mirror of https://gitee.com/openkylin/linux.git
sgi-xp: add usage of GRU driver by xpc_remote_memcpy()
Add UV support to xpc_remote_memcpy(), which involves interfacing to the GRU driver. Signed-off-by: Dean Nelson <dcn@sgi.com> Cc: Jack Steiner <steiner@sgi.com> Cc: "Luck, Tony" <tony.luck@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Dean Nelson
Linus Torvalds
parent
261f3b4979
commit
a812dcc3a2
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@ -207,7 +207,9 @@ enum xp_retval {
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xpUnsupported, /* 56: unsupported functionality or resource */
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xpNeedMoreInfo, /* 57: more info is needed by SAL */
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xpUnknownReason /* 58: unknown reason - must be last in enum */
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xpGruCopyError, /* 58: gru_copy_gru() returned error */
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xpUnknownReason /* 59: unknown reason - must be last in enum */
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};
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/*
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@ -349,7 +351,9 @@ extern short xp_max_npartitions;
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extern short xp_partition_id;
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extern u8 xp_region_size;
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extern enum xp_retval (*xp_remote_memcpy) (void *, const void *, size_t);
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extern unsigned long (*xp_pa) (void *);
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extern enum xp_retval (*xp_remote_memcpy) (unsigned long, const unsigned long,
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size_t);
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extern int (*xp_cpu_to_nasid) (int);
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extern u64 xp_nofault_PIOR_target;
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@ -41,7 +41,11 @@ EXPORT_SYMBOL_GPL(xp_partition_id);
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u8 xp_region_size;
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EXPORT_SYMBOL_GPL(xp_region_size);
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enum xp_retval (*xp_remote_memcpy) (void *dst, const void *src, size_t len);
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unsigned long (*xp_pa) (void *addr);
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EXPORT_SYMBOL_GPL(xp_pa);
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enum xp_retval (*xp_remote_memcpy) (unsigned long dst_gpa,
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const unsigned long src_gpa, size_t len);
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EXPORT_SYMBOL_GPL(xp_remote_memcpy);
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int (*xp_cpu_to_nasid) (int cpuid);
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@ -63,7 +63,7 @@ xp_register_nofault_code_sn2(void)
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return xpSuccess;
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}
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void
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static void
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xp_unregister_nofault_code_sn2(void)
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{
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u64 func_addr = *(u64 *)xp_nofault_PIOR;
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@ -74,45 +74,42 @@ xp_unregister_nofault_code_sn2(void)
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err_func_addr, 1, 0);
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}
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/*
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* Convert a virtual memory address to a physical memory address.
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*/
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static unsigned long
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xp_pa_sn2(void *addr)
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{
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return __pa(addr);
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}
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/*
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* Wrapper for bte_copy().
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*
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* vdst - virtual address of the destination of the transfer.
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* psrc - physical address of the source of the transfer.
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* dst_pa - physical address of the destination of the transfer.
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* src_pa - physical address of the source of the transfer.
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* len - number of bytes to transfer from source to destination.
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*
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* Note: xp_remote_memcpy_sn2() should never be called while holding a spinlock.
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*/
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static enum xp_retval
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xp_remote_memcpy_sn2(void *vdst, const void *psrc, size_t len)
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xp_remote_memcpy_sn2(unsigned long dst_pa, const unsigned long src_pa,
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size_t len)
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{
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bte_result_t ret;
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u64 pdst = ia64_tpa(vdst);
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/* ??? What are the rules governing the src and dst addresses passed in?
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* ??? Currently we're assuming that dst is a virtual address and src
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* ??? is a physical address, is this appropriate? Can we allow them to
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* ??? be whatever and we make the change here without damaging the
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* ??? addresses?
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*/
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/*
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* Ensure that the physically mapped memory is contiguous.
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*
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* We do this by ensuring that the memory is from region 7 only.
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* If the need should arise to use memory from one of the other
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* regions, then modify the BUG_ON() statement to ensure that the
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* memory from that region is always physically contiguous.
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*/
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BUG_ON(REGION_NUMBER(vdst) != RGN_KERNEL);
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ret = bte_copy((u64)psrc, pdst, len, (BTE_NOTIFY | BTE_WACQUIRE), NULL);
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ret = bte_copy(src_pa, dst_pa, len, (BTE_NOTIFY | BTE_WACQUIRE), NULL);
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if (ret == BTE_SUCCESS)
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return xpSuccess;
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if (is_shub2())
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dev_err(xp, "bte_copy() on shub2 failed, error=0x%x\n", ret);
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else
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dev_err(xp, "bte_copy() failed, error=%d\n", ret);
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if (is_shub2()) {
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dev_err(xp, "bte_copy() on shub2 failed, error=0x%x dst_pa="
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"0x%016lx src_pa=0x%016lx len=%ld\\n", ret, dst_pa,
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src_pa, len);
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} else {
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dev_err(xp, "bte_copy() failed, error=%d dst_pa=0x%016lx "
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"src_pa=0x%016lx len=%ld\\n", ret, dst_pa, src_pa, len);
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}
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return xpBteCopyError;
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}
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@ -132,6 +129,7 @@ xp_init_sn2(void)
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xp_partition_id = sn_partition_id;
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xp_region_size = sn_region_size;
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xp_pa = xp_pa_sn2;
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xp_remote_memcpy = xp_remote_memcpy_sn2;
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xp_cpu_to_nasid = xp_cpu_to_nasid_sn2;
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@ -13,13 +13,33 @@
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*
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*/
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#include <linux/device.h>
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#include <asm/uv/uv_hub.h>
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#include "../sgi-gru/grukservices.h"
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#include "xp.h"
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static enum xp_retval
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xp_remote_memcpy_uv(void *vdst, const void *psrc, size_t len)
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/*
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* Convert a virtual memory address to a physical memory address.
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*/
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static unsigned long
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xp_pa_uv(void *addr)
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{
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/* !!! this function needs fleshing out */
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return xpUnsupported;
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return uv_gpa(addr);
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}
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static enum xp_retval
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xp_remote_memcpy_uv(unsigned long dst_gpa, const unsigned long src_gpa,
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size_t len)
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{
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int ret;
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ret = gru_copy_gpa(dst_gpa, src_gpa, len);
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if (ret == 0)
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return xpSuccess;
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dev_err(xp, "gru_copy_gpa() failed, dst_gpa=0x%016lx src_gpa=0x%016lx "
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"len=%ld\n", dst_gpa, src_gpa, len);
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return xpGruCopyError;
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}
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enum xp_retval
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@ -29,6 +49,7 @@ xp_init_uv(void)
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xp_max_npartitions = XP_MAX_NPARTITIONS_UV;
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xp_pa = xp_pa_uv;
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xp_remote_memcpy = xp_remote_memcpy_uv;
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return xpSuccess;
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@ -91,8 +91,8 @@ struct xpc_rsvd_page {
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u8 version;
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u8 pad1[3]; /* align to next u64 in 1st 64-byte cacheline */
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union {
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u64 vars_pa; /* physical address of struct xpc_vars */
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u64 activate_mq_gpa; /* global phys address of activate_mq */
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unsigned long vars_pa; /* phys address of struct xpc_vars */
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unsigned long activate_mq_gpa; /* gru phy addr of activate_mq */
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} sn;
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unsigned long ts_jiffies; /* timestamp when rsvd pg was setup by XPC */
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u64 pad2[10]; /* align to last u64 in 2nd 64-byte cacheline */
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@ -122,8 +122,8 @@ struct xpc_vars_sn2 {
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u64 heartbeat_offline; /* if 0, heartbeat should be changing */
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int activate_IRQ_nasid;
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int activate_IRQ_phys_cpuid;
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u64 vars_part_pa;
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u64 amos_page_pa; /* paddr of page of amos from MSPEC driver */
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unsigned long vars_part_pa;
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unsigned long amos_page_pa;/* paddr of page of amos from MSPEC driver */
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struct amo *amos_page; /* vaddr of page of amos from MSPEC driver */
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};
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@ -142,10 +142,10 @@ struct xpc_vars_sn2 {
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struct xpc_vars_part_sn2 {
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u64 magic;
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u64 openclose_args_pa; /* physical address of open and close args */
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u64 GPs_pa; /* physical address of Get/Put values */
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unsigned long openclose_args_pa; /* phys addr of open and close args */
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unsigned long GPs_pa; /* physical address of Get/Put values */
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u64 chctl_amo_pa; /* physical address of chctl flags' amo */
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unsigned long chctl_amo_pa; /* physical address of chctl flags' amo */
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int notify_IRQ_nasid; /* nasid of where to send notify IRQs */
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int notify_IRQ_phys_cpuid; /* CPUID of where to send notify IRQs */
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@ -213,7 +213,7 @@ struct xpc_openclose_args {
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u16 msg_size; /* sizeof each message entry */
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u16 remote_nentries; /* #of message entries in remote msg queue */
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u16 local_nentries; /* #of message entries in local msg queue */
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u64 local_msgqueue_pa; /* physical address of local message queue */
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unsigned long local_msgqueue_pa; /* phys addr of local message queue */
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};
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#define XPC_OPENCLOSE_ARGS_SIZE \
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@ -366,8 +366,8 @@ struct xpc_channel {
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void *remote_msgqueue_base; /* base address of kmalloc'd space */
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struct xpc_msg *remote_msgqueue; /* cached copy of remote partition's */
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/* local message queue */
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u64 remote_msgqueue_pa; /* phys addr of remote partition's */
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/* local message queue */
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unsigned long remote_msgqueue_pa; /* phys addr of remote partition's */
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/* local message queue */
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atomic_t references; /* #of external references to queues */
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@ -491,12 +491,12 @@ xpc_any_msg_chctl_flags_set(union xpc_channel_ctl_flags *chctl)
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*/
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struct xpc_partition_sn2 {
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u64 remote_amos_page_pa; /* phys addr of partition's amos page */
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unsigned long remote_amos_page_pa; /* paddr of partition's amos page */
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int activate_IRQ_nasid; /* active partition's act/deact nasid */
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int activate_IRQ_phys_cpuid; /* active part's act/deact phys cpuid */
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u64 remote_vars_pa; /* phys addr of partition's vars */
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u64 remote_vars_part_pa; /* phys addr of partition's vars part */
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unsigned long remote_vars_pa; /* phys addr of partition's vars */
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unsigned long remote_vars_part_pa; /* paddr of partition's vars part */
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u8 remote_vars_version; /* version# of partition's vars */
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void *local_GPs_base; /* base address of kmalloc'd space */
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@ -504,10 +504,10 @@ struct xpc_partition_sn2 {
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void *remote_GPs_base; /* base address of kmalloc'd space */
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struct xpc_gp_sn2 *remote_GPs; /* copy of remote partition's local */
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/* Get/Put values */
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u64 remote_GPs_pa; /* phys address of remote partition's local */
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/* Get/Put values */
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unsigned long remote_GPs_pa; /* phys addr of remote partition's local */
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/* Get/Put values */
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u64 remote_openclose_args_pa; /* phys addr of remote's args */
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unsigned long remote_openclose_args_pa; /* phys addr of remote's args */
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int notify_IRQ_nasid; /* nasid of where to send notify IRQs */
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int notify_IRQ_phys_cpuid; /* CPUID of where to send notify IRQs */
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@ -529,7 +529,7 @@ struct xpc_partition {
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u8 remote_rp_version; /* version# of partition's rsvd pg */
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unsigned long remote_rp_ts_jiffies; /* timestamp when rsvd pg setup */
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u64 remote_rp_pa; /* phys addr of partition's rsvd pg */
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unsigned long remote_rp_pa; /* phys addr of partition's rsvd pg */
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u64 last_heartbeat; /* HB at last read */
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u32 activate_IRQ_rcvd; /* IRQs since activation */
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spinlock_t act_lock; /* protect updating of act_state */
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@ -623,7 +623,8 @@ extern void xpc_activate_partition(struct xpc_partition *);
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extern void xpc_activate_kthreads(struct xpc_channel *, int);
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extern void xpc_create_kthreads(struct xpc_channel *, int, int);
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extern void xpc_disconnect_wait(int);
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extern enum xp_retval (*xpc_get_partition_rsvd_page_pa) (u64, u64 *, u64 *,
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extern enum xp_retval (*xpc_get_partition_rsvd_page_pa) (void *, u64 *,
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unsigned long *,
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size_t *);
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extern enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *);
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extern void (*xpc_heartbeat_init) (void);
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@ -640,8 +641,8 @@ extern void (*xpc_notify_senders_of_disconnect) (struct xpc_channel *);
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extern void (*xpc_process_msg_chctl_flags) (struct xpc_partition *, int);
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extern int (*xpc_n_of_deliverable_msgs) (struct xpc_channel *);
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extern struct xpc_msg *(*xpc_get_deliverable_msg) (struct xpc_channel *);
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extern void (*xpc_request_partition_activation) (struct xpc_rsvd_page *, u64,
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int);
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extern void (*xpc_request_partition_activation) (struct xpc_rsvd_page *,
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unsigned long, int);
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extern void (*xpc_request_partition_reactivation) (struct xpc_partition *);
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extern void (*xpc_request_partition_deactivation) (struct xpc_partition *);
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extern void (*xpc_cancel_partition_deactivation_request) (
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@ -690,7 +691,8 @@ extern enum xp_retval xpc_mark_partition_active(struct xpc_partition *);
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extern void xpc_mark_partition_inactive(struct xpc_partition *);
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extern void xpc_discovery(void);
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extern enum xp_retval xpc_get_remote_rp(int, unsigned long *,
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struct xpc_rsvd_page *, u64 *);
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struct xpc_rsvd_page *,
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unsigned long *);
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extern void xpc_deactivate_partition(const int, struct xpc_partition *,
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enum xp_retval);
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extern enum xp_retval xpc_initiate_partid_to_nasids(short, void *);
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@ -366,9 +366,8 @@ xpc_process_openclose_chctl_flags(struct xpc_partition *part, int ch_number,
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dev_dbg(xpc_chan, "XPC_CHCTL_OPENREPLY (local_msgqueue_pa="
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"0x%lx, local_nentries=%d, remote_nentries=%d) "
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"received from partid=%d, channel=%d\n",
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(unsigned long)args->local_msgqueue_pa,
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args->local_nentries, args->remote_nentries,
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ch->partid, ch->number);
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args->local_msgqueue_pa, args->local_nentries,
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args->remote_nentries, ch->partid, ch->number);
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if (ch->flags & (XPC_C_DISCONNECTING | XPC_C_DISCONNECTED)) {
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spin_unlock_irqrestore(&ch->lock, irq_flags);
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@ -169,8 +169,9 @@ static struct notifier_block xpc_die_notifier = {
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.notifier_call = xpc_system_die,
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};
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enum xp_retval (*xpc_get_partition_rsvd_page_pa) (u64 buf, u64 *cookie,
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u64 *paddr, size_t *len);
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enum xp_retval (*xpc_get_partition_rsvd_page_pa) (void *buf, u64 *cookie,
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unsigned long *rp_pa,
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size_t *len);
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enum xp_retval (*xpc_rsvd_page_init) (struct xpc_rsvd_page *rp);
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void (*xpc_heartbeat_init) (void);
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void (*xpc_heartbeat_exit) (void);
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@ -189,7 +190,8 @@ int (*xpc_n_of_deliverable_msgs) (struct xpc_channel *ch);
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struct xpc_msg *(*xpc_get_deliverable_msg) (struct xpc_channel *ch);
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void (*xpc_request_partition_activation) (struct xpc_rsvd_page *remote_rp,
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u64 remote_rp_pa, int nasid);
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unsigned long remote_rp_pa,
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int nasid);
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void (*xpc_request_partition_reactivation) (struct xpc_partition *part);
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void (*xpc_request_partition_deactivation) (struct xpc_partition *part);
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void (*xpc_cancel_partition_deactivation_request) (struct xpc_partition *part);
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@ -60,15 +60,15 @@ xpc_kmalloc_cacheline_aligned(size_t size, gfp_t flags, void **base)
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* Given a nasid, get the physical address of the partition's reserved page
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* for that nasid. This function returns 0 on any error.
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*/
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static u64
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static unsigned long
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xpc_get_rsvd_page_pa(int nasid)
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{
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enum xp_retval ret;
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u64 cookie = 0;
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u64 rp_pa = nasid; /* seed with nasid */
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unsigned long rp_pa = nasid; /* seed with nasid */
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size_t len = 0;
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u64 buf = buf;
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u64 buf_len = 0;
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size_t buf_len = 0;
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void *buf = buf;
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void *buf_base = NULL;
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while (1) {
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@ -78,7 +78,7 @@ xpc_get_rsvd_page_pa(int nasid)
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dev_dbg(xpc_part, "SAL returned with ret=%d, cookie=0x%016lx, "
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"address=0x%016lx, len=0x%016lx\n", ret,
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(unsigned long)cookie, (unsigned long)rp_pa, len);
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(unsigned long)cookie, rp_pa, len);
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if (ret != xpNeedMoreInfo)
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break;
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@ -87,19 +87,17 @@ xpc_get_rsvd_page_pa(int nasid)
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if (L1_CACHE_ALIGN(len) > buf_len) {
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kfree(buf_base);
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buf_len = L1_CACHE_ALIGN(len);
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buf = (u64)xpc_kmalloc_cacheline_aligned(buf_len,
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GFP_KERNEL,
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&buf_base);
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buf = xpc_kmalloc_cacheline_aligned(buf_len, GFP_KERNEL,
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&buf_base);
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if (buf_base == NULL) {
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dev_err(xpc_part, "unable to kmalloc "
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"len=0x%016lx\n",
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(unsigned long)buf_len);
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"len=0x%016lx\n", buf_len);
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ret = xpNoMemory;
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break;
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}
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}
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|
||||
ret = xp_remote_memcpy((void *)buf, (void *)rp_pa, buf_len);
|
||||
ret = xp_remote_memcpy(xp_pa(buf), rp_pa, buf_len);
|
||||
if (ret != xpSuccess) {
|
||||
dev_dbg(xpc_part, "xp_remote_memcpy failed %d\n", ret);
|
||||
break;
|
||||
|
|
@ -111,8 +109,7 @@ xpc_get_rsvd_page_pa(int nasid)
|
|||
if (ret != xpSuccess)
|
||||
rp_pa = 0;
|
||||
|
||||
dev_dbg(xpc_part, "reserved page at phys address 0x%016lx\n",
|
||||
(unsigned long)rp_pa);
|
||||
dev_dbg(xpc_part, "reserved page at phys address 0x%016lx\n", rp_pa);
|
||||
return rp_pa;
|
||||
}
|
||||
|
||||
|
|
@ -125,7 +122,7 @@ struct xpc_rsvd_page *
|
|||
xpc_setup_rsvd_page(void)
|
||||
{
|
||||
struct xpc_rsvd_page *rp;
|
||||
u64 rp_pa;
|
||||
unsigned long rp_pa;
|
||||
unsigned long new_ts_jiffies;
|
||||
|
||||
/* get the local reserved page's address */
|
||||
|
|
@ -193,7 +190,7 @@ xpc_setup_rsvd_page(void)
|
|||
*/
|
||||
enum xp_retval
|
||||
xpc_get_remote_rp(int nasid, unsigned long *discovered_nasids,
|
||||
struct xpc_rsvd_page *remote_rp, u64 *remote_rp_pa)
|
||||
struct xpc_rsvd_page *remote_rp, unsigned long *remote_rp_pa)
|
||||
{
|
||||
int l;
|
||||
enum xp_retval ret;
|
||||
|
|
@ -205,7 +202,7 @@ xpc_get_remote_rp(int nasid, unsigned long *discovered_nasids,
|
|||
return xpNoRsvdPageAddr;
|
||||
|
||||
/* pull over the reserved page header and part_nasids mask */
|
||||
ret = xp_remote_memcpy(remote_rp, (void *)*remote_rp_pa,
|
||||
ret = xp_remote_memcpy(xp_pa(remote_rp), *remote_rp_pa,
|
||||
XPC_RP_HEADER_SIZE + xpc_nasid_mask_nbytes);
|
||||
if (ret != xpSuccess)
|
||||
return ret;
|
||||
|
|
@ -389,7 +386,7 @@ xpc_discovery(void)
|
|||
{
|
||||
void *remote_rp_base;
|
||||
struct xpc_rsvd_page *remote_rp;
|
||||
u64 remote_rp_pa;
|
||||
unsigned long remote_rp_pa;
|
||||
int region;
|
||||
int region_size;
|
||||
int max_regions;
|
||||
|
|
@ -500,7 +497,7 @@ enum xp_retval
|
|||
xpc_initiate_partid_to_nasids(short partid, void *nasid_mask)
|
||||
{
|
||||
struct xpc_partition *part;
|
||||
u64 part_nasid_pa;
|
||||
unsigned long part_nasid_pa;
|
||||
|
||||
part = &xpc_partitions[partid];
|
||||
if (part->remote_rp_pa == 0)
|
||||
|
|
@ -508,8 +505,8 @@ xpc_initiate_partid_to_nasids(short partid, void *nasid_mask)
|
|||
|
||||
memset(nasid_mask, 0, xpc_nasid_mask_nbytes);
|
||||
|
||||
part_nasid_pa = (u64)XPC_RP_PART_NASIDS(part->remote_rp_pa);
|
||||
part_nasid_pa = (unsigned long)XPC_RP_PART_NASIDS(part->remote_rp_pa);
|
||||
|
||||
return xp_remote_memcpy(nasid_mask, (void *)part_nasid_pa,
|
||||
return xp_remote_memcpy(xp_pa(nasid_mask), part_nasid_pa,
|
||||
xpc_nasid_mask_nbytes);
|
||||
}
|
||||
|
|
|
|||
|
|
@ -207,8 +207,8 @@ xpc_handle_activate_IRQ_sn2(int irq, void *dev_id)
|
|||
* Flag the appropriate amo variable and send an IRQ to the specified node.
|
||||
*/
|
||||
static void
|
||||
xpc_send_activate_IRQ_sn2(u64 amos_page_pa, int from_nasid, int to_nasid,
|
||||
int to_phys_cpuid)
|
||||
xpc_send_activate_IRQ_sn2(unsigned long amos_page_pa, int from_nasid,
|
||||
int to_nasid, int to_phys_cpuid)
|
||||
{
|
||||
struct amo *amos = (struct amo *)__va(amos_page_pa +
|
||||
(XPC_ACTIVATE_IRQ_AMOS_SN2 *
|
||||
|
|
@ -404,7 +404,7 @@ xpc_send_chctl_openreply_sn2(struct xpc_channel *ch, unsigned long *irq_flags)
|
|||
|
||||
args->remote_nentries = ch->remote_nentries;
|
||||
args->local_nentries = ch->local_nentries;
|
||||
args->local_msgqueue_pa = __pa(ch->local_msgqueue);
|
||||
args->local_msgqueue_pa = xp_pa(ch->local_msgqueue);
|
||||
XPC_SEND_NOTIFY_IRQ_SN2(ch, XPC_CHCTL_OPENREPLY, irq_flags);
|
||||
}
|
||||
|
||||
|
|
@ -577,13 +577,13 @@ xpc_allow_amo_ops_shub_wars_1_1_sn2(void)
|
|||
}
|
||||
|
||||
static enum xp_retval
|
||||
xpc_get_partition_rsvd_page_pa_sn2(u64 buf, u64 *cookie, u64 *paddr,
|
||||
xpc_get_partition_rsvd_page_pa_sn2(void *buf, u64 *cookie, unsigned long *rp_pa,
|
||||
size_t *len)
|
||||
{
|
||||
s64 status;
|
||||
enum xp_retval ret;
|
||||
|
||||
status = sn_partition_reserved_page_pa(buf, cookie, paddr, len);
|
||||
status = sn_partition_reserved_page_pa((u64)buf, cookie, rp_pa, len);
|
||||
if (status == SALRET_OK)
|
||||
ret = xpSuccess;
|
||||
else if (status == SALRET_MORE_PASSES)
|
||||
|
|
@ -604,7 +604,7 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp)
|
|||
|
||||
xpc_vars_sn2 = XPC_RP_VARS(rp);
|
||||
|
||||
rp->sn.vars_pa = __pa(xpc_vars_sn2);
|
||||
rp->sn.vars_pa = xp_pa(xpc_vars_sn2);
|
||||
|
||||
/* vars_part array follows immediately after vars */
|
||||
xpc_vars_part_sn2 = (struct xpc_vars_part_sn2 *)((u8 *)XPC_RP_VARS(rp) +
|
||||
|
|
@ -649,7 +649,7 @@ xpc_rsvd_page_init_sn2(struct xpc_rsvd_page *rp)
|
|||
xpc_vars_sn2->version = XPC_V_VERSION;
|
||||
xpc_vars_sn2->activate_IRQ_nasid = cpuid_to_nasid(0);
|
||||
xpc_vars_sn2->activate_IRQ_phys_cpuid = cpu_physical_id(0);
|
||||
xpc_vars_sn2->vars_part_pa = __pa(xpc_vars_part_sn2);
|
||||
xpc_vars_sn2->vars_part_pa = xp_pa(xpc_vars_part_sn2);
|
||||
xpc_vars_sn2->amos_page_pa = ia64_tpa((u64)amos_page);
|
||||
xpc_vars_sn2->amos_page = amos_page; /* save for next load of XPC */
|
||||
|
||||
|
|
@ -734,8 +734,8 @@ xpc_check_remote_hb_sn2(void)
|
|||
}
|
||||
|
||||
/* pull the remote_hb cache line */
|
||||
ret = xp_remote_memcpy(remote_vars,
|
||||
(void *)part->sn.sn2.remote_vars_pa,
|
||||
ret = xp_remote_memcpy(xp_pa(remote_vars),
|
||||
part->sn.sn2.remote_vars_pa,
|
||||
XPC_RP_VARS_SIZE);
|
||||
if (ret != xpSuccess) {
|
||||
XPC_DEACTIVATE_PARTITION(part, ret);
|
||||
|
|
@ -768,7 +768,8 @@ xpc_check_remote_hb_sn2(void)
|
|||
* assumed to be of size XPC_RP_VARS_SIZE.
|
||||
*/
|
||||
static enum xp_retval
|
||||
xpc_get_remote_vars_sn2(u64 remote_vars_pa, struct xpc_vars_sn2 *remote_vars)
|
||||
xpc_get_remote_vars_sn2(unsigned long remote_vars_pa,
|
||||
struct xpc_vars_sn2 *remote_vars)
|
||||
{
|
||||
enum xp_retval ret;
|
||||
|
||||
|
|
@ -776,7 +777,7 @@ xpc_get_remote_vars_sn2(u64 remote_vars_pa, struct xpc_vars_sn2 *remote_vars)
|
|||
return xpVarsNotSet;
|
||||
|
||||
/* pull over the cross partition variables */
|
||||
ret = xp_remote_memcpy(remote_vars, (void *)remote_vars_pa,
|
||||
ret = xp_remote_memcpy(xp_pa(remote_vars), remote_vars_pa,
|
||||
XPC_RP_VARS_SIZE);
|
||||
if (ret != xpSuccess)
|
||||
return ret;
|
||||
|
|
@ -791,7 +792,7 @@ xpc_get_remote_vars_sn2(u64 remote_vars_pa, struct xpc_vars_sn2 *remote_vars)
|
|||
|
||||
static void
|
||||
xpc_request_partition_activation_sn2(struct xpc_rsvd_page *remote_rp,
|
||||
u64 remote_rp_pa, int nasid)
|
||||
unsigned long remote_rp_pa, int nasid)
|
||||
{
|
||||
xpc_send_local_activate_IRQ_sn2(nasid);
|
||||
}
|
||||
|
|
@ -883,7 +884,8 @@ xpc_partition_deactivation_requested_sn2(short partid)
|
|||
static void
|
||||
xpc_update_partition_info_sn2(struct xpc_partition *part, u8 remote_rp_version,
|
||||
unsigned long *remote_rp_ts_jiffies,
|
||||
u64 remote_rp_pa, u64 remote_vars_pa,
|
||||
unsigned long remote_rp_pa,
|
||||
unsigned long remote_vars_pa,
|
||||
struct xpc_vars_sn2 *remote_vars)
|
||||
{
|
||||
struct xpc_partition_sn2 *part_sn2 = &part->sn.sn2;
|
||||
|
|
@ -948,8 +950,8 @@ xpc_identify_activate_IRQ_req_sn2(int nasid)
|
|||
{
|
||||
struct xpc_rsvd_page *remote_rp;
|
||||
struct xpc_vars_sn2 *remote_vars;
|
||||
u64 remote_rp_pa;
|
||||
u64 remote_vars_pa;
|
||||
unsigned long remote_rp_pa;
|
||||
unsigned long remote_vars_pa;
|
||||
int remote_rp_version;
|
||||
int reactivate = 0;
|
||||
unsigned long remote_rp_ts_jiffies = 0;
|
||||
|
|
@ -1291,11 +1293,11 @@ xpc_setup_infrastructure_sn2(struct xpc_partition *part)
|
|||
* The setting of the magic # indicates that these per partition
|
||||
* specific variables are ready to be used.
|
||||
*/
|
||||
xpc_vars_part_sn2[partid].GPs_pa = __pa(part_sn2->local_GPs);
|
||||
xpc_vars_part_sn2[partid].GPs_pa = xp_pa(part_sn2->local_GPs);
|
||||
xpc_vars_part_sn2[partid].openclose_args_pa =
|
||||
__pa(part->local_openclose_args);
|
||||
xp_pa(part->local_openclose_args);
|
||||
xpc_vars_part_sn2[partid].chctl_amo_pa =
|
||||
__pa(part_sn2->local_chctl_amo_va);
|
||||
xp_pa(part_sn2->local_chctl_amo_va);
|
||||
cpuid = raw_smp_processor_id(); /* any CPU in this partition will do */
|
||||
xpc_vars_part_sn2[partid].notify_IRQ_nasid = cpuid_to_nasid(cpuid);
|
||||
xpc_vars_part_sn2[partid].notify_IRQ_phys_cpuid =
|
||||
|
|
@ -1382,25 +1384,25 @@ xpc_teardown_infrastructure_sn2(struct xpc_partition *part)
|
|||
* Create a wrapper that hides the underlying mechanism for pulling a cacheline
|
||||
* (or multiple cachelines) from a remote partition.
|
||||
*
|
||||
* src must be a cacheline aligned physical address on the remote partition.
|
||||
* src_pa must be a cacheline aligned physical address on the remote partition.
|
||||
* dst must be a cacheline aligned virtual address on this partition.
|
||||
* cnt must be cacheline sized
|
||||
*/
|
||||
/* ??? Replace this function by call to xp_remote_memcpy() or bte_copy()? */
|
||||
static enum xp_retval
|
||||
xpc_pull_remote_cachelines_sn2(struct xpc_partition *part, void *dst,
|
||||
const void *src, size_t cnt)
|
||||
const unsigned long src_pa, size_t cnt)
|
||||
{
|
||||
enum xp_retval ret;
|
||||
|
||||
DBUG_ON((u64)src != L1_CACHE_ALIGN((u64)src));
|
||||
DBUG_ON((u64)dst != L1_CACHE_ALIGN((u64)dst));
|
||||
DBUG_ON(src_pa != L1_CACHE_ALIGN(src_pa));
|
||||
DBUG_ON((unsigned long)dst != L1_CACHE_ALIGN((unsigned long)dst));
|
||||
DBUG_ON(cnt != L1_CACHE_ALIGN(cnt));
|
||||
|
||||
if (part->act_state == XPC_P_DEACTIVATING)
|
||||
return part->reason;
|
||||
|
||||
ret = xp_remote_memcpy(dst, src, cnt);
|
||||
ret = xp_remote_memcpy(xp_pa(dst), src_pa, cnt);
|
||||
if (ret != xpSuccess) {
|
||||
dev_dbg(xpc_chan, "xp_remote_memcpy() from partition %d failed,"
|
||||
" ret=%d\n", XPC_PARTID(part), ret);
|
||||
|
|
@ -1420,7 +1422,8 @@ xpc_pull_remote_vars_part_sn2(struct xpc_partition *part)
|
|||
struct xpc_vars_part_sn2 *pulled_entry_cacheline =
|
||||
(struct xpc_vars_part_sn2 *)L1_CACHE_ALIGN((u64)buffer);
|
||||
struct xpc_vars_part_sn2 *pulled_entry;
|
||||
u64 remote_entry_cacheline_pa, remote_entry_pa;
|
||||
unsigned long remote_entry_cacheline_pa;
|
||||
unsigned long remote_entry_pa;
|
||||
short partid = XPC_PARTID(part);
|
||||
enum xp_retval ret;
|
||||
|
||||
|
|
@ -1440,7 +1443,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc_partition *part)
|
|||
(L1_CACHE_BYTES - 1)));
|
||||
|
||||
ret = xpc_pull_remote_cachelines_sn2(part, pulled_entry_cacheline,
|
||||
(void *)remote_entry_cacheline_pa,
|
||||
remote_entry_cacheline_pa,
|
||||
L1_CACHE_BYTES);
|
||||
if (ret != xpSuccess) {
|
||||
dev_dbg(xpc_chan, "failed to pull XPC vars_part from "
|
||||
|
|
@ -1587,7 +1590,7 @@ xpc_get_chctl_all_flags_sn2(struct xpc_partition *part)
|
|||
if (xpc_any_openclose_chctl_flags_set(&chctl)) {
|
||||
ret = xpc_pull_remote_cachelines_sn2(part, part->
|
||||
remote_openclose_args,
|
||||
(void *)part_sn2->
|
||||
part_sn2->
|
||||
remote_openclose_args_pa,
|
||||
XPC_OPENCLOSE_ARGS_SIZE);
|
||||
if (ret != xpSuccess) {
|
||||
|
|
@ -1604,7 +1607,7 @@ xpc_get_chctl_all_flags_sn2(struct xpc_partition *part)
|
|||
|
||||
if (xpc_any_msg_chctl_flags_set(&chctl)) {
|
||||
ret = xpc_pull_remote_cachelines_sn2(part, part_sn2->remote_GPs,
|
||||
(void *)part_sn2->remote_GPs_pa,
|
||||
part_sn2->remote_GPs_pa,
|
||||
XPC_GP_SIZE);
|
||||
if (ret != xpSuccess) {
|
||||
XPC_DEACTIVATE_PARTITION(part, ret);
|
||||
|
|
@ -1971,8 +1974,10 @@ xpc_pull_remote_msg_sn2(struct xpc_channel *ch, s64 get)
|
|||
{
|
||||
struct xpc_partition *part = &xpc_partitions[ch->partid];
|
||||
struct xpc_channel_sn2 *ch_sn2 = &ch->sn.sn2;
|
||||
struct xpc_msg *remote_msg, *msg;
|
||||
u32 msg_index, nmsgs;
|
||||
unsigned long remote_msg_pa;
|
||||
struct xpc_msg *msg;
|
||||
u32 msg_index;
|
||||
u32 nmsgs;
|
||||
u64 msg_offset;
|
||||
enum xp_retval ret;
|
||||
|
||||
|
|
@ -1996,10 +2001,9 @@ xpc_pull_remote_msg_sn2(struct xpc_channel *ch, s64 get)
|
|||
|
||||
msg_offset = msg_index * ch->msg_size;
|
||||
msg = (struct xpc_msg *)((u64)ch->remote_msgqueue + msg_offset);
|
||||
remote_msg = (struct xpc_msg *)(ch->remote_msgqueue_pa +
|
||||
msg_offset);
|
||||
remote_msg_pa = ch->remote_msgqueue_pa + msg_offset;
|
||||
|
||||
ret = xpc_pull_remote_cachelines_sn2(part, msg, remote_msg,
|
||||
ret = xpc_pull_remote_cachelines_sn2(part, msg, remote_msg_pa,
|
||||
nmsgs * ch->msg_size);
|
||||
if (ret != xpSuccess) {
|
||||
|
||||
|
|
|
|||
|
|
@ -61,7 +61,7 @@ xpc_heartbeat_exit_uv(void)
|
|||
|
||||
static void
|
||||
xpc_request_partition_activation_uv(struct xpc_rsvd_page *remote_rp,
|
||||
u64 remote_rp_pa, int nasid)
|
||||
unsigned long remote_rp_pa, int nasid)
|
||||
{
|
||||
short partid = remote_rp->SAL_partid;
|
||||
struct xpc_partition *part = &xpc_partitions[partid];
|
||||
|
|
|
|||
|
|
@ -44,7 +44,7 @@ struct xpnet_message {
|
|||
u16 version; /* Version for this message */
|
||||
u16 embedded_bytes; /* #of bytes embedded in XPC message */
|
||||
u32 magic; /* Special number indicating this is xpnet */
|
||||
u64 buf_pa; /* phys address of buffer to retrieve */
|
||||
unsigned long buf_pa; /* phys address of buffer to retrieve */
|
||||
u32 size; /* #of bytes in buffer */
|
||||
u8 leadin_ignore; /* #of bytes to ignore at the beginning */
|
||||
u8 tailout_ignore; /* #of bytes to ignore at the end */
|
||||
|
|
@ -152,6 +152,7 @@ static void
|
|||
xpnet_receive(short partid, int channel, struct xpnet_message *msg)
|
||||
{
|
||||
struct sk_buff *skb;
|
||||
void *dst;
|
||||
enum xp_retval ret;
|
||||
struct xpnet_dev_private *priv =
|
||||
(struct xpnet_dev_private *)xpnet_device->priv;
|
||||
|
|
@ -166,9 +167,8 @@ xpnet_receive(short partid, int channel, struct xpnet_message *msg)
|
|||
|
||||
return;
|
||||
}
|
||||
dev_dbg(xpnet, "received 0x%lx, %d, %d, %d\n",
|
||||
(unsigned long)msg->buf_pa, msg->size, msg->leadin_ignore,
|
||||
msg->tailout_ignore);
|
||||
dev_dbg(xpnet, "received 0x%lx, %d, %d, %d\n", msg->buf_pa, msg->size,
|
||||
msg->leadin_ignore, msg->tailout_ignore);
|
||||
|
||||
/* reserve an extra cache line */
|
||||
skb = dev_alloc_skb(msg->size + L1_CACHE_BYTES);
|
||||
|
|
@ -210,15 +210,12 @@ xpnet_receive(short partid, int channel, struct xpnet_message *msg)
|
|||
skb_copy_to_linear_data(skb, &msg->data,
|
||||
(size_t)msg->embedded_bytes);
|
||||
} else {
|
||||
dst = (void *)((u64)skb->data & ~(L1_CACHE_BYTES - 1));
|
||||
dev_dbg(xpnet, "transferring buffer to the skb->data area;\n\t"
|
||||
"xp_remote_memcpy(0x%p, 0x%p, %hu)\n", (void *)
|
||||
((u64)skb->data & ~(L1_CACHE_BYTES - 1)),
|
||||
"xp_remote_memcpy(0x%p, 0x%p, %hu)\n", dst,
|
||||
(void *)msg->buf_pa, msg->size);
|
||||
|
||||
ret = xp_remote_memcpy((void *)((u64)skb->data &
|
||||
~(L1_CACHE_BYTES - 1)),
|
||||
(void *)msg->buf_pa, msg->size);
|
||||
|
||||
ret = xp_remote_memcpy(xp_pa(dst), msg->buf_pa, msg->size);
|
||||
if (ret != xpSuccess) {
|
||||
/*
|
||||
* !!! Need better way of cleaning skb. Currently skb
|
||||
|
|
@ -226,8 +223,7 @@ xpnet_receive(short partid, int channel, struct xpnet_message *msg)
|
|||
* !!! dev_kfree_skb.
|
||||
*/
|
||||
dev_err(xpnet, "xp_remote_memcpy(0x%p, 0x%p, 0x%hx) "
|
||||
"returned error=0x%x\n", (void *)
|
||||
((u64)skb->data & ~(L1_CACHE_BYTES - 1)),
|
||||
"returned error=0x%x\n", dst,
|
||||
(void *)msg->buf_pa, msg->size, ret);
|
||||
|
||||
xpc_received(partid, channel, (void *)msg);
|
||||
|
|
@ -428,13 +424,13 @@ xpnet_send(struct sk_buff *skb, struct xpnet_pending_msg *queued_msg,
|
|||
msg->size = end_addr - start_addr;
|
||||
msg->leadin_ignore = (u64)skb->data - start_addr;
|
||||
msg->tailout_ignore = end_addr - (u64)skb_tail_pointer(skb);
|
||||
msg->buf_pa = __pa(start_addr);
|
||||
msg->buf_pa = xp_pa((void *)start_addr);
|
||||
|
||||
dev_dbg(xpnet, "sending XPC message to %d:%d\n"
|
||||
KERN_DEBUG "msg->buf_pa=0x%lx, msg->size=%u, "
|
||||
"msg->leadin_ignore=%u, msg->tailout_ignore=%u\n",
|
||||
dest_partid, XPC_NET_CHANNEL, (unsigned long)msg->buf_pa,
|
||||
msg->size, msg->leadin_ignore, msg->tailout_ignore);
|
||||
dest_partid, XPC_NET_CHANNEL, msg->buf_pa, msg->size,
|
||||
msg->leadin_ignore, msg->tailout_ignore);
|
||||
|
||||
atomic_inc(&queued_msg->use_count);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue