diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/smuio_v14_0_2.c')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/smuio_v14_0_2.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/smuio_v14_0_2.c b/drivers/gpu/drm/amd/amdgpu/smuio_v14_0_2.c new file mode 100644 index 000000000000..2a51a70d4846 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/smuio_v14_0_2.c @@ -0,0 +1,62 @@ +/* + * Copyright 2023 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. + * + */ +#include "amdgpu.h" +#include "smuio_v14_0_2.h" +#include "smuio/smuio_14_0_2_offset.h" +#include "smuio/smuio_14_0_2_sh_mask.h" +#include <linux/preempt.h> + +static u32 smuio_v14_0_2_get_rom_index_offset(struct amdgpu_device *adev) +{ + return SOC15_REG_OFFSET(SMUIO, 0, regROM_INDEX); +} + +static u32 smuio_v14_0_2_get_rom_data_offset(struct amdgpu_device *adev) +{ + return SOC15_REG_OFFSET(SMUIO, 0, regROM_DATA); +} + +static u64 smuio_v14_0_2_get_gpu_clock_counter(struct amdgpu_device *adev) +{ + u64 clock; + u64 clock_counter_lo, clock_counter_hi_pre, clock_counter_hi_after; + + preempt_disable(); + clock_counter_hi_pre = (u64)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_UPPER); + clock_counter_lo = (u64)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_LOWER); + /* the clock counter may be udpated during polling the counters */ + clock_counter_hi_after = (u64)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_UPPER); + if (clock_counter_hi_pre != clock_counter_hi_after) + clock_counter_lo = (u64)RREG32_SOC15(SMUIO, 0, regGOLDEN_TSC_COUNT_LOWER); + preempt_enable(); + + clock = clock_counter_lo | (clock_counter_hi_after << 32ULL); + + return clock; +} + +const struct amdgpu_smuio_funcs smuio_v14_0_2_funcs = { + .get_rom_index_offset = smuio_v14_0_2_get_rom_index_offset, + .get_rom_data_offset = smuio_v14_0_2_get_rom_data_offset, + .get_gpu_clock_counter = smuio_v14_0_2_get_gpu_clock_counter, +}; |