diff options
| author | Koby Elbaz <kelbaz@habana.ai> | 2023-10-05 18:06:14 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 19:42:58 +0300 |
| commit | 399a13323f0d148bf00eff7e9156efe8a97063c0 (patch) | |
| tree | afc886a34432bcbb3481ce2b13cc5ec4ea33e8b1 /drivers/gpu/drm/xe/xe_device_types.h | |
| parent | e814389ff180514001df424f48645cf30f4a2a1e (diff) | |
| download | linux-399a13323f0d148bf00eff7e9156efe8a97063c0.tar.xz | |
drm/xe: add 28-bit address support in struct xe_reg
Xe driver currently supports 22-bit addresses for MMIO access.
Future platforms will have additional MMIO extension with
larger address spaces, and to access them, the driver will
have to support wider address representation.
Please note that while the XE_REG macro is used for MMIO access,
XE_REG_EXT macro will be used for MMIO-extension access.
Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Moti Haimovski <mhaimovski@habana.ai>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_device_types.h')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_device_types.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_device_types.h b/drivers/gpu/drm/xe/xe_device_types.h index dd52d112d58f..f7c7d44a6465 100644 --- a/drivers/gpu/drm/xe/xe_device_types.h +++ b/drivers/gpu/drm/xe/xe_device_types.h @@ -140,6 +140,19 @@ struct xe_tile { void *regs; } mmio; + /** + * @mmio_ext: MMIO-extension info for a tile. + * + * Each tile has its own additional 256MB (28-bit) MMIO-extension space. + */ + struct { + /** @size: size of tile's additional MMIO-extension space */ + size_t size; + + /** @regs: pointer to tile's additional MMIO-extension space */ + void *regs; + } mmio_ext; + /** @mem: memory management info for tile */ struct { /** |