Re: [Intel-gfx] [PATCH 10/19] drm/i915/perf: Use gt-specific ggtt for OA and noa-wait buffers
On 06/09/2022 23:28, Umesh Nerlige Ramappa wrote:
On Tue, Sep 06, 2022 at 10:56:13PM +0300, Lionel Landwerlin wrote:
On 23/08/2022 23:41, Umesh Nerlige Ramappa wrote:
User passes uabi engine class and instance to the perf OA interface.
Use
gt corresponding to the engine to pin the buffers to the right ggtt.
Signed-off-by: Umesh Nerlige Ramappa
I didn't know there was a GGTT per engine.
Do I understand this correct?
No, GGTT is still per-gt. We just derive the gt from engine class
instance passed (as in engine->gt).
Oh thanks I understand now.
Reviewed-by: Lionel Landwerlin
Thanks,
-Lionel
---
drivers/gpu/drm/i915/i915_perf.c | 21 +++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_perf.c
b/drivers/gpu/drm/i915/i915_perf.c
index 87b92d2946f4..f7621b45966c 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1765,6 +1765,7 @@ static void gen12_init_oa_buffer(struct
i915_perf_stream *stream)
static int alloc_oa_buffer(struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = stream->perf->i915;
+ struct intel_gt *gt = stream->engine->gt;
struct drm_i915_gem_object *bo;
struct i915_vma *vma;
int ret;
@@ -1784,11 +1785,22 @@ static int alloc_oa_buffer(struct
i915_perf_stream *stream)
i915_gem_object_set_cache_coherency(bo, I915_CACHE_LLC);
/* PreHSW required 512K alignment, HSW requires 16M */
- vma = i915_gem_object_ggtt_pin(bo, NULL, 0, SZ_16M, 0);
+ vma = i915_vma_instance(bo, >ggtt->vm, NULL);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto err_unref;
}
+
+ /*
+ * PreHSW required 512K alignment.
+ * HSW and onwards, align to requested size of OA buffer.
+ */
+ ret = i915_vma_pin(vma, 0, SZ_16M, PIN_GLOBAL | PIN_HIGH);
+ if (ret) {
+ drm_err(>i915->drm, "Failed to pin OA buffer %d\n", ret);
+ goto err_unref;
+ }
+
stream->oa_buffer.vma = vma;
stream->oa_buffer.vaddr =
@@ -1838,6 +1850,7 @@ static u32 *save_restore_register(struct
i915_perf_stream *stream, u32 *cs,
static int alloc_noa_wait(struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = stream->perf->i915;
+ struct intel_gt *gt = stream->engine->gt;
struct drm_i915_gem_object *bo;
struct i915_vma *vma;
const u64 delay_ticks = 0x -
@@ -1878,12 +1891,16 @@ static int alloc_noa_wait(struct
i915_perf_stream *stream)
* multiple OA config BOs will have a jump to this address and it
* needs to be fixed during the lifetime of the i915/perf stream.
*/
- vma = i915_gem_object_ggtt_pin_ww(bo, , NULL, 0, 0, PIN_HIGH);
+ vma = i915_vma_instance(bo, >ggtt->vm, NULL);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out_ww;
}
+ ret = i915_vma_pin_ww(vma, , 0, 0, PIN_GLOBAL | PIN_HIGH);
+ if (ret)
+ goto out_ww;
+
batch = cs = i915_gem_object_pin_map(bo, I915_MAP_WB);
if (IS_ERR(batch)) {
ret = PTR_ERR(batch);
Re: [Intel-gfx] [PATCH 10/19] drm/i915/perf: Use gt-specific ggtt for OA and noa-wait buffers
On Tue, Sep 06, 2022 at 10:56:13PM +0300, Lionel Landwerlin wrote:
On 23/08/2022 23:41, Umesh Nerlige Ramappa wrote:
User passes uabi engine class and instance to the perf OA interface. Use
gt corresponding to the engine to pin the buffers to the right ggtt.
Signed-off-by: Umesh Nerlige Ramappa
I didn't know there was a GGTT per engine.
Do I understand this correct?
No, GGTT is still per-gt. We just derive the gt from engine class
instance passed (as in engine->gt).
Thanks,
-Lionel
---
drivers/gpu/drm/i915/i915_perf.c | 21 +++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 87b92d2946f4..f7621b45966c 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1765,6 +1765,7 @@ static void gen12_init_oa_buffer(struct i915_perf_stream
*stream)
static int alloc_oa_buffer(struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = stream->perf->i915;
+ struct intel_gt *gt = stream->engine->gt;
struct drm_i915_gem_object *bo;
struct i915_vma *vma;
int ret;
@@ -1784,11 +1785,22 @@ static int alloc_oa_buffer(struct i915_perf_stream
*stream)
i915_gem_object_set_cache_coherency(bo, I915_CACHE_LLC);
/* PreHSW required 512K alignment, HSW requires 16M */
- vma = i915_gem_object_ggtt_pin(bo, NULL, 0, SZ_16M, 0);
+ vma = i915_vma_instance(bo, >ggtt->vm, NULL);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto err_unref;
}
+
+ /*
+* PreHSW required 512K alignment.
+* HSW and onwards, align to requested size of OA buffer.
+*/
+ ret = i915_vma_pin(vma, 0, SZ_16M, PIN_GLOBAL | PIN_HIGH);
+ if (ret) {
+ drm_err(>i915->drm, "Failed to pin OA buffer %d\n", ret);
+ goto err_unref;
+ }
+
stream->oa_buffer.vma = vma;
stream->oa_buffer.vaddr =
@@ -1838,6 +1850,7 @@ static u32 *save_restore_register(struct i915_perf_stream
*stream, u32 *cs,
static int alloc_noa_wait(struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = stream->perf->i915;
+ struct intel_gt *gt = stream->engine->gt;
struct drm_i915_gem_object *bo;
struct i915_vma *vma;
const u64 delay_ticks = 0x -
@@ -1878,12 +1891,16 @@ static int alloc_noa_wait(struct i915_perf_stream
*stream)
* multiple OA config BOs will have a jump to this address and it
* needs to be fixed during the lifetime of the i915/perf stream.
*/
- vma = i915_gem_object_ggtt_pin_ww(bo, , NULL, 0, 0, PIN_HIGH);
+ vma = i915_vma_instance(bo, >ggtt->vm, NULL);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out_ww;
}
+ ret = i915_vma_pin_ww(vma, , 0, 0, PIN_GLOBAL | PIN_HIGH);
+ if (ret)
+ goto out_ww;
+
batch = cs = i915_gem_object_pin_map(bo, I915_MAP_WB);
if (IS_ERR(batch)) {
ret = PTR_ERR(batch);
Re: [Intel-gfx] [PATCH 10/19] drm/i915/perf: Use gt-specific ggtt for OA and noa-wait buffers
On 23/08/2022 23:41, Umesh Nerlige Ramappa wrote:
User passes uabi engine class and instance to the perf OA interface. Use
gt corresponding to the engine to pin the buffers to the right ggtt.
Signed-off-by: Umesh Nerlige Ramappa
I didn't know there was a GGTT per engine.
Do I understand this correct?
Thanks,
-Lionel
---
drivers/gpu/drm/i915/i915_perf.c | 21 +++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 87b92d2946f4..f7621b45966c 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1765,6 +1765,7 @@ static void gen12_init_oa_buffer(struct i915_perf_stream
*stream)
static int alloc_oa_buffer(struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = stream->perf->i915;
+ struct intel_gt *gt = stream->engine->gt;
struct drm_i915_gem_object *bo;
struct i915_vma *vma;
int ret;
@@ -1784,11 +1785,22 @@ static int alloc_oa_buffer(struct i915_perf_stream
*stream)
i915_gem_object_set_cache_coherency(bo, I915_CACHE_LLC);
/* PreHSW required 512K alignment, HSW requires 16M */
- vma = i915_gem_object_ggtt_pin(bo, NULL, 0, SZ_16M, 0);
+ vma = i915_vma_instance(bo, >ggtt->vm, NULL);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto err_unref;
}
+
+ /*
+* PreHSW required 512K alignment.
+* HSW and onwards, align to requested size of OA buffer.
+*/
+ ret = i915_vma_pin(vma, 0, SZ_16M, PIN_GLOBAL | PIN_HIGH);
+ if (ret) {
+ drm_err(>i915->drm, "Failed to pin OA buffer %d\n", ret);
+ goto err_unref;
+ }
+
stream->oa_buffer.vma = vma;
stream->oa_buffer.vaddr =
@@ -1838,6 +1850,7 @@ static u32 *save_restore_register(struct i915_perf_stream
*stream, u32 *cs,
static int alloc_noa_wait(struct i915_perf_stream *stream)
{
struct drm_i915_private *i915 = stream->perf->i915;
+ struct intel_gt *gt = stream->engine->gt;
struct drm_i915_gem_object *bo;
struct i915_vma *vma;
const u64 delay_ticks = 0x -
@@ -1878,12 +1891,16 @@ static int alloc_noa_wait(struct i915_perf_stream
*stream)
* multiple OA config BOs will have a jump to this address and it
* needs to be fixed during the lifetime of the i915/perf stream.
*/
- vma = i915_gem_object_ggtt_pin_ww(bo, , NULL, 0, 0, PIN_HIGH);
+ vma = i915_vma_instance(bo, >ggtt->vm, NULL);
if (IS_ERR(vma)) {
ret = PTR_ERR(vma);
goto out_ww;
}
+ ret = i915_vma_pin_ww(vma, , 0, 0, PIN_GLOBAL | PIN_HIGH);
+ if (ret)
+ goto out_ww;
+
batch = cs = i915_gem_object_pin_map(bo, I915_MAP_WB);
if (IS_ERR(batch)) {
ret = PTR_ERR(batch);
