kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 42 deletions

diff --git a/target/linux/layerscape/patches-5.4/811-kvm-0001-arm64-KVM-support-flushing-device-memory.patch b/target/linux/layerscape/patches-5.4/811-kvm-0001-arm64-KVM-support-flushing-device-memory.patch
deleted file mode 100644
index 7c9bc079fc..0000000000
--- a/target/linux/layerscape/patches-5.4/811-kvm-0001-arm64-KVM-support-flushing-device-memory.patch
+++ /dev/null
@@ -1,42 +0,0 @@
-From aa9e99f77f92814a0d83af8e6ed3148458d0f611 Mon Sep 17 00:00:00 2001
-From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
-Date: Tue, 26 Jul 2016 15:43:43 +0300
-Subject: [PATCH] arm64: KVM: support flushing device memory
-
-In the current implementation, trying to flush
-memory not covered by the linear map (e.g. device
-memory) causes a crash. Add support for flushing
-"non-normal" memory by explicitly ioremap()-ing
-it when such a case appears and do the cache flush
-through this temporary mapping.
-This allows dropping the special checks for qman
-cacheable region when doing cache flushes.
-
-Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
-[fixed formatting issue]
-Signed-off-by: Diana Craciun <diana.craciun@nxp.com>
----
- arch/arm64/include/asm/kvm_mmu.h | 12 ++++++++++--
- 1 file changed, 10 insertions(+), 2 deletions(-)
-
---- a/arch/arm64/include/asm/kvm_mmu.h
-+++ b/arch/arm64/include/asm/kvm_mmu.h
-@@ -341,8 +341,16 @@ static inline void __invalidate_icache_g
- static inline void __kvm_flush_dcache_pte(pte_t pte)
- {
- 	if (!cpus_have_const_cap(ARM64_HAS_STAGE2_FWB)) {
--		struct page *page = pte_page(pte);
--		kvm_flush_dcache_to_poc(page_address(page), PAGE_SIZE);
-+		if (pfn_valid(pte_pfn(pte))) {
-+			struct page *page = pte_page(pte);
-+
-+			kvm_flush_dcache_to_poc(page_address(page), PAGE_SIZE);
-+		} else {
-+			void __iomem *va = ioremap_cache_ns(pte_pfn(pte) << PAGE_SHIFT, PAGE_SIZE);
-+
-+			kvm_flush_dcache_to_poc(va, PAGE_SIZE);
-+			iounmap(va);
-+		}
- 	}
- }
-