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| author | Robin Holt <holt@sgi.com> | 2009-12-15 16:47:55 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 07:20:13 -0800 |
| commit | 289750d1f1fd4a715baa2a2c6dd0cec2b8317fd7 (patch) | |
| tree | 2c525297c460a9ab98b9649eb3021e534a8e77fd /drivers/misc/sgi-gru/gru_instructions.h | |
| parent | fae419f2abd15ab7d1cd1413e6683a276a4e14e2 (diff) | |
| download | kernel_goldelico_gta04-289750d1f1fd4a715baa2a2c6dd0cec2b8317fd7.zip kernel_goldelico_gta04-289750d1f1fd4a715baa2a2c6dd0cec2b8317fd7.tar.gz kernel_goldelico_gta04-289750d1f1fd4a715baa2a2c6dd0cec2b8317fd7.tar.bz2 | |
X86: uv: implement a gru_read_gpa kernel function
The BIOS has decided to store a pointer to the partition reserved page in
a scratch MMR. The GRU is only able to read an MMR using a vload
instruction. The gru_read_gpa() function will implemented.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/misc/sgi-gru/gru_instructions.h')
| -rw-r--r-- | drivers/misc/sgi-gru/gru_instructions.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h index 3c9c066..e033b6c 100644 --- a/drivers/misc/sgi-gru/gru_instructions.h +++ b/drivers/misc/sgi-gru/gru_instructions.h @@ -340,6 +340,19 @@ static inline void gru_start_instruction(struct gru_instruction *ins, int op32) * - nelem and stride are in elements * - tri0/tri1 is in bytes for the beginning of the data segment. */ +static inline void gru_vload_phys(void *cb, unsigned long gpa, + unsigned int tri0, int iaa, unsigned long hints) +{ + struct gru_instruction *ins = (struct gru_instruction *)cb; + + ins->baddr0 = (long)gpa | ((unsigned long)iaa << 62); + ins->nelem = 1; + ins->tri0 = tri0; + ins->op1_stride = 1; + gru_start_instruction(ins, __opword(OP_VLOAD, 0, XTYPE_DW, iaa, 0, + CB_IMA(hints))); +} + static inline void gru_vload(void *cb, unsigned long mem_addr, unsigned int tri0, unsigned char xtype, unsigned long nelem, unsigned long stride, unsigned long hints) |