From: Michael Bringmann <mwb@linux.vnet.ibm.com>
To: ltc-virtual-io@lists.linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: [PATCH 1/4] To: linuxppc-dev@lists.ozlabs.org
Date: Sun, 26 Mar 2017 10:20:23 -0500 [thread overview]
Message-ID: <149054161172.117828.10367025369970871058.stgit@powerkvm6.aus.stglabs.ibm.com> (raw)
In-Reply-To: <149054150088.117828.8160636606733671116.stgit@powerkvm6.aus.stglabs.ibm.com>
Cc: nfont@linux.vnet.ibm.com
Subject: [PATCH 1/4] powerpc/firmware: Add definitions for new drc-info firmware feature
Firmware Features: Define new bit flag representing the presence of
new device tree property "ibm,drc-info". The flag is used to tell
the front end processor when the Linux kernel supports the new properties,
and by the front end processor to tell the Linux kernel that the new
property is present in the device tree.
Signed-off-by: Michael Bringmann <mwb@linux.vnet.ibm.com>
---
arch/powerpc/include/asm/firmware.h | 3 ++-
arch/powerpc/include/asm/prom.h | 1 +
arch/powerpc/platforms/pseries/firmware.c | 1 +
3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 8645897..329d537 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -51,6 +51,7 @@
#define FW_FEATURE_BEST_ENERGY ASM_CONST(0x0000000080000000)
#define FW_FEATURE_TYPE1_AFFINITY ASM_CONST(0x0000000100000000)
#define FW_FEATURE_PRRN ASM_CONST(0x0000000200000000)
+#define FW_FEATURE_DRC_INFO ASM_CONST(0x0000000400000000)
#ifndef __ASSEMBLY__
@@ -67,7 +68,7 @@ enum {
FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO |
FW_FEATURE_SET_MODE | FW_FEATURE_BEST_ENERGY |
FW_FEATURE_TYPE1_AFFINITY | FW_FEATURE_PRRN |
- FW_FEATURE_HPT_RESIZE,
+ FW_FEATURE_HPT_RESIZE | FW_FEATURE_DRC_INFO,
FW_FEATURE_PSERIES_ALWAYS = 0,
FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL,
FW_FEATURE_POWERNV_ALWAYS = 0,
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 35c00d7..4fb02cc 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -172,6 +172,7 @@ struct of_drconf_cell {
#define OV5_HASH_GTSE 0x1940 /* Guest Translation Shoot Down Avail */
/* Radix Table Extensions */
#define OV5_RADIX_GTSE 0x1A40 /* Guest Translation Shoot Down Avail */
+#define OV5_DRC_INFO 0x1640 /* Redef Prop Structures: drc-info */
/* Option Vector 6: IBM PAPR hints */
#define OV6_LINUX 0x02 /* Linux is our OS */
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 63cc82a..757d757 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -114,6 +114,7 @@ struct vec5_fw_feature {
vec5_fw_features_table[] = {
{FW_FEATURE_TYPE1_AFFINITY, OV5_TYPE1_AFFINITY},
{FW_FEATURE_PRRN, OV5_PRRN},
+ {FW_FEATURE_DRC_INFO, OV5_DRC_INFO},
};
static void __init fw_vec5_feature_init(const char *vec5, unsigned long len)
next prev parent reply other threads:[~2017-03-26 15:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-26 15:20 [PATCH 0/4] powerpc/devtree: Add support for 'ibm, drc-info' property Michael Bringmann
2017-03-26 15:20 ` Michael Bringmann [this message]
2017-03-26 15:20 ` [PATCH 2/4] To: linuxppc-dev@lists.ozlabs.org Michael Bringmann
2017-03-26 15:20 ` [PATCH 3/4] " Michael Bringmann
2017-03-26 15:20 ` [PATCH 4/4] " Michael Bringmann
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