From 11b3c20bdd15d17382068be569740de1dccb173d Mon Sep 17 00:00:00 2001 From: Gabriel Krisman Bertazi Date: Fri, 6 Jan 2017 15:57:31 -0200 Subject: drm: Change the return type of the unload hook to void MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The integer returned by the unload hook is ignored by the drm core, so let's make it void. This patch was created using the following Coccinelle semantic script (except for the declaration and comment in drm_drv.h): Compile-tested only. // @ get_name @ struct drm_driver drv; identifier fn; @@ drv.unload = fn; @ replace_type @ identifier get_name.fn; @@ - int + void fn (...) { ... } @ remove_return_param @ identifier get_name.fn; @@ void fn (...) { <... if (...) return - ... ; ...> } @ drop_final_return @ identifier get_name.fn; @@ void fn (...) { ... - return 0; } // Suggested-by: Daniel Vetter Signed-off-by: Gabriel Krisman Bertazi Acked-by: Christian König . Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170106175731.29196-1-krisman@collabora.co.uk --- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 9af87eaf8ee3..8aef25828888 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -50,12 +50,12 @@ static inline bool amdgpu_has_atpx(void) { return false; } * This is the main unload function for KMS (all asics). * Returns 0 on success. */ -int amdgpu_driver_unload_kms(struct drm_device *dev) +void amdgpu_driver_unload_kms(struct drm_device *dev) { struct amdgpu_device *adev = dev->dev_private; if (adev == NULL) - return 0; + return; if (adev->rmmio == NULL) goto done_free; @@ -74,7 +74,6 @@ int amdgpu_driver_unload_kms(struct drm_device *dev) done_free: kfree(adev); dev->dev_private = NULL; - return 0; } /** -- cgit From 44879b6261530b14be339958a0f34805a8fa739a Mon Sep 17 00:00:00 2001 From: Arindam Nath Date: Mon, 12 Dec 2016 15:29:33 +0530 Subject: drm/amd/amdgpu: get maximum and used UVD handles (v4) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change History -------------- v4: Changes suggested by Emil, Christian - return -ENODATA for asics with unlimited sessions v3: changes suggested by Christian - Add a check for UVD IP block using AMDGPU_HW_IP_UVD query type. - Add a check for asic_type to be less than CHIP_POLARIS10 since starting Polaris, we support unlimited UVD instances. - Add kerneldoc style comment for amdgpu_uvd_used_handles(). v2: as suggested by Christian - Add a new query AMDGPU_INFO_NUM_HANDLES - Create a helper function to return the number of currently used UVD handles. - Modify the logic to count the number of used UVD handles since handles can be freed in non-linear fashion. v1: - User might want to query the maximum number of UVD instances supported by firmware. In addition to that, if there are multiple applications using UVD handles at the same time, he might also want to query the currently used number of handles. For this we add two variables max_handles and used_handles inside drm_amdgpu_info_hw_ip. So now an application (or libdrm) can use AMDGPU_INFO IOCTL with AMDGPU_INFO_HW_IP_INFO query type to get these values. Signed-off-by: Arindam Nath Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 21 +++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c | 25 +++++++++++++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h | 1 + include/uapi/drm/amdgpu_drm.h | 9 +++++++++ 4 files changed, 56 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 8aef25828888..43169ab61a78 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -569,6 +569,27 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file return -EINVAL; } } + case AMDGPU_INFO_NUM_HANDLES: { + struct drm_amdgpu_info_num_handles handle; + + switch (info->query_hw_ip.type) { + case AMDGPU_HW_IP_UVD: + /* Starting Polaris, we support unlimited UVD handles */ + if (adev->asic_type < CHIP_POLARIS10) { + handle.uvd_max_handles = adev->uvd.max_handles; + handle.uvd_used_handles = amdgpu_uvd_used_handles(adev); + + return copy_to_user(out, &handle, + min((size_t)size, sizeof(handle))) ? -EFAULT : 0; + } else { + return -ENODATA; + } + + break; + default: + return -EINVAL; + } + } default: DRM_DEBUG_KMS("Invalid request %d\n", info->query); return -EINVAL; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c index 1d564beb0fde..326b7f5a79ff 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c @@ -1178,3 +1178,28 @@ int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout) error: return r; } + +/** + * amdgpu_uvd_used_handles - returns used UVD handles + * + * @adev: amdgpu_device pointer + * + * Returns the number of UVD handles in use + */ +uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev) +{ + unsigned i; + uint32_t used_handles = 0; + + for (i = 0; i < adev->uvd.max_handles; ++i) { + /* + * Handles can be freed in any order, and not + * necessarily linear. So we need to count + * all non-zero handles. + */ + if (atomic_read(&adev->uvd.handles[i])) + used_handles++; + } + + return used_handles; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h index 6249ba1bde2a..c10682baccae 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h @@ -38,5 +38,6 @@ int amdgpu_uvd_ring_parse_cs(struct amdgpu_cs_parser *parser, uint32_t ib_idx); void amdgpu_uvd_ring_begin_use(struct amdgpu_ring *ring); void amdgpu_uvd_ring_end_use(struct amdgpu_ring *ring); int amdgpu_uvd_ring_test_ib(struct amdgpu_ring *ring, long timeout); +uint32_t amdgpu_uvd_used_handles(struct amdgpu_device *adev); #endif diff --git a/include/uapi/drm/amdgpu_drm.h b/include/uapi/drm/amdgpu_drm.h index 396183628f3c..5797283c2d79 100644 --- a/include/uapi/drm/amdgpu_drm.h +++ b/include/uapi/drm/amdgpu_drm.h @@ -528,6 +528,8 @@ struct drm_amdgpu_cs_chunk_data { #define AMDGPU_INFO_VBIOS_SIZE 0x1 /* Subquery id: Query vbios image */ #define AMDGPU_INFO_VBIOS_IMAGE 0x2 +/* Query UVD handles */ +#define AMDGPU_INFO_NUM_HANDLES 0x1C #define AMDGPU_INFO_MMR_SE_INDEX_SHIFT 0 #define AMDGPU_INFO_MMR_SE_INDEX_MASK 0xff @@ -719,6 +721,13 @@ struct drm_amdgpu_info_hw_ip { __u32 _pad; }; +struct drm_amdgpu_info_num_handles { + /** Max handles as supported by firmware for UVD */ + __u32 uvd_max_handles; + /** Handles currently in use for UVD */ + __u32 uvd_used_handles; +}; + #define AMDGPU_VCE_CLOCK_TABLE_ENTRIES 6 struct drm_amdgpu_info_vce_clock_table_entry { -- cgit From 2493664f0594d4140a5025de8e419ca2c16ccee9 Mon Sep 17 00:00:00 2001 From: Monk Liu Date: Mon, 9 Jan 2017 15:54:32 +0800 Subject: drm/amdgpu:invoke CSA functions (v2) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Make sure the CSA is mapped. v2: agd: rebase. Signed-off-by: Monk Liu Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 14 ++++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 12 ++++++++++++ drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 14 ++++++++++++++ 3 files changed, 40 insertions(+) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index 29d6d84d1c28..8d019ca7d9c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -771,6 +771,20 @@ static int amdgpu_bo_vm_update_pte(struct amdgpu_cs_parser *p, if (r) return r; + if (amdgpu_sriov_vf(adev)) { + struct dma_fence *f; + bo_va = vm->csa_bo_va; + BUG_ON(!bo_va); + r = amdgpu_vm_bo_update(adev, bo_va, false); + if (r) + return r; + + f = bo_va->last_pt_update; + r = amdgpu_sync_fence(adev, &p->job->sync, f); + if (r) + return r; + } + if (p->bo_list) { for (i = 0; i < p->bo_list->num_entries; i++) { struct dma_fence *f; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 85b36edbdd61..121b8440cf40 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1395,6 +1395,15 @@ static int amdgpu_init(struct amdgpu_device *adev) return r; } adev->ip_blocks[i].status.hw = true; + + /* right after GMC hw init, we create CSA */ + if (amdgpu_sriov_vf(adev)) { + r = amdgpu_allocate_static_csa(adev); + if (r) { + DRM_ERROR("allocate CSA failed %d\n", r); + return r; + } + } } } @@ -1528,6 +1537,9 @@ static int amdgpu_fini(struct amdgpu_device *adev) adev->ip_blocks[i].status.late_initialized = false; } + if (amdgpu_sriov_vf(adev)) + amdgpu_bo_free_kernel(&adev->virt.csa_obj, &adev->virt.csa_vmid0_addr, NULL); + return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 43169ab61a78..8f852cb152f5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -649,6 +649,12 @@ int amdgpu_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv) goto out_suspend; } + if (amdgpu_sriov_vf(adev)) { + r = amdgpu_map_static_csa(adev, &fpriv->vm); + if (r) + goto out_suspend; + } + mutex_init(&fpriv->bo_list_lock); idr_init(&fpriv->bo_list_handles); @@ -687,6 +693,14 @@ void amdgpu_driver_postclose_kms(struct drm_device *dev, amdgpu_uvd_free_handles(adev, file_priv); amdgpu_vce_free_handles(adev, file_priv); + if (amdgpu_sriov_vf(adev)) { + /* TODO: how to handle reserve failure */ + BUG_ON(amdgpu_bo_reserve(adev->virt.csa_obj, false)); + amdgpu_vm_bo_rmv(adev, fpriv->vm.csa_bo_va); + fpriv->vm.csa_bo_va = NULL; + amdgpu_bo_unreserve(adev->virt.csa_obj); + } + amdgpu_vm_fini(adev, &fpriv->vm); idr_for_each_entry(&fpriv->bo_list_handles, list, handle) -- cgit From 3149d9da12263b696d6123f90e44968ebde2115d Mon Sep 17 00:00:00 2001 From: Xiangliang Yu Date: Thu, 12 Jan 2017 15:14:36 +0800 Subject: drm/amdgpu: request/release full gpu access if device is vf MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit For gpu vf device, first need to request full gpu access before accessing gpu registers, and release full gpu access after the access is done. Signed-off-by: Xiangliang Yu Signed-off-by: Monk Liu Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 10 +++++++++- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 6 ++++++ 2 files changed, 15 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 6eabeaaa3c30..e0fcfea99328 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1345,6 +1345,12 @@ static int amdgpu_early_init(struct amdgpu_device *adev) return -EINVAL; } + if (amdgpu_sriov_vf(adev)) { + r = amdgpu_virt_request_full_gpu(adev, true); + if (r) + return r; + } + for (i = 0; i < adev->num_ip_blocks; i++) { if ((amdgpu_ip_block_mask & (1 << i)) == 0) { DRM_ERROR("disabled ip block: %d\n", i); @@ -1547,8 +1553,10 @@ static int amdgpu_fini(struct amdgpu_device *adev) adev->ip_blocks[i].status.late_initialized = false; } - if (amdgpu_sriov_vf(adev)) + if (amdgpu_sriov_vf(adev)) { amdgpu_bo_free_kernel(&adev->virt.csa_obj, &adev->virt.csa_vmid0_addr, NULL); + amdgpu_virt_release_full_gpu(adev, false); + } return 0; } diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 8f852cb152f5..61d94c745672 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -60,6 +60,9 @@ void amdgpu_driver_unload_kms(struct drm_device *dev) if (adev->rmmio == NULL) goto done_free; + if (amdgpu_sriov_vf(adev)) + amdgpu_virt_request_full_gpu(adev, false); + if (amdgpu_device_is_px(dev)) { pm_runtime_get_sync(dev->dev); pm_runtime_forbid(dev->dev); @@ -138,6 +141,9 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags) pm_runtime_put_autosuspend(dev->dev); } + if (amdgpu_sriov_vf(adev)) + amdgpu_virt_release_full_gpu(adev, true); + out: if (r) { /* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */ -- cgit