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| author | Christophe Lombard <clombard@linux.vnet.ibm.com> | 2016-03-04 12:26:34 +0100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-03-09 13:05:52 +1100 |
| commit | 444c4ba4616503baf68cffbf6748047d308b8cd2 (patch) | |
| tree | c4290add66a6062c6b735d97b448c4260c137d3b /drivers/misc/cxl/main.c | |
| parent | c0efa9aee8504ce16250320c1e5464bdb7e24400 (diff) | |
| download | linux-444c4ba4616503baf68cffbf6748047d308b8cd2.tar.bz2 | |
cxl: New hcalls to support cxl adapters
The hypervisor calls provide an interface with a coherent platform
facility and function. It matches version 0.16 of the 'PAPR changes'
document.
The following hcalls are supported:
H_ATTACH_CA_PROCESS Attach a process element to a coherent platform
function.
H_DETACH_CA_PROCESS Detach a process element from a coherent
platform function.
H_CONTROL_CA_FUNCTION Allow the partition to manipulate or query
certain coherent platform function behaviors.
H_COLLECT_CA_INT_INFO Collect interrupt info about a coherent.
platform function after an interrupt occurred
H_CONTROL_CA_FAULTS Control the operation of a coherent platform
function after a fault occurs.
H_DOWNLOAD_CA_FACILITY Support for downloading a base adapter image to
the coherent platform facility, and for
validating the entire image after the download.
H_CONTROL_CA_FACILITY Allow the partition to manipulate or query
certain coherent platform facility behaviors.
Co-authored-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Acked-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/misc/cxl/main.c')
| -rw-r--r-- | drivers/misc/cxl/main.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/misc/cxl/main.c b/drivers/misc/cxl/main.c index a9051512198c..814257b44534 100644 --- a/drivers/misc/cxl/main.c +++ b/drivers/misc/cxl/main.c @@ -162,6 +162,32 @@ int cxl_alloc_sst(struct cxl_context *ctx) return 0; } +/* print buffer content as integers when debugging */ +void cxl_dump_debug_buffer(void *buf, size_t buf_len) +{ +#ifdef DEBUG + int i, *ptr; + + /* + * We want to regroup up to 4 integers per line, which means they + * need to be in the same pr_devel() statement + */ + ptr = (int *) buf; + for (i = 0; i * 4 < buf_len; i += 4) { + if ((i + 3) * 4 < buf_len) + pr_devel("%.8x %.8x %.8x %.8x\n", ptr[i], ptr[i + 1], + ptr[i + 2], ptr[i + 3]); + else if ((i + 2) * 4 < buf_len) + pr_devel("%.8x %.8x %.8x\n", ptr[i], ptr[i + 1], + ptr[i + 2]); + else if ((i + 1) * 4 < buf_len) + pr_devel("%.8x %.8x\n", ptr[i], ptr[i + 1]); + else + pr_devel("%.8x\n", ptr[i]); + } +#endif /* DEBUG */ +} + /* Find a CXL adapter by it's number and increase it's refcount */ struct cxl *get_cxl_adapter(int num) { |