int s3cfb_unmap_default_video_memory(struct s3cfb_global *fbdev,
struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
#ifdef CONFIG_VCM
int i;
#endif
if (fix->smem_start) {
#ifdef CONFIG_VCM
vcm_unmap(win->s5p_vcm_res);
cma_free(fix->smem_start);
for (i = 0; i < CONFIG_FB_S3C_NR_BUFFERS; i++)
kfree(win->s3cfb_vcm[i].dev_vcm_res);
#else
iounmap(fb->screen_base);
#endif
fix->smem_start = 0;
fix->smem_len = 0;
dev_info(fbdev->dev, "[fb%d] video memory released\n", win->id);
}
return 0;
}
int s3cfb_unmap_video_memory(struct s3cfb_global *fbdev, struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
#ifdef CONFIG_VCM
struct fb_var_screeninfo *var = &fb->var;
int frame_num = var->yres_virtual / var->yres;
int i;
#endif
if (fix->smem_start) {
#ifdef CONFIG_VCM
vcm_unmap(win->s5p_vcm_res);
cma_free(fix->smem_start);
for (i = 0; i < frame_num; i++)
kfree(win->s3cfb_vcm[i].dev_vcm_res);
#endif
fix->smem_start = 0;
fix->smem_len = 0;
dev_info(fbdev->dev, "[fb%d] video memory released\n", win->id);
}
return 0;
}
int s3cfb_unmap_video_memory(struct s3cfb_global *fbdev, struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
#ifdef CONFIG_CMA
struct cma_info mem_info;
int err;
#endif
#if defined(CONFIG_CPU_EXYNOS4212) || defined(CONFIG_CPU_EXYNOS4412)
return 0;
#endif
if (fix->smem_start) {
#ifdef CONFIG_CMA
err = cma_info(&mem_info, fbdev->dev, 0);
if (ERR_PTR(err))
return -ENOMEM;
if (fix->smem_start >= mem_info.lower_bound &&
fix->smem_start <= mem_info.upper_bound)
cma_free(fix->smem_start);
#else
dma_free_coherent(fbdev->dev, fix->smem_len, fb->screen_base, fix->smem_start);
#endif
fix->smem_start = 0;
fix->smem_len = 0;
dev_info(fbdev->dev, "[fb%d] video memory released\n", win->id);
}
return 0;
}
/**
* frees a hardware buffer
* @param buffer buffer to free
*/
virtual void deallocAccelBuffer(void* buffer) {
PhysMap::iterator iter = m_physmap.find(buffer);
if (iter == m_physmap.end()) {
throw std::runtime_error("Invalid pointer freed");
}
cma_free(iter->second);
m_physmap.erase(iter);
}
static void vb2_cma_phys_put(void *buf_priv)
{
struct vb2_cma_phys_buf *buf = buf_priv;
if (atomic_dec_and_test(&buf->refcount)) {
cma_free(buf->paddr);
kfree(buf);
}
}
int s3cfb_unmap_default_video_memory(struct s3cfb_global *fbdev,
struct fb_info *fb)
{
struct fb_fix_screeninfo *fix = &fb->fix;
struct s3cfb_window *win = fb->par;
if (fix->smem_start) {
#ifdef CONFIG_S5P_MEM_CMA
cma_free(fix->smem_start);
#endif
fix->smem_start = 0;
fix->smem_len = 0;
dev_info(fbdev->dev, "[fb%d] video memory released\n", win->id);
}
return 0;
}
/**
* frees up all cma buffers and unmaps the register
*/
virtual ~XlnkDriver() {
for (PhysMap::iterator iter = m_physmap.begin(); iter != m_physmap.end(); ++iter) {
cma_free(iter->second);
}
cma_munmap(const_cast<AccelReg*>(m_reg), m_regSize);
}
