From: Daniel Vetter Date: Wed, 16 Oct 2013 20:55:48 +0000 (+0200) Subject: drm/i915: wire up CRC interrupt for ilk/snb X-Git-Tag: v4.9.8~7008^2~90^2~127 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=5b3a856bcfa3d24496035a77ab086548773a633d;p=platform%2Fkernel%2Flinux-rpi3.git drm/i915: wire up CRC interrupt for ilk/snb We enable the interrupt unconditionally and only control it through the enable bit in the CRC control register. v2: Extract per-platform helpers to compute the register values. Reviewed-by: Damien Lespiau Signed-off-by: Daniel Vetter --- diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 7811bf4..baa5272 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -1914,6 +1914,7 @@ static const char * const pipe_crc_sources[] = { "plane1", "plane2", "pf", + "pipe", }; static const char *pipe_crc_source_name(enum intel_pipe_crc_source source) @@ -1942,14 +1943,61 @@ static int display_crc_ctl_open(struct inode *inode, struct file *file) return single_open(file, display_crc_ctl_show, dev); } +static int ilk_pipe_crc_ctl_reg(enum intel_pipe_crc_source source, + uint32_t *val) +{ + switch (source) { + case INTEL_PIPE_CRC_SOURCE_PLANE1: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_ILK; + break; + case INTEL_PIPE_CRC_SOURCE_PLANE2: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_ILK; + break; + case INTEL_PIPE_CRC_SOURCE_PF: + return -EINVAL; + case INTEL_PIPE_CRC_SOURCE_PIPE: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PIPE_ILK; + break; + default: + *val = 0; + break; + } + + return 0; +} + +static int ivb_pipe_crc_ctl_reg(enum intel_pipe_crc_source source, + uint32_t *val) +{ + switch (source) { + case INTEL_PIPE_CRC_SOURCE_PLANE1: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB; + break; + case INTEL_PIPE_CRC_SOURCE_PLANE2: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB; + break; + case INTEL_PIPE_CRC_SOURCE_PF: + *val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB; + break; + case INTEL_PIPE_CRC_SOURCE_PIPE: + return -EINVAL; + default: + *val = 0; + break; + } + + return 0; +} + static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, enum intel_pipe_crc_source source) { struct drm_i915_private *dev_priv = dev->dev_private; struct intel_pipe_crc *pipe_crc = &dev_priv->pipe_crc[pipe]; u32 val; + int ret; - if (!IS_IVYBRIDGE(dev)) + if (!(IS_IVYBRIDGE(dev) || IS_GEN5(dev) || IS_GEN6(dev))) return -ENODEV; if (pipe_crc->source == source) @@ -1959,6 +2007,14 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, if (pipe_crc->source && source) return -EINVAL; + if (IS_GEN5(dev) || IS_GEN6(dev)) + ret = ilk_pipe_crc_ctl_reg(source, &val); + else + ret = ivb_pipe_crc_ctl_reg(source, &val); + + if (ret != 0) + return ret; + /* none -> real source transition */ if (source) { DRM_DEBUG_DRIVER("collecting CRCs for pipe %c, %s\n", @@ -1976,22 +2032,6 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe, pipe_crc->source = source; - switch (source) { - case INTEL_PIPE_CRC_SOURCE_PLANE1: - val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PRIMARY_IVB; - break; - case INTEL_PIPE_CRC_SOURCE_PLANE2: - val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_SPRITE_IVB; - break; - case INTEL_PIPE_CRC_SOURCE_PF: - val = PIPE_CRC_ENABLE | PIPE_CRC_SOURCE_PF_IVB; - break; - case INTEL_PIPE_CRC_SOURCE_NONE: - default: - val = 0; - break; - } - I915_WRITE(PIPE_CRC_CTL(pipe), val); POSTING_READ(PIPE_CRC_CTL(pipe)); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 1292b40..2ea33ee 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -1223,6 +1223,7 @@ enum intel_pipe_crc_source { INTEL_PIPE_CRC_SOURCE_PLANE1, INTEL_PIPE_CRC_SOURCE_PLANE2, INTEL_PIPE_CRC_SOURCE_PF, + INTEL_PIPE_CRC_SOURCE_PIPE, INTEL_PIPE_CRC_SOURCE_MAX, }; diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index df031bb..36465ef 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1240,8 +1240,22 @@ static void ivb_pipe_crc_update(struct drm_device *dev, enum pipe pipe) I915_READ(PIPE_CRC_RES_5_IVB(pipe)), I915_READ(PIPEFRAME(pipe))); } + +static void ilk_pipe_crc_update(struct drm_device *dev, enum pipe pipe) +{ + struct drm_i915_private *dev_priv = dev->dev_private; + + display_pipe_crc_update(dev, pipe, + I915_READ(PIPE_CRC_RES_RED_ILK(pipe)), + I915_READ(PIPE_CRC_RES_GREEN_ILK(pipe)), + I915_READ(PIPE_CRC_RES_BLUE_ILK(pipe)), + I915_READ(PIPE_CRC_RES_RES1_ILK(pipe)), + I915_READ(PIPE_CRC_RES_RES2_ILK(pipe)), + I915_READ(PIPEFRAME(pipe))); +} #else static inline void ivb_pipe_crc_update(struct drm_device *dev, int pipe) {} +static inline void ilk_pipe_crc_update(struct drm_device *dev, int pipe) {} #endif /* The RPS events need forcewake, so we add them to a work queue and mask their @@ -1524,6 +1538,12 @@ static void ilk_display_irq_handler(struct drm_device *dev, u32 de_iir) if (intel_set_cpu_fifo_underrun_reporting(dev, PIPE_B, false)) DRM_DEBUG_DRIVER("Pipe B FIFO underrun\n"); + if (de_iir & DE_PIPEA_CRC_DONE) + ilk_pipe_crc_update(dev, PIPE_A); + + if (de_iir & DE_PIPEB_CRC_DONE) + ilk_pipe_crc_update(dev, PIPE_B); + if (de_iir & DE_PLANEA_FLIP_DONE) { intel_prepare_page_flip(dev, 0); intel_finish_page_flip_plane(dev, 0); @@ -2500,8 +2520,10 @@ static int ironlake_irq_postinstall(struct drm_device *dev) } else { display_mask = (DE_MASTER_IRQ_CONTROL | DE_GSE | DE_PCH_EVENT | DE_PLANEA_FLIP_DONE | DE_PLANEB_FLIP_DONE | - DE_AUX_CHANNEL_A | DE_PIPEB_FIFO_UNDERRUN | - DE_PIPEA_FIFO_UNDERRUN | DE_POISON); + DE_AUX_CHANNEL_A | + DE_PIPEB_FIFO_UNDERRUN | DE_PIPEA_FIFO_UNDERRUN | + DE_PIPEB_CRC_DONE | DE_PIPEA_CRC_DONE | + DE_POISON); extra_mask = DE_PIPEA_VBLANK | DE_PIPEB_VBLANK | DE_PCU_EVENT; } diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 11bd8b2..8b1f2db 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3918,12 +3918,14 @@ #define DE_PIPEB_ODD_FIELD (1 << 13) #define DE_PIPEB_LINE_COMPARE (1 << 12) #define DE_PIPEB_VSYNC (1 << 11) +#define DE_PIPEB_CRC_DONE (1 << 10) #define DE_PIPEB_FIFO_UNDERRUN (1 << 8) #define DE_PIPEA_VBLANK (1 << 7) #define DE_PIPEA_EVEN_FIELD (1 << 6) #define DE_PIPEA_ODD_FIELD (1 << 5) #define DE_PIPEA_LINE_COMPARE (1 << 4) #define DE_PIPEA_VSYNC (1 << 3) +#define DE_PIPEA_CRC_DONE (1 << 2) #define DE_PIPEA_FIFO_UNDERRUN (1 << 0) /* More Ivybridge lolz */