diff options
author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-12-17 18:47:46 +0100 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2019-12-17 18:47:46 +0100 |
commit | be452c4e8d1434a0095a9baa6523bb9772258d59 (patch) | |
tree | 41f395df057b0494a0ce24d27b6c289983ce9eca /drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c | |
parent | d2e532286d4fa67cb162220cd7be30274561741c (diff) | |
parent | ad808910be68dcf8da5d837d4511d00ad5d3678a (diff) |
Merge tag 'drm-next-5.6-2019-12-11' of git://people.freedesktop.org/~agd5f/linux into drm-next
drm-next-5.6-2019-12-11:
amdgpu:
- Add MST atomic routines
- Add support for DMCUB (new helper microengine for displays)
- Add OEM i2c support in DC
- Use vstartup for vblank events on DCN
- Simplify Kconfig for DC
- Renoir fixes for DC
- Clean up function pointers in DC
- Initial support for HDCP 2.x
- Misc code cleanups
- GFX10 fixes
- Rework JPEG engine handling for VCN
- Add clock and power gating support for JPEG
- BACO support for Arcturus
- Cleanup PSP ring handling
- Add framework for using BACO with runtime pm to save power
- Move core pci state handling out of the driver for pm ops
- Allow guest power control in 1 VF case with SR-IOV
- SR-IOV fixes
- RAS fixes
- Support for power metrics on renoir
- Golden settings updates for gfx10
- Enable gfxoff on supported navi10 skus
- Update MAINTAINERS
amdkfd:
- Clean up generational gfx code
- Fixes for gfx10
- DIQ fixes
- Share more code with amdgpu
radeon:
- PPC DMA fix
- Register checker fixes for r1xx/r2xx
- Misc cleanups
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191211223020.7510-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c')
-rw-r--r-- | drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c new file mode 100644 index 000000000000..4094eca212f0 --- /dev/null +++ b/drivers/gpu/drm/amd/display/dmub/src/dmub_reg.c @@ -0,0 +1,109 @@ +/* + * 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 + * + */ + +#include "dmub_reg.h" +#include "../inc/dmub_srv.h" + +struct dmub_reg_value_masks { + uint32_t value; + uint32_t mask; +}; + +static inline void +set_reg_field_value_masks(struct dmub_reg_value_masks *field_value_mask, + uint32_t value, uint32_t mask, uint8_t shift) +{ + field_value_mask->value = + (field_value_mask->value & ~mask) | (mask & (value << shift)); + field_value_mask->mask = field_value_mask->mask | mask; +} + +static void set_reg_field_values(struct dmub_reg_value_masks *field_value_mask, + uint32_t addr, int n, uint8_t shift1, + uint32_t mask1, uint32_t field_value1, + va_list ap) +{ + uint32_t shift, mask, field_value; + int i = 1; + + /* gather all bits value/mask getting updated in this register */ + set_reg_field_value_masks(field_value_mask, field_value1, mask1, + shift1); + + while (i < n) { + shift = va_arg(ap, uint32_t); + mask = va_arg(ap, uint32_t); + field_value = va_arg(ap, uint32_t); + + set_reg_field_value_masks(field_value_mask, field_value, mask, + shift); + i++; + } +} + +static inline uint32_t get_reg_field_value_ex(uint32_t reg_value, uint32_t mask, + uint8_t shift) +{ + return (mask & reg_value) >> shift; +} + +void dmub_reg_update(struct dmub_srv *srv, uint32_t addr, int n, uint8_t shift1, + uint32_t mask1, uint32_t field_value1, ...) +{ + struct dmub_reg_value_masks field_value_mask = { 0 }; + uint32_t reg_val; + va_list ap; + + va_start(ap, field_value1); + set_reg_field_values(&field_value_mask, addr, n, shift1, mask1, + field_value1, ap); + va_end(ap); + + reg_val = srv->funcs.reg_read(srv->user_ctx, addr); + reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value; + srv->funcs.reg_write(srv->user_ctx, addr, reg_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, ...) +{ + struct dmub_reg_value_masks field_value_mask = { 0 }; + va_list ap; + + va_start(ap, field_value1); + set_reg_field_values(&field_value_mask, addr, n, shift1, mask1, + field_value1, ap); + va_end(ap); + + reg_val = (reg_val & ~field_value_mask.mask) | field_value_mask.value; + srv->funcs.reg_write(srv->user_ctx, addr, reg_val); +} + +void dmub_reg_get(struct dmub_srv *srv, uint32_t addr, uint8_t shift, + uint32_t mask, uint32_t *field_value) +{ + uint32_t reg_val = srv->funcs.reg_read(srv->user_ctx, addr); + *field_value = get_reg_field_value_ex(reg_val, mask, shift); +} |