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diff --git a/sys/amd64/include/resource.h b/sys/amd64/include/resource.h
--- a/sys/amd64/include/resource.h
+++ b/sys/amd64/include/resource.h
@@ -40,5 +40,6 @@
#define SYS_RES_MEMORY 3 /* i/o memory */
#define SYS_RES_IOPORT 4 /* i/o ports */
#define PCI_RES_BUS 5 /* PCI bus numbers */
+#define SYS_RES_FFH 6 /* FFixedhardware */
#endif /* !_MACHINE_RESOURCE_H_ */
diff --git a/sys/conf/files.amd64 b/sys/conf/files.amd64
--- a/sys/conf/files.amd64
+++ b/sys/conf/files.amd64
@@ -403,6 +403,7 @@
# config(8) doesn't have a way to force standard options, so we've been inconsistent
# about marking non-optional things 'standard'.
x86/acpica/madt.c optional acpi
+x86/acpica/acpi_cppc_platform.c optional acpi
x86/isa/atpic.c optional atpic isa
x86/isa/elcr.c optional atpic isa | mptable
x86/isa/isa.c standard
diff --git a/sys/x86/acpica/acpi_cppc_platform.c b/sys/x86/acpica/acpi_cppc_platform.c
new file mode 100644
--- /dev/null
+++ b/sys/x86/acpica/acpi_cppc_platform.c
@@ -0,0 +1,32 @@
+#include <sys/cdefs.h>
+#include <sys/param.h>
+#include <sys/bus.h>
+#include <sys/cpu.h>
+#include <sys/rman.h>
+
+#include <machine/acpica_machdep.h>
+#include <machine/bus.h>
+
+#include <contrib/dev/acpica/include/acpi.h>
+
+#include <dev/acpica/acpivar.h>
+
+register_t
+acpi_ffh_read(device_t dev, struct resource *res)
+{
+#ifdef __amd64__
+ return bus_read_8(res, cpu_get_pcpu(dev)->pc_cpuid);
+#else
+ return bus_read_4(res, cpu_get_pcpu(dev)->pc_cpuid);
+#endif
+}
+
+void
+acpi_ffh_write(device_t dev, struct resource *res, register_t val)
+{
+#ifdef __amd64__
+ bus_write_8(res, cpu_get_pcpu(dev)->pc_cpuid, val);
+#else
+ bus_write_4(res, cpu_get_pcpu(dev)->pc_cpuid, val);
+#endif
+}
diff --git a/sys/x86/include/bus.h b/sys/x86/include/bus.h
--- a/sys/x86/include/bus.h
+++ b/sys/x86/include/bus.h
@@ -98,14 +98,16 @@
#define _MACHINE_BUS_H_
#include <machine/_bus.h>
-#include <machine/cpufunc.h>
#include <machine/bus_dma.h>
+#include <machine/cpufunc.h>
+#include <machine/md_var.h>
/*
* Values for the x86 bus space tag, not to be used directly by MI code.
*/
#define X86_BUS_SPACE_IO 0 /* space is i/o space */
#define X86_BUS_SPACE_MEM 1 /* space is mem space */
+#define X86_BUS_SPACE_FFH 2 /* space is mem space */
#define BUS_SPACE_MAXSIZE_24BIT 0xFFFFFF
#define BUS_SPACE_MAXSIZE_32BIT 0xFFFFFFFF
@@ -214,7 +216,8 @@
bus_space_read_1(bus_space_tag_t tag, bus_space_handle_t handle,
bus_size_t offset)
{
-
+ if (tag == X86_BUS_SPACE_FFH)
+ return (BUS_SPACE_INVALID_DATA);
if (tag == X86_BUS_SPACE_IO)
return (inb(handle + offset));
return (*(volatile u_int8_t *)(handle + offset));
@@ -224,7 +227,8 @@
bus_space_read_2(bus_space_tag_t tag, bus_space_handle_t handle,
bus_size_t offset)
{
-
+ if (tag == X86_BUS_SPACE_FFH)
+ return (BUS_SPACE_INVALID_DATA);
if (tag == X86_BUS_SPACE_IO)
return (inw(handle + offset));
return (*(volatile u_int16_t *)(handle + offset));
@@ -234,7 +238,8 @@
bus_space_read_4(bus_space_tag_t tag, bus_space_handle_t handle,
bus_size_t offset)
{
-
+ if (tag == X86_BUS_SPACE_FFH)
+ return (BUS_SPACE_INVALID_DATA);
if (tag == X86_BUS_SPACE_IO)
return (inl(handle + offset));
return (*(volatile u_int32_t *)(handle + offset));
@@ -245,9 +250,16 @@
bus_space_read_8(bus_space_tag_t tag, bus_space_handle_t handle,
bus_size_t offset)
{
+ uint64_t res;
if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */
return (BUS_SPACE_INVALID_DATA);
+ if (tag == X86_BUS_SPACE_FFH) {
+ x86_msr_op(handle,
+ MSR_OP_RENDEZVOUS_ONE | MSR_OP_READ | MSR_OP_CPUID(offset),
+ 0, &res);
+ return (res);
+ }
return (*(volatile uint64_t *)(handle + offset));
}
#endif
@@ -278,7 +290,7 @@
if (tag == X86_BUS_SPACE_IO)
insb(bsh + offset, addr, count);
- else {
+ else if (tag == X86_BUS_SPACE_MEM) {
__asm __volatile(" \n\
1: movb (%2),%%al \n\
stosb \n\
@@ -296,7 +308,7 @@
if (tag == X86_BUS_SPACE_IO)
insw(bsh + offset, addr, count);
- else {
+ else if (tag == X86_BUS_SPACE_MEM) {
__asm __volatile(" \n\
1: movw (%2),%%ax \n\
stosw \n\
@@ -314,7 +326,7 @@
if (tag == X86_BUS_SPACE_IO)
insl(bsh + offset, addr, count);
- else {
+ else if (tag == X86_BUS_SPACE_MEM) {
__asm __volatile(" \n\
1: movl (%2),%%eax \n\
stosl \n\
@@ -364,7 +376,7 @@
"=D" (addr), "=c" (count), "=d" (_port_) :
"0" (addr), "1" (count), "2" (_port_) :
"%eax", "memory", "cc");
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
bus_space_handle_t _port_ = bsh + offset;
__asm __volatile(" \n\
repne \n\
@@ -390,7 +402,7 @@
"=D" (addr), "=c" (count), "=d" (_port_) :
"0" (addr), "1" (count), "2" (_port_) :
"%eax", "memory", "cc");
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
bus_space_handle_t _port_ = bsh + offset;
__asm __volatile(" \n\
repne \n\
@@ -416,7 +428,7 @@
"=D" (addr), "=c" (count), "=d" (_port_) :
"0" (addr), "1" (count), "2" (_port_) :
"%eax", "memory", "cc");
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
bus_space_handle_t _port_ = bsh + offset;
__asm __volatile(" \n\
repne \n\
@@ -461,7 +473,7 @@
if (tag == X86_BUS_SPACE_IO)
outb(bsh + offset, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
*(volatile u_int8_t *)(bsh + offset) = value;
}
@@ -472,7 +484,7 @@
if (tag == X86_BUS_SPACE_IO)
outw(bsh + offset, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
*(volatile u_int16_t *)(bsh + offset) = value;
}
@@ -483,7 +495,7 @@
if (tag == X86_BUS_SPACE_IO)
outl(bsh + offset, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
*(volatile u_int32_t *)(bsh + offset) = value;
}
@@ -495,6 +507,10 @@
if (tag == X86_BUS_SPACE_IO) /* No 8 byte IO space access on x86 */
return;
+ else if (tag == X86_BUS_SPACE_FFH)
+ x86_msr_op(bsh,
+ MSR_OP_RENDEZVOUS_ONE | MSR_OP_WRITE | MSR_OP_CPUID(offset),
+ value, NULL);
else
*(volatile uint64_t *)(bsh + offset) = value;
}
@@ -529,7 +545,7 @@
if (tag == X86_BUS_SPACE_IO)
outsb(bsh + offset, addr, count);
- else {
+ else if (tag == X86_BUS_SPACE_MEM) {
__asm __volatile(" \n\
1: lodsb \n\
movb %%al,(%2) \n\
@@ -547,7 +563,7 @@
if (tag == X86_BUS_SPACE_IO)
outsw(bsh + offset, addr, count);
- else {
+ else if (tag == X86_BUS_SPACE_MEM) {
__asm __volatile(" \n\
1: lodsw \n\
movw %%ax,(%2) \n\
@@ -565,7 +581,7 @@
if (tag == X86_BUS_SPACE_IO)
outsl(bsh + offset, addr, count);
- else {
+ else if (tag == X86_BUS_SPACE_MEM) {
__asm __volatile(" \n\
1: lodsl \n\
movl %%eax,(%2) \n\
@@ -617,7 +633,7 @@
"=d" (_port_), "=S" (addr), "=c" (count) :
"0" (_port_), "1" (addr), "2" (count) :
"%eax", "memory", "cc");
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
bus_space_handle_t _port_ = bsh + offset;
__asm __volatile(" \n\
repne \n\
@@ -643,7 +659,7 @@
"=d" (_port_), "=S" (addr), "=c" (count) :
"0" (_port_), "1" (addr), "2" (count) :
"%eax", "memory", "cc");
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
bus_space_handle_t _port_ = bsh + offset;
__asm __volatile(" \n\
repne \n\
@@ -669,7 +685,7 @@
"=d" (_port_), "=S" (addr), "=c" (count) :
"0" (_port_), "1" (addr), "2" (count) :
"%eax", "memory", "cc");
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
bus_space_handle_t _port_ = bsh + offset;
__asm __volatile(" \n\
repne \n\
@@ -712,7 +728,7 @@
if (tag == X86_BUS_SPACE_IO)
while (count--)
outb(addr, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
while (count--)
*(volatile u_int8_t *)(addr) = value;
}
@@ -776,7 +792,7 @@
if (tag == X86_BUS_SPACE_IO)
for (; count != 0; count--, addr++)
outb(addr, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
for (; count != 0; count--, addr++)
*(volatile u_int8_t *)(addr) = value;
}
@@ -790,7 +806,7 @@
if (tag == X86_BUS_SPACE_IO)
for (; count != 0; count--, addr += 2)
outw(addr, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
for (; count != 0; count--, addr += 2)
*(volatile u_int16_t *)(addr) = value;
}
@@ -804,7 +820,7 @@
if (tag == X86_BUS_SPACE_IO)
for (; count != 0; count--, addr += 4)
outl(addr, value);
- else
+ else if (tag == X86_BUS_SPACE_MEM)
for (; count != 0; count--, addr += 4)
*(volatile u_int32_t *)(addr) = value;
}
@@ -855,7 +871,7 @@
count != 0; count--, addr1--, addr2--)
outb(addr2, inb(addr1));
}
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
if (addr1 >= addr2) {
/* src after dest: copy forward */
for (; count != 0; count--, addr1++, addr2++)
@@ -890,7 +906,7 @@
count != 0; count--, addr1 -= 2, addr2 -= 2)
outw(addr2, inw(addr1));
}
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
if (addr1 >= addr2) {
/* src after dest: copy forward */
for (; count != 0; count--, addr1 += 2, addr2 += 2)
@@ -925,7 +941,7 @@
count != 0; count--, addr1 -= 4, addr2 -= 4)
outl(addr2, inl(addr1));
}
- } else {
+ } else if (tag == X86_BUS_SPACE_MEM) {
if (addr1 >= addr2) {
/* src after dest: copy forward */
for (; count != 0; count--, addr1 += 4, addr2 += 4)
diff --git a/sys/x86/x86/nexus.c b/sys/x86/x86/nexus.c
--- a/sys/x86/x86/nexus.c
+++ b/sys/x86/x86/nexus.c
@@ -85,7 +85,7 @@
#define DEVTONX(dev) ((struct nexus_device *)device_get_ivars(dev))
-struct rman irq_rman, drq_rman, port_rman, mem_rman;
+struct rman irq_rman, drq_rman, port_rman, mem_rman, ffh_rman;
static int nexus_print_all_resources(device_t dev);
@@ -253,6 +253,14 @@
if (rman_init(&mem_rman)
|| rman_manage_region(&mem_rman, 0, mem_rman.rm_end))
panic("nexus_init_resources mem_rman");
+
+ ffh_rman.rm_start = 0;
+ ffh_rman.rm_end = 0xffffffff;
+ ffh_rman.rm_type = RMAN_ARRAY;
+ ffh_rman.rm_descr = "FFH (MSR)";
+ if (rman_init(&ffh_rman) ||
+ rman_manage_region(&ffh_rman, 0, 0xffffffff))
+ panic("nexus_init_resources ffg_rman");
}
static int
@@ -286,6 +294,7 @@
retval += resource_list_print_type(rl, "port", SYS_RES_IOPORT, "%#jx");
retval += resource_list_print_type(rl, "iomem", SYS_RES_MEMORY, "%#jx");
retval += resource_list_print_type(rl, "irq", SYS_RES_IRQ, "%jd");
+ retval += resource_list_print_type(rl, "ffh", SYS_RES_FFH, "%jd");
return (retval);
}
@@ -335,6 +344,8 @@
return (&port_rman);
case SYS_RES_MEMORY:
return (&mem_rman);
+ case SYS_RES_FFH:
+ return (&ffh_rman);
default:
return (NULL);
}
@@ -385,11 +396,13 @@
if (!(rman_get_flags(r) & RF_ACTIVE))
return (ENXIO);
- /* Mappings are only supported on I/O and memory resources. */
+ /* Mappings are only supported on I/O, memory and FFixedhardware
+ * resources. */
type = rman_get_type(r);
switch (type) {
case SYS_RES_IOPORT:
case SYS_RES_MEMORY:
+ case SYS_RES_FFH:
break;
default:
return (EINVAL);
@@ -420,6 +433,11 @@
*/
map->r_bushandle = (bus_space_handle_t)map->r_vaddr;
break;
+ case SYS_RES_FFH:
+ map->r_bushandle = start;
+ map->r_bustag = X86_BUS_SPACE_FFH;
+ map->r_size = length;
+ break;
}
return (0);
}
@@ -436,6 +454,7 @@
case SYS_RES_MEMORY:
pmap_unmapdev(map->r_vaddr, map->r_size);
/* FALLTHROUGH */
+ case SYS_RES_FFH:
case SYS_RES_IOPORT:
break;
default:

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