diff options
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h')
-rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h new file mode 100644 index 000000000000..bac4ee8f745f --- /dev/null +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.h @@ -0,0 +1,120 @@ +/* + * Copyright 2019 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: AMD + * + */ + +#ifndef _DMUB_REG_H_ +#define _DMUB_REG_H_ + +#include "../inc/dmub_types.h" + +struct dmub_srv; + +/* Register offset and field lookup. */ + +#define BASE(seg) BASE_INNER(seg) + +#define REG_OFFSET(base_index, addr) (BASE(base_index) + addr) + +#define REG(reg_name) REG_OFFSET(mm ## reg_name ## _BASE_IDX, mm ## reg_name) + +#define FD(reg_field) reg_field ## __SHIFT, reg_field ## _MASK + +#define FN(reg_name, field) FD(reg_name##__##field) + +/* Register reads and writes. */ + +#define REG_READ(reg) ((CTX)->funcs.reg_read((CTX)->user_ctx, REG(reg))) + +#define REG_WRITE(reg, val) \ + ((CTX)->funcs.reg_write((CTX)->user_ctx, REG(reg), (val))) + +/* Register field setting. */ + +#define REG_SET_N(reg_name, n, initial_val, ...) \ + dmub_reg_set(CTX, REG(reg_name), initial_val, n, __VA_ARGS__) + +#define REG_SET(reg_name, initial_val, field, val) \ + REG_SET_N(reg_name, 1, initial_val, \ + FN(reg_name, field), val) + +#define REG_SET_2(reg, init_value, f1, v1, f2, v2) \ + REG_SET_N(reg, 2, init_value, \ + FN(reg, f1), v1, \ + FN(reg, f2), v2) + +#define REG_SET_3(reg, init_value, f1, v1, f2, v2, f3, v3) \ + REG_SET_N(reg, 3, init_value, \ + FN(reg, f1), v1, \ + FN(reg, f2), v2, \ + FN(reg, f3), v3) + +#define REG_SET_4(reg, init_value, f1, v1, f2, v2, f3, v3, f4, v4) \ + REG_SET_N(reg, 4, init_value, \ + FN(reg, f1), v1, \ + FN(reg, f2), v2, \ + FN(reg, f3), v3, \ + FN(reg, f4), v4) + +/* Register field updating. */ + +#define REG_UPDATE_N(reg_name, n, ...)\ + dmub_reg_update(CTX, REG(reg_name), n, __VA_ARGS__) + +#define REG_UPDATE(reg_name, field, val) \ + REG_UPDATE_N(reg_name, 1, \ + FN(reg_name, field), val) + +#define REG_UPDATE_2(reg, f1, v1, f2, v2) \ + REG_UPDATE_N(reg, 2,\ + FN(reg, f1), v1,\ + FN(reg, f2), v2) + +#define REG_UPDATE_3(reg, f1, v1, f2, v2, f3, v3) \ + REG_UPDATE_N(reg, 3, \ + FN(reg, f1), v1, \ + FN(reg, f2), v2, \ + FN(reg, f3), v3) + +#define REG_UPDATE_4(reg, f1, v1, f2, v2, f3, v3, f4, v4) \ + REG_UPDATE_N(reg, 4, \ + FN(reg, f1), v1, \ + FN(reg, f2), v2, \ + FN(reg, f3), v3, \ + FN(reg, f4), v4) + +/* Register field getting. */ + +#define REG_GET(reg_name, field, val) \ + dmub_reg_get(CTX, REG(reg_name), FN(reg_name, field), val) + +void dmub_reg_set(struct dmub_srv *srv, uint32_t addr, uint32_t reg_val, int n, + uint8_t shift1, uint32_t mask1, uint32_t field_value1, ...); + +void dmub_reg_update(struct dmub_srv *srv, uint32_t addr, int n, uint8_t shift1, + uint32_t mask1, uint32_t field_value1, ...); + +void dmub_reg_get(struct dmub_srv *srv, uint32_t addr, uint8_t shift, + uint32_t mask, uint32_t *field_value); + +#endif /* _DMUB_REG_H_ */ |