linux-kernel - [PATCH 1/5] powerpc: Add OPAL calls for LPC memory alloc/release

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Date:   Tue, 17 Sep 2019 11:42:57 +1000
From:   "Alastair D'Silva" <alastair@....ibm.com>
To:     alastair@...ilva.org
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Frederic Barrat <fbarrat@...ux.ibm.com>,
        Andrew Donnellan <ajd@...ux.ibm.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mahesh Salgaonkar <mahesh@...ux.vnet.ibm.com>,
        Allison Randal <allison@...utok.net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vaibhav Jain <vaibhav@...ux.ibm.com>,
        Anju T Sudhakar <anju@...ux.vnet.ibm.com>,
        Cédric Le Goater <clg@...d.org>,
        David Gibson <david@...son.dropbear.id.au>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Nicholas Piggin <npiggin@...il.com>,
        Alexey Kardashevskiy <aik@...abs.ru>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: [PATCH 1/5] powerpc: Add OPAL calls for LPC memory alloc/release

From: Alastair D'Silva <alastair@...ilva.org>

Add OPAL calls for LPC memory alloc/release

Signed-off-by: Alastair D'Silva <alastair@...ilva.org>
---
 arch/powerpc/include/asm/opal-api.h        | 4 +++-
 arch/powerpc/include/asm/opal.h            | 3 +++
 arch/powerpc/platforms/powernv/opal-call.c | 2 ++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/opal-api.h b/arch/powerpc/include/asm/opal-api.h
index 383242eb0dea..c58161cd7cfb 100644
--- a/arch/powerpc/include/asm/opal-api.h
+++ b/arch/powerpc/include/asm/opal-api.h
@@ -208,7 +208,9 @@
 #define OPAL_HANDLE_HMI2			166
 #define	OPAL_NX_COPROC_INIT			167
 #define OPAL_XIVE_GET_VP_STATE			170
-#define OPAL_LAST				170
+#define OPAL_NPU_MEM_ALLOC			171
+#define OPAL_NPU_MEM_RELEASE			172
+#define OPAL_LAST				172
 
 #define QUIESCE_HOLD			1 /* Spin all calls at entry */
 #define QUIESCE_REJECT			2 /* Fail all calls with OPAL_BUSY */
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 57bd029c715e..8c957a003be4 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -39,6 +39,9 @@ int64_t opal_npu_spa_clear_cache(uint64_t phb_id, uint32_t bdfn,
 				uint64_t PE_handle);
 int64_t opal_npu_tl_set(uint64_t phb_id, uint32_t bdfn, long cap,
 			uint64_t rate_phys, uint32_t size);
+int64_t opal_npu_mem_alloc(uint64_t phb_id, uint32_t bdfn,
+			uint64_t size, uint64_t *bar);
+int64_t opal_npu_mem_release(uint64_t phb_id, uint32_t bdfn);
 int64_t opal_console_write(int64_t term_number, __be64 *length,
 			   const uint8_t *buffer);
 int64_t opal_console_read(int64_t term_number, __be64 *length,
diff --git a/arch/powerpc/platforms/powernv/opal-call.c b/arch/powerpc/platforms/powernv/opal-call.c
index 29ca523c1c79..09a280446507 100644
--- a/arch/powerpc/platforms/powernv/opal-call.c
+++ b/arch/powerpc/platforms/powernv/opal-call.c
@@ -287,3 +287,5 @@ OPAL_CALL(opal_pci_set_pbcq_tunnel_bar,		OPAL_PCI_SET_PBCQ_TUNNEL_BAR);
 OPAL_CALL(opal_sensor_read_u64,			OPAL_SENSOR_READ_U64);
 OPAL_CALL(opal_sensor_group_enable,		OPAL_SENSOR_GROUP_ENABLE);
 OPAL_CALL(opal_nx_coproc_init,			OPAL_NX_COPROC_INIT);
+OPAL_CALL(opal_npu_mem_alloc,			OPAL_NPU_MEM_ALLOC);
+OPAL_CALL(opal_npu_mem_release,			OPAL_NPU_MEM_RELEASE);
-- 
2.21.0