* [PATCH v2 0/2] drm/rockchip: Optimization vop dpms control
@ 2015-01-22 10:29 ` Mark Yao
0 siblings, 0 replies; 10+ messages in thread
From: Mark Yao @ 2015-01-22 10:29 UTC (permalink / raw)
To: David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel,
Daniel Kurtz, dri-devel, linux-kernel, linux-rockchip
Cc: Mark Yao
drm dpms have many power modes, ON,OFF,SUSPEND,STANDBY, etc.
but vop only have enable/disable mode, maybe case such bug:
--> DRM_DPMS_ON: power on vop
--> DRM_DPMS_SUSPEND: power off vop
--> DRM_DPMS_OFF: already power off at SUSPEND, crash
so use a bool val is more suitable.
another problem at vop_crtc_dpms:
vop_enable()->drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
Changes in v2:
- fix mistake that set is_enabled wrong.
Mark Yao (2):
drm/rockchip: vop use is_enabled instead of dpms mode
drm/rockchip: vop: set vop enabled after enable iommu
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 2 +-
drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 17 +++++------------
drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 3 +--
3 files changed, 7 insertions(+), 15 deletions(-)
--
1.7.9.5
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 1/2] drm/rockchip: vop use is_enabled instead of dpms mode
2015-01-22 10:29 ` Mark Yao
@ 2015-01-22 10:29 ` Mark Yao
-1 siblings, 0 replies; 10+ messages in thread
From: Mark Yao @ 2015-01-22 10:29 UTC (permalink / raw)
To: David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel,
Daniel Kurtz, dri-devel, linux-kernel, linux-rockchip
Cc: Mark Yao
drm dpms have many power modes: ON,OFF,SUSPEND,STANDBY, etc.
but vop only have enable/disable mode, maybe case such bug:
--> DRM_DPMS_ON: power on vop
--> DRM_DPMS_SUSPEND: power off vop
--> DRM_DPMS_OFF: already power off at SUSPEND, crash
so use a bool val is more suitable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---
Changes in v2:
- fix mistake that set is_enabled wrong.
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 34 ++++++++++++++-------------
1 file changed, 18 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 9a5c571..d03eb7e 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -81,7 +81,7 @@ struct vop {
struct drm_crtc crtc;
struct device *dev;
struct drm_device *drm_dev;
- unsigned int dpms;
+ bool is_enabled;
int connector_type;
int connector_out_mode;
@@ -387,6 +387,9 @@ static void vop_enable(struct drm_crtc *crtc)
struct vop *vop = to_vop(crtc);
int ret;
+ if (vop->is_enabled)
+ return;
+
ret = clk_enable(vop->hclk);
if (ret < 0) {
dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
@@ -427,6 +430,8 @@ static void vop_enable(struct drm_crtc *crtc)
drm_vblank_on(vop->drm_dev, vop->pipe);
+ vop->is_enabled = true;
+
return;
err_disable_aclk:
@@ -441,6 +446,9 @@ static void vop_disable(struct drm_crtc *crtc)
{
struct vop *vop = to_vop(crtc);
+ if (!vop->is_enabled)
+ return;
+
drm_vblank_off(crtc->dev, vop->pipe);
disable_irq(vop->irq);
@@ -463,6 +471,8 @@ static void vop_disable(struct drm_crtc *crtc)
clk_disable(vop->aclk);
clk_disable(vop->hclk);
+
+ vop->is_enabled = false;
}
/*
@@ -742,7 +752,7 @@ static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
struct vop *vop = to_vop(crtc);
unsigned long flags;
- if (vop->dpms != DRM_MODE_DPMS_ON)
+ if (!vop->is_enabled)
return -EPERM;
spin_lock_irqsave(&vop->irq_lock, flags);
@@ -759,8 +769,9 @@ static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
struct vop *vop = to_vop(crtc);
unsigned long flags;
- if (vop->dpms != DRM_MODE_DPMS_ON)
+ if (!vop->is_enabled)
return;
+
spin_lock_irqsave(&vop->irq_lock, flags);
vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(0));
spin_unlock_irqrestore(&vop->irq_lock, flags);
@@ -773,15 +784,8 @@ static const struct rockchip_crtc_funcs private_crtc_funcs = {
static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
{
- struct vop *vop = to_vop(crtc);
-
DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
- if (vop->dpms == mode) {
- DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
- return;
- }
-
switch (mode) {
case DRM_MODE_DPMS_ON:
vop_enable(crtc);
@@ -795,8 +799,6 @@ static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
DRM_DEBUG_KMS("unspecified mode %d\n", mode);
break;
}
-
- vop->dpms = mode;
}
static void vop_crtc_prepare(struct drm_crtc *crtc)
@@ -934,9 +936,9 @@ static int vop_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *old_fb = crtc->primary->fb;
int ret;
- /* when the page flip is requested, crtc's dpms should be on */
- if (vop->dpms > DRM_MODE_DPMS_ON) {
- DRM_DEBUG("failed page flip request at dpms[%d].\n", vop->dpms);
+ /* when the page flip is requested, crtc should be on */
+ if (!vop->is_enabled) {
+ DRM_DEBUG("page flip request rejected because crtc is off.\n");
return 0;
}
@@ -1302,7 +1304,7 @@ static int vop_initial(struct vop *vop)
clk_disable(vop->hclk);
- vop->dpms = DRM_MODE_DPMS_OFF;
+ vop->is_enabled = false;
return 0;
--
1.7.9.5
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v2 1/2] drm/rockchip: vop use is_enabled instead of dpms mode
@ 2015-01-22 10:29 ` Mark Yao
0 siblings, 0 replies; 10+ messages in thread
From: Mark Yao @ 2015-01-22 10:29 UTC (permalink / raw)
To: David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel,
Daniel Kurtz, dri-devel, linux-kernel, linux-rockchip
Cc: Mark Yao
drm dpms have many power modes: ON,OFF,SUSPEND,STANDBY, etc.
but vop only have enable/disable mode, maybe case such bug:
--> DRM_DPMS_ON: power on vop
--> DRM_DPMS_SUSPEND: power off vop
--> DRM_DPMS_OFF: already power off at SUSPEND, crash
so use a bool val is more suitable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---
Changes in v2:
- fix mistake that set is_enabled wrong.
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 34 ++++++++++++++-------------
1 file changed, 18 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 9a5c571..d03eb7e 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -81,7 +81,7 @@ struct vop {
struct drm_crtc crtc;
struct device *dev;
struct drm_device *drm_dev;
- unsigned int dpms;
+ bool is_enabled;
int connector_type;
int connector_out_mode;
@@ -387,6 +387,9 @@ static void vop_enable(struct drm_crtc *crtc)
struct vop *vop = to_vop(crtc);
int ret;
+ if (vop->is_enabled)
+ return;
+
ret = clk_enable(vop->hclk);
if (ret < 0) {
dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
@@ -427,6 +430,8 @@ static void vop_enable(struct drm_crtc *crtc)
drm_vblank_on(vop->drm_dev, vop->pipe);
+ vop->is_enabled = true;
+
return;
err_disable_aclk:
@@ -441,6 +446,9 @@ static void vop_disable(struct drm_crtc *crtc)
{
struct vop *vop = to_vop(crtc);
+ if (!vop->is_enabled)
+ return;
+
drm_vblank_off(crtc->dev, vop->pipe);
disable_irq(vop->irq);
@@ -463,6 +471,8 @@ static void vop_disable(struct drm_crtc *crtc)
clk_disable(vop->aclk);
clk_disable(vop->hclk);
+
+ vop->is_enabled = false;
}
/*
@@ -742,7 +752,7 @@ static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
struct vop *vop = to_vop(crtc);
unsigned long flags;
- if (vop->dpms != DRM_MODE_DPMS_ON)
+ if (!vop->is_enabled)
return -EPERM;
spin_lock_irqsave(&vop->irq_lock, flags);
@@ -759,8 +769,9 @@ static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
struct vop *vop = to_vop(crtc);
unsigned long flags;
- if (vop->dpms != DRM_MODE_DPMS_ON)
+ if (!vop->is_enabled)
return;
+
spin_lock_irqsave(&vop->irq_lock, flags);
vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(0));
spin_unlock_irqrestore(&vop->irq_lock, flags);
@@ -773,15 +784,8 @@ static const struct rockchip_crtc_funcs private_crtc_funcs = {
static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
{
- struct vop *vop = to_vop(crtc);
-
DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
- if (vop->dpms == mode) {
- DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
- return;
- }
-
switch (mode) {
case DRM_MODE_DPMS_ON:
vop_enable(crtc);
@@ -795,8 +799,6 @@ static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
DRM_DEBUG_KMS("unspecified mode %d\n", mode);
break;
}
-
- vop->dpms = mode;
}
static void vop_crtc_prepare(struct drm_crtc *crtc)
@@ -934,9 +936,9 @@ static int vop_crtc_page_flip(struct drm_crtc *crtc,
struct drm_framebuffer *old_fb = crtc->primary->fb;
int ret;
- /* when the page flip is requested, crtc's dpms should be on */
- if (vop->dpms > DRM_MODE_DPMS_ON) {
- DRM_DEBUG("failed page flip request at dpms[%d].\n", vop->dpms);
+ /* when the page flip is requested, crtc should be on */
+ if (!vop->is_enabled) {
+ DRM_DEBUG("page flip request rejected because crtc is off.\n");
return 0;
}
@@ -1302,7 +1304,7 @@ static int vop_initial(struct vop *vop)
clk_disable(vop->hclk);
- vop->dpms = DRM_MODE_DPMS_OFF;
+ vop->is_enabled = false;
return 0;
--
1.7.9.5
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v2 1/2] drm/rockchip: vop use is_enabled instead of dpms mode
2015-01-22 10:29 ` Mark Yao
@ 2015-01-23 2:04 ` Daniel Kurtz
-1 siblings, 0 replies; 10+ messages in thread
From: Daniel Kurtz @ 2015-01-23 2:04 UTC (permalink / raw)
To: Mark Yao
Cc: linux-kernel@vger.kernel.org, dri-devel,
open list:ARM/Rockchip SoC...
On Thu, Jan 22, 2015 at 6:29 PM, Mark Yao <mark.yao@rock-chips.com> wrote:
> drm dpms have many power modes: ON,OFF,SUSPEND,STANDBY, etc.
> but vop only have enable/disable mode, maybe case such bug:
> --> DRM_DPMS_ON: power on vop
> --> DRM_DPMS_SUSPEND: power off vop
> --> DRM_DPMS_OFF: already power off at SUSPEND, crash
> so use a bool val is more suitable.
>
> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
This version looks good. Moving to atomic is definitely important,
and part of the plan.
For now, though, this series is:
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
> ---
> Changes in v2:
> - fix mistake that set is_enabled wrong.
>
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 34 ++++++++++++++-------------
> 1 file changed, 18 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 9a5c571..d03eb7e 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -81,7 +81,7 @@ struct vop {
> struct drm_crtc crtc;
> struct device *dev;
> struct drm_device *drm_dev;
> - unsigned int dpms;
> + bool is_enabled;
>
> int connector_type;
> int connector_out_mode;
> @@ -387,6 +387,9 @@ static void vop_enable(struct drm_crtc *crtc)
> struct vop *vop = to_vop(crtc);
> int ret;
>
> + if (vop->is_enabled)
> + return;
> +
> ret = clk_enable(vop->hclk);
> if (ret < 0) {
> dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
> @@ -427,6 +430,8 @@ static void vop_enable(struct drm_crtc *crtc)
>
> drm_vblank_on(vop->drm_dev, vop->pipe);
>
> + vop->is_enabled = true;
> +
> return;
>
> err_disable_aclk:
> @@ -441,6 +446,9 @@ static void vop_disable(struct drm_crtc *crtc)
> {
> struct vop *vop = to_vop(crtc);
>
> + if (!vop->is_enabled)
> + return;
> +
> drm_vblank_off(crtc->dev, vop->pipe);
>
> disable_irq(vop->irq);
> @@ -463,6 +471,8 @@ static void vop_disable(struct drm_crtc *crtc)
>
> clk_disable(vop->aclk);
> clk_disable(vop->hclk);
> +
> + vop->is_enabled = false;
> }
>
> /*
> @@ -742,7 +752,7 @@ static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
> struct vop *vop = to_vop(crtc);
> unsigned long flags;
>
> - if (vop->dpms != DRM_MODE_DPMS_ON)
> + if (!vop->is_enabled)
> return -EPERM;
>
> spin_lock_irqsave(&vop->irq_lock, flags);
> @@ -759,8 +769,9 @@ static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
> struct vop *vop = to_vop(crtc);
> unsigned long flags;
>
> - if (vop->dpms != DRM_MODE_DPMS_ON)
> + if (!vop->is_enabled)
> return;
> +
> spin_lock_irqsave(&vop->irq_lock, flags);
> vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(0));
> spin_unlock_irqrestore(&vop->irq_lock, flags);
> @@ -773,15 +784,8 @@ static const struct rockchip_crtc_funcs private_crtc_funcs = {
>
> static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
> {
> - struct vop *vop = to_vop(crtc);
> -
> DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
>
> - if (vop->dpms == mode) {
> - DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
> - return;
> - }
> -
> switch (mode) {
> case DRM_MODE_DPMS_ON:
> vop_enable(crtc);
> @@ -795,8 +799,6 @@ static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
> DRM_DEBUG_KMS("unspecified mode %d\n", mode);
> break;
> }
> -
> - vop->dpms = mode;
> }
>
> static void vop_crtc_prepare(struct drm_crtc *crtc)
> @@ -934,9 +936,9 @@ static int vop_crtc_page_flip(struct drm_crtc *crtc,
> struct drm_framebuffer *old_fb = crtc->primary->fb;
> int ret;
>
> - /* when the page flip is requested, crtc's dpms should be on */
> - if (vop->dpms > DRM_MODE_DPMS_ON) {
> - DRM_DEBUG("failed page flip request at dpms[%d].\n", vop->dpms);
> + /* when the page flip is requested, crtc should be on */
> + if (!vop->is_enabled) {
> + DRM_DEBUG("page flip request rejected because crtc is off.\n");
> return 0;
> }
>
> @@ -1302,7 +1304,7 @@ static int vop_initial(struct vop *vop)
>
> clk_disable(vop->hclk);
>
> - vop->dpms = DRM_MODE_DPMS_OFF;
> + vop->is_enabled = false;
>
> return 0;
>
> --
> 1.7.9.5
>
>
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 10+ messages in thread* Re: [PATCH v2 1/2] drm/rockchip: vop use is_enabled instead of dpms mode
@ 2015-01-23 2:04 ` Daniel Kurtz
0 siblings, 0 replies; 10+ messages in thread
From: Daniel Kurtz @ 2015-01-23 2:04 UTC (permalink / raw)
To: Mark Yao
Cc: David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel, dri-devel,
linux-kernel@vger.kernel.org, open list:ARM/Rockchip SoC...
On Thu, Jan 22, 2015 at 6:29 PM, Mark Yao <mark.yao@rock-chips.com> wrote:
> drm dpms have many power modes: ON,OFF,SUSPEND,STANDBY, etc.
> but vop only have enable/disable mode, maybe case such bug:
> --> DRM_DPMS_ON: power on vop
> --> DRM_DPMS_SUSPEND: power off vop
> --> DRM_DPMS_OFF: already power off at SUSPEND, crash
> so use a bool val is more suitable.
>
> Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
This version looks good. Moving to atomic is definitely important,
and part of the plan.
For now, though, this series is:
Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
> ---
> Changes in v2:
> - fix mistake that set is_enabled wrong.
>
> drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 34 ++++++++++++++-------------
> 1 file changed, 18 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> index 9a5c571..d03eb7e 100644
> --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
> @@ -81,7 +81,7 @@ struct vop {
> struct drm_crtc crtc;
> struct device *dev;
> struct drm_device *drm_dev;
> - unsigned int dpms;
> + bool is_enabled;
>
> int connector_type;
> int connector_out_mode;
> @@ -387,6 +387,9 @@ static void vop_enable(struct drm_crtc *crtc)
> struct vop *vop = to_vop(crtc);
> int ret;
>
> + if (vop->is_enabled)
> + return;
> +
> ret = clk_enable(vop->hclk);
> if (ret < 0) {
> dev_err(vop->dev, "failed to enable hclk - %d\n", ret);
> @@ -427,6 +430,8 @@ static void vop_enable(struct drm_crtc *crtc)
>
> drm_vblank_on(vop->drm_dev, vop->pipe);
>
> + vop->is_enabled = true;
> +
> return;
>
> err_disable_aclk:
> @@ -441,6 +446,9 @@ static void vop_disable(struct drm_crtc *crtc)
> {
> struct vop *vop = to_vop(crtc);
>
> + if (!vop->is_enabled)
> + return;
> +
> drm_vblank_off(crtc->dev, vop->pipe);
>
> disable_irq(vop->irq);
> @@ -463,6 +471,8 @@ static void vop_disable(struct drm_crtc *crtc)
>
> clk_disable(vop->aclk);
> clk_disable(vop->hclk);
> +
> + vop->is_enabled = false;
> }
>
> /*
> @@ -742,7 +752,7 @@ static int vop_crtc_enable_vblank(struct drm_crtc *crtc)
> struct vop *vop = to_vop(crtc);
> unsigned long flags;
>
> - if (vop->dpms != DRM_MODE_DPMS_ON)
> + if (!vop->is_enabled)
> return -EPERM;
>
> spin_lock_irqsave(&vop->irq_lock, flags);
> @@ -759,8 +769,9 @@ static void vop_crtc_disable_vblank(struct drm_crtc *crtc)
> struct vop *vop = to_vop(crtc);
> unsigned long flags;
>
> - if (vop->dpms != DRM_MODE_DPMS_ON)
> + if (!vop->is_enabled)
> return;
> +
> spin_lock_irqsave(&vop->irq_lock, flags);
> vop_mask_write(vop, INTR_CTRL0, FS_INTR_MASK, FS_INTR_EN(0));
> spin_unlock_irqrestore(&vop->irq_lock, flags);
> @@ -773,15 +784,8 @@ static const struct rockchip_crtc_funcs private_crtc_funcs = {
>
> static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
> {
> - struct vop *vop = to_vop(crtc);
> -
> DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
>
> - if (vop->dpms == mode) {
> - DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
> - return;
> - }
> -
> switch (mode) {
> case DRM_MODE_DPMS_ON:
> vop_enable(crtc);
> @@ -795,8 +799,6 @@ static void vop_crtc_dpms(struct drm_crtc *crtc, int mode)
> DRM_DEBUG_KMS("unspecified mode %d\n", mode);
> break;
> }
> -
> - vop->dpms = mode;
> }
>
> static void vop_crtc_prepare(struct drm_crtc *crtc)
> @@ -934,9 +936,9 @@ static int vop_crtc_page_flip(struct drm_crtc *crtc,
> struct drm_framebuffer *old_fb = crtc->primary->fb;
> int ret;
>
> - /* when the page flip is requested, crtc's dpms should be on */
> - if (vop->dpms > DRM_MODE_DPMS_ON) {
> - DRM_DEBUG("failed page flip request at dpms[%d].\n", vop->dpms);
> + /* when the page flip is requested, crtc should be on */
> + if (!vop->is_enabled) {
> + DRM_DEBUG("page flip request rejected because crtc is off.\n");
> return 0;
> }
>
> @@ -1302,7 +1304,7 @@ static int vop_initial(struct vop *vop)
>
> clk_disable(vop->hclk);
>
> - vop->dpms = DRM_MODE_DPMS_OFF;
> + vop->is_enabled = false;
>
> return 0;
>
> --
> 1.7.9.5
>
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v2 2/2] drm/rockchip: vop: set vop enabled after enable iommu
2015-01-22 10:29 ` Mark Yao
@ 2015-01-22 10:29 ` Mark Yao
-1 siblings, 0 replies; 10+ messages in thread
From: Mark Yao @ 2015-01-22 10:29 UTC (permalink / raw)
To: David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel,
Daniel Kurtz, dri-devel, linux-kernel, linux-rockchip
Cc: Mark Yao
there is a Bug that:
vop_enable()->drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
after enable vop clocks and iommu regs, we can sure that
R/W vop regs and do vop plane flip is safe, so place
is_enabled = true after enable iommu is suitable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---
Changes in v2:
- fix mistake that set is_enabled wrong.
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index d03eb7e..fb25836 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -420,6 +420,11 @@ static void vop_enable(struct drm_crtc *crtc)
goto err_disable_aclk;
}
+ /*
+ * At here, vop clock & iommu is enable, R/W vop regs would be safe.
+ */
+ vop->is_enabled = true;
+
spin_lock(&vop->reg_lock);
VOP_CTRL_SET(vop, standby, 0);
@@ -430,8 +435,6 @@ static void vop_enable(struct drm_crtc *crtc)
drm_vblank_on(vop->drm_dev, vop->pipe);
- vop->is_enabled = true;
-
return;
err_disable_aclk:
@@ -462,6 +465,8 @@ static void vop_disable(struct drm_crtc *crtc)
VOP_CTRL_SET(vop, standby, 1);
spin_unlock(&vop->reg_lock);
+
+ vop->is_enabled = false;
/*
* disable dclk to stop frame scan, so we can safely detach iommu,
*/
@@ -471,8 +476,6 @@ static void vop_disable(struct drm_crtc *crtc)
clk_disable(vop->aclk);
clk_disable(vop->hclk);
-
- vop->is_enabled = false;
}
/*
--
1.7.9.5
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^ permalink raw reply related [flat|nested] 10+ messages in thread
* [PATCH v2 2/2] drm/rockchip: vop: set vop enabled after enable iommu
@ 2015-01-22 10:29 ` Mark Yao
0 siblings, 0 replies; 10+ messages in thread
From: Mark Yao @ 2015-01-22 10:29 UTC (permalink / raw)
To: David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel,
Daniel Kurtz, dri-devel, linux-kernel, linux-rockchip
Cc: Mark Yao
there is a Bug that:
vop_enable()->drm_vblank_on, drm_vblank_on may call vop
enable vblank. if it happen, vblank enable would failed,
then cause irq status error. because is_enabled value is set
after drm_vblank_on.
after enable vop clocks and iommu regs, we can sure that
R/W vop regs and do vop plane flip is safe, so place
is_enabled = true after enable iommu is suitable.
Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
---
Changes in v2:
- fix mistake that set is_enabled wrong.
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index d03eb7e..fb25836 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -420,6 +420,11 @@ static void vop_enable(struct drm_crtc *crtc)
goto err_disable_aclk;
}
+ /*
+ * At here, vop clock & iommu is enable, R/W vop regs would be safe.
+ */
+ vop->is_enabled = true;
+
spin_lock(&vop->reg_lock);
VOP_CTRL_SET(vop, standby, 0);
@@ -430,8 +435,6 @@ static void vop_enable(struct drm_crtc *crtc)
drm_vblank_on(vop->drm_dev, vop->pipe);
- vop->is_enabled = true;
-
return;
err_disable_aclk:
@@ -462,6 +465,8 @@ static void vop_disable(struct drm_crtc *crtc)
VOP_CTRL_SET(vop, standby, 1);
spin_unlock(&vop->reg_lock);
+
+ vop->is_enabled = false;
/*
* disable dclk to stop frame scan, so we can safely detach iommu,
*/
@@ -471,8 +476,6 @@ static void vop_disable(struct drm_crtc *crtc)
clk_disable(vop->aclk);
clk_disable(vop->hclk);
-
- vop->is_enabled = false;
}
/*
--
1.7.9.5
^ permalink raw reply related [flat|nested] 10+ messages in thread
* Re: [PATCH v2 0/2] drm/rockchip: Optimization vop dpms control
2015-01-22 10:29 ` Mark Yao
@ 2015-01-24 15:14 ` Heiko Stübner
-1 siblings, 0 replies; 10+ messages in thread
From: Heiko Stübner @ 2015-01-24 15:14 UTC (permalink / raw)
To: dri-devel; +Cc: linux-kernel, linux-rockchip, Mark Yao
Am Donnerstag, 22. Januar 2015, 18:29:55 schrieb Mark Yao:
> drm dpms have many power modes, ON,OFF,SUSPEND,STANDBY, etc.
> but vop only have enable/disable mode, maybe case such bug:
> --> DRM_DPMS_ON: power on vop
> --> DRM_DPMS_SUSPEND: power off vop
> --> DRM_DPMS_OFF: already power off at SUSPEND, crash
> so use a bool val is more suitable.
>
> another problem at vop_crtc_dpms:
> vop_enable()->drm_vblank_on, drm_vblank_on may call vop
> enable vblank. if it happen, vblank enable would failed,
> then cause irq status error. because is_enabled value is set
> after drm_vblank_on.
This series, on a rk3288-firefly board with a sda7123 vga connector
Tested-by: Heiko Stuebner <heiko@sntech.de>
Heiko
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dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: [PATCH v2 0/2] drm/rockchip: Optimization vop dpms control
@ 2015-01-24 15:14 ` Heiko Stübner
0 siblings, 0 replies; 10+ messages in thread
From: Heiko Stübner @ 2015-01-24 15:14 UTC (permalink / raw)
To: dri-devel
Cc: Mark Yao, David Airlie, Daniel Vetter, Rob Clark, Philipp Zabel,
Daniel Kurtz, linux-kernel, linux-rockchip
Am Donnerstag, 22. Januar 2015, 18:29:55 schrieb Mark Yao:
> drm dpms have many power modes, ON,OFF,SUSPEND,STANDBY, etc.
> but vop only have enable/disable mode, maybe case such bug:
> --> DRM_DPMS_ON: power on vop
> --> DRM_DPMS_SUSPEND: power off vop
> --> DRM_DPMS_OFF: already power off at SUSPEND, crash
> so use a bool val is more suitable.
>
> another problem at vop_crtc_dpms:
> vop_enable()->drm_vblank_on, drm_vblank_on may call vop
> enable vblank. if it happen, vblank enable would failed,
> then cause irq status error. because is_enabled value is set
> after drm_vblank_on.
This series, on a rk3288-firefly board with a sda7123 vga connector
Tested-by: Heiko Stuebner <heiko@sntech.de>
Heiko
^ permalink raw reply [flat|nested] 10+ messages in thread