diff options
| author | Michal Wajdeczko <michal.wajdeczko@intel.com> | 2023-11-28 18:15:05 +0300 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 19:45:27 +0300 |
| commit | b1d20405821812ad70d95eefe58cadc6d50b0917 (patch) | |
| tree | d88a9374bc4b2baa1c34a84b3719b8efce709e0c /drivers/gpu/drm/xe/regs | |
| parent | 5bcedc9eabdc6ecd7a11f1e6147f0f601d7cdc77 (diff) | |
| download | linux-b1d20405821812ad70d95eefe58cadc6d50b0917.tar.xz | |
drm/xe/pf: Introduce Local Memory Translation Table
The Local Memory Translation Table (LMTT) provides additional
abstraction for Virtual Functions (VF) accessing device VRAM.
This code is based on prior work of Michal Winiarski.
In this patch we focus only on LMTT initialization. Remaining LMTT
functions will be used once we add a VF provisioning to the PF.
Bspec: 44117, 52404, 59314
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://lore.kernel.org/r/20231128151507.1015-4-michal.wajdeczko@intel.com
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/regs')
| -rw-r--r-- | drivers/gpu/drm/xe/regs/xe_sriov_regs.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/regs/xe_sriov_regs.h b/drivers/gpu/drm/xe/regs/xe_sriov_regs.h new file mode 100644 index 000000000000..58a4e0fad1e1 --- /dev/null +++ b/drivers/gpu/drm/xe/regs/xe_sriov_regs.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2023 Intel Corporation + */ + +#ifndef _REGS_XE_SRIOV_REGS_H_ +#define _REGS_XE_SRIOV_REGS_H_ + +#include "regs/xe_reg_defs.h" + +#define XE2_LMEM_CFG XE_REG(0x48b0) + +#define LMEM_CFG XE_REG(0xcf58) +#define LMEM_EN REG_BIT(31) +#define LMTT_DIR_PTR REG_GENMASK(30, 0) /* in multiples of 64KB */ + +#endif |