For old design, lockup_timeout affects non-compute IPs only(e.g. amdgpu.lockup_timeout=1000). Compute jobs always use MAX_SCHEDULE_TIMEOUT.
For the new design, I would like it be backward compatible. With [Non-Compute]:[Compute] format, "amdgpu.lockup_timeout=1000" setting has the same effect as old design.
> * The format can be [Global] or [GFX,Compute,SDMA,Video].
I think using this format will break backward compatibility. Since "amdgpu.lockup_timeout=1000" setting will affect all IPs(both non-compute and compute).
Regards,
Evan
> -----Original Message-----
> From: Alex Deucher <alexdeucher@xxxxxxxxx>
> Sent: 2019年4月29日 22:27
> To: Quan, Evan <Evan.Quan@xxxxxxx>
> Cc: amd-gfx list <amd-gfx@xxxxxxxxxxxxxxxxxxxxx>; Deucher, Alexander
> <Alexander.Deucher@xxxxxxx>; Lou, Wentao <Wentao.Lou@xxxxxxx>;
> Daenzer, Michel <Michel.Daenzer@xxxxxxx>; Koenig, Christian
> <Christian.Koenig@xxxxxxx>
> Subject: Re: [PATCH] drm/amdgpu: enable separate timeout setting for
> every ring type V3
>
> [CAUTION: External Email]
>
> On Mon, Apr 29, 2019 at 9:51 AM Evan Quan <evan.quan@xxxxxxx> wrote:
> >
> > Every ring type can have its own timeout setting.
> >
> > - V2: update lockup_timeout parameter format and cosmetic fixes
> > - V3: invalidate 0 and negative values
> >
> > Change-Id: I992f224f36bb33acd560162bffd2c3e987840a7e
> > Signed-off-by: Evan Quan <evan.quan@xxxxxxx>
> > ---
> > 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 | 90
> ++++++++++++++++++++--
> > drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 35 +++++++--
> > drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 2 +-
> > 5 files changed, 132 insertions(+), 19 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
> > index f6965b9403eb..c9b44b8c1969 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; @@ -428,6 +427,7 @@
> > 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); @@ -1001,6
> > +1001,11 @@ 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 80bf604019b1..b11af38a0238 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
> > @@ -912,8 +912,10 @@ static void
> amdgpu_device_check_smu_prv_buffer_size(struct amdgpu_device *adev)
> > * 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); @@ -958,13 +960,16 @@
> > 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);
> > amdgpu_direct_gma_size = min(amdgpu_direct_gma_size, 96);
> > +
> > + return ret;
> > }
> >
> > /**
> > @@ -2468,7 +2473,9 @@ 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 71df27cd03de..c936e0735a0a 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
> > @@ -83,6 +83,8 @@
> >
> > #define AMDGPU_VERSION "19.10.9.418"
> >
> > +#define AMDGPU_MAX_TIMEOUT_PARAM_LENTH 256
> > +
> > int amdgpu_vram_limit = 0;
> > int amdgpu_vis_vram_limit = 0;
> > int amdgpu_gart_size = -1; /* auto */ @@ -95,7 +97,7 @@ 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;
> > @@ -232,12 +234,25 @@ 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.
> > + * DOC: lockup_timeout (string)
> > + * Set GPU scheduler timeout value in ms.
> > + *
> > + * The format can be [Non-Compute]:[Compute] or
> [GFX,SDMA,[Video]]:[Compute].
>
> I think this is more complicated than it neeeds to be. How about:
> * The format can be [Global] or [GFX,Compute,SDMA,Video].
> Either you just adjust the global value for backwards compat, or your specify
> the timeout for all of the engine types.
>
> Alex
>
> > + * - There can be one or multiple values specified before ":". Or there is
> even no value before ":".
> > + * - With no value specified before ":", the default timeout for all non-
> compute(GFX, SDMA and Video)
> > + * jobs will be 10000.
> > + * - 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 SDMA.
> > + * And the third one is for Video.
> > + * - There can be one or no value specified after ":".
> > + * - With no value specified after ":", there will be no timeout enforced
> on compute jobs.
> > + * - Otherwise, the timeout for compute jobs will be set as specified.
> > + *
> > + * 0 and negative values are invalidated. They will be adjusted to default
> timeout.
> > */
> > -MODULE_PARM_DESC(lockup_timeout, "GPU lockup timeout in ms > 0
> > (default 10000)"); -module_param_named(lockup_timeout,
> > amdgpu_lockup_timeout, int, 0444);
> > +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]:[Compute] or
> > +[GFX,SDMA,Video]:[Compute]"); module_param_string(lockup_timeout,
> > +amdgpu_lockup_timeout, sizeof(amdgpu_lockup_timeout), 0444);
> >
> > /**
> > * DOC: dpm (int)
> > @@ -1307,6 +1322,69 @@ 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 *non_compute_setting = NULL;
> > + 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)) {
> > + non_compute_setting = strsep(&input, ":");
> > + if (input) {
> > + /* Get compute jobs timeout setting */
> > + ret = kstrtol(input, 0, &timeout);
> > + if (ret)
> > + return ret;
> > + if (timeout > 0)
> > + adev->compute_timeout = timeout;
> > + }
> > +
> > + while ((timeout_setting = strsep(&non_compute_setting, ",")) &&
> > + strnlen(timeout_setting,
> AMDGPU_MAX_TIMEOUT_PARAM_LENTH)) {
> > + ret = kstrtol(timeout_setting, 0, &timeout);
> > + if (ret)
> > + return ret;
> > +
> > + if (timeout <= 0) {
> > + index++;
> > + continue;
> > + }
> > +
> > + switch (index++) {
> > + case 0:
> > + adev->gfx_timeout = timeout;
> > + break;
> > + case 1:
> > + adev->sdma_timeout = timeout;
> > + break;
> > + case 2:
> > + adev->video_timeout = timeout;
> > + break;
> > + default:
> > + break;
> > + }
> > + }
> > + /*
> > + * There is only one value specified before ":" 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 d19ad34bef75..16b7e3a22e89 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
> > @@ -436,9 +436,13 @@ 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;
> > @@ -465,12 +469,31 @@ 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 8dbad496b29f..089952a1e6b0 100644
> > --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
> > +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
> > @@ -343,7 +343,7 @@ static void xgpu_ai_mailbox_flr_work(struct
> > work_struct *work)
> >
> > /* 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); }
> >
> > --
> > 2.21.0
> >
> > _______________________________________________
> > amd-gfx mailing list
> > amd-gfx@xxxxxxxxxxxxxxxxxxxxx
> > https://lists.freedesktop.org/mailman/listinfo/amd-gfx
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