diff options
| -rw-r--r-- | drivers/misc/cxl/api.c | 19 | ||||
| -rw-r--r-- | drivers/misc/cxl/cxl.h | 1 | ||||
| -rw-r--r-- | drivers/misc/cxl/guest.c | 3 | ||||
| -rw-r--r-- | drivers/misc/cxl/native.c | 3 | ||||
| -rw-r--r-- | include/misc/cxl.h | 8 |
5 files changed, 2 insertions, 32 deletions
diff --git a/drivers/misc/cxl/api.c b/drivers/misc/cxl/api.c index 753b1a698fc4..21d620e29fea 100644 --- a/drivers/misc/cxl/api.c +++ b/drivers/misc/cxl/api.c @@ -324,7 +324,6 @@ int cxl_start_context(struct cxl_context *ctx, u64 wed, if (task) { ctx->pid = get_task_pid(task, PIDTYPE_PID); kernel = false; - ctx->real_mode = false; /* acquire a reference to the task's mm */ ctx->mm = get_task_mm(current); @@ -388,24 +387,6 @@ void cxl_set_master(struct cxl_context *ctx) } EXPORT_SYMBOL_GPL(cxl_set_master); -int cxl_set_translation_mode(struct cxl_context *ctx, bool real_mode) -{ - if (ctx->status == STARTED) { - /* - * We could potentially update the PE and issue an update LLCMD - * to support this, but it doesn't seem to have a good use case - * since it's trivial to just create a second kernel context - * with different translation modes, so until someone convinces - * me otherwise: - */ - return -EBUSY; - } - - ctx->real_mode = real_mode; - return 0; -} -EXPORT_SYMBOL_GPL(cxl_set_translation_mode); - /* wrappers around afu_* file ops which are EXPORTED */ int cxl_fd_open(struct inode *inode, struct file *file) { diff --git a/drivers/misc/cxl/cxl.h b/drivers/misc/cxl/cxl.h index 918d4fb742d1..af8794719956 100644 --- a/drivers/misc/cxl/cxl.h +++ b/drivers/misc/cxl/cxl.h @@ -613,7 +613,6 @@ struct cxl_context { bool pe_inserted; bool master; bool kernel; - bool real_mode; bool pending_irq; bool pending_fault; bool pending_afu_err; diff --git a/drivers/misc/cxl/guest.c b/drivers/misc/cxl/guest.c index 4644f16606a3..f5dc740fcd13 100644 --- a/drivers/misc/cxl/guest.c +++ b/drivers/misc/cxl/guest.c @@ -623,9 +623,6 @@ static int guest_attach_process(struct cxl_context *ctx, bool kernel, u64 wed, u { pr_devel("in %s\n", __func__); - if (ctx->real_mode) - return -EPERM; - ctx->kernel = kernel; if (ctx->afu->current_mode == CXL_MODE_DIRECTED) return attach_afu_directed(ctx, wed, amr); diff --git a/drivers/misc/cxl/native.c b/drivers/misc/cxl/native.c index 98f867fcef24..c9d5d82dce8e 100644 --- a/drivers/misc/cxl/native.c +++ b/drivers/misc/cxl/native.c @@ -605,6 +605,7 @@ u64 cxl_calculate_sr(bool master, bool kernel, bool real_mode, bool p9) sr |= CXL_PSL_SR_An_MP; if (mfspr(SPRN_LPCR) & LPCR_TC) sr |= CXL_PSL_SR_An_TC; + if (kernel) { if (!real_mode) sr |= CXL_PSL_SR_An_R; @@ -629,7 +630,7 @@ u64 cxl_calculate_sr(bool master, bool kernel, bool real_mode, bool p9) static u64 calculate_sr(struct cxl_context *ctx) { - return cxl_calculate_sr(ctx->master, ctx->kernel, ctx->real_mode, + return cxl_calculate_sr(ctx->master, ctx->kernel, false, cxl_is_power9()); } diff --git a/include/misc/cxl.h b/include/misc/cxl.h index b712be544f8c..82cc6ffafe2d 100644 --- a/include/misc/cxl.h +++ b/include/misc/cxl.h @@ -174,14 +174,6 @@ int cxl_afu_reset(struct cxl_context *ctx); void cxl_set_master(struct cxl_context *ctx); /* - * Sets the context to use real mode memory accesses to operate with - * translation disabled. Note that this only makes sense for kernel contexts - * under bare metal, and will not work with virtualisation. May only be - * performed on stopped contexts. - */ -int cxl_set_translation_mode(struct cxl_context *ctx, bool real_mode); - -/* * Map and unmap the AFU Problem Space area. The amount and location mapped * depends on if this context is a master or slave. */ |