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drm/xe: Retry BO allocation

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[ Upstream commit 1d724a2f1b2c3f0cba4975784a808482e0631adf ]

TTM doesn't support fair eviction via WW locking, this mitigated in by
using retry loops in exec and preempt rebind worker. Extend this retry
loop to BO allocation. Once TTM supports fair eviction this patch can be
reverted.

v4:
 - Keep line break (Stuart)

Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250306012657.3505757-2-matthew.brost@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Matthew Brost
2025-03-05 17:26:26 -08:00
committed by Greg Kroah-Hartman
parent 623669ae7a
commit 4943c0bae1
1 changed files with 7 additions and 0 deletions
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7
drivers/gpu/drm/xe/xe_bo.c
View File

@@ -1975,6 +1975,7 @@ int xe_gem_create_ioctl(struct drm_device *dev, void *data,
struct xe_file *xef = to_xe_file(file);
struct drm_xe_gem_create *args = data;
struct xe_vm *vm = NULL;
ktime_t end = 0;
struct xe_bo *bo;
unsigned int bo_flags;
u32 handle;
@@ -2047,6 +2048,10 @@ int xe_gem_create_ioctl(struct drm_device *dev, void *data,
vm = xe_vm_lookup(xef, args->vm_id);
if (XE_IOCTL_DBG(xe, !vm))
return -ENOENT;
}
retry:
if (vm) {
err = xe_vm_lock(vm, true);
if (err)
goto out_vm;
@@ -2060,6 +2065,8 @@ int xe_gem_create_ioctl(struct drm_device *dev, void *data,
if (IS_ERR(bo)) {
err = PTR_ERR(bo);
if (xe_vm_validate_should_retry(NULL, err, &end))
goto retry;
goto out_vm;
}