[PATCH v1 8/9] powerpc/powernv: Add OPAL support for Nest PMU
From: Madhavan Srinivasan <hidden>
Date: 2015-06-02 16:02:57
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: 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 | 2 ++ arch/powerpc/platforms/powernv/opal-wrappers.S | 1 + 3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index 0321a90..8011a75 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h@@ -153,7 +153,8 @@ #define OPAL_FLASH_READ 110 #define OPAL_FLASH_WRITE 111 #define OPAL_FLASH_ERASE 112 -#define OPAL_LAST 112 +#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 042af1a..f86e5e9 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h@@ -201,6 +201,8 @@ int64_t opal_flash_write(uint64_t id, uint64_t offset, uint64_t buf, int64_t opal_flash_erase(uint64_t id, uint64_t offset, uint64_t size, uint64_t token); +int64_t opal_nest_ima_control(uint32_t value); + /* Internal functions */ extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data);
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index a7ade94..ce36a68 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S@@ -295,3 +295,4 @@ OPAL_CALL(opal_i2c_request, OPAL_I2C_REQUEST); 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_nest_ima_control, OPAL_NEST_IMA_CONTROL);
--
1.9.1