From 2b6cd9779707f1f7974205320a058ef80aa2cdd4 Mon Sep 17 00:00:00 2001 From: Eric Huang Date: Thu, 14 Apr 2016 17:26:07 -0400 Subject: [PATCH] drm/amd/amdgpu: add power gating initialization support for GFX8.0 Signed-off-by: Eric Huang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 14 + drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c | 353 +++++++++++++++++++++++++- 2 files changed, 364 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 5399f3a2453f..6cc174f9d583 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -1076,6 +1076,20 @@ struct amdgpu_rlc { /* safe mode for updating CG/PG state */ bool in_safe_mode; const struct amdgpu_rlc_funcs *funcs; + + /* for firmware data */ + u32 save_and_restore_offset; + u32 clear_state_descriptor_offset; + u32 avail_scratch_ram_locations; + u32 reg_restore_list_size; + u32 reg_list_format_start; + u32 reg_list_format_separate_start; + u32 starting_offsets_start; + u32 reg_list_format_size_bytes; + u32 reg_list_size_bytes; + + u32 *register_list_format; + u32 *register_restore; }; struct amdgpu_mec { diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c index ce1054d0f391..89d7b1576a66 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c @@ -86,6 +86,8 @@ enum { BPM_REG_FGCG_MAX }; +#define RLC_FormatDirectRegListLength 14 + MODULE_FIRMWARE("amdgpu/carrizo_ce.bin"); MODULE_FIRMWARE("amdgpu/carrizo_pfp.bin"); MODULE_FIRMWARE("amdgpu/carrizo_me.bin"); @@ -633,6 +635,7 @@ static void gfx_v8_0_set_ring_funcs(struct amdgpu_device *adev); static void gfx_v8_0_set_irq_funcs(struct amdgpu_device *adev); static void gfx_v8_0_set_gds_init(struct amdgpu_device *adev); static void gfx_v8_0_set_rlc_funcs(struct amdgpu_device *adev); +static u32 gfx_v8_0_get_csb_size(struct amdgpu_device *adev); static void gfx_v8_0_init_golden_registers(struct amdgpu_device *adev) { @@ -838,6 +841,8 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev) struct amdgpu_firmware_info *info = NULL; const struct common_firmware_header *header = NULL; const struct gfx_firmware_header_v1_0 *cp_hdr; + const struct rlc_firmware_header_v2_0 *rlc_hdr; + unsigned int *tmp = NULL, i; DRM_DEBUG("\n"); @@ -905,9 +910,49 @@ static int gfx_v8_0_init_microcode(struct amdgpu_device *adev) if (err) goto out; err = amdgpu_ucode_validate(adev->gfx.rlc_fw); - cp_hdr = (const struct gfx_firmware_header_v1_0 *)adev->gfx.rlc_fw->data; - adev->gfx.rlc_fw_version = le32_to_cpu(cp_hdr->header.ucode_version); - adev->gfx.rlc_feature_version = le32_to_cpu(cp_hdr->ucode_feature_version); + rlc_hdr = (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data; + adev->gfx.rlc_fw_version = le32_to_cpu(rlc_hdr->header.ucode_version); + adev->gfx.rlc_feature_version = le32_to_cpu(rlc_hdr->ucode_feature_version); + + adev->gfx.rlc.save_and_restore_offset = + le32_to_cpu(rlc_hdr->save_and_restore_offset); + adev->gfx.rlc.clear_state_descriptor_offset = + le32_to_cpu(rlc_hdr->clear_state_descriptor_offset); + adev->gfx.rlc.avail_scratch_ram_locations = + le32_to_cpu(rlc_hdr->avail_scratch_ram_locations); + adev->gfx.rlc.reg_restore_list_size = + le32_to_cpu(rlc_hdr->reg_restore_list_size); + adev->gfx.rlc.reg_list_format_start = + le32_to_cpu(rlc_hdr->reg_list_format_start); + adev->gfx.rlc.reg_list_format_separate_start = + le32_to_cpu(rlc_hdr->reg_list_format_separate_start); + adev->gfx.rlc.starting_offsets_start = + le32_to_cpu(rlc_hdr->starting_offsets_start); + adev->gfx.rlc.reg_list_format_size_bytes = + le32_to_cpu(rlc_hdr->reg_list_format_size_bytes); + adev->gfx.rlc.reg_list_size_bytes = + le32_to_cpu(rlc_hdr->reg_list_size_bytes); + + adev->gfx.rlc.register_list_format = + kmalloc(adev->gfx.rlc.reg_list_format_size_bytes + + adev->gfx.rlc.reg_list_size_bytes, GFP_KERNEL); + + if (!adev->gfx.rlc.register_list_format) { + err = -ENOMEM; + goto out; + } + + tmp = (unsigned int *)((uint64_t)rlc_hdr + + le32_to_cpu(rlc_hdr->reg_list_format_array_offset_bytes)); + for (i = 0 ; i < (rlc_hdr->reg_list_format_size_bytes >> 2); i++) + adev->gfx.rlc.register_list_format[i] = le32_to_cpu(tmp[i]); + + adev->gfx.rlc.register_restore = adev->gfx.rlc.register_list_format + i; + + tmp = (unsigned int *)((uint64_t)rlc_hdr + + le32_to_cpu(rlc_hdr->reg_list_array_offset_bytes)); + for (i = 0 ; i < (rlc_hdr->reg_list_size_bytes >> 2); i++) + adev->gfx.rlc.register_restore[i] = le32_to_cpu(tmp[i]); snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mec.bin", chip_name); err = request_firmware(&adev->gfx.mec_fw, fw_name, adev->dev); @@ -1008,6 +1053,148 @@ out: return err; } +static void gfx_v8_0_get_csb_buffer(struct amdgpu_device *adev, + volatile u32 *buffer) +{ + u32 count = 0, i; + const struct cs_section_def *sect = NULL; + const struct cs_extent_def *ext = NULL; + + if (adev->gfx.rlc.cs_data == NULL) + return; + if (buffer == NULL) + return; + + buffer[count++] = cpu_to_le32(PACKET3(PACKET3_PREAMBLE_CNTL, 0)); + buffer[count++] = cpu_to_le32(PACKET3_PREAMBLE_BEGIN_CLEAR_STATE); + + buffer[count++] = cpu_to_le32(PACKET3(PACKET3_CONTEXT_CONTROL, 1)); + buffer[count++] = cpu_to_le32(0x80000000); + buffer[count++] = cpu_to_le32(0x80000000); + + for (sect = adev->gfx.rlc.cs_data; sect->section != NULL; ++sect) { + for (ext = sect->section; ext->extent != NULL; ++ext) { + if (sect->id == SECT_CONTEXT) { + buffer[count++] = + cpu_to_le32(PACKET3(PACKET3_SET_CONTEXT_REG, ext->reg_count)); + buffer[count++] = cpu_to_le32(ext->reg_index - + PACKET3_SET_CONTEXT_REG_START); + for (i = 0; i < ext->reg_count; i++) + buffer[count++] = cpu_to_le32(ext->extent[i]); + } else { + return; + } + } + } + + buffer[count++] = cpu_to_le32(PACKET3(PACKET3_SET_CONTEXT_REG, 2)); + buffer[count++] = cpu_to_le32(mmPA_SC_RASTER_CONFIG - + PACKET3_SET_CONTEXT_REG_START); + switch (adev->asic_type) { + case CHIP_TONGA: + buffer[count++] = cpu_to_le32(0x16000012); + buffer[count++] = cpu_to_le32(0x0000002A); + break; + case CHIP_FIJI: + buffer[count++] = cpu_to_le32(0x3a00161a); + buffer[count++] = cpu_to_le32(0x0000002e); + break; + case CHIP_TOPAZ: + case CHIP_CARRIZO: + buffer[count++] = cpu_to_le32(0x00000002); + buffer[count++] = cpu_to_le32(0x00000000); + break; + case CHIP_STONEY: + buffer[count++] = cpu_to_le32(0x00000000); + buffer[count++] = cpu_to_le32(0x00000000); + break; + default: + buffer[count++] = cpu_to_le32(0x00000000); + buffer[count++] = cpu_to_le32(0x00000000); + break; + } + + buffer[count++] = cpu_to_le32(PACKET3(PACKET3_PREAMBLE_CNTL, 0)); + buffer[count++] = cpu_to_le32(PACKET3_PREAMBLE_END_CLEAR_STATE); + + buffer[count++] = cpu_to_le32(PACKET3(PACKET3_CLEAR_STATE, 0)); + buffer[count++] = cpu_to_le32(0); +} + +static void gfx_v8_0_rlc_fini(struct amdgpu_device *adev) +{ + int r; + + /* clear state block */ + if (adev->gfx.rlc.clear_state_obj) { + r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, false); + if (unlikely(r != 0)) + dev_warn(adev->dev, "(%d) reserve RLC c bo failed\n", r); + amdgpu_bo_unpin(adev->gfx.rlc.clear_state_obj); + amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj); + + amdgpu_bo_unref(&adev->gfx.rlc.clear_state_obj); + adev->gfx.rlc.clear_state_obj = NULL; + } +} + +static int gfx_v8_0_rlc_init(struct amdgpu_device *adev) +{ + volatile u32 *dst_ptr; + u32 dws; + const struct cs_section_def *cs_data; + int r; + + adev->gfx.rlc.cs_data = vi_cs_data; + + cs_data = adev->gfx.rlc.cs_data; + + if (cs_data) { + /* clear state block */ + adev->gfx.rlc.clear_state_size = dws = gfx_v8_0_get_csb_size(adev); + + if (adev->gfx.rlc.clear_state_obj == NULL) { + r = amdgpu_bo_create(adev, dws * 4, PAGE_SIZE, true, + AMDGPU_GEM_DOMAIN_VRAM, + AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, + NULL, NULL, + &adev->gfx.rlc.clear_state_obj); + if (r) { + dev_warn(adev->dev, "(%d) create RLC c bo failed\n", r); + gfx_v8_0_rlc_fini(adev); + return r; + } + } + r = amdgpu_bo_reserve(adev->gfx.rlc.clear_state_obj, false); + if (unlikely(r != 0)) { + gfx_v8_0_rlc_fini(adev); + return r; + } + r = amdgpu_bo_pin(adev->gfx.rlc.clear_state_obj, AMDGPU_GEM_DOMAIN_VRAM, + &adev->gfx.rlc.clear_state_gpu_addr); + if (r) { + amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj); + dev_warn(adev->dev, "(%d) pin RLC c bo failed\n", r); + gfx_v8_0_rlc_fini(adev); + return r; + } + + r = amdgpu_bo_kmap(adev->gfx.rlc.clear_state_obj, (void **)&adev->gfx.rlc.cs_ptr); + if (r) { + dev_warn(adev->dev, "(%d) map RLC c bo failed\n", r); + gfx_v8_0_rlc_fini(adev); + return r; + } + /* set up the cs buffer */ + dst_ptr = adev->gfx.rlc.cs_ptr; + gfx_v8_0_get_csb_buffer(adev, dst_ptr); + amdgpu_bo_kunmap(adev->gfx.rlc.clear_state_obj); + amdgpu_bo_unreserve(adev->gfx.rlc.clear_state_obj); + } + + return 0; +} + static void gfx_v8_0_mec_fini(struct amdgpu_device *adev) { int r; @@ -1681,6 +1868,12 @@ static int gfx_v8_0_sw_init(void *handle) return r; } + r = gfx_v8_0_rlc_init(adev); + if (r) { + DRM_ERROR("Failed to init rlc BOs!\n"); + return r; + } + r = gfx_v8_0_mec_init(adev); if (r) { DRM_ERROR("Failed to init MEC BOs!\n"); @@ -1780,6 +1973,10 @@ static int gfx_v8_0_sw_fini(void *handle) gfx_v8_0_mec_fini(adev); + gfx_v8_0_rlc_fini(adev); + + kfree(adev->gfx.rlc.register_list_format); + return 0; } @@ -3322,6 +3519,154 @@ static void gfx_v8_0_enable_gui_idle_interrupt(struct amdgpu_device *adev, WREG32(mmCP_INT_CNTL_RING0, tmp); } +static void gfx_v8_0_init_csb(struct amdgpu_device *adev) +{ + /* csib */ + WREG32(mmRLC_CSIB_ADDR_HI, + adev->gfx.rlc.clear_state_gpu_addr >> 32); + WREG32(mmRLC_CSIB_ADDR_LO, + adev->gfx.rlc.clear_state_gpu_addr & 0xfffffffc); + WREG32(mmRLC_CSIB_LENGTH, + adev->gfx.rlc.clear_state_size); +} + +static void gfx_v8_0_parse_ind_reg_list(int *register_list_format, + int ind_offset, + int list_size, + int *unique_indices, + int *indices_count, + int max_indices, + int *ind_start_offsets, + int *offset_count, + int max_offset) +{ + int indices; + bool new_entry = true; + + for (; ind_offset < list_size; ind_offset++) { + + if (new_entry) { + new_entry = false; + ind_start_offsets[*offset_count] = ind_offset; + *offset_count = *offset_count + 1; + BUG_ON(*offset_count >= max_offset); + } + + if (register_list_format[ind_offset] == 0xFFFFFFFF) { + new_entry = true; + continue; + } + + ind_offset += 2; + + /* look for the matching indice */ + for (indices = 0; + indices < *indices_count; + indices++) { + if (unique_indices[indices] == + register_list_format[ind_offset]) + break; + } + + if (indices >= *indices_count) { + unique_indices[*indices_count] = + register_list_format[ind_offset]; + indices = *indices_count; + *indices_count = *indices_count + 1; + BUG_ON(*indices_count >= max_indices); + } + + register_list_format[ind_offset] = indices; + } +} + +static int gfx_v8_0_init_save_restore_list(struct amdgpu_device *adev) +{ + int i, temp, data; + int unique_indices[] = {0, 0, 0, 0, 0, 0, 0, 0}; + int indices_count = 0; + int indirect_start_offsets[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; + int offset_count = 0; + + int list_size; + unsigned int *register_list_format = + kmalloc(adev->gfx.rlc.reg_list_format_size_bytes, GFP_KERNEL); + if (register_list_format == NULL) + return -ENOMEM; + memcpy(register_list_format, adev->gfx.rlc.register_list_format, + adev->gfx.rlc.reg_list_format_size_bytes); + + gfx_v8_0_parse_ind_reg_list(register_list_format, + RLC_FormatDirectRegListLength, + adev->gfx.rlc.reg_list_format_size_bytes >> 2, + unique_indices, + &indices_count, + sizeof(unique_indices) / sizeof(int), + indirect_start_offsets, + &offset_count, + sizeof(indirect_start_offsets)/sizeof(int)); + + /* save and restore list */ + temp = RREG32(mmRLC_SRM_CNTL); + temp |= RLC_SRM_CNTL__AUTO_INCR_ADDR_MASK; + WREG32(mmRLC_SRM_CNTL, temp); + + WREG32(mmRLC_SRM_ARAM_ADDR, 0); + for (i = 0; i < adev->gfx.rlc.reg_list_size_bytes >> 2; i++) + WREG32(mmRLC_SRM_ARAM_DATA, adev->gfx.rlc.register_restore[i]); + + /* indirect list */ + WREG32(mmRLC_GPM_SCRATCH_ADDR, adev->gfx.rlc.reg_list_format_start); + for (i = 0; i < adev->gfx.rlc.reg_list_format_size_bytes >> 2; i++) + WREG32(mmRLC_GPM_SCRATCH_DATA, register_list_format[i]); + + list_size = adev->gfx.rlc.reg_list_size_bytes >> 2; + list_size = list_size >> 1; + WREG32(mmRLC_GPM_SCRATCH_ADDR, adev->gfx.rlc.reg_restore_list_size); + WREG32(mmRLC_GPM_SCRATCH_DATA, list_size); + + /* starting offsets starts */ + WREG32(mmRLC_GPM_SCRATCH_ADDR, + adev->gfx.rlc.starting_offsets_start); + for (i = 0; i < sizeof(indirect_start_offsets)/sizeof(int); i++) + WREG32(mmRLC_GPM_SCRATCH_DATA, + indirect_start_offsets[i]); + + /* unique indices */ + temp = mmRLC_SRM_INDEX_CNTL_ADDR_0; + data = mmRLC_SRM_INDEX_CNTL_DATA_0; + for (i = 0; i < sizeof(unique_indices) / sizeof(int); i++) { + amdgpu_mm_wreg(adev, temp + i, unique_indices[i] & 0x3FFFF, false); + amdgpu_mm_wreg(adev, data + i, unique_indices[i] >> 20, false); + } + kfree(register_list_format); + + return 0; +} + +static void gfx_v8_0_enable_save_restore_machine(struct amdgpu_device *adev) +{ + uint32_t data; + + data = RREG32(mmRLC_SRM_CNTL); + data |= RLC_SRM_CNTL__SRM_ENABLE_MASK; + WREG32(mmRLC_SRM_CNTL, data); +} + +static void gfx_v8_0_init_pg(struct amdgpu_device *adev) +{ + if (adev->pg_flags & (AMD_PG_SUPPORT_GFX_PG | + AMD_PG_SUPPORT_GFX_SMG | + AMD_PG_SUPPORT_GFX_DMG | + AMD_PG_SUPPORT_CP | + AMD_PG_SUPPORT_GDS | + AMD_PG_SUPPORT_RLC_SMU_HS)) { + gfx_v8_0_init_csb(adev); + gfx_v8_0_init_save_restore_list(adev); + gfx_v8_0_enable_save_restore_machine(adev); + } +} + void gfx_v8_0_rlc_stop(struct amdgpu_device *adev) { u32 tmp = RREG32(mmRLC_CNTL); @@ -3401,6 +3746,8 @@ static int gfx_v8_0_rlc_resume(struct amdgpu_device *adev) gfx_v8_0_rlc_reset(adev); + gfx_v8_0_init_pg(adev); + if (!adev->pp_enabled) { if (!adev->firmware.smu_load) { /* legacy rlc firmware loading */ -- 2.20.1