diff options
| author |   Jack Steiner <steiner@sgi.com> | 2011-05-11 12:50:28 -0500 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2011-05-25 14:20:13 +0200 |
| commit | 2a919596c16b4333af851ff473ebf96e289ab90c (patch) | |
| tree | c42043cf772205fe4dfb0ea8d208886ea055a013 /arch/x86/platform/uv/uv_time.c | |
| parent | x86, cpufeature: Update CPU feature RDRND to RDRAND (diff) | |
| download | linux-dev-2a919596c16b4333af851ff473ebf96e289ab90c.tar.xz linux-dev-2a919596c16b4333af851ff473ebf96e289ab90c.zip | |
x86, UV: Add support for SGI UV2 hub chip
This patch adds support for a new version of the SGI UV hub
chip. The hub chip is the node controller that connects multiple
blades into a larger coherent SSI.
For the most part, UV2 is compatible with UV1. The majority of
the changes are in the addresses of MMRs and in a few cases, the
contents of MMRs. These changes are the result in changes in the
system topology such as node configuration, processor types,
maximum nodes, physical address sizes, etc.
Signed-off-by: Jack Steiner <steiner@sgi.com>
Link: http://lkml.kernel.org/r/20110511175028.GA18006@sgi.com
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/platform/uv/uv_time.c')
| -rw-r--r-- | arch/x86/platform/uv/uv_time.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/arch/x86/platform/uv/uv_time.c b/arch/x86/platform/uv/uv_time.c index 0eb90184515f..9f29a01ee1b3 100644 --- a/arch/x86/platform/uv/uv_time.c +++ b/arch/x86/platform/uv/uv_time.c @@ -99,8 +99,12 @@ static void uv_rtc_send_IPI(int cpu) /* Check for an RTC interrupt pending */ static int uv_intr_pending(int pnode) { - return uv_read_global_mmr64(pnode, UVH_EVENT_OCCURRED0) & - UVH_EVENT_OCCURRED0_RTC1_MASK; + if (is_uv1_hub()) + return uv_read_global_mmr64(pnode, UVH_EVENT_OCCURRED0) & + UV1H_EVENT_OCCURRED0_RTC1_MASK; + else + return uv_read_global_mmr64(pnode, UV2H_EVENT_OCCURRED2) & + UV2H_EVENT_OCCURRED2_RTC_1_MASK; } /* Setup interrupt and return non-zero if early expiration occurred. */ @@ -114,8 +118,12 @@ static int uv_setup_intr(int cpu, u64 expires) UVH_RTC1_INT_CONFIG_M_MASK); uv_write_global_mmr64(pnode, UVH_INT_CMPB, -1L); - uv_write_global_mmr64(pnode, UVH_EVENT_OCCURRED0_ALIAS, - UVH_EVENT_OCCURRED0_RTC1_MASK); + if (is_uv1_hub()) + uv_write_global_mmr64(pnode, UVH_EVENT_OCCURRED0_ALIAS, + UV1H_EVENT_OCCURRED0_RTC1_MASK); + else + uv_write_global_mmr64(pnode, UV2H_EVENT_OCCURRED2_ALIAS, + UV2H_EVENT_OCCURRED2_RTC_1_MASK); val = (X86_PLATFORM_IPI_VECTOR << UVH_RTC1_INT_CONFIG_VECTOR_SHFT) | ((u64)apicid << UVH_RTC1_INT_CONFIG_APIC_ID_SHFT); |