diff options
| author | Andrew Banman <abanman@sgi.com> | 2016-09-21 19:09:16 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-09-22 12:16:13 +0300 |
| commit | 5e4f96fe2a61c759d5d47f8112813618805c85a0 (patch) | |
| tree | 37224ea5cac6cf9d41ca20db6460daded10c7284 /arch/x86/include | |
| parent | 60e1c842c7ea3dd6a65660864554565cc737dd86 (diff) | |
| download | linux-5e4f96fe2a61c759d5d47f8112813618805c85a0.tar.xz | |
x86/platform/uv/BAU: Add generic function pointers
Many BAU functions have different implementations depending on the UV
version. Rather than switching on the uvhub_version throughout the driver,
we can define a set of operations for each version. This is especially
beneficial for UV4, which will require many new MMR read/write functions.
Currently, the set of abstracted functions are the same for UV1, UV2, and
UV3. The functions were chosen because each one will have a different
implementation for UV4. Other functions will be added as needed to handle
new implementations or to cleanup the existing differences between UV1,
UV2, and UV3, i.e. read_status and wait_completion.
Signed-off-by: Andrew Banman <abanman@sgi.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Mike Travis <travis@sgi.com>
Acked-by: Dimitri Sivanich <sivanich@sgi.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: akpm@linux-foundation.org
Cc: rja@sgi.com
Link: http://lkml.kernel.org/r/1474474161-265604-6-git-send-email-abanman@sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/uv/uv_bau.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index a46f270e2789..a7a93a5beb00 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -385,6 +385,17 @@ struct uv2_3_bau_msg_header { /* bits 127:120 */ }; +/* Abstracted BAU functions */ +struct bau_operations { + unsigned long (*read_l_sw_ack)(void); + unsigned long (*read_g_sw_ack)(int pnode); + unsigned long (*bau_gpa_to_offset)(unsigned long vaddr); + void (*write_l_sw_ack)(unsigned long mmr); + void (*write_g_sw_ack)(int pnode, unsigned long mmr); + void (*write_payload_first)(int pnode, unsigned long mmr); + void (*write_payload_last)(int pnode, unsigned long mmr); +}; + /* * The activation descriptor: * The format of the message to send, plus all accompanying control |