diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c new file mode 100644 index 000000000000..e46621fed5b9 --- /dev/null +++ b/drivers/gpu/drm/amd/amdgpu/hdp_v4_0.c @@ -0,0 +1,137 @@ +/* + * Copyright 2020 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 "amdgpu_atombios.h" +#include "hdp_v4_0.h" +#include "amdgpu_ras.h" + +#include "hdp/hdp_4_0_offset.h" +#include "hdp/hdp_4_0_sh_mask.h" +#include <uapi/linux/kfd_ioctl.h> + +/* for Vega20 register name change */ +#define mmHDP_MEM_POWER_CTRL 0x00d4 +#define HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK 0x00000001L +#define HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK 0x00000002L +#define HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK 0x00010000L +#define HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK 0x00020000L +#define mmHDP_MEM_POWER_CTRL_BASE_IDX 0 + +static void hdp_v4_0_flush_hdp(struct amdgpu_device *adev, + struct amdgpu_ring *ring) +{ + if (!ring || !ring->funcs->emit_wreg) + WREG32_NO_KIQ((adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); + else + amdgpu_ring_emit_wreg(ring, (adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL) >> 2, 0); +} + +static void hdp_v4_0_invalidate_hdp(struct amdgpu_device *adev, + struct amdgpu_ring *ring) +{ + if (!ring || !ring->funcs->emit_wreg) + WREG32_SOC15_NO_KIQ(HDP, 0, mmHDP_READ_CACHE_INVALIDATE, 1); + else + amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET( + HDP, 0, mmHDP_READ_CACHE_INVALIDATE), 1); +} + +static void hdp_v4_0_reset_ras_error_count(struct amdgpu_device *adev) +{ + if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__HDP)) + return; + /*read back hdp ras counter to reset it to 0 */ + RREG32_SOC15(HDP, 0, mmHDP_EDC_CNT); +} + +static void hdp_v4_0_update_clock_gating(struct amdgpu_device *adev, + bool enable) +{ + uint32_t def, data; + + if (adev->asic_type == CHIP_VEGA10 || + adev->asic_type == CHIP_VEGA12 || + adev->asic_type == CHIP_RAVEN) { + def = data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS)); + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) + data |= HDP_MEM_POWER_LS__LS_ENABLE_MASK; + else + data &= ~HDP_MEM_POWER_LS__LS_ENABLE_MASK; + + if (def != data) + WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS), data); + } else { + def = data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_CTRL)); + + if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) + data |= HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK | + HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK | + HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK | + HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK; + else + data &= ~(HDP_MEM_POWER_CTRL__IPH_MEM_POWER_CTRL_EN_MASK | + HDP_MEM_POWER_CTRL__IPH_MEM_POWER_LS_EN_MASK | + HDP_MEM_POWER_CTRL__RC_MEM_POWER_CTRL_EN_MASK | + HDP_MEM_POWER_CTRL__RC_MEM_POWER_LS_EN_MASK); + + if (def != data) + WREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_CTRL), data); + } +} + +static void hdp_v4_0_get_clockgating_state(struct amdgpu_device *adev, + u32 *flags) +{ + int data; + + /* AMD_CG_SUPPORT_HDP_LS */ + data = RREG32(SOC15_REG_OFFSET(HDP, 0, mmHDP_MEM_POWER_LS)); + if (data & HDP_MEM_POWER_LS__LS_ENABLE_MASK) + *flags |= AMD_CG_SUPPORT_HDP_LS; +} + +static void hdp_v4_0_init_registers(struct amdgpu_device *adev) +{ + switch (adev->asic_type) { + case CHIP_ARCTURUS: + WREG32_FIELD15(HDP, 0, HDP_MMHUB_CNTL, HDP_MMHUB_GCC, 1); + break; + default: + break; + } + + WREG32_FIELD15(HDP, 0, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); + + WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8)); + WREG32_SOC15(HDP, 0, mmHDP_NONSURFACE_BASE_HI, (adev->gmc.vram_start >> 40)); +} + +const struct amdgpu_hdp_funcs hdp_v4_0_funcs = { + .flush_hdp = hdp_v4_0_flush_hdp, + .invalidate_hdp = hdp_v4_0_invalidate_hdp, + .reset_ras_error_count = hdp_v4_0_reset_ras_error_count, + .update_clock_gating = hdp_v4_0_update_clock_gating, + .get_clock_gating_state = hdp_v4_0_get_clockgating_state, + .init_registers = hdp_v4_0_init_registers, +}; |