[PATCH v6 2/7]powerpc/powernv: Add OPAL support for Nest PMU
From: Madhavan Srinivasan <hidden>
Date: 2015-07-27 12:20:12
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Nest Counters can be configured via PORE Engine and OPAL provides an interface to start/stop it. OPAL side patches are posted in the skiboot mailing. Cc: Stewart Smith <redacted> Cc: Jeremy Kerr <jk@ozlabs.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Mackerras <redacted> Cc: Anton Blanchard <redacted> Cc: Sukadev Bhattiprolu <redacted> Cc: Anshuman Khandual <redacted> Cc: Stephane Eranian <redacted> Signed-off-by: Madhavan Srinivasan <redacted> --- arch/powerpc/include/asm/opal-api.h | 3 ++- arch/powerpc/include/asm/opal.h | 1 + arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + 3 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index e9e4c52f3685..4cd8128c6ebc 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h@@ -154,7 +154,8 @@ #define OPAL_FLASH_WRITE 111 #define OPAL_FLASH_ERASE 112 #define OPAL_PRD_MSG 113 -#define OPAL_LAST 113 +#define OPAL_NEST_IMA_CONTROL 116 +#define OPAL_LAST 116 /* Device tree flags */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 958e941c0cda..7c813ed52ab4 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h@@ -202,6 +202,7 @@ int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf, uint64_t size, uint64_t token); int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size, uint64_t token); +int64_t opal_nest_ima_control(uint64_t mode, uint64_t value); /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname,
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index d6a7b8252e4d..c475c04468fb 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S@@ -297,3 +297,4 @@ OPAL_CALL(opal_flash_read, OPAL_FLASH_READ); OPAL_CALL(opal_flash_write, OPAL_FLASH_WRITE); OPAL_CALL(opal_flash_erase, OPAL_FLASH_ERASE); OPAL_CALL(opal_prd_msg, OPAL_PRD_MSG); +OPAL_CALL(opal_nest_ima_control, OPAL_NEST_IMA_CONTROL);
--
1.9.1