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Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-fixes 

A range of fixes for the Armada DRM driver:
- A missing wakeup could result in overlay frames being delayed, causing
  video playback to hiccup.
- Avoid unmapping a dma-buf attachment which was never mapped
- Fix the overlay when partially off the screen by switching to the
  drm_plane_helper_check_update() helper and using the calculated
  coordinates to set the start address.
- Remove an incorrect assignment to crtc->mode - which should be the
  unadjusted mode.
- Fix a missing call to drm_plane_cleanup() in the overlay code.

* 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  drm/armada: avoid saving the adjusted mode to crtc->mode
  drm/armada: fix overlay when partially off-screen
  drm/armada: convert overlay to use drm_plane_helper_check_update()
  drm/armada: fix gem object free after failed prime import
  drm/armada: fix incorrect overlay plane cleanup
  drm/armada: fix missing overlay wake-up
This commit is contained in:
Dave Airlie 2015-07-17 10:06:04 +10:00
parent 61f2669fce c62ff6b3c7
commit 8f6644ca97
3 changed files with 78 additions and 50 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/armada/armada_crtc.c
View File

@ -531,8 +531,6 @@ static int armada_drm_crtc_mode_set(struct drm_crtc *crtc,
drm_crtc_vblank_off(crtc);
crtc->mode = *adj;
val = dcrtc->dumb_ctrl & ~CFG_DUMB_ENA;
if (val != dcrtc->dumb_ctrl) {
dcrtc->dumb_ctrl = val;

5
drivers/gpu/drm/armada/armada_gem.c
View File

@ -69,8 +69,9 @@ void armada_gem_free_object(struct drm_gem_object *obj)
if (dobj->obj.import_attach) {
/* We only ever display imported data */
dma_buf_unmap_attachment(dobj->obj.import_attach, dobj->sgt,
DMA_TO_DEVICE);
if (dobj->sgt)
dma_buf_unmap_attachment(dobj->obj.import_attach,
dobj->sgt, DMA_TO_DEVICE);
drm_prime_gem_destroy(&dobj->obj, NULL);
}

121
drivers/gpu/drm/armada/armada_overlay.c
View File

@ -7,6 +7,7 @@
* published by the Free Software Foundation.
*/
#include <drm/drmP.h>
#include <drm/drm_plane_helper.h>
#include "armada_crtc.h"
#include "armada_drm.h"
#include "armada_fb.h"
@ -85,16 +86,8 @@ static void armada_plane_vbl(struct armada_crtc *dcrtc, void *data)
if (fb)
armada_drm_queue_unref_work(dcrtc->crtc.dev, fb);
}
static unsigned armada_limit(int start, unsigned size, unsigned max)
{
int end = start + size;
if (end < 0)
return 0;
if (start < 0)
start = 0;
return (unsigned)end > max ? max - start : end - start;
wake_up(&dplane->vbl.wait);
}
static int
@ -105,26 +98,39 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
{
struct armada_plane *dplane = drm_to_armada_plane(plane);
struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc);
struct drm_rect src = {
.x1 = src_x,
.y1 = src_y,
.x2 = src_x + src_w,
.y2 = src_y + src_h,
};
struct drm_rect dest = {
.x1 = crtc_x,
.y1 = crtc_y,
.x2 = crtc_x + crtc_w,
.y2 = crtc_y + crtc_h,
};
const struct drm_rect clip = {
.x2 = crtc->mode.hdisplay,
.y2 = crtc->mode.vdisplay,
};
uint32_t val, ctrl0;
unsigned idx = 0;
bool visible;
int ret;
crtc_w = armada_limit(crtc_x, crtc_w, dcrtc->crtc.mode.hdisplay);
crtc_h = armada_limit(crtc_y, crtc_h, dcrtc->crtc.mode.vdisplay);
ret = drm_plane_helper_check_update(plane, crtc, fb, &src, &dest, &clip,
0, INT_MAX, true, false, &visible);
if (ret)
return ret;
ctrl0 = CFG_DMA_FMT(drm_fb_to_armada_fb(fb)->fmt) |
CFG_DMA_MOD(drm_fb_to_armada_fb(fb)->mod) |
CFG_CBSH_ENA | CFG_DMA_HSMOOTH | CFG_DMA_ENA;
/* Does the position/size result in nothing to display? */
if (crtc_w == 0 || crtc_h == 0) {
if (!visible)
ctrl0 &= ~CFG_DMA_ENA;
}
/*
* FIXME: if the starting point is off screen, we need to
* adjust src_x, src_y, src_w, src_h appropriately, and
* according to the scale.
*/
if (!dcrtc->plane) {
dcrtc->plane = plane;
@ -134,15 +140,19 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
/* FIXME: overlay on an interlaced display */
/* Just updating the position/size? */
if (plane->fb == fb && dplane->ctrl0 == ctrl0) {
val = (src_h & 0xffff0000) | src_w >> 16;
val = (drm_rect_height(&src) & 0xffff0000) |
drm_rect_width(&src) >> 16;
dplane->src_hw = val;
writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_HPXL_VLN);
val = crtc_h << 16 | crtc_w;
val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
dplane->dst_hw = val;
writel_relaxed(val, dcrtc->base + LCD_SPU_DZM_HPXL_VLN);
val = crtc_y << 16 | crtc_x;
val = dest.y1 << 16 | dest.x1;
dplane->dst_yx = val;
writel_relaxed(val, dcrtc->base + LCD_SPU_DMA_OVSA_HPXL_VLN);
return 0;
} else if (~dplane->ctrl0 & ctrl0 & CFG_DMA_ENA) {
/* Power up the Y/U/V FIFOs on ENA 0->1 transitions */
@ -150,15 +160,14 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
dcrtc->base + LCD_SPU_SRAM_PARA1);
}
ret = wait_event_timeout(dplane->vbl.wait,
list_empty(&dplane->vbl.update.node),
HZ/25);
if (ret < 0)
return ret;
wait_event_timeout(dplane->vbl.wait,
list_empty(&dplane->vbl.update.node),
HZ/25);
if (plane->fb != fb) {
struct armada_gem_object *obj = drm_fb_obj(fb);
uint32_t sy, su, sv;
uint32_t addr[3], pixel_format;
int i, num_planes, hsub;
/*
* Take a reference on the new framebuffer - we want to
@ -178,26 +187,39 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
older_fb);
}
src_y >>= 16;
src_x >>= 16;
sy = obj->dev_addr + fb->offsets[0] + src_y * fb->pitches[0] +
src_x * fb->bits_per_pixel / 8;
su = obj->dev_addr + fb->offsets[1] + src_y * fb->pitches[1] +
src_x;
sv = obj->dev_addr + fb->offsets[2] + src_y * fb->pitches[2] +
src_x;
src_y = src.y1 >> 16;
src_x = src.x1 >> 16;
armada_reg_queue_set(dplane->vbl.regs, idx, sy,
pixel_format = fb->pixel_format;
hsub = drm_format_horz_chroma_subsampling(pixel_format);
num_planes = drm_format_num_planes(pixel_format);
/*
* Annoyingly, shifting a YUYV-format image by one pixel
* causes the U/V planes to toggle. Toggle the UV swap.
* (Unfortunately, this causes momentary colour flickering.)
*/
if (src_x & (hsub - 1) && num_planes == 1)
ctrl0 ^= CFG_DMA_MOD(CFG_SWAPUV);
for (i = 0; i < num_planes; i++)
addr[i] = obj->dev_addr + fb->offsets[i] +
src_y * fb->pitches[i] +
src_x * drm_format_plane_cpp(pixel_format, i);
for (; i < ARRAY_SIZE(addr); i++)
addr[i] = 0;
armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
LCD_SPU_DMA_START_ADDR_Y0);
armada_reg_queue_set(dplane->vbl.regs, idx, su,
armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
LCD_SPU_DMA_START_ADDR_U0);
armada_reg_queue_set(dplane->vbl.regs, idx, sv,
armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
LCD_SPU_DMA_START_ADDR_V0);
armada_reg_queue_set(dplane->vbl.regs, idx, sy,
armada_reg_queue_set(dplane->vbl.regs, idx, addr[0],
LCD_SPU_DMA_START_ADDR_Y1);
armada_reg_queue_set(dplane->vbl.regs, idx, su,
armada_reg_queue_set(dplane->vbl.regs, idx, addr[1],
LCD_SPU_DMA_START_ADDR_U1);
armada_reg_queue_set(dplane->vbl.regs, idx, sv,
armada_reg_queue_set(dplane->vbl.regs, idx, addr[2],
LCD_SPU_DMA_START_ADDR_V1);
val = fb->pitches[0] << 16 | fb->pitches[0];
@ -208,24 +230,27 @@ armada_plane_update(struct drm_plane *plane, struct drm_crtc *crtc,
LCD_SPU_DMA_PITCH_UV);
}
val = (src_h & 0xffff0000) | src_w >> 16;
val = (drm_rect_height(&src) & 0xffff0000) | drm_rect_width(&src) >> 16;
if (dplane->src_hw != val) {
dplane->src_hw = val;
armada_reg_queue_set(dplane->vbl.regs, idx, val,
LCD_SPU_DMA_HPXL_VLN);
}
val = crtc_h << 16 | crtc_w;
val = drm_rect_height(&dest) << 16 | drm_rect_width(&dest);
if (dplane->dst_hw != val) {
dplane->dst_hw = val;
armada_reg_queue_set(dplane->vbl.regs, idx, val,
LCD_SPU_DZM_HPXL_VLN);
}
val = crtc_y << 16 | crtc_x;
val = dest.y1 << 16 | dest.x1;
if (dplane->dst_yx != val) {
dplane->dst_yx = val;
armada_reg_queue_set(dplane->vbl.regs, idx, val,
LCD_SPU_DMA_OVSA_HPXL_VLN);
}
if (dplane->ctrl0 != ctrl0) {
dplane->ctrl0 = ctrl0;
armada_reg_queue_mod(dplane->vbl.regs, idx, ctrl0,
@ -279,7 +304,11 @@ static int armada_plane_disable(struct drm_plane *plane)
static void armada_plane_destroy(struct drm_plane *plane)
{
kfree(plane);
struct armada_plane *dplane = drm_to_armada_plane(plane);
drm_plane_cleanup(plane);
kfree(dplane);
}
static int armada_plane_set_property(struct drm_plane *plane,