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Merge branch 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-uv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, UV: Correct UV2 BAU destination timeout x86, UV: Correct failed topology memory leak x86, UV: Remove cpumask_t from the stack x86, UV: Rename hubmask to pnmask x86, UV: Correct reset_with_ipi() x86, UV: Allow for non-consecutive sockets x86, UV: Inline header file functions x86, UV: Fix smp_processor_id() use in a preemptable region x66, UV: Enable 64-bit ACPI MFCG support for SGI UV2 platform x86, UV: Clean up uv_mmrs.h
This commit is contained in:
commit
3e0b8df79d
4 changed files with 1677 additions and 1315 deletions
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@ -67,7 +67,7 @@
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* we're using 655us, similar to UV1: 65 units of 10us
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*/
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#define UV1_INTD_SOFT_ACK_TIMEOUT_PERIOD (9UL)
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#define UV2_INTD_SOFT_ACK_TIMEOUT_PERIOD (65*10UL)
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#define UV2_INTD_SOFT_ACK_TIMEOUT_PERIOD (15UL)
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#define UV_INTD_SOFT_ACK_TIMEOUT_PERIOD (is_uv1_hub() ? \
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UV1_INTD_SOFT_ACK_TIMEOUT_PERIOD : \
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@ -106,12 +106,20 @@
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#define DS_SOURCE_TIMEOUT 3
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/*
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* bits put together from HRP_LB_BAU_SB_ACTIVATION_STATUS_0/1/2
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* values 1 and 5 will not occur
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* values 1 and 3 will not occur
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* Decoded meaning ERROR BUSY AUX ERR
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* ------------------------------- ---- ----- -------
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* IDLE 0 0 0
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* BUSY (active) 0 1 0
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* SW Ack Timeout (destination) 1 0 0
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* SW Ack INTD rejected (strong NACK) 1 0 1
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* Source Side Time Out Detected 1 1 0
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* Destination Side PUT Failed 1 1 1
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*/
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#define UV2H_DESC_IDLE 0
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#define UV2H_DESC_DEST_TIMEOUT 2
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#define UV2H_DESC_DEST_STRONG_NACK 3
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#define UV2H_DESC_BUSY 4
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#define UV2H_DESC_BUSY 2
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#define UV2H_DESC_DEST_TIMEOUT 4
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#define UV2H_DESC_DEST_STRONG_NACK 5
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#define UV2H_DESC_SOURCE_TIMEOUT 6
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#define UV2H_DESC_DEST_PUT_ERR 7
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@ -183,7 +191,7 @@
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* 'base_dest_nasid' field of the header corresponds to the
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* destination nodeID associated with that specified bit.
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*/
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struct bau_targ_hubmask {
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struct pnmask {
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unsigned long bits[BITS_TO_LONGS(UV_DISTRIBUTION_SIZE)];
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};
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@ -314,7 +322,7 @@ struct bau_msg_header {
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* Should be 64 bytes
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*/
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struct bau_desc {
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struct bau_targ_hubmask distribution;
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struct pnmask distribution;
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/*
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* message template, consisting of header and payload:
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*/
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@ -488,6 +496,7 @@ struct bau_control {
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struct bau_control *uvhub_master;
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struct bau_control *socket_master;
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struct ptc_stats *statp;
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cpumask_t *cpumask;
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unsigned long timeout_interval;
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unsigned long set_bau_on_time;
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atomic_t active_descriptor_count;
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@ -526,90 +535,90 @@ struct bau_control {
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struct hub_and_pnode *thp;
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};
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static unsigned long read_mmr_uv2_status(void)
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static inline unsigned long read_mmr_uv2_status(void)
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{
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return read_lmmr(UV2H_LB_BAU_SB_ACTIVATION_STATUS_2);
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}
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static void write_mmr_data_broadcast(int pnode, unsigned long mmr_image)
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static inline void write_mmr_data_broadcast(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_BAU_DATA_BROADCAST, mmr_image);
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}
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static void write_mmr_descriptor_base(int pnode, unsigned long mmr_image)
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static inline void write_mmr_descriptor_base(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_LB_BAU_SB_DESCRIPTOR_BASE, mmr_image);
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}
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static void write_mmr_activation(unsigned long index)
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static inline void write_mmr_activation(unsigned long index)
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{
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write_lmmr(UVH_LB_BAU_SB_ACTIVATION_CONTROL, index);
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}
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static void write_gmmr_activation(int pnode, unsigned long mmr_image)
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static inline void write_gmmr_activation(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_LB_BAU_SB_ACTIVATION_CONTROL, mmr_image);
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}
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static void write_mmr_payload_first(int pnode, unsigned long mmr_image)
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static inline void write_mmr_payload_first(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST, mmr_image);
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}
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static void write_mmr_payload_tail(int pnode, unsigned long mmr_image)
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static inline void write_mmr_payload_tail(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL, mmr_image);
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}
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static void write_mmr_payload_last(int pnode, unsigned long mmr_image)
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static inline void write_mmr_payload_last(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST, mmr_image);
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}
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static void write_mmr_misc_control(int pnode, unsigned long mmr_image)
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static inline void write_mmr_misc_control(int pnode, unsigned long mmr_image)
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{
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write_gmmr(pnode, UVH_LB_BAU_MISC_CONTROL, mmr_image);
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}
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static unsigned long read_mmr_misc_control(int pnode)
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static inline unsigned long read_mmr_misc_control(int pnode)
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{
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return read_gmmr(pnode, UVH_LB_BAU_MISC_CONTROL);
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}
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static void write_mmr_sw_ack(unsigned long mr)
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static inline void write_mmr_sw_ack(unsigned long mr)
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{
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uv_write_local_mmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS, mr);
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}
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static unsigned long read_mmr_sw_ack(void)
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static inline unsigned long read_mmr_sw_ack(void)
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{
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return read_lmmr(UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE);
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}
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static unsigned long read_gmmr_sw_ack(int pnode)
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static inline unsigned long read_gmmr_sw_ack(int pnode)
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{
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return read_gmmr(pnode, UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE);
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}
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static void write_mmr_data_config(int pnode, unsigned long mr)
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static inline void write_mmr_data_config(int pnode, unsigned long mr)
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{
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uv_write_global_mmr64(pnode, UVH_BAU_DATA_CONFIG, mr);
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}
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static inline int bau_uvhub_isset(int uvhub, struct bau_targ_hubmask *dstp)
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static inline int bau_uvhub_isset(int uvhub, struct pnmask *dstp)
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{
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return constant_test_bit(uvhub, &dstp->bits[0]);
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}
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static inline void bau_uvhub_set(int pnode, struct bau_targ_hubmask *dstp)
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static inline void bau_uvhub_set(int pnode, struct pnmask *dstp)
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{
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__set_bit(pnode, &dstp->bits[0]);
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}
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static inline void bau_uvhubs_clear(struct bau_targ_hubmask *dstp,
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static inline void bau_uvhubs_clear(struct pnmask *dstp,
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int nbits)
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{
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bitmap_zero(&dstp->bits[0], nbits);
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}
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static inline int bau_uvhub_weight(struct bau_targ_hubmask *dstp)
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static inline int bau_uvhub_weight(struct pnmask *dstp)
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{
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return bitmap_weight((unsigned long *)&dstp->bits[0],
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UV_DISTRIBUTION_SIZE);
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File diff suppressed because it is too large
Load diff
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@ -519,7 +519,8 @@ static int __init acpi_mcfg_check_entry(struct acpi_table_mcfg *mcfg,
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if (cfg->address < 0xFFFFFFFF)
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return 0;
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if (!strcmp(mcfg->header.oem_id, "SGI"))
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if (!strcmp(mcfg->header.oem_id, "SGI") ||
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!strcmp(mcfg->header.oem_id, "SGI2"))
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return 0;
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if (mcfg->header.revision >= 1) {
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@ -296,14 +296,18 @@ static void bau_process_message(struct msg_desc *mdp,
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}
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/*
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* Determine the first cpu on a uvhub.
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* Determine the first cpu on a pnode.
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*/
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static int uvhub_to_first_cpu(int uvhub)
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static int pnode_to_first_cpu(int pnode, struct bau_control *smaster)
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{
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int cpu;
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for_each_present_cpu(cpu)
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if (uvhub == uv_cpu_to_blade_id(cpu))
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struct hub_and_pnode *hpp;
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for_each_present_cpu(cpu) {
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hpp = &smaster->thp[cpu];
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if (pnode == hpp->pnode)
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return cpu;
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}
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return -1;
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}
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@ -366,28 +370,32 @@ static void do_reset(void *ptr)
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* Use IPI to get all target uvhubs to release resources held by
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* a given sending cpu number.
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*/
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static void reset_with_ipi(struct bau_targ_hubmask *distribution, int sender)
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static void reset_with_ipi(struct pnmask *distribution, struct bau_control *bcp)
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{
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int uvhub;
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int pnode;
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int apnode;
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int maskbits;
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cpumask_t mask;
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int sender = bcp->cpu;
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cpumask_t *mask = bcp->uvhub_master->cpumask;
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struct bau_control *smaster = bcp->socket_master;
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struct reset_args reset_args;
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reset_args.sender = sender;
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cpus_clear(mask);
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cpus_clear(*mask);
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/* find a single cpu for each uvhub in this distribution mask */
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maskbits = sizeof(struct bau_targ_hubmask) * BITSPERBYTE;
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for (uvhub = 0; uvhub < maskbits; uvhub++) {
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maskbits = sizeof(struct pnmask) * BITSPERBYTE;
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/* each bit is a pnode relative to the partition base pnode */
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for (pnode = 0; pnode < maskbits; pnode++) {
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int cpu;
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if (!bau_uvhub_isset(uvhub, distribution))
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if (!bau_uvhub_isset(pnode, distribution))
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continue;
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/* find a cpu for this uvhub */
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cpu = uvhub_to_first_cpu(uvhub);
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cpu_set(cpu, mask);
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apnode = pnode + bcp->partition_base_pnode;
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cpu = pnode_to_first_cpu(apnode, smaster);
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cpu_set(cpu, *mask);
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}
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/* IPI all cpus; preemption is already disabled */
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smp_call_function_many(&mask, do_reset, (void *)&reset_args, 1);
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smp_call_function_many(mask, do_reset, (void *)&reset_args, 1);
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return;
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}
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@ -604,7 +612,7 @@ static void destination_plugged(struct bau_desc *bau_desc,
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quiesce_local_uvhub(hmaster);
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spin_lock(&hmaster->queue_lock);
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reset_with_ipi(&bau_desc->distribution, bcp->cpu);
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reset_with_ipi(&bau_desc->distribution, bcp);
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spin_unlock(&hmaster->queue_lock);
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end_uvhub_quiesce(hmaster);
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@ -626,7 +634,7 @@ static void destination_timeout(struct bau_desc *bau_desc,
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quiesce_local_uvhub(hmaster);
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spin_lock(&hmaster->queue_lock);
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reset_with_ipi(&bau_desc->distribution, bcp->cpu);
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reset_with_ipi(&bau_desc->distribution, bcp);
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spin_unlock(&hmaster->queue_lock);
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end_uvhub_quiesce(hmaster);
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@ -1334,9 +1342,10 @@ static ssize_t tunables_write(struct file *file, const char __user *user,
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instr[count] = '\0';
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bcp = &per_cpu(bau_control, smp_processor_id());
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cpu = get_cpu();
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bcp = &per_cpu(bau_control, cpu);
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ret = parse_tunables_write(bcp, instr, count);
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put_cpu();
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if (ret)
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return ret;
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@ -1686,6 +1695,16 @@ static void make_per_cpu_thp(struct bau_control *smaster)
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}
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}
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/*
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* Each uvhub is to get a local cpumask.
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*/
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static void make_per_hub_cpumask(struct bau_control *hmaster)
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{
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int sz = sizeof(cpumask_t);
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hmaster->cpumask = kzalloc_node(sz, GFP_KERNEL, hmaster->osnode);
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}
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/*
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* Initialize all the per_cpu information for the cpu's on a given socket,
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* given what has been gathered into the socket_desc struct.
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@ -1751,11 +1770,12 @@ static int __init summarize_uvhub_sockets(int nuvhubs,
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sdp = &bdp->socket[socket];
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if (scan_sock(sdp, bdp, &smaster, &hmaster))
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return 1;
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make_per_cpu_thp(smaster);
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}
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socket++;
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socket_mask = (socket_mask >> 1);
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make_per_cpu_thp(smaster);
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}
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make_per_hub_cpumask(hmaster);
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}
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return 0;
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}
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@ -1777,15 +1797,20 @@ static int __init init_per_cpu(int nuvhubs, int base_part_pnode)
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uvhub_mask = kzalloc((nuvhubs+7)/8, GFP_KERNEL);
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if (get_cpu_topology(base_part_pnode, uvhub_descs, uvhub_mask))
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return 1;
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goto fail;
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if (summarize_uvhub_sockets(nuvhubs, uvhub_descs, uvhub_mask))
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return 1;
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goto fail;
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kfree(uvhub_descs);
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kfree(uvhub_mask);
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init_per_cpu_tunables();
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return 0;
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fail:
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kfree(uvhub_descs);
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kfree(uvhub_mask);
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return 1;
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}
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/*
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