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Diffstat (limited to 'sys-kernel/boest-v5.0.15/raspberrypi/0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch')
--rw-r--r--r--'>sys-kernel/boest-v5.0.15/raspberrypi/0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch107107
1 files changed, 107 insertions, 0 deletions
diff --git a/sys-kernel/boest-v5.0.15/raspberrypi/0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch b/sys-kernel/boest-v5.0.15/raspberrypi/0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch
new file mode 100644
index 00000000..244f8708
--- /dev/null
+++ b/sys-kernel/boest-v5.0.15/raspberrypi/0001-arm-partially-revert-702b94bff3c50542a6e4ab9a4f4cef0.patch
@@ -0,0 +1,107 @@
+From ebbb1b6abc437b21b512e809b9c51164e082cf0c Mon Sep 17 00:00:00 2001
+From: Dan Pasanen <dan.pasanen@gmail.com>
+Date: Thu, 21 Sep 2017 09:55:42 -0500
+Subject: [PATCH 001/194] arm: partially revert
+ 702b94bff3c50542a6e4ab9a4f4cef093262fe65
+
+* Re-expose some dmi APIs for use in VCSM
+---
+ arch/arm/include/asm/cacheflush.h | 21 +++++++++++++++++++++
+ arch/arm/include/asm/glue-cache.h | 2 ++
+ arch/arm/mm/proc-macros.S | 2 ++
+ arch/arm/mm/proc-syms.c | 3 +++
+ 4 files changed, 28 insertions(+)
+
+diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
+index ec1a5fd0d294..dc0a32fdde43 100644
+--- a/arch/arm/include/asm/cacheflush.h
++++ b/arch/arm/include/asm/cacheflush.h
+@@ -94,6 +94,21 @@
+ * DMA Cache Coherency
+ * ===================
+ *
++ * dma_inv_range(start, end)
++ *
++ * Invalidate (discard) the specified virtual address range.
++ * May not write back any entries. If 'start' or 'end'
++ * are not cache line aligned, those lines must be written
++ * back.
++ * - start - virtual start address
++ * - end - virtual end address
++ *
++ * dma_clean_range(start, end)
++ *
++ * Clean (write back) the specified virtual address range.
++ * - start - virtual start address
++ * - end - virtual end address
++ *
+ * dma_flush_range(start, end)
+ *
+ * Clean and invalidate the specified virtual address range.
+@@ -115,6 +130,8 @@ struct cpu_cache_fns {
+ void (*dma_map_area)(const void *, size_t, int);
+ void (*dma_unmap_area)(const void *, size_t, int);
+
++ void (*dma_inv_range)(const void *, const void *);
++ void (*dma_clean_range)(const void *, const void *);
+ void (*dma_flush_range)(const void *, const void *);
+ } __no_randomize_layout;
+
+@@ -140,6 +157,8 @@ extern struct cpu_cache_fns cpu_cache;
+ * is visible to DMA, or data written by DMA to system memory is
+ * visible to the CPU.
+ */
++#define dmac_inv_range cpu_cache.dma_inv_range
++#define dmac_clean_range cpu_cache.dma_clean_range
+ #define dmac_flush_range cpu_cache.dma_flush_range
+
+ #else
+@@ -159,6 +178,8 @@ extern void __cpuc_flush_dcache_area(void *, size_t);
+ * is visible to DMA, or data written by DMA to system memory is
+ * visible to the CPU.
+ */
++extern void dmac_inv_range(const void *, const void *);
++extern void dmac_clean_range(const void *, const void *);
+ extern void dmac_flush_range(const void *, const void *);
+
+ #endif
+diff --git a/arch/arm/include/asm/glue-cache.h b/arch/arm/include/asm/glue-cache.h
+index 8d1f498e5dd8..0050d2246da8 100644
+--- a/arch/arm/include/asm/glue-cache.h
++++ b/arch/arm/include/asm/glue-cache.h
+@@ -158,6 +158,8 @@ static inline void nop_dma_unmap_area(const void *s, size_t l, int f) { }
+ #define __cpuc_coherent_user_range __glue(_CACHE,_coherent_user_range)
+ #define __cpuc_flush_dcache_area __glue(_CACHE,_flush_kern_dcache_area)
+
++#define dmac_inv_range __glue(_CACHE,_dma_inv_range)
++#define dmac_clean_range __glue(_CACHE,_dma_clean_range)
+ #define dmac_flush_range __glue(_CACHE,_dma_flush_range)
+ #endif
+
+diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S
+index 5461d589a1e2..8d1d479a86fa 100644
+--- a/arch/arm/mm/proc-macros.S
++++ b/arch/arm/mm/proc-macros.S
+@@ -335,6 +335,8 @@ ENTRY(\name\()_cache_fns)
+ .long \name\()_flush_kern_dcache_area
+ .long \name\()_dma_map_area
+ .long \name\()_dma_unmap_area
++ .long \name\()_dma_inv_range
++ .long \name\()_dma_clean_range
+ .long \name\()_dma_flush_range
+ .size \name\()_cache_fns, . - \name\()_cache_fns
+ .endm
+diff --git a/arch/arm/mm/proc-syms.c b/arch/arm/mm/proc-syms.c
+index 054b491ff764..70e8b7d34434 100644
+--- a/arch/arm/mm/proc-syms.c
++++ b/arch/arm/mm/proc-syms.c
+@@ -30,6 +30,9 @@ EXPORT_SYMBOL(__cpuc_flush_user_all);
+ EXPORT_SYMBOL(__cpuc_flush_user_range);
+ EXPORT_SYMBOL(__cpuc_coherent_kern_range);
+ EXPORT_SYMBOL(__cpuc_flush_dcache_area);
++EXPORT_SYMBOL(dmac_inv_range);
++EXPORT_SYMBOL(dmac_clean_range);
++EXPORT_SYMBOL(dmac_flush_range);
+ #else
+ EXPORT_SYMBOL(cpu_cache);
+ #endif