diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h index cb586f7df270..bc898ba5355d 100644 --- a/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h +++ b/drivers/gpu/drm/i915/gt/uc/intel_uc_fw.h @@ -6,6 +6,7 @@ #ifndef _INTEL_UC_FW_H_ #define _INTEL_UC_FW_H_ +#include <linux/sizes.h> #include <linux/types.h> #include "intel_uc_fw_abi.h" #include "intel_device_info.h" @@ -114,6 +115,19 @@ struct intel_uc_fw { (uc)->fw.file_selected.minor_ver, \ (uc)->fw.file_selected.patch_ver)) +/* + * When we load the uC binaries, we pin them in a reserved section at the top of + * the GGTT, which is ~18 MBs. On multi-GT systems where the GTs share the GGTT, + * we also need to make sure that each binary is pinned to a unique location + * during load, because the different GT can go through the FW load at the same + * time (see uc_fw_ggtt_offset() for details). + * Given that the available space is much greater than what is required by the + * binaries, to keep things simple instead of dynamically partitioning the + * reserved section to make space for all the blobs we can just reserve a static + * chunk for each binary. + */ +#define INTEL_UC_RSVD_GGTT_PER_FW SZ_2M + #ifdef CONFIG_DRM_I915_DEBUG_GUC void intel_uc_fw_change_status(struct intel_uc_fw *uc_fw, enum intel_uc_fw_status status); |