diff options
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_region_lmem.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.c | 3 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/i915_params.h | 1 |
3 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_region_lmem.c b/drivers/gpu/drm/i915/gt/intel_region_lmem.c index 783d81072c3b..f5111c0a0060 100644 --- a/drivers/gpu/drm/i915/gt/intel_region_lmem.c +++ b/drivers/gpu/drm/i915/gt/intel_region_lmem.c @@ -123,6 +123,10 @@ static struct intel_memory_region *setup_lmem(struct intel_gt *gt) lmem_size = intel_uncore_read64(&i915->uncore, GEN12_GSMBASE); } + if (i915->params.lmem_size > 0) { + lmem_size = min_t(resource_size_t, lmem_size, + mul_u32_u32(i915->params.lmem_size, SZ_1M)); + } io_start = pci_resource_start(pdev, 2); io_size = min(pci_resource_len(pdev, 2), lmem_size); diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c index eea355c2fc28..d898141cf208 100644 --- a/drivers/gpu/drm/i915/i915_params.c +++ b/drivers/gpu/drm/i915/i915_params.c @@ -200,6 +200,9 @@ i915_param_named_unsafe(request_timeout_ms, uint, 0600, "Default request/fence/batch buffer expiration timeout."); #endif +i915_param_named_unsafe(lmem_size, uint, 0400, + "Set the lmem size(in MiB) for each region. (default: 0, all memory)"); + static __always_inline void _print_param(struct drm_printer *p, const char *name, const char *type, diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h index c779a6f85c7e..b5e7ea45d191 100644 --- a/drivers/gpu/drm/i915/i915_params.h +++ b/drivers/gpu/drm/i915/i915_params.h @@ -73,6 +73,7 @@ struct drm_printer; param(int, enable_dpcd_backlight, -1, 0600) \ param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \ param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \ + param(unsigned int, lmem_size, 0, 0400) \ /* leave bools at the end to not create holes */ \ param(bool, enable_hangcheck, true, 0600) \ param(bool, load_detect_test, false, 0600) \ |