diff options
Diffstat (limited to 'drivers/gpu/drm/imagination/pvr_rogue_fwif_common.h')
| -rw-r--r-- | drivers/gpu/drm/imagination/pvr_rogue_fwif_common.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/gpu/drm/imagination/pvr_rogue_fwif_common.h b/drivers/gpu/drm/imagination/pvr_rogue_fwif_common.h new file mode 100644 index 000000000000..6ebb95ba98a6 --- /dev/null +++ b/drivers/gpu/drm/imagination/pvr_rogue_fwif_common.h @@ -0,0 +1,60 @@ +/* SPDX-License-Identifier: GPL-2.0-only OR MIT */ +/* Copyright (c) 2023 Imagination Technologies Ltd. */ + +#ifndef PVR_ROGUE_FWIF_COMMON_H +#define PVR_ROGUE_FWIF_COMMON_H + +#include <linux/build_bug.h> + +/* + * This macro represents a mask of LSBs that must be zero on data structure + * sizes and offsets to ensure they are 8-byte granular on types shared between + * the FW and host driver. + */ +#define PVR_FW_ALIGNMENT_LSB 7U + +/* Macro to test structure size alignment. */ +#define PVR_FW_STRUCT_SIZE_ASSERT(_a) \ + static_assert((sizeof(_a) & PVR_FW_ALIGNMENT_LSB) == 0U, \ + "Size of " #_a " is not properly aligned") + +/* The master definition for data masters known to the firmware. */ + +#define PVR_FWIF_DM_GP (0) +/* Either TDM or 2D DM is present. */ +/* When the 'tla' feature is present in the hw (as per @pvr_device_features). */ +#define PVR_FWIF_DM_2D (1) +/* + * When the 'fastrender_dm' feature is present in the hw (as per + * @pvr_device_features). + */ +#define PVR_FWIF_DM_TDM (1) + +#define PVR_FWIF_DM_GEOM (2) +#define PVR_FWIF_DM_FRAG (3) +#define PVR_FWIF_DM_CDM (4) +#define PVR_FWIF_DM_RAY (5) +#define PVR_FWIF_DM_GEOM2 (6) +#define PVR_FWIF_DM_GEOM3 (7) +#define PVR_FWIF_DM_GEOM4 (8) + +#define PVR_FWIF_DM_LAST PVR_FWIF_DM_GEOM4 + +/* Maximum number of DM in use: GP, 2D/TDM, GEOM, 3D, CDM, RAY, GEOM2, GEOM3, GEOM4 */ +#define PVR_FWIF_DM_MAX (PVR_FWIF_DM_LAST + 1U) + +/* GPU Utilisation states */ +#define PVR_FWIF_GPU_UTIL_STATE_IDLE 0U +#define PVR_FWIF_GPU_UTIL_STATE_ACTIVE 1U +#define PVR_FWIF_GPU_UTIL_STATE_BLOCKED 2U +#define PVR_FWIF_GPU_UTIL_STATE_NUM 3U +#define PVR_FWIF_GPU_UTIL_STATE_MASK 0x3ULL + +/* + * Maximum amount of register writes that can be done by the register + * programmer (FW or META DMA). This is not a HW limitation, it is only + * a protection against malformed inputs to the register programmer. + */ +#define PVR_MAX_NUM_REGISTER_PROGRAMMER_WRITES 128U + +#endif /* PVR_ROGUE_FWIF_COMMON_H */ |