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| author | David S. Miller <davem@sunset.davemloft.net> | 2006-02-07 10:44:37 +0300 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-03-20 12:11:52 +0300 |
| commit | d257d5da39a78b32721ca84b2ba7f461f2f7ed7f (patch) | |
| tree | ac28d377688ebe13a4d38e05f4ff65ba73d8652a /include/asm-sparc64/tsb.h | |
| parent | 840aaef8db32572b6d11e0d5cb5e6efcbc812000 (diff) | |
| download | linux-d257d5da39a78b32721ca84b2ba7f461f2f7ed7f.tar.xz | |
[SPARC64]: Initial sun4v TLB miss handling infrastructure.
Things are a little tricky because, unlike sun4u, we have
to:
1) do a hypervisor trap to do the TLB load.
2) do the TSB lookup calculations by hand
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/asm-sparc64/tsb.h')
| -rw-r--r-- | include/asm-sparc64/tsb.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/asm-sparc64/tsb.h b/include/asm-sparc64/tsb.h index 44709cde5617..7f3abc32c4dd 100644 --- a/include/asm-sparc64/tsb.h +++ b/include/asm-sparc64/tsb.h @@ -53,6 +53,14 @@ * kernel image, so we don't play these games for swapper_tsb access. */ #ifndef __ASSEMBLY__ +struct tsb_ldquad_phys_patch_entry { + unsigned int addr; + unsigned int sun4u_insn; + unsigned int sun4v_insn; +}; +extern struct tsb_ldquad_phys_patch_entry __tsb_ldquad_phys_patch, + __tsb_ldquad_phys_patch_end; + struct tsb_phys_patch_entry { unsigned int addr; unsigned int insn; @@ -61,9 +69,10 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end; #endif #define TSB_LOAD_QUAD(TSB, REG) \ 661: ldda [TSB] ASI_NUCLEUS_QUAD_LDD, REG; \ - .section .tsb_phys_patch, "ax"; \ + .section .tsb_ldquad_phys_patch, "ax"; \ .word 661b; \ ldda [TSB] ASI_QUAD_LDD_PHYS, REG; \ + ldda [TSB] ASI_QUAD_LDD_PHYS_4V, REG; \ .previous #define TSB_LOAD_TAG_HIGH(TSB, REG) \ |