diff options
Diffstat (limited to 'src/mesa/drivers/dri')
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_defines.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_defines.h b/src/mesa/drivers/dri/i965/brw_defines.h index c6b8dabfcd1..d8b3b1727cf 100644 --- a/src/mesa/drivers/dri/i965/brw_defines.h +++ b/src/mesa/drivers/dri/i965/brw_defines.h @@ -1730,6 +1730,32 @@ enum brw_wm_barycentric_interp_mode { */ #define BRW_MAX_NUM_BUFFER_ENTRIES (1 << 27) +/* Memory Object Control State: + * Specifying zero for L3 means "uncached in L3", at least on Haswell + * and Baytrail, since there are no PTE flags for setting L3 cacheability. + * On Ivybridge, the PTEs do have a cache-in-L3 bit, so setting MOCS to 0 + * may still respect that. + */ +#define GEN7_MOCS_L3 1 + +/* Ivybridge only: cache in LLC. + * Specifying zero here means to use the PTE values set by the kernel; + * non-zero overrides the PTE values. + */ +#define IVB_MOCS_LLC (1 << 1) + +/* Baytrail only: snoop in CPU cache */ +#define BYT_MOCS_SNOOP (1 << 1) + +/* Haswell only: LLC/eLLC controls (write-back or uncached). + * Specifying zero here means to use the PTE values set by the kernel, + * which is useful since it offers additional control (write-through + * cacheing and age). Non-zero overrides the PTE values. + */ +#define HSW_MOCS_UC_LLC_UC_ELLC (1 << 1) +#define HSW_MOCS_WB_LLC_WB_ELLC (2 << 1) +#define HSW_MOCS_UC_LLC_WB_ELLC (3 << 1) + #include "intel_chipset.h" #endif |