[PATCH] drm/amdgpu: add drv_vram_usage_va for virt data exchange
Christian König
christian.koenig at amd.com
Mon Nov 21 08:24:07 UTC 2022
Am 18.11.22 um 03:56 schrieb Tong Liu01:
> For vram_usagebyfirmware_v2_2, fw_vram_reserve is not used. So
> fw_vram_usage_va is NULL, and cannot do virt data exchange
> anymore. Should add drv_vram_usage_va to do virt data exchange
> in vram_usagebyfirmware_v2_2 case. And refine some code style
> checks in pre add vram reservation logic patch
>
> Signed-off-by: Tong Liu01 <Tong.Liu01 at amd.com>
> ---
> .../gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 16 ++---
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 7 ++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h | 1 +
> drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 59 +++++++++++++------
> 4 files changed, 54 insertions(+), 29 deletions(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> index 9b97fa39d47a..e40df72c138a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
> @@ -104,7 +104,7 @@ void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev)
> static int amdgpu_atomfirmware_allocate_fb_v2_1(struct amdgpu_device *adev,
> struct vram_usagebyfirmware_v2_1 *fw_usage, int *usage_bytes)
> {
> - uint32_t start_addr, fw_size, drv_size;
> + u32 start_addr, fw_size, drv_size;
>
> start_addr = le32_to_cpu(fw_usage->start_address_in_kb);
> fw_size = le16_to_cpu(fw_usage->used_by_firmware_in_kb);
> @@ -116,7 +116,7 @@ static int amdgpu_atomfirmware_allocate_fb_v2_1(struct amdgpu_device *adev,
> drv_size);
>
> if ((start_addr & ATOM_VRAM_OPERATION_FLAGS_MASK) ==
> - (uint32_t)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
> + (u32)(ATOM_VRAM_BLOCK_SRIOV_MSG_SHARE_RESERVATION <<
> ATOM_VRAM_OPERATION_FLAGS_SHIFT)) {
> /* Firmware request VRAM reservation for SR-IOV */
> adev->mman.fw_vram_usage_start_offset = (start_addr &
> @@ -133,7 +133,7 @@ static int amdgpu_atomfirmware_allocate_fb_v2_1(struct amdgpu_device *adev,
> static int amdgpu_atomfirmware_allocate_fb_v2_2(struct amdgpu_device *adev,
> struct vram_usagebyfirmware_v2_2 *fw_usage, int *usage_bytes)
> {
> - uint32_t fw_start_addr, fw_size, drv_start_addr, drv_size;
> + u32 fw_start_addr, fw_size, drv_start_addr, drv_size;
>
> fw_start_addr = le32_to_cpu(fw_usage->fw_region_start_address_in_kb);
> fw_size = le16_to_cpu(fw_usage->used_by_firmware_in_kb);
> @@ -147,14 +147,16 @@ static int amdgpu_atomfirmware_allocate_fb_v2_2(struct amdgpu_device *adev,
> drv_start_addr,
> drv_size);
>
> - if ((fw_start_addr & (ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION << 30)) == 0) {
> + if ((fw_start_addr & (ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION <<
> + ATOM_VRAM_OPERATION_FLAGS_SHIFT)) == 0) {
> /* Firmware request VRAM reservation for SR-IOV */
> adev->mman.fw_vram_usage_start_offset = (fw_start_addr &
> (~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
> adev->mman.fw_vram_usage_size = fw_size << 10;
> }
>
> - if ((drv_start_addr & (ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION << 30)) == 0) {
> + if ((drv_start_addr & (ATOM_VRAM_BLOCK_NEEDS_NO_RESERVATION <<
> + ATOM_VRAM_OPERATION_FLAGS_SHIFT)) == 0) {
> /* driver request VRAM reservation for SR-IOV */
> adev->mman.drv_vram_usage_start_offset = (drv_start_addr &
> (~ATOM_VRAM_OPERATION_FLAGS_MASK)) << 10;
> @@ -172,8 +174,8 @@ int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev)
> vram_usagebyfirmware);
> struct vram_usagebyfirmware_v2_1 *fw_usage_v2_1;
> struct vram_usagebyfirmware_v2_2 *fw_usage_v2_2;
> - uint16_t data_offset;
> - uint8_t frev, crev;
> + u16 data_offset;
> + u8 frev, crev;
> int usage_bytes = 0;
>
> if (amdgpu_atom_parse_data_header(ctx, index, NULL, &frev, &crev, &data_offset)) {
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> index 52f2282411cb..dd8b6a11db9a 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
> @@ -1570,7 +1570,7 @@ static void amdgpu_ttm_drv_reserve_vram_fini(struct amdgpu_device *adev)
> {
> amdgpu_bo_free_kernel(&adev->mman.drv_vram_usage_reserved_bo,
> NULL,
> - NULL);
> + &adev->mman.drv_vram_usage_va);
Your indentations of the second like with "if"s and function parameters
like here still looks completely off.
> }
>
> /**
> @@ -1608,8 +1608,9 @@ static int amdgpu_ttm_fw_reserve_vram_init(struct amdgpu_device *adev)
> */
> static int amdgpu_ttm_drv_reserve_vram_init(struct amdgpu_device *adev)
> {
> - uint64_t vram_size = adev->gmc.visible_vram_size;
> + u64 vram_size = adev->gmc.visible_vram_size;
>
> + adev->mman.drv_vram_usage_va = NULL;
> adev->mman.drv_vram_usage_reserved_bo = NULL;
>
> if (adev->mman.drv_vram_usage_size == 0 ||
> @@ -1621,7 +1622,7 @@ static int amdgpu_ttm_drv_reserve_vram_init(struct amdgpu_device *adev)
> adev->mman.drv_vram_usage_size,
> AMDGPU_GEM_DOMAIN_VRAM,
> &adev->mman.drv_vram_usage_reserved_bo,
> - NULL);
> + &adev->mman.drv_vram_usage_va);
> }
>
> /*
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> index b391c8d076ff..b4d8ba2789f3 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.h
> @@ -90,6 +90,7 @@ struct amdgpu_mman {
> u64 drv_vram_usage_start_offset;
> u64 drv_vram_usage_size;
> struct amdgpu_bo *drv_vram_usage_reserved_bo;
> + void *drv_vram_usage_va;
>
> /* PAGE_SIZE'd BO for process memory r/w over SDMA. */
> struct amdgpu_bo *sdma_access_bo;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
> index a226a6c48fb7..e80033e24d48 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
> @@ -428,11 +428,18 @@ static void amdgpu_virt_add_bad_page(struct amdgpu_device *adev,
> struct eeprom_table_record bp;
> uint64_t retired_page;
> uint32_t bp_idx, bp_cnt;
> + void *vram_usage_va = NULL;
> +
> + if (adev->mman.fw_vram_usage_va != NULL) {
> + vram_usage_va = adev->mman.fw_vram_usage_va;
> + } else {
> + vram_usage_va = adev->mman.drv_vram_usage_va;
> + }
Please no {} for single line "if"s.
Apart from that looks sane of hand, but I'm not the right person to
fully judge the technical implementation.
Luben can you tale a look as well?
Thanks,
Christian.
>
> if (bp_block_size) {
> bp_cnt = bp_block_size / sizeof(uint64_t);
> for (bp_idx = 0; bp_idx < bp_cnt; bp_idx++) {
> - retired_page = *(uint64_t *)(adev->mman.fw_vram_usage_va +
> + retired_page = *(uint64_t *)(vram_usage_va +
> bp_block_offset + bp_idx * sizeof(uint64_t));
> bp.retired_page = retired_page;
>
> @@ -643,7 +650,11 @@ void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
> adev->virt.fw_reserve.p_vf2pf = NULL;
> adev->virt.vf2pf_update_interval_ms = 0;
>
> - if (adev->mman.fw_vram_usage_va != NULL) {
> + if (adev->mman.fw_vram_usage_va != NULL &&
> + adev->mman.drv_vram_usage_va != NULL) {
> + DRM_WARN("Currently fw_vram and drv_vram should not have values at the same time!");
> + } else if (adev->mman.fw_vram_usage_va != NULL ||
> + adev->mman.drv_vram_usage_va != NULL) {
> /* go through this logic in ip_init and reset to init workqueue*/
> amdgpu_virt_exchange_data(adev);
>
> @@ -666,32 +677,42 @@ void amdgpu_virt_exchange_data(struct amdgpu_device *adev)
> uint32_t bp_block_size = 0;
> struct amd_sriov_msg_pf2vf_info *pf2vf_v2 = NULL;
>
> - if (adev->mman.fw_vram_usage_va != NULL) {
> -
> - adev->virt.fw_reserve.p_pf2vf =
> - (struct amd_sriov_msg_pf2vf_info_header *)
> - (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
> - adev->virt.fw_reserve.p_vf2pf =
> - (struct amd_sriov_msg_vf2pf_info_header *)
> - (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10));
> + if (adev->mman.fw_vram_usage_va != NULL ||
> + adev->mman.drv_vram_usage_va != NULL) {
> +
> + if (adev->mman.fw_vram_usage_va != NULL) {
> + adev->virt.fw_reserve.p_pf2vf =
> + (struct amd_sriov_msg_pf2vf_info_header *)
> + (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
> + adev->virt.fw_reserve.p_vf2pf =
> + (struct amd_sriov_msg_vf2pf_info_header *)
> + (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10));
> + } else if (adev->mman.drv_vram_usage_va != NULL) {
> + adev->virt.fw_reserve.p_pf2vf =
> + (struct amd_sriov_msg_pf2vf_info_header *)
> + (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
> + adev->virt.fw_reserve.p_vf2pf =
> + (struct amd_sriov_msg_vf2pf_info_header *)
> + (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10));
> + }
>
> amdgpu_virt_read_pf2vf_data(adev);
> amdgpu_virt_write_vf2pf_data(adev);
>
> /* bad page handling for version 2 */
> if (adev->virt.fw_reserve.p_pf2vf->version == 2) {
> - pf2vf_v2 = (struct amd_sriov_msg_pf2vf_info *)adev->virt.fw_reserve.p_pf2vf;
> + pf2vf_v2 = (struct amd_sriov_msg_pf2vf_info *)adev->virt.fw_reserve.p_pf2vf;
>
> - bp_block_offset = ((uint64_t)pf2vf_v2->bp_block_offset_low & 0xFFFFFFFF) |
> - ((((uint64_t)pf2vf_v2->bp_block_offset_high) << 32) & 0xFFFFFFFF00000000);
> - bp_block_size = pf2vf_v2->bp_block_size;
> + bp_block_offset = ((uint64_t)pf2vf_v2->bp_block_offset_low & 0xFFFFFFFF) |
> + ((((uint64_t)pf2vf_v2->bp_block_offset_high) << 32) & 0xFFFFFFFF00000000);
> + bp_block_size = pf2vf_v2->bp_block_size;
>
> - if (bp_block_size && !adev->virt.ras_init_done)
> - amdgpu_virt_init_ras_err_handler_data(adev);
> + if (bp_block_size && !adev->virt.ras_init_done)
> + amdgpu_virt_init_ras_err_handler_data(adev);
>
> - if (adev->virt.ras_init_done)
> - amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size);
> - }
> + if (adev->virt.ras_init_done)
> + amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size);
> + }
> }
> }
>
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