linux-kernel - [PATCH] drm/panthor: Remove dead VM flushing code

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Message-ID: <20250711154557.739326-1-adrian.larumbe@collabora.com>
Date: Fri, 11 Jul 2025 16:45:53 +0100
From: Adrián Larumbe <adrian.larumbe@...labora.com>
To: Boris Brezillon <boris.brezillon@...labora.com>,
	Steven Price <steven.price@....com>,
	Liviu Dudau <liviu.dudau@....com>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>
Cc: kernel@...labora.com,
	Adrián Larumbe <adrian.larumbe@...labora.com>,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm/panthor: Remove dead VM flushing code

Commit ec62d37d2c0d("drm/panthor: Fix the fast-reset logic") did away
with the only reference to panthor_vm_flush_all(), so let's get rid
of the orphaned definition.

Signed-off-by: Adrián Larumbe <adrian.larumbe@...labora.com>
---
 drivers/gpu/drm/panthor/panthor_mmu.c | 11 -----------
 drivers/gpu/drm/panthor/panthor_mmu.h |  1 -
 2 files changed, 12 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_mmu.c b/drivers/gpu/drm/panthor/panthor_mmu.c
index b39ea6acc6a9..ed3712f8d6a9 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.c
+++ b/drivers/gpu/drm/panthor/panthor_mmu.c
@@ -885,17 +885,6 @@ static int panthor_vm_flush_range(struct panthor_vm *vm, u64 iova, u64 size)
 	return ret;
 }
 
-/**
- * panthor_vm_flush_all() - Flush L2 caches for the entirety of a VM's AS
- * @vm: VM whose cache to flush
- *
- * Return: 0 on success, a negative error code if flush failed.
- */
-int panthor_vm_flush_all(struct panthor_vm *vm)
-{
-	return panthor_vm_flush_range(vm, vm->base.mm_start, vm->base.mm_range);
-}
-
 static int panthor_vm_unmap_pages(struct panthor_vm *vm, u64 iova, u64 size)
 {
 	struct panthor_device *ptdev = vm->ptdev;
diff --git a/drivers/gpu/drm/panthor/panthor_mmu.h b/drivers/gpu/drm/panthor/panthor_mmu.h
index fc274637114e..0e268fdfdb2f 100644
--- a/drivers/gpu/drm/panthor/panthor_mmu.h
+++ b/drivers/gpu/drm/panthor/panthor_mmu.h
@@ -33,7 +33,6 @@ int panthor_vm_active(struct panthor_vm *vm);
 void panthor_vm_idle(struct panthor_vm *vm);
 u32 panthor_vm_page_size(struct panthor_vm *vm);
 int panthor_vm_as(struct panthor_vm *vm);
-int panthor_vm_flush_all(struct panthor_vm *vm);
 
 struct panthor_heap_pool *
 panthor_vm_get_heap_pool(struct panthor_vm *vm, bool create);
-- 
2.50.0