Re: [Intel-gfx] [PATCH v6 13/19] drm/i915/gen8: Add ppgtt info and debug_dump
Reviewed the patch & it looks fine.
Reviewed-by: "Akash Goel "
On 7/29/2015 9:53 PM, Michel Thierry wrote:
v2: Clean up patch after rebases.
v3: gen8_dump_ppgtt for 32b and 48b PPGTT.
v4: Use used_pml4es/pdpes (Akash).
v5: Rebase after Mika's ppgtt cleanup / scratch merge patch series.
v6: Rely on used_px bits instead of null checking (Akash)
Cc: Akash Goel
Signed-off-by: Ben Widawsky
Signed-off-by: Michel Thierry (v2+)
---
drivers/gpu/drm/i915/i915_debugfs.c | 18
drivers/gpu/drm/i915/i915_gem_gtt.c | 84 +
2 files changed, 94 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 23a69307..b6f1a13 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2250,7 +2250,6 @@ static void gen6_ppgtt_info(struct seq_file *m, struct
drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
- struct drm_file *file;
int i;
if (INTEL_INFO(dev)->gen == 6)
@@ -2273,13 +2272,6 @@ static void gen6_ppgtt_info(struct seq_file *m, struct
drm_device *dev)
ppgtt->debug_dump(ppgtt, m);
}
- list_for_each_entry_reverse(file, &dev->filelist, lhead) {
- struct drm_i915_file_private *file_priv = file->driver_priv;
-
- seq_printf(m, "proc: %s\n",
- get_pid_task(file->pid, PIDTYPE_PID)->comm);
- idr_for_each(&file_priv->context_idr, per_file_ctx, m);
- }
seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
}
@@ -2288,6 +2280,7 @@ static int i915_ppgtt_info(struct seq_file *m, void *data)
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_file *file;
int ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
@@ -2299,6 +2292,15 @@ static int i915_ppgtt_info(struct seq_file *m, void
*data)
else if (INTEL_INFO(dev)->gen >= 6)
gen6_ppgtt_info(m, dev);
+ list_for_each_entry_reverse(file, &dev->filelist, lhead) {
+ struct drm_i915_file_private *file_priv = file->driver_priv;
+
+ seq_printf(m, "\nproc: %s\n",
+ get_pid_task(file->pid, PIDTYPE_PID)->comm);
+ idr_for_each(&file_priv->context_idr, per_file_ctx,
+(void *)(unsigned long)m);
+ }
+
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 73cfe56..0d7c7c1 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1361,6 +1361,89 @@ static int gen8_alloc_va_range(struct i915_address_space
*vm,
return gen8_alloc_va_range_3lvl(vm, &ppgtt->pdp, start, length);
}
+static void gen8_dump_pdp(struct i915_page_directory_pointer *pdp,
+ uint64_t start, uint64_t length,
+ gen8_pte_t scratch_pte,
+ struct seq_file *m)
+{
+ struct i915_page_directory *pd;
+ uint64_t temp;
+ uint32_t pdpe;
+
+ gen8_for_each_pdpe(pd, pdp, start, length, temp, pdpe) {
+ struct i915_page_table *pt;
+ uint64_t pd_len = length;
+ uint64_t pd_start = start;
+ uint32_t pde;
+
+ if (!test_bit(pdpe, pdp->used_pdpes))
+ continue;
+
+ seq_printf(m, "\tPDPE #%d\n", pdpe);
+ gen8_for_each_pde(pt, pd, pd_start, pd_len, temp, pde) {
+ uint32_t pte;
+ gen8_pte_t *pt_vaddr;
+
+ if (!test_bit(pde, pd->used_pdes))
+ continue;
+
+ pt_vaddr = kmap_px(pt);
+ for (pte = 0; pte < GEN8_PTES; pte += 4) {
+ uint64_t va =
+ (pdpe << GEN8_PDPE_SHIFT) |
+ (pde << GEN8_PDE_SHIFT) |
+ (pte << GEN8_PTE_SHIFT);
+ int i;
+ bool found = false;
+
+ for (i = 0; i < 4; i++)
+ if (pt_vaddr[pte + i] != scratch_pte)
+ found = true;
+ if (!found)
+ continue;
+
+ seq_printf(m, "\t\t0x%llx [%03d,%03d,%04d]: =",
va, pdpe, pde, pte);
+ for (i = 0; i < 4; i++) {
+ if (pt_vaddr[pte + i] != scratch_pte)
+
[Intel-gfx] [PATCH v6 13/19] drm/i915/gen8: Add ppgtt info and debug_dump
v2: Clean up patch after rebases.
v3: gen8_dump_ppgtt for 32b and 48b PPGTT.
v4: Use used_pml4es/pdpes (Akash).
v5: Rebase after Mika's ppgtt cleanup / scratch merge patch series.
v6: Rely on used_px bits instead of null checking (Akash)
Cc: Akash Goel
Signed-off-by: Ben Widawsky
Signed-off-by: Michel Thierry (v2+)
---
drivers/gpu/drm/i915/i915_debugfs.c | 18
drivers/gpu/drm/i915/i915_gem_gtt.c | 84 +
2 files changed, 94 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c
b/drivers/gpu/drm/i915/i915_debugfs.c
index 23a69307..b6f1a13 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2250,7 +2250,6 @@ static void gen6_ppgtt_info(struct seq_file *m, struct
drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
struct intel_engine_cs *ring;
- struct drm_file *file;
int i;
if (INTEL_INFO(dev)->gen == 6)
@@ -2273,13 +2272,6 @@ static void gen6_ppgtt_info(struct seq_file *m, struct
drm_device *dev)
ppgtt->debug_dump(ppgtt, m);
}
- list_for_each_entry_reverse(file, &dev->filelist, lhead) {
- struct drm_i915_file_private *file_priv = file->driver_priv;
-
- seq_printf(m, "proc: %s\n",
- get_pid_task(file->pid, PIDTYPE_PID)->comm);
- idr_for_each(&file_priv->context_idr, per_file_ctx, m);
- }
seq_printf(m, "ECOCHK: 0x%08x\n", I915_READ(GAM_ECOCHK));
}
@@ -2288,6 +2280,7 @@ static int i915_ppgtt_info(struct seq_file *m, void *data)
struct drm_info_node *node = m->private;
struct drm_device *dev = node->minor->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ struct drm_file *file;
int ret = mutex_lock_interruptible(&dev->struct_mutex);
if (ret)
@@ -2299,6 +2292,15 @@ static int i915_ppgtt_info(struct seq_file *m, void
*data)
else if (INTEL_INFO(dev)->gen >= 6)
gen6_ppgtt_info(m, dev);
+ list_for_each_entry_reverse(file, &dev->filelist, lhead) {
+ struct drm_i915_file_private *file_priv = file->driver_priv;
+
+ seq_printf(m, "\nproc: %s\n",
+ get_pid_task(file->pid, PIDTYPE_PID)->comm);
+ idr_for_each(&file_priv->context_idr, per_file_ctx,
+(void *)(unsigned long)m);
+ }
+
intel_runtime_pm_put(dev_priv);
mutex_unlock(&dev->struct_mutex);
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 73cfe56..0d7c7c1 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -1361,6 +1361,89 @@ static int gen8_alloc_va_range(struct i915_address_space
*vm,
return gen8_alloc_va_range_3lvl(vm, &ppgtt->pdp, start, length);
}
+static void gen8_dump_pdp(struct i915_page_directory_pointer *pdp,
+ uint64_t start, uint64_t length,
+ gen8_pte_t scratch_pte,
+ struct seq_file *m)
+{
+ struct i915_page_directory *pd;
+ uint64_t temp;
+ uint32_t pdpe;
+
+ gen8_for_each_pdpe(pd, pdp, start, length, temp, pdpe) {
+ struct i915_page_table *pt;
+ uint64_t pd_len = length;
+ uint64_t pd_start = start;
+ uint32_t pde;
+
+ if (!test_bit(pdpe, pdp->used_pdpes))
+ continue;
+
+ seq_printf(m, "\tPDPE #%d\n", pdpe);
+ gen8_for_each_pde(pt, pd, pd_start, pd_len, temp, pde) {
+ uint32_t pte;
+ gen8_pte_t *pt_vaddr;
+
+ if (!test_bit(pde, pd->used_pdes))
+ continue;
+
+ pt_vaddr = kmap_px(pt);
+ for (pte = 0; pte < GEN8_PTES; pte += 4) {
+ uint64_t va =
+ (pdpe << GEN8_PDPE_SHIFT) |
+ (pde << GEN8_PDE_SHIFT) |
+ (pte << GEN8_PTE_SHIFT);
+ int i;
+ bool found = false;
+
+ for (i = 0; i < 4; i++)
+ if (pt_vaddr[pte + i] != scratch_pte)
+ found = true;
+ if (!found)
+ continue;
+
+ seq_printf(m, "\t\t0x%llx [%03d,%03d,%04d]: =",
va, pdpe, pde, pte);
+ for (i = 0; i < 4; i++) {
+ if (pt_vaddr[pte + i] != scratch_pte)
+ seq_printf(m, " %llx",
pt_vaddr[pte + i]);
+
