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path: root/drivers/misc/cxl/irq.c
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Diffstat (limited to 'drivers/misc/cxl/irq.c')
-rw-r--r--drivers/misc/cxl/irq.c56
1 files changed, 36 insertions, 20 deletions
diff --git a/drivers/misc/cxl/irq.c b/drivers/misc/cxl/irq.c
index 680cd263436d..583b42afeda2 100644
--- a/drivers/misc/cxl/irq.c
+++ b/drivers/misc/cxl/irq.c
@@ -30,12 +30,12 @@ static irqreturn_t handle_psl_slice_error(struct cxl_context *ctx, u64 dsisr, u6
serr = cxl_p1n_read(ctx->afu, CXL_PSL_SERR_An);
afu_debug = cxl_p1n_read(ctx->afu, CXL_AFU_DEBUG_An);
- dev_crit(&ctx->afu->dev, "PSL ERROR STATUS: 0x%.16llx\n", errstat);
- dev_crit(&ctx->afu->dev, "PSL_FIR1: 0x%.16llx\n", fir1);
- dev_crit(&ctx->afu->dev, "PSL_FIR2: 0x%.16llx\n", fir2);
- dev_crit(&ctx->afu->dev, "PSL_SERR_An: 0x%.16llx\n", serr);
- dev_crit(&ctx->afu->dev, "PSL_FIR_SLICE_An: 0x%.16llx\n", fir_slice);
- dev_crit(&ctx->afu->dev, "CXL_PSL_AFU_DEBUG_An: 0x%.16llx\n", afu_debug);
+ dev_crit(&ctx->afu->dev, "PSL ERROR STATUS: 0x%016llx\n", errstat);
+ dev_crit(&ctx->afu->dev, "PSL_FIR1: 0x%016llx\n", fir1);
+ dev_crit(&ctx->afu->dev, "PSL_FIR2: 0x%016llx\n", fir2);
+ dev_crit(&ctx->afu->dev, "PSL_SERR_An: 0x%016llx\n", serr);
+ dev_crit(&ctx->afu->dev, "PSL_FIR_SLICE_An: 0x%016llx\n", fir_slice);
+ dev_crit(&ctx->afu->dev, "CXL_PSL_AFU_DEBUG_An: 0x%016llx\n", afu_debug);
dev_crit(&ctx->afu->dev, "STOPPING CXL TRACE\n");
cxl_stop_trace(ctx->afu->adapter);
@@ -54,10 +54,10 @@ irqreturn_t cxl_slice_irq_err(int irq, void *data)
fir_slice = cxl_p1n_read(afu, CXL_PSL_FIR_SLICE_An);
errstat = cxl_p2n_read(afu, CXL_PSL_ErrStat_An);
afu_debug = cxl_p1n_read(afu, CXL_AFU_DEBUG_An);
- dev_crit(&afu->dev, "PSL_SERR_An: 0x%.16llx\n", serr);
- dev_crit(&afu->dev, "PSL_FIR_SLICE_An: 0x%.16llx\n", fir_slice);
- dev_crit(&afu->dev, "CXL_PSL_ErrStat_An: 0x%.16llx\n", errstat);
- dev_crit(&afu->dev, "CXL_PSL_AFU_DEBUG_An: 0x%.16llx\n", afu_debug);
+ dev_crit(&afu->dev, "PSL_SERR_An: 0x%016llx\n", serr);
+ dev_crit(&afu->dev, "PSL_FIR_SLICE_An: 0x%016llx\n", fir_slice);
+ dev_crit(&afu->dev, "CXL_PSL_ErrStat_An: 0x%016llx\n", errstat);
+ dev_crit(&afu->dev, "CXL_PSL_AFU_DEBUG_An: 0x%016llx\n", afu_debug);
cxl_p1n_write(afu, CXL_PSL_SERR_An, serr);
@@ -72,7 +72,7 @@ static irqreturn_t cxl_irq_err(int irq, void *data)
WARN(1, "CXL ERROR interrupt %i\n", irq);
err_ivte = cxl_p1_read(adapter, CXL_PSL_ErrIVTE);
- dev_crit(&adapter->dev, "PSL_ErrIVTE: 0x%.16llx\n", err_ivte);
+ dev_crit(&adapter->dev, "PSL_ErrIVTE: 0x%016llx\n", err_ivte);
dev_crit(&adapter->dev, "STOPPING CXL TRACE\n");
cxl_stop_trace(adapter);
@@ -80,7 +80,7 @@ static irqreturn_t cxl_irq_err(int irq, void *data)
fir1 = cxl_p1_read(adapter, CXL_PSL_FIR1);
fir2 = cxl_p1_read(adapter, CXL_PSL_FIR2);
- dev_crit(&adapter->dev, "PSL_FIR1: 0x%.16llx\nPSL_FIR2: 0x%.16llx\n", fir1, fir2);
+ dev_crit(&adapter->dev, "PSL_FIR1: 0x%016llx\nPSL_FIR2: 0x%016llx\n", fir1, fir2);
return IRQ_HANDLED;
}
@@ -147,7 +147,7 @@ static irqreturn_t cxl_irq(int irq, void *data, struct cxl_irq_info *irq_info)
if (dsisr & CXL_PSL_DSISR_An_PE)
return handle_psl_slice_error(ctx, dsisr, irq_info->errstat);
if (dsisr & CXL_PSL_DSISR_An_AE) {
- pr_devel("CXL interrupt: AFU Error %.llx\n", irq_info->afu_err);
+ pr_devel("CXL interrupt: AFU Error 0x%016llx\n", irq_info->afu_err);
if (ctx->pending_afu_err) {
/*
@@ -158,7 +158,7 @@ static irqreturn_t cxl_irq(int irq, void *data, struct cxl_irq_info *irq_info)
* probably best that we log them somewhere:
*/
dev_err_ratelimited(&ctx->afu->dev, "CXL AFU Error "
- "undelivered to pe %i: %.llx\n",
+ "undelivered to pe %i: 0x%016llx\n",
ctx->pe, irq_info->afu_err);
} else {
spin_lock(&ctx->lock);
@@ -211,8 +211,8 @@ static irqreturn_t cxl_irq_multiplexed(int irq, void *data)
}
rcu_read_unlock();
- WARN(1, "Unable to demultiplex CXL PSL IRQ for PE %i DSISR %.16llx DAR"
- " %.16llx\n(Possible AFU HW issue - was a term/remove acked"
+ WARN(1, "Unable to demultiplex CXL PSL IRQ for PE %i DSISR %016llx DAR"
+ " %016llx\n(Possible AFU HW issue - was a term/remove acked"
" with outstanding transactions?)\n", ph, irq_info.dsisr,
irq_info.dar);
return fail_psl_irq(afu, &irq_info);
@@ -341,6 +341,9 @@ int cxl_register_psl_err_irq(struct cxl *adapter)
void cxl_release_psl_err_irq(struct cxl *adapter)
{
+ if (adapter->err_virq != irq_find_mapping(NULL, adapter->err_hwirq))
+ return;
+
cxl_p1_write(adapter, CXL_PSL_ErrIVTE, 0x0000000000000000);
cxl_unmap_irq(adapter->err_virq, adapter);
cxl_release_one_irq(adapter, adapter->err_hwirq);
@@ -374,6 +377,9 @@ int cxl_register_serr_irq(struct cxl_afu *afu)
void cxl_release_serr_irq(struct cxl_afu *afu)
{
+ if (afu->serr_virq != irq_find_mapping(NULL, afu->serr_hwirq))
+ return;
+
cxl_p1n_write(afu, CXL_PSL_SERR_An, 0x0000000000000000);
cxl_unmap_irq(afu->serr_virq, afu);
cxl_release_one_irq(afu->adapter, afu->serr_hwirq);
@@ -400,12 +406,15 @@ int cxl_register_psl_irq(struct cxl_afu *afu)
void cxl_release_psl_irq(struct cxl_afu *afu)
{
+ if (afu->psl_virq != irq_find_mapping(NULL, afu->psl_hwirq))
+ return;
+
cxl_unmap_irq(afu->psl_virq, afu);
cxl_release_one_irq(afu->adapter, afu->psl_hwirq);
kfree(afu->psl_irq_name);
}
-void afu_irq_name_free(struct cxl_context *ctx)
+static void afu_irq_name_free(struct cxl_context *ctx)
{
struct cxl_irq_name *irq_name, *tmp;
@@ -421,6 +430,9 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
int rc, r, i, j = 1;
struct cxl_irq_name *irq_name;
+ /* Initialize the list head to hold irq names */
+ INIT_LIST_HEAD(&ctx->irq_names);
+
if ((rc = cxl_alloc_irq_ranges(&ctx->irqs, ctx->afu->adapter, count)))
return rc;
@@ -432,13 +444,12 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
ctx->irq_bitmap = kcalloc(BITS_TO_LONGS(count),
sizeof(*ctx->irq_bitmap), GFP_KERNEL);
if (!ctx->irq_bitmap)
- return -ENOMEM;
+ goto out;
/*
* Allocate names first. If any fail, bail out before allocating
* actual hardware IRQs.
*/
- INIT_LIST_HEAD(&ctx->irq_names);
for (r = 1; r < CXL_IRQ_RANGES; r++) {
for (i = 0; i < ctx->irqs.range[r]; i++) {
irq_name = kmalloc(sizeof(struct cxl_irq_name),
@@ -460,11 +471,12 @@ int afu_allocate_irqs(struct cxl_context *ctx, u32 count)
return 0;
out:
+ cxl_release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
afu_irq_name_free(ctx);
return -ENOMEM;
}
-void afu_register_hwirqs(struct cxl_context *ctx)
+static void afu_register_hwirqs(struct cxl_context *ctx)
{
irq_hw_number_t hwirq;
struct cxl_irq_name *irq_name;
@@ -511,4 +523,8 @@ void afu_release_irqs(struct cxl_context *ctx, void *cookie)
afu_irq_name_free(ctx);
cxl_release_irq_ranges(&ctx->irqs, ctx->afu->adapter);
+
+ kfree(ctx->irq_bitmap);
+ ctx->irq_bitmap = NULL;
+ ctx->irq_count = 0;
}
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