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| author | Chris Metcalf <cmetcalf@tilera.com> | 2010-09-15 11:16:10 -0400 |
|---|---|---|
| committer | Chris Metcalf <cmetcalf@tilera.com> | 2010-09-15 11:16:10 -0400 |
| commit | a802fc685426303ab627b7ad3fd5c97b5dea7e00 (patch) | |
| tree | 29a4ae60405318129efc0897f311a6ac4b1328d2 /arch/tile/include | |
| parent | 74fca9da097b74117ae2cef9e5f0d9b0e28ccbb7 (diff) | |
| download | linux-a802fc685426303ab627b7ad3fd5c97b5dea7e00.tar.bz2 | |
arch/tile: Save and restore extra user state for tilegx
During context switch, save and restore a couple of additional bits of
tilegx user state that can be persistently modified by userspace.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/include')
| -rw-r--r-- | arch/tile/include/arch/chip_tile64.h | 3 | ||||
| -rw-r--r-- | arch/tile/include/arch/chip_tilepro.h | 3 | ||||
| -rw-r--r-- | arch/tile/include/asm/processor.h | 12 |
3 files changed, 18 insertions, 0 deletions
diff --git a/arch/tile/include/arch/chip_tile64.h b/arch/tile/include/arch/chip_tile64.h index 1246573be59e..261aaba092d4 100644 --- a/arch/tile/include/arch/chip_tile64.h +++ b/arch/tile/include/arch/chip_tile64.h @@ -150,6 +150,9 @@ /** Is the PROC_STATUS SPR supported? */ #define CHIP_HAS_PROC_STATUS_SPR() 0 +/** Is the DSTREAM_PF SPR supported? */ +#define CHIP_HAS_DSTREAM_PF() 0 + /** Log of the number of mshims we have. */ #define CHIP_LOG_NUM_MSHIMS() 2 diff --git a/arch/tile/include/arch/chip_tilepro.h b/arch/tile/include/arch/chip_tilepro.h index e864c47fc89c..70017699a74c 100644 --- a/arch/tile/include/arch/chip_tilepro.h +++ b/arch/tile/include/arch/chip_tilepro.h @@ -150,6 +150,9 @@ /** Is the PROC_STATUS SPR supported? */ #define CHIP_HAS_PROC_STATUS_SPR() 1 +/** Is the DSTREAM_PF SPR supported? */ +#define CHIP_HAS_DSTREAM_PF() 0 + /** Log of the number of mshims we have. */ #define CHIP_LOG_NUM_MSHIMS() 2 diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h index d942d09b252e..ccd5f8425688 100644 --- a/arch/tile/include/asm/processor.h +++ b/arch/tile/include/asm/processor.h @@ -103,6 +103,18 @@ struct thread_struct { /* Any other miscellaneous processor state bits */ unsigned long proc_status; #endif +#if !CHIP_HAS_FIXED_INTVEC_BASE() + /* Interrupt base for PL0 interrupts */ + unsigned long interrupt_vector_base; +#endif +#if CHIP_HAS_TILE_RTF_HWM() + /* Tile cache retry fifo high-water mark */ + unsigned long tile_rtf_hwm; +#endif +#if CHIP_HAS_DSTREAM_PF() + /* Data stream prefetch control */ + unsigned long dstream_pf; +#endif #ifdef CONFIG_HARDWALL /* Is this task tied to an activated hardwall? */ struct hardwall_info *hardwall; |