diff mbox series

drm/i915: Add relocation exceptions for two other platforms

Message ID 20210601142442.100754-1-zbigniew.kempczynski@intel.com (mailing list archive)
State New, archived
Headers show
Series drm/i915: Add relocation exceptions for two other platforms | expand

Commit Message

Zbigniew Kempczyński June 1, 2021, 2:24 p.m. UTC
We have established previously we stop using relocations starting
from gen12 platforms with Tigerlake as an exception. We keep this
statement but we want to enable relocations conditionally for
Rocketlake and Alderlake under require_force_probe flag set.

Keeping relocations under require_force_probe flag is interim solution
until IGTs will be rewritten to use softpin.

v2: - remove inline from function definition (Jani)
    - fix indentation

Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
---
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 24 +++++++++++++++----
 1 file changed, 19 insertions(+), 5 deletions(-)

Comments

David Airlie June 3, 2021, 7:45 p.m. UTC | #1
On Wed, Jun 2, 2021 at 12:25 AM Zbigniew Kempczyński
<zbigniew.kempczynski@intel.com> wrote:
>
> We have established previously we stop using relocations starting
> from gen12 platforms with Tigerlake as an exception. We keep this
> statement but we want to enable relocations conditionally for
> Rocketlake and Alderlake under require_force_probe flag set.
>
> Keeping relocations under require_force_probe flag is interim solution
> until IGTs will be rewritten to use softpin.
>
> v2: - remove inline from function definition (Jani)
>     - fix indentation
>
> Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jason Ekstrand <jason@jlekstrand.net>

Acked-by: Dave Airlie <airlied@redhat.com>
> ---
>  .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 24 +++++++++++++++----
>  1 file changed, 19 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> index 297143511f99..78b86a7bc39a 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> @@ -491,16 +491,30 @@ eb_unreserve_vma(struct eb_vma *ev)
>         ev->flags &= ~__EXEC_OBJECT_RESERVED;
>  }
>
> +static bool platform_has_relocs_enabled(const struct i915_execbuffer *eb)
> +{
> +       /*
> +        * Relocations are disallowed starting from gen12 with Tigerlake
> +        * as an exception. We allow temporarily use relocations for Rocketlake
> +        * and Alderlake when require_force_probe flag is set.
> +        */
> +       if (INTEL_GEN(eb->i915) < 12 || IS_TIGERLAKE(eb->i915))
> +               return true;
> +
> +       if (INTEL_INFO(eb->i915)->require_force_probe &&
> +           (IS_ROCKETLAKE(eb->i915) || IS_ALDERLAKE_S(eb->i915) ||
> +            IS_ALDERLAKE_P(eb->i915)))
> +               return true;
> +
> +       return false;
> +}
> +
>  static int
>  eb_validate_vma(struct i915_execbuffer *eb,
>                 struct drm_i915_gem_exec_object2 *entry,
>                 struct i915_vma *vma)
>  {
> -       /* Relocations are disallowed for all platforms after TGL-LP.  This
> -        * also covers all platforms with local memory.
> -        */
> -       if (entry->relocation_count &&
> -           INTEL_GEN(eb->i915) >= 12 && !IS_TIGERLAKE(eb->i915))
> +       if (entry->relocation_count && !platform_has_relocs_enabled(eb))
>                 return -EINVAL;
>
>         if (unlikely(entry->flags & eb->invalid_flags))
> --
> 2.26.0
>
Daniel Vetter June 9, 2021, 1:14 p.m. UTC | #2
On Tue, Jun 01, 2021 at 04:24:42PM +0200, Zbigniew Kempczyński wrote:
> We have established previously we stop using relocations starting
> from gen12 platforms with Tigerlake as an exception. We keep this
> statement but we want to enable relocations conditionally for
> Rocketlake and Alderlake under require_force_probe flag set.
> 
> Keeping relocations under require_force_probe flag is interim solution
> until IGTs will be rewritten to use softpin.
> 
> v2: - remove inline from function definition (Jani)
>     - fix indentation
> 
> Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski@intel.com>
> Cc: Dave Airlie <airlied@redhat.com>
> Cc: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Jason Ekstrand <jason@jlekstrand.net>

This conflicts with Lucas' switch from INTEL_GEN to GRAPHICS_VER. Can you
pls rebase and resend (with Dave's ack included).
-Daniel

> ---
>  .../gpu/drm/i915/gem/i915_gem_execbuffer.c    | 24 +++++++++++++++----
>  1 file changed, 19 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> index 297143511f99..78b86a7bc39a 100644
> --- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> +++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
> @@ -491,16 +491,30 @@ eb_unreserve_vma(struct eb_vma *ev)
>  	ev->flags &= ~__EXEC_OBJECT_RESERVED;
>  }
>  
> +static bool platform_has_relocs_enabled(const struct i915_execbuffer *eb)
> +{
> +	/*
> +	 * Relocations are disallowed starting from gen12 with Tigerlake
> +	 * as an exception. We allow temporarily use relocations for Rocketlake
> +	 * and Alderlake when require_force_probe flag is set.
> +	 */
> +	if (INTEL_GEN(eb->i915) < 12 || IS_TIGERLAKE(eb->i915))
> +		return true;
> +
> +	if (INTEL_INFO(eb->i915)->require_force_probe &&
> +	    (IS_ROCKETLAKE(eb->i915) || IS_ALDERLAKE_S(eb->i915) ||
> +	     IS_ALDERLAKE_P(eb->i915)))
> +		return true;
> +
> +	return false;
> +}
> +
>  static int
>  eb_validate_vma(struct i915_execbuffer *eb,
>  		struct drm_i915_gem_exec_object2 *entry,
>  		struct i915_vma *vma)
>  {
> -	/* Relocations are disallowed for all platforms after TGL-LP.  This
> -	 * also covers all platforms with local memory.
> -	 */
> -	if (entry->relocation_count &&
> -	    INTEL_GEN(eb->i915) >= 12 && !IS_TIGERLAKE(eb->i915))
> +	if (entry->relocation_count && !platform_has_relocs_enabled(eb))
>  		return -EINVAL;
>  
>  	if (unlikely(entry->flags & eb->invalid_flags))
> -- 
> 2.26.0
>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index 297143511f99..78b86a7bc39a 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -491,16 +491,30 @@  eb_unreserve_vma(struct eb_vma *ev)
 	ev->flags &= ~__EXEC_OBJECT_RESERVED;
 }
 
+static bool platform_has_relocs_enabled(const struct i915_execbuffer *eb)
+{
+	/*
+	 * Relocations are disallowed starting from gen12 with Tigerlake
+	 * as an exception. We allow temporarily use relocations for Rocketlake
+	 * and Alderlake when require_force_probe flag is set.
+	 */
+	if (INTEL_GEN(eb->i915) < 12 || IS_TIGERLAKE(eb->i915))
+		return true;
+
+	if (INTEL_INFO(eb->i915)->require_force_probe &&
+	    (IS_ROCKETLAKE(eb->i915) || IS_ALDERLAKE_S(eb->i915) ||
+	     IS_ALDERLAKE_P(eb->i915)))
+		return true;
+
+	return false;
+}
+
 static int
 eb_validate_vma(struct i915_execbuffer *eb,
 		struct drm_i915_gem_exec_object2 *entry,
 		struct i915_vma *vma)
 {
-	/* Relocations are disallowed for all platforms after TGL-LP.  This
-	 * also covers all platforms with local memory.
-	 */
-	if (entry->relocation_count &&
-	    INTEL_GEN(eb->i915) >= 12 && !IS_TIGERLAKE(eb->i915))
+	if (entry->relocation_count && !platform_has_relocs_enabled(eb))
 		return -EINVAL;
 
 	if (unlikely(entry->flags & eb->invalid_flags))