aboutsummaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorDaniel Vetter <daniel.vetter@ffwll.ch>2013-11-01 10:50:20 +0100
committerDaniel Vetter <daniel.vetter@ffwll.ch>2013-11-01 18:16:27 +0100
commit46a19188171179ba2d84e6de803ce7b1c54da474 (patch)
tree9d616d87c762c586ea7eabde04c827c331f9b196 /drivers
parent9f08ef59a6f71249de8b4e8a26c27075b9e99f9c (diff)
downloadlinaro-lsk-46a19188171179ba2d84e6de803ce7b1c54da474.tar.gz
drm/i916: add "auto" pipe CRC source
On gmch platforms the normal pipe source CRC registers don't work for DP and TV encoders. And on newer platforms the single pipe CRC has been replaced by a set of CRC at different stages in the platform. Now most of our userspace tests don't care one bit about the exact CRC, they simply want something that reflects any changes on the screen. Hence add a new auto target for platform agnostic tests to use. v2: Pass back the adjusted source so that it can be shown in debugfs. v3: I seem to be unable to get a stable CRC for DP ports. So let's just disable them for now when using the auto mode. Note that testcases need to be restructured so that they can dynamically skip connectors. They also first need to set up the desired mode configuration, since otherwise the auto mode won't do the right thing. v4: Don't leak the modeset mutex on error paths. v5: Spelling fix for the i9xx auto_source function. Cc: Damien Lespiau <damien.lespiau@intel.com> Reviewed-by: Damien Lespiau <damien.lespiau@intel.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/i915/i915_debugfs.c91
-rw-r--r--drivers/gpu/drm/i915/i915_drv.h1
2 files changed, 77 insertions, 15 deletions
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 5c45e9e598d..7c29a882717 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1936,6 +1936,7 @@ static const char * const pipe_crc_sources[] = {
"DP-B",
"DP-C",
"DP-D",
+ "auto",
};
static const char *pipe_crc_source_name(enum intel_pipe_crc_source source)
@@ -1964,10 +1965,13 @@ static int display_crc_ctl_open(struct inode *inode, struct file *file)
return single_open(file, display_crc_ctl_show, dev);
}
-static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
+static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
uint32_t *val)
{
- switch (source) {
+ if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
+ *source = INTEL_PIPE_CRC_SOURCE_PIPE;
+
+ switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_INCLUDE_BORDER_I8XX;
break;
@@ -1981,10 +1985,54 @@ static int i8xx_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
return 0;
}
-static int vlv_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
+static int i9xx_pipe_crc_auto_source(struct drm_device *dev, enum pipe pipe,
+ enum intel_pipe_crc_source *source)
+{
+ struct intel_encoder *encoder;
+ struct intel_crtc *crtc;
+ int ret = 0;
+
+ *source = INTEL_PIPE_CRC_SOURCE_PIPE;
+
+ mutex_lock(&dev->mode_config.mutex);
+ list_for_each_entry(encoder, &dev->mode_config.encoder_list,
+ base.head) {
+ if (!encoder->base.crtc)
+ continue;
+
+ crtc = to_intel_crtc(encoder->base.crtc);
+
+ if (crtc->pipe != pipe)
+ continue;
+
+ switch (encoder->type) {
+ case INTEL_OUTPUT_TVOUT:
+ *source = INTEL_PIPE_CRC_SOURCE_TV;
+ break;
+ case INTEL_OUTPUT_DISPLAYPORT:
+ case INTEL_OUTPUT_EDP:
+ /* We can't get stable CRCs for DP ports somehow. */
+ ret = -ENODEV;
+ break;
+ }
+ }
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret;
+}
+
+static int vlv_pipe_crc_ctl_reg(struct drm_device *dev,
+ enum pipe pipe,
+ enum intel_pipe_crc_source *source,
uint32_t *val)
{
- switch (source) {
+ if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
+ int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
+ if (ret)
+ return ret;
+ }
+
+ switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_VLV;
break;
@@ -2005,10 +2053,17 @@ static int vlv_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
}
static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
- enum intel_pipe_crc_source source,
+ enum pipe pipe,
+ enum intel_pipe_crc_source *source,
uint32_t *val)
{
- switch (source) {
+ if (*source == INTEL_PIPE_CRC_SOURCE_AUTO) {
+ int ret = i9xx_pipe_crc_auto_source(dev, pipe, source);
+ if (ret)
+ return ret;
+ }
+
+ switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PIPE:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_I9XX;
break;
@@ -2042,10 +2097,13 @@ static int i9xx_pipe_crc_ctl_reg(struct drm_device *dev,
return 0;
}
-static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
+static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
uint32_t *val)
{
- switch (source) {
+ if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
+ *source = INTEL_PIPE_CRC_SOURCE_PIPE;
+
+ switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PLANE1:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK;
break;
@@ -2065,10 +2123,13 @@ static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
return 0;
}
-static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source source,
+static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source *source,
uint32_t *val)
{
- switch (source) {
+ if (*source == INTEL_PIPE_CRC_SOURCE_AUTO)
+ *source = INTEL_PIPE_CRC_SOURCE_PF;
+
+ switch (*source) {
case INTEL_PIPE_CRC_SOURCE_PLANE1:
*val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB;
break;
@@ -2104,15 +2165,15 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
return -EINVAL;
if (IS_GEN2(dev))
- ret = i8xx_pipe_crc_ctl_reg(source, &val);
+ ret = i8xx_pipe_crc_ctl_reg(&source, &val);
else if (INTEL_INFO(dev)->gen < 5)
- ret = i9xx_pipe_crc_ctl_reg(dev, source, &val);
+ ret = i9xx_pipe_crc_ctl_reg(dev, pipe, &source, &val);
else if (IS_VALLEYVIEW(dev))
- ret = vlv_pipe_crc_ctl_reg(source, &val);
+ ret = vlv_pipe_crc_ctl_reg(dev,pipe, &source, &val);
else if (IS_GEN5(dev) || IS_GEN6(dev))
- ret = ilk_pipe_crc_ctl_reg(source, &val);
+ ret = ilk_pipe_crc_ctl_reg(&source, &val);
else
- ret = ivb_pipe_crc_ctl_reg(source, &val);
+ ret = ivb_pipe_crc_ctl_reg(&source, &val);
if (ret != 0)
return ret;
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 0a886fd2493..f2324bc4680 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1251,6 +1251,7 @@ enum intel_pipe_crc_source {
INTEL_PIPE_CRC_SOURCE_DP_B,
INTEL_PIPE_CRC_SOURCE_DP_C,
INTEL_PIPE_CRC_SOURCE_DP_D,
+ INTEL_PIPE_CRC_SOURCE_AUTO,
INTEL_PIPE_CRC_SOURCE_MAX,
};