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drm/i915: Allow configuring default request expiry via modparam

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Module parameter is added (request_timeout_ms) to allow configuring the
default request/fence expiry.

Default value is inherited from CONFIG_DRM_I915_REQUEST_TIMEOUT.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210324121335.2307063-8-tvrtko.ursulin@linux.intel.com
This commit is contained in:
Tvrtko Ursulin 2021-03-24 12:13:35 +00:00 committed by Daniel Vetter
parent e8dbb566b3
commit 54d4e9f5c4
3 changed files with 9 additions and 2 deletions
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5
drivers/gpu/drm/i915/gem/i915_gem_context.c
View file

@ -815,11 +815,12 @@ static void __set_default_fence_expiry(struct i915_gem_context *ctx)
struct drm_i915_private *i915 = ctx->i915;
int ret;
if (!IS_ACTIVE(CONFIG_DRM_I915_REQUEST_TIMEOUT))
if (!IS_ACTIVE(CONFIG_DRM_I915_REQUEST_TIMEOUT) ||
!i915->params.request_timeout_ms)
return;
/* Default expiry for user fences. */
ret = __set_watchdog(ctx, CONFIG_DRM_I915_REQUEST_TIMEOUT * 1000);
ret = __set_watchdog(ctx, i915->params.request_timeout_ms * 1000);
if (ret)
drm_notice(&i915->drm,
"Failed to configure default fence expiry! (%d)",

5
drivers/gpu/drm/i915/i915_params.c
View file

@ -197,6 +197,11 @@ i915_param_named_unsafe(fake_lmem_start, ulong, 0400,
"Fake LMEM start offset (default: 0)");
#endif
#if CONFIG_DRM_I915_REQUEST_TIMEOUT
i915_param_named_unsafe(request_timeout_ms, uint, 0600,
"Default request/fence/batch buffer expiration timeout.");
#endif
static __always_inline void _print_param(struct drm_printer *p,
const char *name,
const char *type,

1
drivers/gpu/drm/i915/i915_params.h
View file

@ -72,6 +72,7 @@ struct drm_printer;
param(int, enable_dpcd_backlight, -1, 0600) \
param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
param(unsigned long, fake_lmem_start, 0, 0400) \
param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, 0600) \
/* leave bools at the end to not create holes */ \
param(bool, enable_hangcheck, true, 0600) \
param(bool, load_detect_test, false, 0600) \