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authorFrederic Barrat <fbarrat@linux.vnet.ibm.com>2016-03-04 14:26:28 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2016-03-09 05:05:43 +0300
commit5be587b1110132b4f05e0bc3515a145365e910fe (patch)
tree102af0ae101eef7c75f39bb696cda28ed45c8f65 /drivers/misc/cxl/fault.c
parentcca44c0192b03d179786ec34b070e7de42966cc6 (diff)
downloadlinux-5be587b1110132b4f05e0bc3515a145365e910fe.tar.xz
cxl: Introduce implementation-specific API
The backend API (in cxl.h) lists some low-level functions whose implementation is different on bare-metal and in a guest. Each environment implements its own functions, and the common code uses them through function pointers, defined in cxl_backend_ops Co-authored-by: Christophe Lombard <clombard@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/fault.c')
-rw-r--r--drivers/misc/cxl/fault.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 81c3f75b7330..ab740a19bd1e 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -101,7 +101,7 @@ static void cxl_ack_ae(struct cxl_context *ctx)
{
unsigned long flags;
- cxl_ack_irq(ctx, CXL_PSL_TFC_An_AE, 0);
+ cxl_ops->ack_irq(ctx, CXL_PSL_TFC_An_AE, 0);
spin_lock_irqsave(&ctx->lock, flags);
ctx->pending_fault = true;
@@ -125,7 +125,7 @@ static int cxl_handle_segment_miss(struct cxl_context *ctx,
else {
mb(); /* Order seg table write to TFC MMIO write */
- cxl_ack_irq(ctx, CXL_PSL_TFC_An_R, 0);
+ cxl_ops->ack_irq(ctx, CXL_PSL_TFC_An_R, 0);
}
return IRQ_HANDLED;
@@ -163,7 +163,7 @@ static void cxl_handle_page_fault(struct cxl_context *ctx,
local_irq_restore(flags);
pr_devel("Page fault successfully handled for pe: %i!\n", ctx->pe);
- cxl_ack_irq(ctx, CXL_PSL_TFC_An_R, 0);
+ cxl_ops->ack_irq(ctx, CXL_PSL_TFC_An_R, 0);
}
/*