From: Christian König Date: Thu, 8 Jun 2017 09:15:16 +0000 (+0200) Subject: drm/amdgpu: move hw generation check into amdgpu_doorbell_init v2 X-Git-Tag: android-x86-8.1-r1~2144^2~60^2~182 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=705e519e0ef1d1824c28ced3b1857a8608853dfb;p=android-x86%2Fkernel.git drm/amdgpu: move hw generation check into amdgpu_doorbell_init v2 This way we can safely call it on SI as well. v2: fix type in commit message Signed-off-by: Christian König Reviewed-by: Andy Shevchenko Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 1c5c44acaad2..77a32b79e8f2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -403,6 +403,15 @@ void amdgpu_pci_config_reset(struct amdgpu_device *adev) */ static int amdgpu_doorbell_init(struct amdgpu_device *adev) { + /* No doorbell on SI hardware generation */ + if (adev->asic_type < CHIP_BONAIRE) { + adev->doorbell.base = 0; + adev->doorbell.size = 0; + adev->doorbell.num_doorbells = 0; + adev->doorbell.ptr = NULL; + return 0; + } + /* doorbell bar mapping */ adev->doorbell.base = pci_resource_start(adev->pdev, 2); adev->doorbell.size = pci_resource_len(adev->pdev, 2); @@ -2075,9 +2084,8 @@ int amdgpu_device_init(struct amdgpu_device *adev, DRM_INFO("register mmio base: 0x%08X\n", (uint32_t)adev->rmmio_base); DRM_INFO("register mmio size: %u\n", (unsigned)adev->rmmio_size); - if (adev->asic_type >= CHIP_BONAIRE) - /* doorbell bar mapping */ - amdgpu_doorbell_init(adev); + /* doorbell bar mapping */ + amdgpu_doorbell_init(adev); /* io port mapping */ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) { @@ -2304,8 +2312,7 @@ void amdgpu_device_fini(struct amdgpu_device *adev) adev->rio_mem = NULL; iounmap(adev->rmmio); adev->rmmio = NULL; - if (adev->asic_type >= CHIP_BONAIRE) - amdgpu_doorbell_fini(adev); + amdgpu_doorbell_fini(adev); amdgpu_debugfs_regs_cleanup(adev); }