Patchwork [part1,v2,6/9] ps3: Detect the current lpar

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Submitter Andre Heider
Date Aug. 11, 2011, 7:31 p.m.
Message ID <1313091073-4572-7-git-send-email-a.heider@gmail.com>
Download mbox | patch
Permalink /patch/109672/
State Changes Requested
Headers show

Comments

Andre Heider - Aug. 11, 2011, 7:31 p.m.
Detect it by reading the ss laid repository node, and make it
accessible via ps3_get_ss_laid().

Signed-off-by: Andre Heider <a.heider@gmail.com>
---
 arch/powerpc/include/asm/ps3.h          |    6 ++++++
 arch/powerpc/platforms/ps3/platform.h   |    4 ++++
 arch/powerpc/platforms/ps3/repository.c |   19 +++++++++++++++++++
 arch/powerpc/platforms/ps3/setup.c      |    9 +++++++++
 4 files changed, 38 insertions(+), 0 deletions(-)
Geoff Levand - Aug. 23, 2011, 10:08 p.m.
Hi,

On 08/11/2011 12:31 PM, Andre Heider wrote:
> Detect it by reading the ss laid repository node, and make it
> accessible via ps3_get_ss_laid().

I'm wondering now if we even need this.  It is mainly used by your
later patch 8/9 that modifies ps3flash_init() to test if we should
call ps3_system_bus_driver_register().  If we don't use
ps3_get_ss_laid() and just allow ps3_system_bus_driver_register()
to be called, would the device probe fail and have the same result
as the test?

I would prefer to not have ps3_get_ss_laid() if possible.

-Geoff

Patch

diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h
index 7f065e1..9e8c878 100644
--- a/arch/powerpc/include/asm/ps3.h
+++ b/arch/powerpc/include/asm/ps3.h
@@ -39,6 +39,12 @@  union ps3_firmware_version {
 void ps3_get_firmware_version(union ps3_firmware_version *v);
 int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev);
 
+enum ps3_ss_laid {
+	PS3_SS_LAID_OTHEROS = 0x1080000004000001UL,
+};
+
+enum ps3_ss_laid ps3_get_ss_laid(void);
+
 /* 'Other OS' area */
 
 enum ps3_param_av_multi_out {
diff --git a/arch/powerpc/platforms/ps3/platform.h b/arch/powerpc/platforms/ps3/platform.h
index d9b4ec0..b912d15 100644
--- a/arch/powerpc/platforms/ps3/platform.h
+++ b/arch/powerpc/platforms/ps3/platform.h
@@ -235,4 +235,8 @@  int ps3_repository_read_spu_resource_id(unsigned int res_index,
 int ps3_repository_read_vuart_av_port(unsigned int *port);
 int ps3_repository_read_vuart_sysmgr_port(unsigned int *port);
 
+/* repository ss info */
+
+int ps3_repository_read_ss_laid(enum ps3_ss_laid *laid);
+
 #endif
diff --git a/arch/powerpc/platforms/ps3/repository.c b/arch/powerpc/platforms/ps3/repository.c
index 9908d61..06f8801 100644
--- a/arch/powerpc/platforms/ps3/repository.c
+++ b/arch/powerpc/platforms/ps3/repository.c
@@ -1038,6 +1038,25 @@  int ps3_repository_read_lpm_privileges(unsigned int be_index, u64 *lpar,
 			    lpar, rights);
 }
 
+/**
+ * ps3_repository_read_ss_laid - Read the lpar auth id
+ */
+
+int ps3_repository_read_ss_laid(enum ps3_ss_laid *laid)
+{
+	int result;
+	u64 id, v1;
+
+	lv1_get_logical_partition_id(&id);
+	result = read_node(PS3_LPAR_ID_PME,
+			   make_first_field("ss", 0),
+			   make_field("laid", 0),
+			   id, 0,
+			   &v1, NULL);
+	*laid = v1;
+	return result;
+}
+
 #if defined(DEBUG)
 
 int ps3_repository_dump_resource_info(const struct ps3_repository_device *repo)
diff --git a/arch/powerpc/platforms/ps3/setup.c b/arch/powerpc/platforms/ps3/setup.c
index 149bea2..9f23a6d 100644
--- a/arch/powerpc/platforms/ps3/setup.c
+++ b/arch/powerpc/platforms/ps3/setup.c
@@ -47,6 +47,7 @@  DEFINE_MUTEX(ps3_gpu_mutex);
 EXPORT_SYMBOL_GPL(ps3_gpu_mutex);
 
 static union ps3_firmware_version ps3_firmware_version;
+static enum ps3_ss_laid ps3_ss_laid;
 
 void ps3_get_firmware_version(union ps3_firmware_version *v)
 {
@@ -68,6 +69,12 @@  int ps3_compare_firmware_version(u16 major, u16 minor, u16 rev)
 }
 EXPORT_SYMBOL_GPL(ps3_compare_firmware_version);
 
+enum ps3_ss_laid ps3_get_ss_laid(void)
+{
+	return ps3_ss_laid;
+}
+EXPORT_SYMBOL_GPL(ps3_get_ss_laid);
+
 static void ps3_power_save(void)
 {
 	/*
@@ -200,6 +207,8 @@  static void __init ps3_setup_arch(void)
 	       ps3_firmware_version.major, ps3_firmware_version.minor,
 	       ps3_firmware_version.rev);
 
+	ps3_repository_read_ss_laid(&ps3_ss_laid);
+
 	ps3_spu_set_platform();
 
 #ifdef CONFIG_SMP