diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0435-drm-amdgpu-added-AMD-GPU-instance-counting-V2.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0435-drm-amdgpu-added-AMD-GPU-instance-counting-V2.patch | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0435-drm-amdgpu-added-AMD-GPU-instance-counting-V2.patch b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0435-drm-amdgpu-added-AMD-GPU-instance-counting-V2.patch new file mode 100644 index 00000000..5a5608d2 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux-4.19/linux-yocto-4.19.8/0435-drm-amdgpu-added-AMD-GPU-instance-counting-V2.patch @@ -0,0 +1,158 @@ +From 7412bc2edbe661b5716e84f0d7d8e783520c4f76 Mon Sep 17 00:00:00 2001 +From: Evan Quan <evan.quan@amd.com> +Date: Thu, 27 Sep 2018 13:26:58 +0800 +Subject: [PATCH 0435/2940] drm/amdgpu: added AMD GPU instance counting V2 + +Count all GPU instances from AMD(including iGPUs and +dGPUs) in the system. + +V2: drop unnecessary initialization for other gpu_info + members except mutex + +Change-Id: If62a0873c64857a3fcdf9785557e24cb3456c12e +Signed-off-by: Evan Quan <evan.quan@amd.com> +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +Signed-off-by: Kalyan Alle <kalyan.alle@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu.h | 18 +++++++++ + drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++ + drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 52 +++++++++++++++++++++++++ + 3 files changed, 73 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h +index 8dec9422de15..cb7e47d95002 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h +@@ -82,6 +82,23 @@ + #include "amdgpu_bo_list.h" + #include "amdgpu_gem.h" + ++#define MAX_GPU_INSTANCE 16 ++ ++struct amdgpu_gpu_instance ++{ ++ struct amdgpu_device *adev; ++ int mgpu_fan_enabled; ++}; ++ ++struct amdgpu_mgpu_info ++{ ++ struct amdgpu_gpu_instance gpu_ins[MAX_GPU_INSTANCE]; ++ struct mutex mutex; ++ uint32_t num_gpu; ++ uint32_t num_dgpu; ++ uint32_t num_apu; ++}; ++ + /* + * Modules parameters. + */ +@@ -138,6 +155,7 @@ extern int amdgpu_compute_multipipe; + extern int amdgpu_gpu_recovery; + extern int amdgpu_emu_mode; + extern uint amdgpu_smu_memory_pool_size; ++extern struct amdgpu_mgpu_info mgpu_info; + + #ifdef CONFIG_DRM_AMDGPU_SI + extern int amdgpu_si_support; +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +index 0ee6cc47218d..7501cf59d52c 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +@@ -132,6 +132,9 @@ int amdgpu_compute_multipipe = -1; + int amdgpu_gpu_recovery = -1; /* auto */ + int amdgpu_emu_mode = 0; + uint amdgpu_smu_memory_pool_size = 0; ++struct amdgpu_mgpu_info mgpu_info = { ++ .mutex = __MUTEX_INITIALIZER(mgpu_info.mutex), ++}; + + /** + * DOC: vramlimit (int) +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +index a351123ab0f5..ce1bf6cd49ae 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +@@ -40,6 +40,30 @@ + #include "amdgpu_gem.h" + #include "amdgpu_display.h" + ++static void amdgpu_unregister_gpu_instance(struct amdgpu_device *adev) ++{ ++ struct amdgpu_gpu_instance *gpu_instance; ++ int i; ++ ++ mutex_lock(&mgpu_info.mutex); ++ ++ for (i = 0; i < mgpu_info.num_gpu; i++) { ++ gpu_instance = &(mgpu_info.gpu_ins[i]); ++ if (gpu_instance->adev == adev) { ++ mgpu_info.gpu_ins[i] = ++ mgpu_info.gpu_ins[mgpu_info.num_gpu - 1]; ++ mgpu_info.num_gpu--; ++ if (adev->flags & AMD_IS_APU) ++ mgpu_info.num_apu--; ++ else ++ mgpu_info.num_dgpu--; ++ break; ++ } ++ } ++ ++ mutex_unlock(&mgpu_info.mutex); ++} ++ + /** + * amdgpu_driver_unload_kms - Main unload function for KMS. + * +@@ -55,6 +79,8 @@ void amdgpu_driver_unload_kms(struct drm_device *dev) + if (adev == NULL) + return; + ++ amdgpu_unregister_gpu_instance(adev); ++ + if (adev->rmmio == NULL) + goto done_free; + +@@ -75,6 +101,31 @@ void amdgpu_driver_unload_kms(struct drm_device *dev) + dev->dev_private = NULL; + } + ++static void amdgpu_register_gpu_instance(struct amdgpu_device *adev) ++{ ++ struct amdgpu_gpu_instance *gpu_instance; ++ ++ mutex_lock(&mgpu_info.mutex); ++ ++ if (mgpu_info.num_gpu >= MAX_GPU_INSTANCE) { ++ DRM_ERROR("Cannot register more gpu instance\n"); ++ mutex_unlock(&mgpu_info.mutex); ++ return; ++ } ++ ++ gpu_instance = &(mgpu_info.gpu_ins[mgpu_info.num_gpu]); ++ gpu_instance->adev = adev; ++ gpu_instance->mgpu_fan_enabled = 0; ++ ++ mgpu_info.num_gpu++; ++ if (adev->flags & AMD_IS_APU) ++ mgpu_info.num_apu++; ++ else ++ mgpu_info.num_dgpu++; ++ ++ mutex_unlock(&mgpu_info.mutex); ++} ++ + /** + * amdgpu_driver_load_kms - Main load function for KMS. + * +@@ -166,6 +217,7 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags) + pm_runtime_put_autosuspend(dev->dev); + } + ++ amdgpu_register_gpu_instance(adev); + out: + if (r) { + /* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */ +-- +2.17.1 + |