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dmaengine: idxd: Separate user and kernel pasid enabling

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The idxd driver always gated the pasid enabling under a single knob and
this assumption is incorrect. The pasid used for kernel operation can be
independently toggled and has no dependency on the user pasid (and vice
versa). Split the two so they are independent "enabled" flags.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/165231431746.986466.5666862038354800551.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Dave Jiang
2022-05-11 17:11:57 -07:00
committed by Vinod Koul
parent b965182aee
commit 42a1b73852
5 changed files with 35 additions and 23 deletions
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6
drivers/dma/idxd/device.c
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@@ -966,7 +966,7 @@ static int idxd_wqs_setup(struct idxd_device *idxd)
if (!wq->group)
continue;
if (wq_shared(wq) && !device_swq_supported(idxd)) {
if (wq_shared(wq) && !wq_shared_supported(wq)) {
idxd->cmd_status = IDXD_SCMD_WQ_NO_SWQ_SUPPORT;
dev_warn(dev, "No shared wq support but configured.\n");
return -EINVAL;
@@ -1264,7 +1264,7 @@ int drv_enable_wq(struct idxd_wq *wq)
/* Shared WQ checks */
if (wq_shared(wq)) {
if (!device_swq_supported(idxd)) {
if (!wq_shared_supported(wq)) {
idxd->cmd_status = IDXD_SCMD_WQ_NO_SVM;
dev_dbg(dev, "PASID not enabled and shared wq.\n");
goto err;
@@ -1294,7 +1294,7 @@ int drv_enable_wq(struct idxd_wq *wq)
if (test_bit(IDXD_FLAG_CONFIGURABLE, &idxd->flags)) {
int priv = 0;
if (device_pasid_enabled(idxd)) {
if (wq_pasid_enabled(wq)) {
if (is_idxd_wq_kernel(wq) || wq_shared(wq)) {
u32 pasid = wq_dedicated(wq) ? idxd->pasid : 0;