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| author | Mohammed Khajapasha <mohammed.khajapasha@intel.com> | 2021-04-27 09:54:15 +0100 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2021-04-27 16:21:47 +0100 |
| commit | a9cf6ab3e7e4fc9e3720efe15cad3f7ae2322141 (patch) | |
| tree | ff9df6a87eeced35eb277429029132a4a5360431 /drivers | |
| parent | 6aed5673f00dcbe86dc40408cab6d85abacd20d4 (diff) | |
| download | linux-stable-a9cf6ab3e7e4fc9e3720efe15cad3f7ae2322141.tar.gz linux-stable-a9cf6ab3e7e4fc9e3720efe15cad3f7ae2322141.tar.bz2 linux-stable-a9cf6ab3e7e4fc9e3720efe15cad3f7ae2322141.zip | |
drm/i915/fbdev: Use lmem physical addresses for fb_mmap() on discrete
Use local memory io BAR address for fbdev's fb_mmap() operation on
discrete, fbdev uses the physical address of our framebuffer for its
fb_mmap() fn.
Signed-off-by: Mohammed Khajapasha <mohammed.khajapasha@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210427085417.120246-5-matthew.auld@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_fbdev.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_fbdev.c b/drivers/gpu/drm/i915/display/intel_fbdev.c index ccd00e65a5fe..2b37959da747 100644 --- a/drivers/gpu/drm/i915/display/intel_fbdev.c +++ b/drivers/gpu/drm/i915/display/intel_fbdev.c @@ -41,6 +41,8 @@ #include <drm/drm_fb_helper.h> #include <drm/drm_fourcc.h> +#include "gem/i915_gem_lmem.h" + #include "i915_drv.h" #include "intel_display_types.h" #include "intel_fbdev.h" @@ -178,6 +180,7 @@ static int intelfb_create(struct drm_fb_helper *helper, unsigned long flags = 0; bool prealloc = false; void __iomem *vaddr; + struct drm_i915_gem_object *obj; int ret; if (intel_fb && @@ -232,13 +235,27 @@ static int intelfb_create(struct drm_fb_helper *helper, info->fbops = &intelfb_ops; /* setup aperture base/size for vesafb takeover */ - info->apertures->ranges[0].base = ggtt->gmadr.start; - info->apertures->ranges[0].size = ggtt->mappable_end; + obj = intel_fb_obj(&intel_fb->base); + if (i915_gem_object_is_lmem(obj)) { + struct intel_memory_region *mem = obj->mm.region; + + info->apertures->ranges[0].base = mem->io_start; + info->apertures->ranges[0].size = mem->total; + + /* Use fbdev's framebuffer from lmem for discrete */ + info->fix.smem_start = + (unsigned long)(mem->io_start + + i915_gem_object_get_dma_address(obj, 0)); + info->fix.smem_len = obj->base.size; + } else { + info->apertures->ranges[0].base = ggtt->gmadr.start; + info->apertures->ranges[0].size = ggtt->mappable_end; - /* Our framebuffer is the entirety of fbdev's system memory */ - info->fix.smem_start = - (unsigned long)(ggtt->gmadr.start + vma->node.start); - info->fix.smem_len = vma->node.size; + /* Our framebuffer is the entirety of fbdev's system memory */ + info->fix.smem_start = + (unsigned long)(ggtt->gmadr.start + vma->node.start); + info->fix.smem_len = vma->node.size; + } vaddr = i915_vma_pin_iomap(vma); if (IS_ERR(vaddr)) { |