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Diffstat (limited to 'arch/x86/include/asm/uv/uv_hub.h')
-rw-r--r--arch/x86/include/asm/uv/uv_hub.h86
1 files changed, 48 insertions, 38 deletions
diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h
index 811bfabc80b7..bc54fa965af3 100644
--- a/arch/x86/include/asm/uv/uv_hub.h
+++ b/arch/x86/include/asm/uv/uv_hub.h
@@ -31,20 +31,20 @@
* contiguous (although various IO spaces may punch holes in
* it)..
*
- * N - Number of bits in the node portion of a socket physical
- * address.
+ * N - Number of bits in the node portion of a socket physical
+ * address.
*
- * NASID - network ID of a router, Mbrick or Cbrick. Nasid values of
- * routers always have low bit of 1, C/MBricks have low bit
- * equal to 0. Most addressing macros that target UV hub chips
- * right shift the NASID by 1 to exclude the always-zero bit.
- * NASIDs contain up to 15 bits.
+ * NASID - network ID of a router, Mbrick or Cbrick. Nasid values of
+ * routers always have low bit of 1, C/MBricks have low bit
+ * equal to 0. Most addressing macros that target UV hub chips
+ * right shift the NASID by 1 to exclude the always-zero bit.
+ * NASIDs contain up to 15 bits.
*
* GNODE - NASID right shifted by 1 bit. Most mmrs contain gnodes instead
* of nasids.
*
- * PNODE - the low N bits of the GNODE. The PNODE is the most useful variant
- * of the nasid for socket usage.
+ * PNODE - the low N bits of the GNODE. The PNODE is the most useful variant
+ * of the nasid for socket usage.
*
*
* NumaLink Global Physical Address Format:
@@ -71,12 +71,12 @@
*
*
* APICID format
- * NOTE!!!!!! This is the current format of the APICID. However, code
- * should assume that this will change in the future. Use functions
- * in this file for all APICID bit manipulations and conversion.
+ * NOTE!!!!!! This is the current format of the APICID. However, code
+ * should assume that this will change in the future. Use functions
+ * in this file for all APICID bit manipulations and conversion.
*
- * 1111110000000000
- * 5432109876543210
+ * 1111110000000000
+ * 5432109876543210
* pppppppppplc0cch
* sssssssssss
*
@@ -89,9 +89,9 @@
* Note: Processor only supports 12 bits in the APICID register. The ACPI
* tables hold all 16 bits. Software needs to be aware of this.
*
- * Unless otherwise specified, all references to APICID refer to
- * the FULL value contained in ACPI tables, not the subset in the
- * processor APICID register.
+ * Unless otherwise specified, all references to APICID refer to
+ * the FULL value contained in ACPI tables, not the subset in the
+ * processor APICID register.
*/
@@ -151,16 +151,16 @@ struct uv_hub_info_s {
};
DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
-#define uv_hub_info (&__get_cpu_var(__uv_hub_info))
+#define uv_hub_info (&__get_cpu_var(__uv_hub_info))
#define uv_cpu_hub_info(cpu) (&per_cpu(__uv_hub_info, cpu))
/*
* Local & Global MMR space macros.
- * Note: macros are intended to be used ONLY by inline functions
- * in this file - not by other kernel code.
- * n - NASID (full 15-bit global nasid)
- * g - GNODE (full 15-bit global nasid, right shifted 1)
- * p - PNODE (local part of nsids, right shifted 1)
+ * Note: macros are intended to be used ONLY by inline functions
+ * in this file - not by other kernel code.
+ * n - NASID (full 15-bit global nasid)
+ * g - GNODE (full 15-bit global nasid, right shifted 1)
+ * p - PNODE (local part of nsids, right shifted 1)
*/
#define UV_NASID_TO_PNODE(n) (((n) >> 1) & uv_hub_info->pnode_mask)
#define UV_PNODE_TO_GNODE(p) ((p) |uv_hub_info->gnode_extra)
@@ -215,8 +215,8 @@ DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
/*
* Macros for converting between kernel virtual addresses, socket local physical
* addresses, and UV global physical addresses.
- * Note: use the standard __pa() & __va() macros for converting
- * between socket virtual and socket physical addresses.
+ * Note: use the standard __pa() & __va() macros for converting
+ * between socket virtual and socket physical addresses.
*/
/* socket phys RAM --> UV global physical address */
@@ -287,21 +287,18 @@ static inline int uv_apicid_to_pnode(int apicid)
* Access global MMRs using the low memory MMR32 space. This region supports
* faster MMR access but not all MMRs are accessible in this space.
*/
-static inline unsigned long *uv_global_mmr32_address(int pnode,
- unsigned long offset)
+static inline unsigned long *uv_global_mmr32_address(int pnode, unsigned long offset)
{
return __va(UV_GLOBAL_MMR32_BASE |
UV_GLOBAL_MMR32_PNODE_BITS(pnode) | offset);
}
-static inline void uv_write_global_mmr32(int pnode, unsigned long offset,
- unsigned long val)
+static inline void uv_write_global_mmr32(int pnode, unsigned long offset, unsigned long val)
{
writeq(val, uv_global_mmr32_address(pnode, offset));
}
-static inline unsigned long uv_read_global_mmr32(int pnode,
- unsigned long offset)
+static inline unsigned long uv_read_global_mmr32(int pnode, unsigned long offset)
{
return readq(uv_global_mmr32_address(pnode, offset));
}
@@ -310,21 +307,18 @@ static inline unsigned long uv_read_global_mmr32(int pnode,
* Access Global MMR space using the MMR space located at the top of physical
* memory.
*/
-static inline unsigned long *uv_global_mmr64_address(int pnode,
- unsigned long offset)
+static inline unsigned long *uv_global_mmr64_address(int pnode, unsigned long offset)
{
return __va(UV_GLOBAL_MMR64_BASE |
UV_GLOBAL_MMR64_PNODE_BITS(pnode) | offset);
}
-static inline void uv_write_global_mmr64(int pnode, unsigned long offset,
- unsigned long val)
+static inline void uv_write_global_mmr64(int pnode, unsigned long offset, unsigned long val)
{
writeq(val, uv_global_mmr64_address(pnode, offset));
}
-static inline unsigned long uv_read_global_mmr64(int pnode,
- unsigned long offset)
+static inline unsigned long uv_read_global_mmr64(int pnode, unsigned long offset)
{
return readq(uv_global_mmr64_address(pnode, offset));
}
@@ -338,6 +332,16 @@ static inline unsigned long uv_global_gru_mmr_address(int pnode, unsigned long o
return UV_GLOBAL_GRU_MMR_BASE | offset | (pnode << uv_hub_info->m_val);
}
+static inline void uv_write_global_mmr8(int pnode, unsigned long offset, unsigned char val)
+{
+ writeb(val, uv_global_mmr64_address(pnode, offset));
+}
+
+static inline unsigned char uv_read_global_mmr8(int pnode, unsigned long offset)
+{
+ return readb(uv_global_mmr64_address(pnode, offset));
+}
+
/*
* Access hub local MMRs. Faster than using global space but only local MMRs
* are accessible.
@@ -457,11 +461,17 @@ static inline void uv_set_scir_bits(unsigned char value)
}
}
+static inline unsigned long uv_scir_offset(int apicid)
+{
+ return SCIR_LOCAL_MMR_BASE | (apicid & 0x3f);
+}
+
static inline void uv_set_cpu_scir_bits(int cpu, unsigned char value)
{
if (uv_cpu_hub_info(cpu)->scir.state != value) {
+ uv_write_global_mmr8(uv_cpu_to_pnode(cpu),
+ uv_cpu_hub_info(cpu)->scir.offset, value);
uv_cpu_hub_info(cpu)->scir.state = value;
- uv_write_local_mmr8(uv_cpu_hub_info(cpu)->scir.offset, value);
}
}
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-05 14:13:24 +0000