diff options
author | Tianci.Yin <tianci.yin@amd.com> | 2019-09-30 13:43:31 +0800 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2019-10-17 16:31:31 -0400 |
commit | efe4f00077800d767e9899d12b02f1e1a1eb556b (patch) | |
tree | e4dabb23203cd1725bcd33901a01ff5a86568f36 /drivers/gpu/drm/amd | |
parent | 66e111292b9044066472cb8d653126294e01ec43 (diff) |
drm/amdgpu/atomfirmware: add memory training related helper functions(v3)
parse firmware to get memory training capability and fb location.
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu.h | 8 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c | 5 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 136 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 |
4 files changed, 150 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index ef195f293000..98b0cf8bd83d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -288,6 +288,9 @@ struct amdgpu_ip_block_version { const struct amd_ip_funcs *funcs; }; +#define HW_REV(_Major, _Minor, _Rev) \ + ((((uint32_t) (_Major)) << 16) | ((uint32_t) (_Minor) << 8) | ((uint32_t) (_Rev))) + struct amdgpu_ip_block { struct amdgpu_ip_block_status status; const struct amdgpu_ip_block_version *version; @@ -627,6 +630,11 @@ struct amdgpu_fw_vram_usage { u64 size; struct amdgpu_bo *reserved_bo; void *va; + + /* Offset on the top of VRAM, used as c2p write buffer. + */ + u64 mem_train_fb_loc; + bool mem_train_support; }; /* diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c index 1c9d40f97a9b..72232fccf61a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atombios.c @@ -2038,6 +2038,11 @@ int amdgpu_atombios_init(struct amdgpu_device *adev) if (adev->is_atom_fw) { amdgpu_atomfirmware_scratch_regs_init(adev); amdgpu_atomfirmware_allocate_fb_scratch(adev); + ret = amdgpu_atomfirmware_get_mem_train_fb_loc(adev); + if (ret) { + DRM_ERROR("Failed to get mem train fb location.\n"); + return ret; + } } else { amdgpu_atombios_scratch_regs_init(adev); amdgpu_atombios_allocate_fb_scratch(adev); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c index 39fd8ae5a822..ff4eb96bdfb5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c @@ -27,6 +27,7 @@ #include "amdgpu_atomfirmware.h" #include "atom.h" #include "atombios.h" +#include "soc15_hw_ip.h" bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev) { @@ -462,3 +463,138 @@ int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev) } return -EINVAL; } + +/* + * Check if VBIOS supports GDDR6 training data save/restore + */ +static bool gddr6_mem_train_vbios_support(struct amdgpu_device *adev) +{ + uint16_t data_offset; + int index; + + index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, + firmwareinfo); + if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, NULL, + NULL, NULL, &data_offset)) { + struct atom_firmware_info_v3_1 *firmware_info = + (struct atom_firmware_info_v3_1 *)(adev->mode_info.atom_context->bios + + data_offset); + + DRM_DEBUG("atom firmware capability:0x%08x.\n", + le32_to_cpu(firmware_info->firmware_capability)); + + if (le32_to_cpu(firmware_info->firmware_capability) & + ATOM_FIRMWARE_CAP_ENABLE_2STAGE_BIST_TRAINING) + return true; + } + + return false; +} + +static int gddr6_mem_train_support(struct amdgpu_device *adev) +{ + int ret; + uint32_t major, minor, revision, hw_v; + + if (gddr6_mem_train_vbios_support(adev)) { + amdgpu_discovery_get_ip_version(adev, MP0_HWID, &major, &minor, &revision); + hw_v = HW_REV(major, minor, revision); + /* + * treat 0 revision as a special case since register for MP0 and MMHUB is missing + * for some Navi10 A0, preventing driver from discovering the hwip information since + * none of the functions will be initialized, it should not cause any problems + */ + switch (hw_v) { + case HW_REV(11, 0, 0): + case HW_REV(11, 0, 5): + ret = 1; + break; + default: + DRM_ERROR("memory training vbios supports but psp hw(%08x)" + " doesn't support!\n", hw_v); + ret = -1; + break; + } + } else { + ret = 0; + hw_v = -1; + } + + + DRM_DEBUG("mp0 hw_v %08x, ret:%d.\n", hw_v, ret); + return ret; +} + +int amdgpu_atomfirmware_get_mem_train_fb_loc(struct amdgpu_device *adev) +{ + struct atom_context *ctx = adev->mode_info.atom_context; + unsigned char *bios = ctx->bios; + struct vram_reserve_block *reserved_block; + int index, block_number; + uint8_t frev, crev; + uint16_t data_offset, size; + uint32_t start_address_in_kb; + uint64_t offset; + int ret; + + adev->fw_vram_usage.mem_train_support = false; + + if (adev->asic_type != CHIP_NAVI10 && + adev->asic_type != CHIP_NAVI14) + return 0; + + if (amdgpu_sriov_vf(adev)) + return 0; + + ret = gddr6_mem_train_support(adev); + if (ret == -1) + return -EINVAL; + else if (ret == 0) + return 0; + + index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, + vram_usagebyfirmware); + ret = amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, + &data_offset); + if (ret == 0) { + DRM_ERROR("parse data header failed.\n"); + return -EINVAL; + } + + DRM_DEBUG("atom firmware common table header size:0x%04x, frev:0x%02x," + " crev:0x%02x, data_offset:0x%04x.\n", size, frev, crev, data_offset); + /* only support 2.1+ */ + if (((uint16_t)frev << 8 | crev) < 0x0201) { + DRM_ERROR("frev:0x%02x, crev:0x%02x < 2.1 !\n", frev, crev); + return -EINVAL; + } + + reserved_block = (struct vram_reserve_block *) + (bios + data_offset + sizeof(struct atom_common_table_header)); + block_number = ((unsigned int)size - sizeof(struct atom_common_table_header)) + / sizeof(struct vram_reserve_block); + reserved_block += (block_number > 0) ? block_number-1 : 0; + DRM_DEBUG("block_number:0x%04x, last block: 0x%08xkb sz, %dkb fw, %dkb drv.\n", + block_number, + le32_to_cpu(reserved_block->start_address_in_kb), + le16_to_cpu(reserved_block->used_by_firmware_in_kb), + le16_to_cpu(reserved_block->used_by_driver_in_kb)); + if (reserved_block->used_by_firmware_in_kb > 0) { + start_address_in_kb = le32_to_cpu(reserved_block->start_address_in_kb); + offset = (uint64_t)start_address_in_kb * ONE_KiB; + if ((offset & (ONE_MiB - 1)) < (4 * ONE_KiB + 1) ) { + offset -= ONE_MiB; + } + + offset &= ~(ONE_MiB - 1); + adev->fw_vram_usage.mem_train_fb_loc = offset; + adev->fw_vram_usage.mem_train_support = true; + DRM_DEBUG("mem_train_fb_loc:0x%09llx.\n", offset); + ret = 0; + } else { + DRM_ERROR("used_by_firmware_in_kb is 0!\n"); + ret = -EINVAL; + } + + return ret; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h index 53449fc7baf4..f871af5ea6f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h @@ -31,6 +31,7 @@ void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev); int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_vram_info(struct amdgpu_device *adev, int *vram_width, int *vram_type, int *vram_vendor); +int amdgpu_atomfirmware_get_mem_train_fb_loc(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev); bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev); |