diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/lsdma_v6_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/lsdma_v6_0.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/lsdma_v6_0.c b/drivers/gpu/drm/amd/amdgpu/lsdma_v6_0.c new file mode 100644 index 000000000000..1a285b531881 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/lsdma_v6_0.c @@ -0,0 +1,121 @@ +/* + * Copyright 2022 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 <linux/delay.h> +#include "amdgpu.h" +#include "lsdma_v6_0.h" +#include "amdgpu_lsdma.h" + +#include "lsdma/lsdma_6_0_0_offset.h" +#include "lsdma/lsdma_6_0_0_sh_mask.h" + +static int lsdma_v6_0_wait_pio_status(struct amdgpu_device *adev) +{ + return amdgpu_lsdma_wait_for(adev, SOC15_REG_OFFSET(LSDMA, 0, regLSDMA_PIO_STATUS), + LSDMA_PIO_STATUS__PIO_IDLE_MASK | LSDMA_PIO_STATUS__PIO_FIFO_EMPTY_MASK, + LSDMA_PIO_STATUS__PIO_IDLE_MASK | LSDMA_PIO_STATUS__PIO_FIFO_EMPTY_MASK); +} + +static int lsdma_v6_0_copy_mem(struct amdgpu_device *adev, + uint64_t src_addr, + uint64_t dst_addr, + uint64_t size) +{ + int ret; + uint32_t tmp; + + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_SRC_ADDR_LO, lower_32_bits(src_addr)); + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_SRC_ADDR_HI, upper_32_bits(src_addr)); + + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_LO, lower_32_bits(dst_addr)); + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_HI, upper_32_bits(dst_addr)); + + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_CONTROL, 0x0); + + tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, BYTE_COUNT, size); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, SRC_LOCATION, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, DST_LOCATION, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, SRC_ADDR_INC, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, DST_ADDR_INC, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, OVERLAP_DISABLE, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, CONSTANT_FILL, 0); + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND, tmp); + + ret = lsdma_v6_0_wait_pio_status(adev); + if (ret) + dev_err(adev->dev, "LSDMA PIO failed to copy memory!\n"); + + return ret; +} + +static int lsdma_v6_0_fill_mem(struct amdgpu_device *adev, + uint64_t dst_addr, + uint32_t data, + uint64_t size) +{ + int ret; + uint32_t tmp; + + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_CONSTFILL_DATA, data); + + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_LO, lower_32_bits(dst_addr)); + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_DST_ADDR_HI, upper_32_bits(dst_addr)); + + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_CONTROL, 0x0); + + tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, BYTE_COUNT, size); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, SRC_LOCATION, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, DST_LOCATION, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, SRC_ADDR_INC, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, DST_ADDR_INC, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, OVERLAP_DISABLE, 0); + tmp = REG_SET_FIELD(tmp, LSDMA_PIO_COMMAND, CONSTANT_FILL, 1); + WREG32_SOC15(LSDMA, 0, regLSDMA_PIO_COMMAND, tmp); + + ret = lsdma_v6_0_wait_pio_status(adev); + if (ret) + dev_err(adev->dev, "LSDMA PIO failed to fill memory!\n"); + + return ret; +} + +static void lsdma_v6_0_update_memory_power_gating(struct amdgpu_device *adev, + bool enable) +{ + uint32_t tmp; + + tmp = RREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL); + tmp = REG_SET_FIELD(tmp, LSDMA_MEM_POWER_CTRL, MEM_POWER_CTRL_EN, 0); + WREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL, tmp); + + tmp = REG_SET_FIELD(tmp, LSDMA_MEM_POWER_CTRL, MEM_POWER_CTRL_EN, enable); + WREG32_SOC15(LSDMA, 0, regLSDMA_MEM_POWER_CTRL, tmp); +} + +const struct amdgpu_lsdma_funcs lsdma_v6_0_funcs = { + .copy_mem = lsdma_v6_0_copy_mem, + .fill_mem = lsdma_v6_0_fill_mem, + .update_memory_power_gating = lsdma_v6_0_update_memory_power_gating +}; |