diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_display.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_display.c | 88 |
1 files changed, 85 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c index b119d27271c1..51bab32fd8c6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_display.c @@ -33,6 +33,7 @@ #include "soc15_common.h" #include "gc/gc_11_0_0_offset.h" #include "gc/gc_11_0_0_sh_mask.h" +#include "bif/bif_4_1_d.h" #include <asm/div64.h> #include <linux/pci.h> @@ -1195,13 +1196,14 @@ static int amdgpu_display_get_fb_info(const struct amdgpu_framebuffer *amdgpu_fb static int amdgpu_display_gem_fb_verify_and_init(struct drm_device *dev, struct amdgpu_framebuffer *rfb, struct drm_file *file_priv, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd, struct drm_gem_object *obj) { int ret; rfb->base.obj[0] = obj; - drm_helper_mode_fill_fb_struct(dev, &rfb->base, mode_cmd); + drm_helper_mode_fill_fb_struct(dev, &rfb->base, info, mode_cmd); /* Verify that the modifier is supported. */ if (!drm_any_plane_has_format(dev, mode_cmd->pixel_format, mode_cmd->modifier[0])) { @@ -1296,6 +1298,7 @@ static int amdgpu_display_framebuffer_init(struct drm_device *dev, struct drm_framebuffer * amdgpu_display_user_framebuffer_create(struct drm_device *dev, struct drm_file *file_priv, + const struct drm_format_info *info, const struct drm_mode_fb_cmd2 *mode_cmd) { struct amdgpu_framebuffer *amdgpu_fb; @@ -1316,7 +1319,7 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev, /* Handle is imported dma-buf, so cannot be migrated to VRAM for scanout */ bo = gem_to_amdgpu_bo(obj); domains = amdgpu_display_supported_domains(drm_to_adev(dev), bo->flags); - if (obj->import_attach && !(domains & AMDGPU_GEM_DOMAIN_GTT)) { + if (drm_gem_is_imported(obj) && !(domains & AMDGPU_GEM_DOMAIN_GTT)) { drm_dbg_kms(dev, "Cannot create framebuffer from imported dma_buf\n"); drm_gem_object_put(obj); return ERR_PTR(-EINVAL); @@ -1329,7 +1332,7 @@ amdgpu_display_user_framebuffer_create(struct drm_device *dev, } ret = amdgpu_display_gem_fb_verify_and_init(dev, amdgpu_fb, file_priv, - mode_cmd, obj); + info, mode_cmd, obj); if (ret) { kfree(amdgpu_fb); drm_gem_object_put(obj); @@ -1788,3 +1791,82 @@ int amdgpu_display_resume_helper(struct amdgpu_device *adev) return 0; } +/* panic_bo is set in amdgpu_dm_plane_get_scanout_buffer() and only used in amdgpu_dm_set_pixel() + * they are called from the panic handler, and protected by the drm_panic spinlock. + */ +static struct amdgpu_bo *panic_abo; + +/* Use the indirect MMIO to write each pixel to the GPU VRAM, + * This is a simplified version of amdgpu_device_mm_access() + */ +static void amdgpu_display_set_pixel(struct drm_scanout_buffer *sb, + unsigned int x, + unsigned int y, + u32 color) +{ + struct amdgpu_res_cursor cursor; + unsigned long offset; + struct amdgpu_bo *abo = panic_abo; + struct amdgpu_device *adev = amdgpu_ttm_adev(abo->tbo.bdev); + uint32_t tmp; + + offset = x * 4 + y * sb->pitch[0]; + amdgpu_res_first(abo->tbo.resource, offset, 4, &cursor); + + tmp = cursor.start >> 31; + WREG32_NO_KIQ(mmMM_INDEX, ((uint32_t) cursor.start) | 0x80000000); + if (tmp != 0xffffffff) + WREG32_NO_KIQ(mmMM_INDEX_HI, tmp); + WREG32_NO_KIQ(mmMM_DATA, color); +} + +int amdgpu_display_get_scanout_buffer(struct drm_plane *plane, + struct drm_scanout_buffer *sb) +{ + struct amdgpu_bo *abo; + struct drm_framebuffer *fb = plane->state->fb; + + if (!fb) + return -EINVAL; + + DRM_DEBUG_KMS("Framebuffer %dx%d %p4cc\n", fb->width, fb->height, &fb->format->format); + + abo = gem_to_amdgpu_bo(fb->obj[0]); + if (!abo) + return -EINVAL; + + sb->width = fb->width; + sb->height = fb->height; + /* Use the generic linear format, because tiling will be disabled in panic_flush() */ + sb->format = drm_format_info(fb->format->format); + if (!sb->format) + return -EINVAL; + + sb->pitch[0] = fb->pitches[0]; + + if (abo->flags & AMDGPU_GEM_CREATE_NO_CPU_ACCESS) { + if (abo->tbo.resource->mem_type != TTM_PL_VRAM) { + drm_warn(plane->dev, "amdgpu panic, framebuffer not in VRAM\n"); + return -EINVAL; + } + /* Only handle 32bits format, to simplify mmio access */ + if (fb->format->cpp[0] != 4) { + drm_warn(plane->dev, "amdgpu panic, pixel format is not 32bits\n"); + return -EINVAL; + } + sb->set_pixel = amdgpu_display_set_pixel; + panic_abo = abo; + return 0; + } + if (!abo->kmap.virtual && + ttm_bo_kmap(&abo->tbo, 0, PFN_UP(abo->tbo.base.size), &abo->kmap)) { + drm_warn(plane->dev, "amdgpu bo map failed, panic won't be displayed\n"); + return -ENOMEM; + } + if (abo->kmap.bo_kmap_type & TTM_BO_MAP_IOMEM_MASK) + iosys_map_set_vaddr_iomem(&sb->map[0], abo->kmap.virtual); + else + iosys_map_set_vaddr(&sb->map[0], abo->kmap.virtual); + + return 0; +} |