From 912dfc846aad77e4a61ac39ca92bd7149062e590 Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Mon, 29 Apr 2019 16:51:17 +0800 Subject: [PATCH] drm/amdgpu: enable separate timeout setting for every ring type V4 Every ring type can have its own timeout setting. - V2: update lockup_timeout parameter format and cosmetic fixes - V3: invalidate 0 and negative values - V4: update lockup_timeout parameter format Signed-off-by: Evan Quan Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu.h | 7 +- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 17 +++-- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 81 ++++++++++++++++++++-- drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 35 ++++++++-- drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 2 +- 5 files changed, 122 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h index 23c3375623d7..30165487dabd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h @@ -118,7 +118,6 @@ extern int amdgpu_disp_priority; extern int amdgpu_hw_i2c; extern int amdgpu_pcie_gen2; extern int amdgpu_msi; -extern int amdgpu_lockup_timeout; extern int amdgpu_dpm; extern int amdgpu_fw_load_type; extern int amdgpu_aspm; @@ -415,6 +414,7 @@ struct amdgpu_fpriv { }; int amdgpu_file_to_fpriv(struct file *filp, struct amdgpu_fpriv **fpriv); +int amdgpu_device_get_job_timeout_settings(struct amdgpu_device *adev); int amdgpu_ib_get(struct amdgpu_device *adev, struct amdgpu_vm *vm, unsigned size, struct amdgpu_ib *ib); @@ -943,6 +943,11 @@ struct amdgpu_device { struct work_struct xgmi_reset_work; bool in_baco_reset; + + long gfx_timeout; + long sdma_timeout; + long video_timeout; + long compute_timeout; }; static inline struct amdgpu_device *amdgpu_ttm_adev(struct ttm_bo_device *bdev) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index cc8ad3831982..0237513086e8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -910,8 +910,10 @@ def_value: * Validates certain module parameters and updates * the associated values used by the driver (all asics). */ -static void amdgpu_device_check_arguments(struct amdgpu_device *adev) +static int amdgpu_device_check_arguments(struct amdgpu_device *adev) { + int ret = 0; + if (amdgpu_sched_jobs < 4) { dev_warn(adev->dev, "sched jobs (%d) must be at least 4\n", amdgpu_sched_jobs); @@ -956,12 +958,15 @@ static void amdgpu_device_check_arguments(struct amdgpu_device *adev) amdgpu_vram_page_split = 1024; } - if (amdgpu_lockup_timeout == 0) { - dev_warn(adev->dev, "lockup_timeout msut be > 0, adjusting to 10000\n"); - amdgpu_lockup_timeout = 10000; + ret = amdgpu_device_get_job_timeout_settings(adev); + if (ret) { + dev_err(adev->dev, "invalid lockup_timeout parameter syntax\n"); + return ret; } adev->firmware.load_type = amdgpu_ucode_get_load_type(adev, amdgpu_fw_load_type); + + return ret; } /** @@ -2473,7 +2478,9 @@ int amdgpu_device_init(struct amdgpu_device *adev, mutex_init(&adev->lock_reset); mutex_init(&adev->virt.dpm_mutex); - amdgpu_device_check_arguments(adev); + r = amdgpu_device_check_arguments(adev); + if (r) + return r; spin_lock_init(&adev->mmio_idx_lock); spin_lock_init(&adev->smc_idx_lock); diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 1e2cc9d68a05..5924d89e0aee 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -81,6 +81,8 @@ #define KMS_DRIVER_MINOR 32 #define KMS_DRIVER_PATCHLEVEL 0 +#define AMDGPU_MAX_TIMEOUT_PARAM_LENTH 256 + int amdgpu_vram_limit = 0; int amdgpu_vis_vram_limit = 0; int amdgpu_gart_size = -1; /* auto */ @@ -93,7 +95,7 @@ int amdgpu_disp_priority = 0; int amdgpu_hw_i2c = 0; int amdgpu_pcie_gen2 = -1; int amdgpu_msi = -1; -int amdgpu_lockup_timeout = 10000; +char amdgpu_lockup_timeout[AMDGPU_MAX_TIMEOUT_PARAM_LENTH]; int amdgpu_dpm = -1; int amdgpu_fw_load_type = -1; int amdgpu_aspm = -1; @@ -227,12 +229,21 @@ MODULE_PARM_DESC(msi, "MSI support (1 = enable, 0 = disable, -1 = auto)"); module_param_named(msi, amdgpu_msi, int, 0444); /** - * DOC: lockup_timeout (int) - * Set GPU scheduler timeout value in ms. Value 0 is invalidated, will be adjusted to 10000. - * Negative values mean 'infinite timeout' (MAX_JIFFY_OFFSET). The default is 10000. - */ -MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms > 0 (default 10000)"); -module_param_named(lockup_timeout, amdgpu_lockup_timeout, int, 0444); + * DOC: lockup_timeout (string) + * Set GPU scheduler timeout value in ms. + * + * The format can be [Non-Compute] or [GFX,Compute,SDMA,Video]. That is there can be one or + * multiple values specified. 0 and negative values are invalidated. They will be adjusted + * to default timeout. + * - With one value specified, the setting will apply to all non-compute jobs. + * - With multiple values specified, the first one will be for GFX. The second one is for Compute. + * And the third and fourth ones are for SDMA and Video. + * By default(with no lockup_timeout settings), the timeout for all non-compute(GFX, SDMA and Video) + * jobs is 10000. And there is no timeout enforced on compute jobs. + */ +MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms (default: 10000 for non-compute jobs and no timeout for compute jobs), " + "format is [Non-Compute] or [GFX,Compute,SDMA,Video]"); +module_param_string(lockup_timeout, amdgpu_lockup_timeout, sizeof(amdgpu_lockup_timeout), 0444); /** * DOC: dpm (int) @@ -1216,6 +1227,62 @@ int amdgpu_file_to_fpriv(struct file *filp, struct amdgpu_fpriv **fpriv) return 0; } +int amdgpu_device_get_job_timeout_settings(struct amdgpu_device *adev) +{ + char *input = amdgpu_lockup_timeout; + char *timeout_setting = NULL; + int index = 0; + long timeout; + int ret = 0; + + /* + * By default timeout for non compute jobs is 10000. + * And there is no timeout enforced on compute jobs. + */ + adev->gfx_timeout = adev->sdma_timeout = adev->video_timeout = 10000; + adev->compute_timeout = MAX_SCHEDULE_TIMEOUT; + + if (strnlen(input, AMDGPU_MAX_TIMEOUT_PARAM_LENTH)) { + while ((timeout_setting = strsep(&input, ",")) && + strnlen(timeout_setting, AMDGPU_MAX_TIMEOUT_PARAM_LENTH)) { + ret = kstrtol(timeout_setting, 0, &timeout); + if (ret) + return ret; + + /* Invalidate 0 and negative values */ + if (timeout <= 0) { + index++; + continue; + } + + switch (index++) { + case 0: + adev->gfx_timeout = timeout; + break; + case 1: + adev->compute_timeout = timeout; + break; + case 2: + adev->sdma_timeout = timeout; + break; + case 3: + adev->video_timeout = timeout; + break; + default: + break; + } + } + /* + * There is only one value specified and + * it should apply to all non-compute jobs. + */ + if (index == 1) + adev->sdma_timeout = adev->video_timeout = adev->gfx_timeout; + } + + return ret; +} + static bool amdgpu_get_crtc_scanout_position(struct drm_device *dev, unsigned int pipe, bool in_vblank_irq, int *vpos, int *hpos, diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c index 4dee2326b29c..3a483f7e89c7 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c @@ -427,9 +427,13 @@ int amdgpu_fence_driver_start_ring(struct amdgpu_ring *ring, int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, unsigned num_hw_submission) { + struct amdgpu_device *adev = ring->adev; long timeout; int r; + if (!adev) + return -EINVAL; + /* Check that num_hw_submission is a power of two */ if ((num_hw_submission & (num_hw_submission - 1)) != 0) return -EINVAL; @@ -451,12 +455,31 @@ int amdgpu_fence_driver_init_ring(struct amdgpu_ring *ring, /* No need to setup the GPU scheduler for KIQ ring */ if (ring->funcs->type != AMDGPU_RING_TYPE_KIQ) { - /* for non-sriov case, no timeout enforce on compute ring */ - if ((ring->funcs->type == AMDGPU_RING_TYPE_COMPUTE) - && !amdgpu_sriov_vf(ring->adev)) - timeout = MAX_SCHEDULE_TIMEOUT; - else - timeout = msecs_to_jiffies(amdgpu_lockup_timeout); + switch (ring->funcs->type) { + case AMDGPU_RING_TYPE_GFX: + timeout = adev->gfx_timeout; + break; + case AMDGPU_RING_TYPE_COMPUTE: + /* + * For non-sriov case, no timeout enforce + * on compute ring by default. Unless user + * specifies a timeout for compute ring. + * + * For sriov case, always use the timeout + * as gfx ring + */ + if (!amdgpu_sriov_vf(ring->adev)) + timeout = adev->compute_timeout; + else + timeout = adev->gfx_timeout; + break; + case AMDGPU_RING_TYPE_SDMA: + timeout = adev->sdma_timeout; + break; + default: + timeout = adev->video_timeout; + break; + } r = drm_sched_init(&ring->sched, &amdgpu_sched_ops, num_hw_submission, amdgpu_job_hang_limit, diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index 2471e7cf75ea..64a7b1fb1d1b 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -343,7 +343,7 @@ flr_done: /* Trigger recovery for world switch failure if no TDR */ if (amdgpu_device_should_recover_gpu(adev) - && amdgpu_lockup_timeout == MAX_SCHEDULE_TIMEOUT) + && adev->sdma_timeout == MAX_SCHEDULE_TIMEOUT) amdgpu_device_gpu_recover(adev, NULL); } -- 2.30.2