diff options
Diffstat (limited to 'common/recipes-kernel/linux/files/0038-drm-amdgpu-implement-cgs-interface-to-query-system-i.patch')
| -rw-r--r-- | common/recipes-kernel/linux/files/0038-drm-amdgpu-implement-cgs-interface-to-query-system-i.patch | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/files/0038-drm-amdgpu-implement-cgs-interface-to-query-system-i.patch b/common/recipes-kernel/linux/files/0038-drm-amdgpu-implement-cgs-interface-to-query-system-i.patch new file mode 100644 index 00000000..555a7398 --- /dev/null +++ b/common/recipes-kernel/linux/files/0038-drm-amdgpu-implement-cgs-interface-to-query-system-i.patch @@ -0,0 +1,114 @@ +From 2ba0b9d24785f41d0ab71d3d58c8cc14df71e24c Mon Sep 17 00:00:00 2001 +From: Rex Zhu <Rex.Zhu@amd.com> +Date: Wed, 23 Sep 2015 20:11:54 +0800 +Subject: [PATCH 0038/1110] drm/amdgpu: implement cgs interface to query system + info + +Add a query to get the bus number and function of the +device. + +Signed-off-by: Rex Zhu <Rex.Zhu@amd.com> +Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c | 23 +++++++++++++++++++++++ + drivers/gpu/drm/amd/include/cgs_common.h | 23 +++++++++++++++++++++++ + 2 files changed, 46 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +index f901cdc..19f46d0 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cgs.c +@@ -736,6 +736,28 @@ static int amdgpu_cgs_get_firmware_info(void *cgs_device, + return 0; + } + ++static int amdgpu_cgs_query_system_info(void *cgs_device, ++ struct cgs_system_info *sys_info) ++{ ++ CGS_FUNC_ADEV; ++ ++ if (NULL == sys_info) ++ return -ENODEV; ++ ++ if (sizeof(struct cgs_system_info) != sys_info->size) ++ return -ENODEV; ++ ++ switch (sys_info->info_id) { ++ case CGS_SYSTEM_INFO_ADAPTER_BDF_ID: ++ sys_info->value = adev->pdev->devfn | (adev->pdev->bus->number << 8); ++ break; ++ default: ++ return -ENODEV; ++ } ++ ++ return 0; ++} ++ + /** \brief evaluate acpi namespace object, handle or pathname must be valid + * \param cgs_device + * \param info input/output arguments for the control method +@@ -985,6 +1007,7 @@ static const struct cgs_ops amdgpu_cgs_ops = { + amdgpu_cgs_set_powergating_state, + amdgpu_cgs_set_clockgating_state, + amdgpu_cgs_call_acpi_method, ++ amdgpu_cgs_query_system_info, + }; + + static const struct cgs_os_ops amdgpu_cgs_os_ops = { +diff --git a/drivers/gpu/drm/amd/include/cgs_common.h b/drivers/gpu/drm/amd/include/cgs_common.h +index 8bf6ee5..5ea8db0 100644 +--- a/drivers/gpu/drm/amd/include/cgs_common.h ++++ b/drivers/gpu/drm/amd/include/cgs_common.h +@@ -105,6 +105,21 @@ enum cgs_ucode_id { + CGS_UCODE_ID_MAXIMUM, + }; + ++enum cgs_system_info_id { ++ CGS_SYSTEM_INFO_ADAPTER_BDF_ID = 1, ++ CGS_SYSTEM_INFO_ID_MAXIMUM, ++}; ++ ++struct cgs_system_info { ++ uint64_t size; ++ uint64_t info_id; ++ union { ++ void *ptr; ++ uint64_t value; ++ }; ++ uint64_t padding[13]; ++}; ++ + /** + * struct cgs_clock_limits - Clock limits + * +@@ -533,6 +548,10 @@ typedef int (*cgs_call_acpi_method)(void *cgs_device, + uint32_t output_count, + uint32_t input_size, + uint32_t output_size); ++ ++typedef int (*cgs_query_system_info)(void *cgs_device, ++ struct cgs_system_info *sys_info); ++ + struct cgs_ops { + /* memory management calls (similar to KFD interface) */ + cgs_gpu_mem_info_t gpu_mem_info; +@@ -575,6 +594,8 @@ struct cgs_ops { + cgs_set_clockgating_state set_clockgating_state; + /* ACPI */ + cgs_call_acpi_method call_acpi_method; ++ /* get system info */ ++ cgs_query_system_info query_system_info; + }; + + struct cgs_os_ops; /* To be define in OS-specific CGS header */ +@@ -663,5 +684,7 @@ struct cgs_device + CGS_CALL(set_clockgating_state, dev, block_type, state) + #define cgs_call_acpi_method(dev, acpi_method, acpi_function, pintput, poutput, output_count, input_size, output_size) \ + CGS_CALL(call_acpi_method, dev, acpi_method, acpi_function, pintput, poutput, output_count, input_size, output_size) ++#define cgs_query_system_info(dev, sys_info) \ ++ CGS_CALL(query_system_info, dev, sys_info) + + #endif /* _CGS_COMMON_H */ +-- +2.7.4 + |