| Message ID | 20241203092836.426422-2-jfalempe@redhat.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | drm/i915: Add drm_panic support | expand |
Hi Jocelyn, kernel test robot noticed the following build warnings: [auto build test WARNING on 44cff6c5b0b17a78bc0b30372bcd816cf6dd282a] url: https://github.com/intel-lab-lkp/linux/commits/Jocelyn-Falempe/drm-i915-fbdev-Add-intel_fbdev_get_vaddr/20241203-173213 base: 44cff6c5b0b17a78bc0b30372bcd816cf6dd282a patch link: https://lore.kernel.org/r/20241203092836.426422-2-jfalempe%40redhat.com patch subject: [PATCH v2 1/5] drm/i915/fbdev: Add intel_fbdev_get_vaddr() config: i386-randconfig-062-20241204 (https://download.01.org/0day-ci/archive/20241204/202412042119.5ErpNlAU-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241204/202412042119.5ErpNlAU-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202412042119.5ErpNlAU-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/gpu/drm/i915/display/intel_fb_pin.c:333:34: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@ drivers/gpu/drm/i915/display/intel_fb_pin.c:333:34: sparse: expected void * drivers/gpu/drm/i915/display/intel_fb_pin.c:333:34: sparse: got void [noderef] __iomem * vim +333 drivers/gpu/drm/i915/display/intel_fb_pin.c 330 331 void *intel_fb_get_vaddr(struct i915_vma *vma) 332 { > 333 return i915_vma_get_iomap(vma);
diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.c b/drivers/gpu/drm/i915/display/intel_fb_pin.c index d3a86f9c6bc86..c44019c7ab56b 100644 --- a/drivers/gpu/drm/i915/display/intel_fb_pin.c +++ b/drivers/gpu/drm/i915/display/intel_fb_pin.c @@ -327,3 +327,8 @@ void intel_plane_unpin_fb(struct intel_plane_state *old_plane_state) intel_dpt_unpin_from_ggtt(fb->dpt_vm); } } + +void *intel_fb_get_vaddr(struct i915_vma *vma) +{ + return i915_vma_get_iomap(vma); +} diff --git a/drivers/gpu/drm/i915/display/intel_fb_pin.h b/drivers/gpu/drm/i915/display/intel_fb_pin.h index ac0319b53af08..0141f5f2b1c7a 100644 --- a/drivers/gpu/drm/i915/display/intel_fb_pin.h +++ b/drivers/gpu/drm/i915/display/intel_fb_pin.h @@ -25,5 +25,6 @@ void intel_fb_unpin_vma(struct i915_vma *vma, unsigned long flags); int intel_plane_pin_fb(struct intel_plane_state *plane_state); void intel_plane_unpin_fb(struct intel_plane_state *old_plane_state); +void *intel_fb_get_vaddr(struct i915_vma *vma); #endif diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index 00852ff5b2470..1d12d1c047d02 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -695,3 +695,8 @@ struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbdev *fbdev) return to_intel_framebuffer(fbdev->helper.fb); } + +void *intel_fbdev_get_vaddr(struct intel_fbdev *fbdev) +{ + return intel_fb_get_vaddr(fbdev->vma); +} diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.h b/drivers/gpu/drm/i915/display/intel_fbdev.h index 08de2d5b34338..f033d4f1efe96 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.h +++ b/drivers/gpu/drm/i915/display/intel_fbdev.h @@ -17,6 +17,7 @@ struct intel_framebuffer; void intel_fbdev_setup(struct drm_i915_private *dev_priv); void intel_fbdev_set_suspend(struct drm_device *dev, int state, bool synchronous); struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbdev *fbdev); +void *intel_fbdev_get_vaddr(struct intel_fbdev *fbdev); #else static inline void intel_fbdev_setup(struct drm_i915_private *dev_priv) { @@ -30,6 +31,11 @@ static inline struct intel_framebuffer *intel_fbdev_framebuffer(struct intel_fbd { return NULL; } + +static inline void *intel_fbdev_get_vaddr(struct intel_fbdev *fbdev) +{ + return NULL; +} #endif #endif /* __INTEL_FBDEV_H__ */ diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h index 6a6be8048aa83..4ae610927fa77 100644 --- a/drivers/gpu/drm/i915/i915_vma.h +++ b/drivers/gpu/drm/i915/i915_vma.h @@ -353,6 +353,11 @@ static inline bool i915_node_color_differs(const struct drm_mm_node *node, return drm_mm_node_allocated(node) && node->color != color; } +static inline void __iomem *i915_vma_get_iomap(struct i915_vma *vma) +{ + return READ_ONCE(vma->iomap); +} + /** * i915_vma_pin_iomap - calls ioremap_wc to map the GGTT VMA via the aperture * @vma: VMA to iomap diff --git a/drivers/gpu/drm/xe/display/xe_fb_pin.c b/drivers/gpu/drm/xe/display/xe_fb_pin.c index 761510ae06904..576b1e98f39cd 100644 --- a/drivers/gpu/drm/xe/display/xe_fb_pin.c +++ b/drivers/gpu/drm/xe/display/xe_fb_pin.c @@ -421,3 +421,8 @@ u64 intel_dpt_offset(struct i915_vma *dpt_vma) { return 0; } + +void *intel_fb_get_vaddr(struct i915_vma *vma) +{ + return NULL; +}
The vaddr of the fbdev framebuffer is private to the struct intel_fbdev, so this function is needed to access it for drm_panic. Also the struct i915_vma is different between i915 and xe, so it requires a few functions to access fbdev->vma->iomap. Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com> --- v2: * Add intel_fb_get_vaddr() and i915_vma_get_iomap() to build with Xe driver. drivers/gpu/drm/i915/display/intel_fb_pin.c | 5 +++++ drivers/gpu/drm/i915/display/intel_fb_pin.h | 1 + drivers/gpu/drm/i915/display/intel_fbdev.c | 5 +++++ drivers/gpu/drm/i915/display/intel_fbdev.h | 6 ++++++ drivers/gpu/drm/i915/i915_vma.h | 5 +++++ drivers/gpu/drm/xe/display/xe_fb_pin.c | 5 +++++ 6 files changed, 27 insertions(+)