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Diffstat (limited to 'arch/x86/include/asm/uv/uv_bau.h')
-rw-r--r--arch/x86/include/asm/uv/uv_bau.h82
1 files changed, 57 insertions, 25 deletions
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
index 57ab86d94d64..7cac79802ad2 100644
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ b/arch/x86/include/asm/uv/uv_bau.h
@@ -185,6 +185,15 @@
#define MSG_REGULAR 1
#define MSG_RETRY 2
+#define BAU_DESC_QUALIFIER 0x534749
+
+enum uv_bau_version {
+ UV_BAU_V1 = 1,
+ UV_BAU_V2,
+ UV_BAU_V3,
+ UV_BAU_V4,
+};
+
/*
* Distribution: 32 bytes (256 bits) (bytes 0-0x1f of descriptor)
* If the 'multilevel' flag in the header portion of the descriptor
@@ -222,20 +231,32 @@ struct bau_local_cpumask {
* the s/w ack bit vector ]
*/
-/*
- * The payload is software-defined for INTD transactions
+/**
+ * struct uv1_2_3_bau_msg_payload - defines payload for INTD transactions
+ * @address: Signifies a page or all TLB's of the cpu
+ * @sending_cpu: CPU from which the message originates
+ * @acknowledge_count: CPUs on the destination Hub that received the interrupt
*/
-struct bau_msg_payload {
- unsigned long address; /* signifies a page or all
- TLB's of the cpu */
- /* 64 bits */
- unsigned short sending_cpu; /* filled in by sender */
- /* 16 bits */
- unsigned short acknowledge_count; /* filled in by destination */
- /* 16 bits */
- unsigned int reserved1:32; /* not usable */
+struct uv1_2_3_bau_msg_payload {
+ u64 address;
+ u16 sending_cpu;
+ u16 acknowledge_count;
};
+/**
+ * struct uv4_bau_msg_payload - defines payload for INTD transactions
+ * @address: Signifies a page or all TLB's of the cpu
+ * @sending_cpu: CPU from which the message originates
+ * @acknowledge_count: CPUs on the destination Hub that received the interrupt
+ * @qualifier: Set by source to verify origin of INTD broadcast
+ */
+struct uv4_bau_msg_payload {
+ u64 address;
+ u16 sending_cpu;
+ u16 acknowledge_count;
+ u32 reserved:8;
+ u32 qualifier:24;
+};
/*
* UV1 Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor)
@@ -385,17 +406,6 @@ struct uv2_3_bau_msg_header {
/* bits 127:120 */
};
-/* Abstracted BAU functions */
-struct bau_operations {
- unsigned long (*read_l_sw_ack)(void);
- unsigned long (*read_g_sw_ack)(int pnode);
- unsigned long (*bau_gpa_to_offset)(unsigned long vaddr);
- void (*write_l_sw_ack)(unsigned long mmr);
- void (*write_g_sw_ack)(int pnode, unsigned long mmr);
- void (*write_payload_first)(int pnode, unsigned long mmr);
- void (*write_payload_last)(int pnode, unsigned long mmr);
-};
-
/*
* The activation descriptor:
* The format of the message to send, plus all accompanying control
@@ -411,7 +421,10 @@ struct bau_desc {
struct uv2_3_bau_msg_header uv2_3_hdr;
} header;
- struct bau_msg_payload payload;
+ union bau_payload_header {
+ struct uv1_2_3_bau_msg_payload uv1_2_3;
+ struct uv4_bau_msg_payload uv4;
+ } payload;
};
/* UV1:
* -payload-- ---------header------
@@ -588,8 +601,12 @@ struct uvhub_desc {
struct socket_desc socket[2];
};
-/*
- * one per-cpu; to locate the software tables
+/**
+ * struct bau_control
+ * @status_mmr: location of status mmr, determined by uvhub_cpu
+ * @status_index: index of ERR|BUSY bits in status mmr, determined by uvhub_cpu
+ *
+ * Per-cpu control struct containing CPU topology information and BAU tuneables.
*/
struct bau_control {
struct bau_desc *descriptor_base;
@@ -607,6 +624,8 @@ struct bau_control {
int timeout_tries;
int ipi_attempts;
int conseccompletes;
+ u64 status_mmr;
+ int status_index;
bool nobau;
short baudisabled;
short cpu;
@@ -644,6 +663,19 @@ struct bau_control {
struct hub_and_pnode *thp;
};
+/* Abstracted BAU functions */
+struct bau_operations {
+ unsigned long (*read_l_sw_ack)(void);
+ unsigned long (*read_g_sw_ack)(int pnode);
+ unsigned long (*bau_gpa_to_offset)(unsigned long vaddr);
+ void (*write_l_sw_ack)(unsigned long mmr);
+ void (*write_g_sw_ack)(int pnode, unsigned long mmr);
+ void (*write_payload_first)(int pnode, unsigned long mmr);
+ void (*write_payload_last)(int pnode, unsigned long mmr);
+ int (*wait_completion)(struct bau_desc*,
+ struct bau_control*, long try);
+};
+
static inline void write_mmr_data_broadcast(int pnode, unsigned long mmr_image)
{
write_gmmr(pnode, UVH_BAU_DATA_BROADCAST, mmr_image);