[PATCH] drm/i915: Reinstate the mmap ioctl for some platforms

[PATCH] drm/i915: Reinstate the mmap ioctl for some platforms

[Thomas Hellström]

Reinstate the mmap ioctl for all current integrated platforms.
The intention was really to have it disabled for discrete graphics
where we enforce a single mmap mode.

Fixes: 35cbd91eb541 ("drm/i915: Disable mmap ioctl for gen12+")
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_mman.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index 2fd155742bd2..09b5ed018aaf 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -62,10 +62,11 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
 	struct drm_i915_gem_object *obj;
 	unsigned long addr;
 
-	/* mmap ioctl is disallowed for all platforms after TGL-LP.  This also
-	 * covers all platforms with local memory.
+	/*
+	 * mmap ioctl is disallowed for all discrete platforms, and for
+	 * and for all platforms with GRAPHICS_VER > 12.
 	 */
-	if (GRAPHICS_VER(i915) >= 12 && !IS_TIGERLAKE(i915))
+	if (IS_DGFX(i915) || GRAPHICS_VER(i915) > 12)
 		return -EOPNOTSUPP;
 
 	if (args->flags & ~(I915_MMAP_WC))
-- 
2.31.1

[Intel-gfx] [PATCH] drm/i915: Reinstate the mmap ioctl for some platforms

[Thomas Hellström]

Reinstate the mmap ioctl for all current integrated platforms.
The intention was really to have it disabled for discrete graphics
where we enforce a single mmap mode.

Fixes: 35cbd91eb541 ("drm/i915: Disable mmap ioctl for gen12+")
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_mman.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_mman.c b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
index 2fd155742bd2..09b5ed018aaf 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_mman.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_mman.c
@@ -62,10 +62,11 @@ i915_gem_mmap_ioctl(struct drm_device *dev, void *data,
 	struct drm_i915_gem_object *obj;
 	unsigned long addr;
 
-	/* mmap ioctl is disallowed for all platforms after TGL-LP.  This also
-	 * covers all platforms with local memory.
+	/*
+	 * mmap ioctl is disallowed for all discrete platforms, and for
+	 * and for all platforms with GRAPHICS_VER > 12.
 	 */
-	if (GRAPHICS_VER(i915) >= 12 && !IS_TIGERLAKE(i915))
+	if (IS_DGFX(i915) || GRAPHICS_VER(i915) > 12)
 		return -EOPNOTSUPP;
 
 	if (args->flags & ~(I915_MMAP_WC))
-- 
2.31.1

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Re: [PATCH] drm/i915: Reinstate the mmap ioctl for some platforms

[Matthew Auld]

On Thu, 24 Jun 2021 at 11:53, Thomas Hellström
<thomas.hellstrom@linux.intel.com> wrote:
>
> Reinstate the mmap ioctl for all current integrated platforms.
> The intention was really to have it disabled for discrete graphics
> where we enforce a single mmap mode.
>
> Fixes: 35cbd91eb541 ("drm/i915: Disable mmap ioctl for gen12+")
> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>

Re: [Intel-gfx] [PATCH] drm/i915: Reinstate the mmap ioctl for some platforms

[Matthew Auld]

On Thu, 24 Jun 2021 at 11:53, Thomas Hellström
<thomas.hellstrom@linux.intel.com> wrote:
>
> Reinstate the mmap ioctl for all current integrated platforms.
> The intention was really to have it disabled for discrete graphics
> where we enforce a single mmap mode.
>
> Fixes: 35cbd91eb541 ("drm/i915: Disable mmap ioctl for gen12+")
> Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
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