The patch titled
x86: uv: introduce uv_gpa_is_mmr
has been added to the -mm tree. Its filename is
x86-uv-introduce-uv_gpa_is_mmr.patch
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------------------------------------------------------
Subject: x86: uv: introduce uv_gpa_is_mmr
From: Robin Holt <holt@xxxxxxx>
Provide a mechanism for determining if a global physical address is
pointing to a UV hub MMR.
To: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Robin Holt <holt@xxxxxxx>
Cc: Jack Steiner <steiner@xxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/include/asm/uv/uv_hub.h | 7 +++++++
1 file changed, 7 insertions(+)
diff -puN arch/x86/include/asm/uv/uv_hub.h~x86-uv-introduce-uv_gpa_is_mmr arch/x86/include/asm/uv/uv_hub.h
--- a/arch/x86/include/asm/uv/uv_hub.h~x86-uv-introduce-uv_gpa_is_mmr
+++ a/arch/x86/include/asm/uv/uv_hub.h
@@ -232,6 +232,13 @@ static inline unsigned long uv_gpa(void
return uv_soc_phys_ram_to_gpa(__pa(v));
}
+/* Top two bits indicate the requested address is in MMR space. */
+static inline int
+uv_gpa_in_mmr_space(unsigned long gpa)
+{
+ return (gpa >> 62) == 0x3UL;
+}
+
/* UV global physical address --> socket phys RAM */
static inline unsigned long uv_gpa_to_soc_phys_ram(unsigned long gpa)
{
_
Patches currently in -mm which might be from holt@xxxxxxx are
x86-uv-introduce-a-means-to-translate-from-gpa-socket_paddr.patch
x86-uv-xpc-needs-to-provide-an-abstraction-for-uv_gpa.patch
x86-uv-introduce-uv_gpa_is_mmr.patch
x86-uv-implement-a-gru_read_gpa-kernel-function.patch
x86-uv-update-xpc-to-handle-updated-bios-interface.patch
x86-uv-xpc-null-deref-when-mesq-becomes-empty.patch
x86-uv-xpc_make_first_contact-hang-due-to-not-accepting-active-state.patch
x86-uv-xpc-receive-message-reuse-triggers-invalid-bug_on.patch
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