diff options
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/drm/i915_drm.h | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index d8d10d932759..fe25a01c81f2 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -1308,14 +1308,16 @@ struct drm_i915_reg_read { * be specified */ __u64 offset; +#define I915_REG_READ_8B_WA BIT(0) + __u64 val; /* Return value */ }; /* Known registers: * * Render engine timestamp - 0x2358 + 64bit - gen7+ * - Note this register returns an invalid value if using the default - * single instruction 8byte read, in order to workaround that use - * offset (0x2538 | 1) instead. + * single instruction 8byte read, in order to workaround that pass + * flag I915_REG_READ_8B_WA in offset field. * */ @@ -1509,6 +1511,11 @@ struct drm_i915_perf_oa_config { __u32 n_boolean_regs; __u32 n_flex_regs; + /* + * These fields are pointers to tuples of u32 values (register + * address, value). For example the expected length of the buffer + * pointed by mux_regs_ptr is (2 * sizeof(u32) * n_mux_regs). + */ __u64 mux_regs_ptr; __u64 boolean_regs_ptr; __u64 flex_regs_ptr; |