZE,
.num_src = PLATFORM_PLIC_NUM_SOURCES, .num_src = PLATFORM_PLIC_NUM_SOURCES,