From 90c448fef3120d79bd8031665213981c966dbaf4 Mon Sep 17 00:00:00 2001 From: Shashank Sharma Date: Wed, 30 Oct 2024 15:39:42 +0100 Subject: [PATCH 3085/5403] drm/amdgpu: add new AMDGPU_INFO subquery for userq objects This patch adds a new subquery (AMDGPU_INFO_UQ_FW_AREAS) in AMDGPU_INFO_IOCTL to get the size and alignment of shadow and csa objects from the FW setup. This information is required for the userqueue consumers. V2: Added Alex's suggestions and addressed review comments: - make this query IP specific (GFX/SDMA etc) - give a better title (AMDGPU_INFO_UQ_METADATA) - restructured the code as per sample code shared by Alex V3: Split the UAPI patch from shadow_size_fn modifications V4: Addressed review comments from UAPI review (Marek/Pierre-Eric) - Change the query name to AMDGPU_INFO_UQ_FW_AREAS - remove unused inpur parameter for AMDGPU_HW_IP* UAPI link: https://gitlab.freedesktop.org/mesa/drm/-/merge_requests/400/ Cc: Alex Deucher Cc: Christian Koenig Cc: Arvind Yadav Reviewed-by: Alex Deucher Signed-off-by: Shashank Sharma Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 36 ++++++++++++++++++++++ include/uapi/drm/amdgpu_drm.h | 40 +++++++++++++++++++++++++ 2 files changed, 76 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 1fcf0ef06315..2e07776dd408 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -371,6 +371,26 @@ static int amdgpu_firmware_info(struct drm_amdgpu_info_firmware *fw_info, return 0; } +static int amdgpu_userq_metadata_info_gfx(struct amdgpu_device *adev, + struct drm_amdgpu_info *info, + struct drm_amdgpu_info_uq_metadata_gfx *meta) +{ + int ret = -EOPNOTSUPP; + + if (adev->gfx.funcs->get_gfx_shadow_info) { + struct amdgpu_gfx_shadow_info shadow = {}; + + adev->gfx.funcs->get_gfx_shadow_info(adev, &shadow, true); + meta->shadow_size = shadow.shadow_size; + meta->shadow_alignment = shadow.shadow_alignment; + meta->csa_size = shadow.csa_size; + meta->csa_alignment = shadow.csa_alignment; + ret = 0; + } + + return ret; +} + static int amdgpu_hw_ip_info(struct amdgpu_device *adev, struct drm_amdgpu_info *info, struct drm_amdgpu_info_hw_ip *result) @@ -1294,6 +1314,22 @@ int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return copy_to_user(out, &gpuvm_fault, min((size_t)size, sizeof(gpuvm_fault))) ? -EFAULT : 0; } + case AMDGPU_INFO_UQ_FW_AREAS: { + struct drm_amdgpu_info_uq_metadata meta_info = {}; + + switch (info->query_hw_ip.type) { + case AMDGPU_HW_IP_GFX: + ret = amdgpu_userq_metadata_info_gfx(adev, info, &meta_info.gfx); + if (ret) + return ret; + + ret = copy_to_user(out, &meta_info, + min((size_t)size, sizeof(meta_info))) ? -EFAULT : 0; + return 0; + default: + return -EINVAL; + } + } default: DRM_DEBUG_KMS("Invalid request %d\n", info->query); return -EINVAL; diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 72dc16dbca7f..5dbd9037afe7 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -1193,6 +1193,8 @@ struct drm_amdgpu_cs_chunk_cp_gfx_shadow { #define AMDGPU_INFO_MAX_IBS 0x22 /* query last page fault info */ #define AMDGPU_INFO_GPUVM_FAULT 0x23 +/* query FW object size and alignment */ +#define AMDGPU_INFO_UQ_FW_AREAS 0x24 #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0 #define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff @@ -1469,6 +1471,27 @@ struct drm_amdgpu_info_hw_ip { __u32 ip_discovery_version; }; +/* GFX metadata BO sizes and alignment info (in bytes) */ +struct drm_amdgpu_info_uq_fw_areas_gfx { + /* shadow area size */ + __u32 shadow_size; + /* shadow area base virtual mem alignment */ + __u32 shadow_alignment; + /* context save area size */ + __u32 csa_size; + /* context save area base virtual mem alignment */ + __u32 csa_alignment; +}; + +/* IP specific fw related information used in the + * subquery AMDGPU_INFO_UQ_FW_AREAS + */ +struct drm_amdgpu_info_uq_fw_areas { + union { + struct drm_amdgpu_info_uq_fw_areas_gfx gfx; + }; +}; + struct drm_amdgpu_info_num_handles { /** Max handles as supported by firmware for UVD */ __u32 uvd_max_handles; @@ -1532,6 +1555,23 @@ struct drm_amdgpu_info_gpuvm_fault { __u32 vmhub; }; +struct drm_amdgpu_info_uq_metadata_gfx { + /* shadow area size for gfx11 */ + __u32 shadow_size; + /* shadow area base virtual alignment for gfx11 */ + __u32 shadow_alignment; + /* context save area size for gfx11 */ + __u32 csa_size; + /* context save area base virtual alignment for gfx11 */ + __u32 csa_alignment; +}; + +struct drm_amdgpu_info_uq_metadata { + union { + struct drm_amdgpu_info_uq_metadata_gfx gfx; + }; +}; + /* * Supported GPU families */ -- 2.54.0