From f1664ed8ae98d17b294e01a5a0220f635f207824 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Date: Tue, 16 Oct 2007 01:29:49 -0700
Subject: [PATCH] ps3fb: don't keep the borders for non-fullscreen modes in XDR
memory
Don't keep the borders for non-fullscreen modes in XDR memory:
- Extract ps3fb_sync_image()
- Work around the alignment restrictions of L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT
by using an offset with L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP
- Only copy the visible part of the screen on every vblank
- Always put the real frame buffer at the start of video memory
- Clear fullscreen DDR memory on mode change
Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
drivers/video/ps3fb.c | 131 ++++++++++++++++++++++++------------------
1 file changed, 75 insertions(+), 56 deletions(-)
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index d6160e016b33b..88e15d4b56842 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -54,6 +54,7 @@
#define DDR_SIZE (0) /* used no ddr */
#define GPU_CMD_BUF_SIZE (64 * 1024)
#define GPU_IOIF (0x0d000000UL)
+#define GPU_ALIGN_UP(x) _ALIGN_UP((x), 64)
#define PS3FB_FULL_MODE_BIT 0x80
@@ -136,6 +137,10 @@ struct ps3fb_par {
int mode_id, new_mode_id;
int res_index;
unsigned int num_frames; /* num of frame buffers */
+ unsigned int width;
+ unsigned int height;
+ unsigned long full_offset; /* start of fullscreen DDR fb */
+ unsigned long fb_offset; /* start of actual DDR fb */
};
struct ps3fb_res_table {
@@ -291,15 +296,6 @@ static const struct fb_videomode ps3fb_modedb[] = {
/* Start of the virtual frame buffer (relative to fullscreen ) */
#define VP_OFF(i) ((WIDTH(i) * Y_OFF(i) + X_OFF(i)) * BPP)
-/*
- * Start of the virtual frame buffer (relative to start of video memory)
- * This is PAGE_SIZE aligned for easier mmap()
- */
-#define VFB_OFF(i) PAGE_ALIGN(VP_OFF(i))
-
-/* Start of the fullscreen frame buffer (relative to start of video memory) */
-#define FB_OFF(i) (-VP_OFF(i) & ~PAGE_MASK)
-
static int ps3fb_mode;
module_param(ps3fb_mode, int, 0);
@@ -386,63 +382,72 @@ static const struct fb_videomode *ps3fb_default_mode(int id)
return &ps3fb_modedb[mode - 1];
}
-static int ps3fb_sync(struct fb_info *info, u32 frame)
+static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
+ u64 dst_offset, u64 src_offset, u32 width,
+ u32 height, u64 line_length)
{
- struct ps3fb_par *par = info->par;
- int i, status, error = 0;
- u32 xres, yres;
- u64 fb_ioif, offset;
-
- acquire_console_sem();
-
- i = par->res_index;
- xres = ps3fb_res[i].xres;
- yres = ps3fb_res[i].yres;
-
- if (frame > par->num_frames - 1) {
- dev_dbg(info->device, "%s: invalid frame number (%u)\n",
- __func__, frame);
- error = -EINVAL;
- goto out;
- }
- offset = xres * yres * BPP * frame;
+ int status;
- fb_ioif = GPU_IOIF + FB_OFF(i) + offset;
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
- offset, fb_ioif,
+ dst_offset, GPU_IOIF + src_offset,
L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
- (xres << 16) | yres,
- xres * BPP); /* line_length */
+ (width << 16) | height,
+ line_length);
if (status)
- dev_err(info->device,
+ dev_err(dev,
"%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
__func__, status);
#ifdef HEAD_A
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
- 0, offset, 0, 0);
+ 0, frame_offset, 0, 0);
if (status)
- dev_err(info->device,
- "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
+ dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
__func__, status);
#endif
#ifdef HEAD_B
status = lv1_gpu_context_attribute(ps3fb.context_handle,
L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
- 1, offset, 0, 0);
+ 1, frame_offset, 0, 0);
if (status)
- dev_err(info->device,
- "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
+ dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
__func__, status);
#endif
+}
+
+static int ps3fb_sync(struct fb_info *info, u32 frame)
+{
+ struct ps3fb_par *par = info->par;
+ int i, error = 0;
+ u32 xres, yres;
+ u64 line_length, base;
+
+ acquire_console_sem();
+
+ if (frame > par->num_frames - 1) {
+ dev_dbg(info->device, "%s: invalid frame number (%u)\n",
+ __func__, frame);
+ error = -EINVAL;
+ goto out;
+ }
+
+ i = par->res_index;
+ xres = ps3fb_res[i].xres;
+ yres = ps3fb_res[i].yres;
+
+ line_length = xres * BPP;
+ base = frame * yres * line_length;
+
+ ps3fb_sync_image(info->device, base + par->full_offset,
+ base + par->fb_offset, base, par->width, par->height,
+ line_length);
out:
release_console_sem();
return error;
}
-
static int ps3fb_open(struct fb_info *info, int user)
{
atomic_inc(&ps3fb.f_count);
@@ -472,7 +477,6 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
u32 line_length;
int mode;
- int i;
dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
info->var.xres);
@@ -539,9 +543,7 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
}
/* Memory limit */
- i = ps3fb_get_res_table(var->xres, var->yres, mode);
- if (ps3fb_res[i].xres*ps3fb_res[i].yres*BPP >
- ps3fb.xdr_size - VFB_OFF(i)) {
+ if (var->yres * line_length > ps3fb.xdr_size) {
dev_dbg(info->device, "Not enough memory\n");
return -ENOMEM;
}
@@ -559,9 +561,9 @@ static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
static int ps3fb_set_par(struct fb_info *info)
{
struct ps3fb_par *par = info->par;
- unsigned int mode;
+ unsigned int mode, lines, maxlines;
int i;
- unsigned long offset;
+ unsigned long offset, dst;
dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
info->var.xres, info->var.xres_virtual,
@@ -574,11 +576,9 @@ static int ps3fb_set_par(struct fb_info *info)
i = ps3fb_get_res_table(info->var.xres, info->var.yres, mode);
par->res_index = i;
- offset = VFB_OFF(i);
- info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea) + offset;
- info->fix.smem_len = ps3fb.xdr_size - offset;
- info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
- memset(ps3fb.xdr_ea, 0, ps3fb.xdr_size);
+ info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
+ info->fix.smem_len = ps3fb.xdr_size;
+ info->screen_base = (char __iomem *)ps3fb.xdr_ea;
par->num_frames = info->fix.smem_len/
(ps3fb_res[i].xres*ps3fb_res[i].yres*BPP);
@@ -586,6 +586,12 @@ static int ps3fb_set_par(struct fb_info *info)
/* Keep the special bits we cannot set using fb_var_screeninfo */
par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
+ par->width = info->var.xres;
+ par->height = info->var.yres;
+ offset = VP_OFF(i);
+ par->fb_offset = GPU_ALIGN_UP(offset);
+ par->full_offset = par->fb_offset - offset;
+
if (par->new_mode_id != par->mode_id) {
if (ps3av_set_video_mode(par->new_mode_id)) {
par->new_mode_id = par->mode_id;
@@ -594,6 +600,21 @@ static int ps3fb_set_par(struct fb_info *info)
par->mode_id = par->new_mode_id;
}
+ /* Clear XDR frame buffer memory */
+ memset(ps3fb.xdr_ea, 0, ps3fb.xdr_size);
+
+ /* Clear DDR frame buffer memory */
+ lines = ps3fb_res[i].yres * par->num_frames;
+ if (par->full_offset)
+ lines++;
+ maxlines = ps3fb.xdr_size / info->fix.line_length;
+ for (dst = 0; lines; dst += maxlines * info->fix.line_length) {
+ unsigned int l = min(lines, maxlines);
+ ps3fb_sync_image(info->device, 0, dst, 0, ps3fb_res[i].xres, l,
+ info->fix.line_length);
+ lines -= l;
+ }
+
return 0;
}
@@ -1005,7 +1026,6 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
u64 lpar_reports_size = 0;
u64 xdr_lpar;
int status, res_index;
- unsigned long offset;
struct task_struct *task;
status = ps3_open_hv_device(dev);
@@ -1088,13 +1108,12 @@ static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
par->res_index = res_index;
par->num_frames = 1;
- offset = VFB_OFF(res_index);
- info->screen_base = (char __iomem *)ps3fb.xdr_ea + offset;
+ info->screen_base = (char __iomem *)ps3fb.xdr_ea;
info->fbops = &ps3fb_ops;
info->fix = ps3fb_fix;
- info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea) + offset;
- info->fix.smem_len = ps3fb.xdr_size - offset;
+ info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
+ info->fix.smem_len = ps3fb.xdr_size;
info->pseudo_palette = par->pseudo_palette;
info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST;
--
2.30.2