[Intel-gfx] [PATCH v3 00/11] Initial Meteorlake Support

[Intel-gfx] [PATCH v3 00/11] Initial Meteorlake Support

[Radhakrishna Sripada]

The PCI Id's and platform definition are posted earlier.
This series adds handful of early enablement patches including
support for display power wells, VBT and AUX Channel mapping,
PCH and gmbus support, dbus, mbus, sagv and memory bandwidth support.

This series also add the support for a new way to read Graphics,
Media and Display versions

This is based out of the earlier series posted at [1]. Several
of the patches from the earlier series got merged. This version is
rebased on top of the earlier patches that got merged.

[1] https://patchwork.freedesktop.org/series/106786/

Imre Deak (2):
  drm/i915/mtl: Add display power wells
  drm/i915/mtl: Add DP AUX support on TypeC ports

José Roberto de Souza (1):
  drm/i915: Parse and set stepping for platforms with GMD

Madhumitha Tolakanahalli Pradeep (1):
  drm/i915/mtl: Update CHICKEN_TRANS* register addresses

Matt Roper (2):
  drm/i915: Read graphics/media/display arch version from hw
  drm/i915/mtl: Define engine context layouts

Radhakrishna Sripada (5):
  drm/i915: Move display and media IP version to runtime info
  drm/i915/mtl: Add gmbus and gpio support
  drm/i915/mtl: Obtain SAGV values from MMIO instead of GT pcode mailbox
  drm/i915/mtl: Update MBUS_DBOX credits
  drm/i915/mtl: Do not update GV point, mask value

 drivers/gpu/drm/i915/display/intel_bw.c       |  42 ++++++-
 drivers/gpu/drm/i915/display/intel_display.c  |  14 ++-
 .../i915/display/intel_display_power_map.c    | 115 +++++++++++++++++-
 .../i915/display/intel_display_power_well.c   |  44 +++++++
 .../i915/display/intel_display_power_well.h   |   4 +
 drivers/gpu/drm/i915/display/intel_dp_aux.c   |  53 +++++++-
 drivers/gpu/drm/i915/display/intel_dp_mst.c   |   5 +-
 drivers/gpu/drm/i915/display/intel_gmbus.c    |  15 +++
 drivers/gpu/drm/i915/display/intel_gmbus.h    |   1 +
 drivers/gpu/drm/i915/display/intel_psr.c      |   6 +-
 drivers/gpu/drm/i915/gt/intel_gt_regs.h       |   2 +
 drivers/gpu/drm/i915/gt/intel_lrc.c           |  81 +++++++++++-
 drivers/gpu/drm/i915/i915_driver.c            |   2 +
 drivers/gpu/drm/i915/i915_drv.h               |  10 +-
 drivers/gpu/drm/i915/i915_pci.c               |  21 ++--
 drivers/gpu/drm/i915/i915_reg.h               |  83 ++++++++++++-
 drivers/gpu/drm/i915/intel_device_info.c      |  85 ++++++++++++-
 drivers/gpu/drm/i915/intel_device_info.h      |  18 ++-
 drivers/gpu/drm/i915/intel_dram.c             |  41 ++++++-
 drivers/gpu/drm/i915/intel_pm.c               |  73 ++++++++++-
 drivers/gpu/drm/i915/intel_step.c             |  60 +++++++++
 21 files changed, 723 insertions(+), 52 deletions(-)

-- 
2.25.1

[Intel-gfx] [PATCH v3 01/11] drm/i915: Move display and media IP version to runtime info

[Radhakrishna Sripada]

Future platforms can read the IP version from a register and the
IP version numbers need not be hard coded in device info. Move the
ip version for media and display to runtime info.

On platforms where hard coding of IP version is required, update
the IP version in __runtime under device_info.

Suggested-by: Jani Nikula <jani.nikula@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/i915_drv.h          |  8 ++++----
 drivers/gpu/drm/i915/i915_pci.c          | 20 ++++++++++----------
 drivers/gpu/drm/i915/intel_device_info.c | 12 ++++++------
 drivers/gpu/drm/i915/intel_device_info.h | 15 ++++++++++-----
 4 files changed, 30 insertions(+), 25 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index c9cca165bf5d..bf60593a4ce5 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -475,13 +475,13 @@ static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
 #define IS_GRAPHICS_VER(i915, from, until) \
 	(GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
 
-#define MEDIA_VER(i915)			(INTEL_INFO(i915)->media.ver)
-#define MEDIA_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->media.ver, \
-					       INTEL_INFO(i915)->media.rel)
+#define MEDIA_VER(i915)			(RUNTIME_INFO(i915)->media.ver)
+#define MEDIA_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->media.ver, \
+					       RUNTIME_INFO(i915)->media.rel)
 #define IS_MEDIA_VER(i915, from, until) \
 	(MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
 
-#define DISPLAY_VER(i915)	(INTEL_INFO(i915)->display.ver)
+#define DISPLAY_VER(i915)	(RUNTIME_INFO(i915)->display.ver)
 #define IS_DISPLAY_VER(i915, from, until) \
 	(DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
 
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 26b25d9434d6..72577e327c71 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -35,8 +35,8 @@
 #define PLATFORM(x) .platform = (x)
 #define GEN(x) \
 	.__runtime.graphics.ver = (x), \
-	.media.ver = (x), \
-	.display.ver = (x)
+	.__runtime.media.ver = (x), \
+	.__runtime.display.ver = (x)
 
 #define I845_PIPE_OFFSETS \
 	.display.pipe_offsets = { \
@@ -740,7 +740,7 @@ static const struct intel_device_info bxt_info = {
 static const struct intel_device_info glk_info = {
 	GEN9_LP_FEATURES,
 	PLATFORM(INTEL_GEMINILAKE),
-	.display.ver = 10,
+	.__runtime.display.ver = 10,
 	.display.dbuf.size = 1024 - 4, /* 4 blocks for bypass path allocation */
 	GLK_COLORS,
 };
@@ -962,7 +962,7 @@ static const struct intel_device_info adl_s_info = {
 	.display.has_hotplug = 1,						\
 	.display.has_ipc = 1,							\
 	.display.has_psr = 1,							\
-	.display.ver = 13,							\
+	.__runtime.display.ver = 13,							\
 	.__runtime.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),	\
 	.display.pipe_offsets = {						\
 		[TRANSCODER_A] = PIPE_A_OFFSET,					\
@@ -1027,8 +1027,8 @@ static const struct intel_device_info adl_p_info = {
 	.__runtime.ppgtt_type = INTEL_PPGTT_FULL
 
 #define XE_HPM_FEATURES \
-	.media.ver = 12, \
-	.media.rel = 50
+	.__runtime.media.ver = 12, \
+	.__runtime.media.rel = 50
 
 __maybe_unused
 static const struct intel_device_info xehpsdv_info = {
@@ -1054,7 +1054,7 @@ static const struct intel_device_info xehpsdv_info = {
 	XE_HPM_FEATURES, \
 	DGFX_FEATURES, \
 	.__runtime.graphics.rel = 55, \
-	.media.rel = 55, \
+	.__runtime.media.rel = 55, \
 	PLATFORM(INTEL_DG2), \
 	.has_4tile = 1, \
 	.has_64k_pages = 1, \
@@ -1098,7 +1098,7 @@ static const struct intel_device_info pvc_info = {
 	XE_HPM_FEATURES,
 	DGFX_FEATURES,
 	.__runtime.graphics.rel = 60,
-	.media.rel = 60,
+	.__runtime.media.rel = 60,
 	PLATFORM(INTEL_PONTEVECCHIO),
 	.display = { 0 },
 	.has_flat_ccs = 0,
@@ -1111,7 +1111,7 @@ static const struct intel_device_info pvc_info = {
 
 #define XE_LPDP_FEATURES	\
 	XE_LPD_FEATURES,	\
-	.display.ver = 14,	\
+	.__runtime.display.ver = 14,	\
 	.display.has_cdclk_crawl = 1, \
 	.__runtime.fbc_mask = BIT(INTEL_FBC_A) | BIT(INTEL_FBC_B)
 
@@ -1125,7 +1125,7 @@ static const struct intel_device_info mtl_info = {
 	 */
 	.__runtime.graphics.ver = 12,
 	.__runtime.graphics.rel = 70,
-	.media.ver = 13,
+	.__runtime.media.ver = 13,
 	PLATFORM(INTEL_METEORLAKE),
 	.display.has_modular_fia = 1,
 	.has_flat_ccs = 0,
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 0a1f97b35f2b..8ff66b4e11c1 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -98,15 +98,15 @@ void intel_device_info_print(const struct intel_device_info *info,
 	else
 		drm_printf(p, "graphics version: %u\n", runtime->graphics.ver);
 
-	if (info->media.rel)
-		drm_printf(p, "media version: %u.%02u\n", info->media.ver, info->media.rel);
+	if (runtime->media.rel)
+		drm_printf(p, "media version: %u.%02u\n", runtime->media.ver, runtime->media.rel);
 	else
-		drm_printf(p, "media version: %u\n", info->media.ver);
+		drm_printf(p, "media version: %u\n", runtime->media.ver);
 
-	if (info->display.rel)
-		drm_printf(p, "display version: %u.%02u\n", info->display.ver, info->display.rel);
+	if (runtime->display.rel)
+		drm_printf(p, "display version: %u.%02u\n", runtime->display.ver, runtime->display.rel);
 	else
-		drm_printf(p, "display version: %u\n", info->display.ver);
+		drm_printf(p, "display version: %u\n", runtime->display.ver);
 
 	drm_printf(p, "gt: %d\n", info->gt);
 	drm_printf(p, "memory-regions: %x\n", runtime->memory_regions);
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 6904ad03ca19..6511b25277dc 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -200,7 +200,17 @@ struct ip_version {
 };
 
 struct intel_runtime_info {
+	/*
+	 * On modern platforms, the architecture major.minor version numbers
+	 * and stepping are read directly from the hardware rather than derived
+	 * from the PCI device and revision ID's.
+	 *
+	 * Note that the hardware gives us a single "graphics" number that
+	 * should represent render, compute, and copy behavior.
+	 */
 	struct ip_version graphics;
+	struct ip_version media;
+	struct ip_version display;
 
 	/*
 	 * Platform mask is used for optimizing or-ed IS_PLATFORM calls into
@@ -246,8 +256,6 @@ struct intel_runtime_info {
 };
 
 struct intel_device_info {
-	struct ip_version media;
-
 	enum intel_platform platform;
 
 	unsigned int dma_mask_size; /* available DMA address bits */
@@ -259,9 +267,6 @@ struct intel_device_info {
 #undef DEFINE_FLAG
 
 	struct {
-		u8 ver;
-		u8 rel;
-
 		u8 abox_mask;
 
 		struct {
-- 
2.25.1

Re: [Intel-gfx] [PATCH v3 01/11] drm/i915: Move display and media IP version to runtime info

[Jani Nikula]

On Wed, 31 Aug 2022, Radhakrishna Sripada <radhakrishna.sripada@intel.com> wrote:
> Future platforms can read the IP version from a register and the
> IP version numbers need not be hard coded in device info. Move the
> ip version for media and display to runtime info.
>
> On platforms where hard coding of IP version is required, update
> the IP version in __runtime under device_info.
>
> Suggested-by: Jani Nikula <jani.nikula@intel.com>
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
> ---
>  drivers/gpu/drm/i915/i915_drv.h          |  8 ++++----
>  drivers/gpu/drm/i915/i915_pci.c          | 20 ++++++++++----------
>  drivers/gpu/drm/i915/intel_device_info.c | 12 ++++++------
>  drivers/gpu/drm/i915/intel_device_info.h | 15 ++++++++++-----
>  4 files changed, 30 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index c9cca165bf5d..bf60593a4ce5 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -475,13 +475,13 @@ static inline struct intel_gt *to_gt(struct drm_i915_private *i915)
>  #define IS_GRAPHICS_VER(i915, from, until) \
>  	(GRAPHICS_VER(i915) >= (from) && GRAPHICS_VER(i915) <= (until))
>  
> -#define MEDIA_VER(i915)			(INTEL_INFO(i915)->media.ver)
> -#define MEDIA_VER_FULL(i915)		IP_VER(INTEL_INFO(i915)->media.ver, \
> -					       INTEL_INFO(i915)->media.rel)
> +#define MEDIA_VER(i915)			(RUNTIME_INFO(i915)->media.ver)
> +#define MEDIA_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->media.ver, \
> +					       RUNTIME_INFO(i915)->media.rel)
>  #define IS_MEDIA_VER(i915, from, until) \
>  	(MEDIA_VER(i915) >= (from) && MEDIA_VER(i915) <= (until))
>  
> -#define DISPLAY_VER(i915)	(INTEL_INFO(i915)->display.ver)
> +#define DISPLAY_VER(i915)	(RUNTIME_INFO(i915)->display.ver)
>  #define IS_DISPLAY_VER(i915, from, until) \
>  	(DISPLAY_VER(i915) >= (from) && DISPLAY_VER(i915) <= (until))
>  
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index 26b25d9434d6..72577e327c71 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -35,8 +35,8 @@
>  #define PLATFORM(x) .platform = (x)
>  #define GEN(x) \
>  	.__runtime.graphics.ver = (x), \
> -	.media.ver = (x), \
> -	.display.ver = (x)
> +	.__runtime.media.ver = (x), \
> +	.__runtime.display.ver = (x)
>  
>  #define I845_PIPE_OFFSETS \
>  	.display.pipe_offsets = { \
> @@ -740,7 +740,7 @@ static const struct intel_device_info bxt_info = {
>  static const struct intel_device_info glk_info = {
>  	GEN9_LP_FEATURES,
>  	PLATFORM(INTEL_GEMINILAKE),
> -	.display.ver = 10,
> +	.__runtime.display.ver = 10,
>  	.display.dbuf.size = 1024 - 4, /* 4 blocks for bypass path allocation */
>  	GLK_COLORS,
>  };
> @@ -962,7 +962,7 @@ static const struct intel_device_info adl_s_info = {
>  	.display.has_hotplug = 1,						\
>  	.display.has_ipc = 1,							\
>  	.display.has_psr = 1,							\
> -	.display.ver = 13,							\
> +	.__runtime.display.ver = 13,							\
>  	.__runtime.pipe_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D),	\
>  	.display.pipe_offsets = {						\
>  		[TRANSCODER_A] = PIPE_A_OFFSET,					\
> @@ -1027,8 +1027,8 @@ static const struct intel_device_info adl_p_info = {
>  	.__runtime.ppgtt_type = INTEL_PPGTT_FULL
>  
>  #define XE_HPM_FEATURES \
> -	.media.ver = 12, \
> -	.media.rel = 50
> +	.__runtime.media.ver = 12, \
> +	.__runtime.media.rel = 50
>  
>  __maybe_unused
>  static const struct intel_device_info xehpsdv_info = {
> @@ -1054,7 +1054,7 @@ static const struct intel_device_info xehpsdv_info = {
>  	XE_HPM_FEATURES, \
>  	DGFX_FEATURES, \
>  	.__runtime.graphics.rel = 55, \
> -	.media.rel = 55, \
> +	.__runtime.media.rel = 55, \
>  	PLATFORM(INTEL_DG2), \
>  	.has_4tile = 1, \
>  	.has_64k_pages = 1, \
> @@ -1098,7 +1098,7 @@ static const struct intel_device_info pvc_info = {
>  	XE_HPM_FEATURES,
>  	DGFX_FEATURES,
>  	.__runtime.graphics.rel = 60,
> -	.media.rel = 60,
> +	.__runtime.media.rel = 60,
>  	PLATFORM(INTEL_PONTEVECCHIO),
>  	.display = { 0 },
>  	.has_flat_ccs = 0,
> @@ -1111,7 +1111,7 @@ static const struct intel_device_info pvc_info = {
>  
>  #define XE_LPDP_FEATURES	\
>  	XE_LPD_FEATURES,	\
> -	.display.ver = 14,	\
> +	.__runtime.display.ver = 14,	\
>  	.display.has_cdclk_crawl = 1, \
>  	.__runtime.fbc_mask = BIT(INTEL_FBC_A) | BIT(INTEL_FBC_B)
>  
> @@ -1125,7 +1125,7 @@ static const struct intel_device_info mtl_info = {
>  	 */
>  	.__runtime.graphics.ver = 12,
>  	.__runtime.graphics.rel = 70,
> -	.media.ver = 13,
> +	.__runtime.media.ver = 13,
>  	PLATFORM(INTEL_METEORLAKE),
>  	.display.has_modular_fia = 1,
>  	.has_flat_ccs = 0,
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
> index 0a1f97b35f2b..8ff66b4e11c1 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -98,15 +98,15 @@ void intel_device_info_print(const struct intel_device_info *info,
>  	else
>  		drm_printf(p, "graphics version: %u\n", runtime->graphics.ver);
>  
> -	if (info->media.rel)
> -		drm_printf(p, "media version: %u.%02u\n", info->media.ver, info->media.rel);
> +	if (runtime->media.rel)
> +		drm_printf(p, "media version: %u.%02u\n", runtime->media.ver, runtime->media.rel);
>  	else
> -		drm_printf(p, "media version: %u\n", info->media.ver);
> +		drm_printf(p, "media version: %u\n", runtime->media.ver);
>  
> -	if (info->display.rel)
> -		drm_printf(p, "display version: %u.%02u\n", info->display.ver, info->display.rel);
> +	if (runtime->display.rel)
> +		drm_printf(p, "display version: %u.%02u\n", runtime->display.ver, runtime->display.rel);
>  	else
> -		drm_printf(p, "display version: %u\n", info->display.ver);
> +		drm_printf(p, "display version: %u\n", runtime->display.ver);
>  
>  	drm_printf(p, "gt: %d\n", info->gt);
>  	drm_printf(p, "memory-regions: %x\n", runtime->memory_regions);
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index 6904ad03ca19..6511b25277dc 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -200,7 +200,17 @@ struct ip_version {
>  };
>  
>  struct intel_runtime_info {
> +	/*
> +	 * On modern platforms, the architecture major.minor version numbers
> +	 * and stepping are read directly from the hardware rather than derived
> +	 * from the PCI device and revision ID's.
> +	 *
> +	 * Note that the hardware gives us a single "graphics" number that
> +	 * should represent render, compute, and copy behavior.
> +	 */

The comment really belongs in the next patch.

>  	struct ip_version graphics;
> +	struct ip_version media;
> +	struct ip_version display;

The runtime display info is now in an unnamed struct under struct
intel_runtime_info below, and this belongs there.

There's also some pressure to name it, and "display" would be the name,
so this would collide.

Seems like all of the above are overly generic names, including the
pre-existing "graphics". Something to consider.

Otherwise, LGTM.

BR,
Jani.



>  
>  	/*
>  	 * Platform mask is used for optimizing or-ed IS_PLATFORM calls into
> @@ -246,8 +256,6 @@ struct intel_runtime_info {
>  };
>  
>  struct intel_device_info {
> -	struct ip_version media;
> -
>  	enum intel_platform platform;
>  
>  	unsigned int dma_mask_size; /* available DMA address bits */
> @@ -259,9 +267,6 @@ struct intel_device_info {
>  #undef DEFINE_FLAG
>  
>  	struct {
> -		u8 ver;
> -		u8 rel;
> -
>  		u8 abox_mask;
>  
>  		struct {

-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH v3 01/11] drm/i915: Move display and media IP version to runtime info

[Michal Wajdeczko]

On 01.09.2022 09:45, Jani Nikula wrote:
> On Wed, 31 Aug 2022, Radhakrishna Sripada <radhakrishna.sripada@intel.com> wrote:

...

>>  	struct ip_version graphics;
>> +	struct ip_version media;
>> +	struct ip_version display;
> 
> The runtime display info is now in an unnamed struct under struct
> intel_runtime_info below, and this belongs there.
> 
> There's also some pressure to name it, and "display" would be the name,
> so this would collide.
> 
> Seems like all of the above are overly generic names, including the
> pre-existing "graphics". Something to consider.

maybe

struct {
	struct {
		struct ip_version version;
		...
	} graphics;

	struct {
		struct ip_version version;
		...
	} media;

	struct {
		struct ip_version version;
		...
	} display;
} runtime;

then

drm_printf(p, "display version: %u.%02u\n",
	runtime->display.version.ver,
	runtime->display.version.rel);
...

Michal

Re: [Intel-gfx] [PATCH v3 01/11] drm/i915: Move display and media IP version to runtime info

[Jani Nikula]

On Thu, 01 Sep 2022, Michal Wajdeczko <michal.wajdeczko@intel.com> wrote:
> On 01.09.2022 09:45, Jani Nikula wrote:
>> On Wed, 31 Aug 2022, Radhakrishna Sripada <radhakrishna.sripada@intel.com> wrote:
>
> ...
>
>>>  	struct ip_version graphics;
>>> +	struct ip_version media;
>>> +	struct ip_version display;
>> 
>> The runtime display info is now in an unnamed struct under struct
>> intel_runtime_info below, and this belongs there.
>> 
>> There's also some pressure to name it, and "display" would be the name,
>> so this would collide.
>> 
>> Seems like all of the above are overly generic names, including the
>> pre-existing "graphics". Something to consider.
>
> maybe
>
> struct {
> 	struct {
> 		struct ip_version version;
> 		...
> 	} graphics;
>
> 	struct {
> 		struct ip_version version;
> 		...
> 	} media;
>
> 	struct {
> 		struct ip_version version;
> 		...
> 	} display;
> } runtime;
>
> then
>
> drm_printf(p, "display version: %u.%02u\n",
> 	runtime->display.version.ver,
> 	runtime->display.version.rel);

Looks good to me. The other display related stuff can be moved later.

BR,
Jani.



-- 
Jani Nikula, Intel Open Source Graphics Center

[Intel-gfx] [PATCH v3 02/11] drm/i915: Read graphics/media/display arch version from hw

[Radhakrishna Sripada]

From: Matt Roper <matthew.d.roper@intel.com>

Going forward, the hardware teams no longer consider new platforms to
have a "generation" in the way we've defined it for past platforms.
Instead, each IP block (graphics, media, display) will have their own
architecture major.minor versions and stepping ID's which should be read
directly from a register in the MMIO space.  New hardware programming
styles, features, and workarounds should be conditional solely on the
architecture version, and should no longer be derived from the PCI
device ID, revision ID, or platform-specific feature flags.

Bspec: 63361, 64111

v2:
  - Move the IP version readout to intel_device_info.c
  - Convert the macro into a function

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_gt_regs.h  |  2 +
 drivers/gpu/drm/i915/i915_driver.c       |  2 +
 drivers/gpu/drm/i915/i915_drv.h          |  2 +
 drivers/gpu/drm/i915/i915_pci.c          |  1 +
 drivers/gpu/drm/i915/i915_reg.h          |  6 ++
 drivers/gpu/drm/i915/intel_device_info.c | 73 ++++++++++++++++++++++++
 drivers/gpu/drm/i915/intel_device_info.h |  3 +
 7 files changed, 89 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
index d414785003cc..579da62158c4 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
+++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
@@ -39,6 +39,8 @@
 #define FORCEWAKE_ACK_RENDER_GEN9		_MMIO(0xd84)
 #define FORCEWAKE_ACK_MEDIA_GEN9		_MMIO(0xd88)
 
+#define GMD_ID_GRAPHICS				_MMIO(0xd8c)
+
 #define MCFG_MCR_SELECTOR			_MMIO(0xfd0)
 #define SF_MCR_SELECTOR				_MMIO(0xfd8)
 #define GEN8_MCR_SELECTOR			_MMIO(0xfdc)
diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
index 3aedc33ded57..5826c70d6fa5 100644
--- a/drivers/gpu/drm/i915/i915_driver.c
+++ b/drivers/gpu/drm/i915/i915_driver.c
@@ -323,6 +323,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
 	if (i915_inject_probe_failure(dev_priv))
 		return -ENODEV;
 
+	intel_device_info_runtime_init_early(dev_priv);
+
 	intel_device_info_subplatform_init(dev_priv);
 	intel_step_init(dev_priv);
 
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index bf60593a4ce5..935ff3486fef 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -936,6 +936,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 
 #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
 
+#define HAS_GMD_ID(i915)	INTEL_INFO(i915)->has_gmd_id
+
 #define HAS_LSPCON(dev_priv) (IS_DISPLAY_VER(dev_priv, 9, 10))
 
 #define HAS_L3_CCS_READ(i915) (INTEL_INFO(i915)->has_l3_ccs_read)
diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
index 72577e327c71..9772c315185d 100644
--- a/drivers/gpu/drm/i915/i915_pci.c
+++ b/drivers/gpu/drm/i915/i915_pci.c
@@ -1129,6 +1129,7 @@ static const struct intel_device_info mtl_info = {
 	PLATFORM(INTEL_METEORLAKE),
 	.display.has_modular_fia = 1,
 	.has_flat_ccs = 0,
+	.has_gmd_id = 1,
 	.has_snoop = 1,
 	.__runtime.memory_regions = REGION_SMEM | REGION_STOLEN_LMEM,
 	.__runtime.platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(CCS0),
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 5e6239864c35..f52ed6d00030 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5798,6 +5798,11 @@
 #define ICL_DSSM_CDCLK_PLL_REFCLK_19_2MHz	(1 << 29)
 #define ICL_DSSM_CDCLK_PLL_REFCLK_38_4MHz	(2 << 29)
 
+#define GMD_ID_DISPLAY				_MMIO(0x510a0)
+#define   GMD_ID_ARCH_MASK			REG_GENMASK(31, 22)
+#define   GMD_ID_RELEASE_MASK			REG_GENMASK(21, 14)
+#define   GMD_ID_STEP				REG_GENMASK(5, 0)
+
 /*GEN11 chicken */
 #define _PIPEA_CHICKEN				0x70038
 #define _PIPEB_CHICKEN				0x71038
@@ -8298,4 +8303,5 @@ enum skl_power_gate {
 #define  MTL_LATENCY_LEVEL_EVEN_MASK	REG_GENMASK(12, 0)
 #define  MTL_LATENCY_LEVEL_ODD_MASK	REG_GENMASK(28, 16)
 
+#define MTL_MEDIA_GSI_BASE		0x380000
 #endif /* _I915_REG_H_ */
diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
index 8ff66b4e11c1..e36ba0520be7 100644
--- a/drivers/gpu/drm/i915/intel_device_info.c
+++ b/drivers/gpu/drm/i915/intel_device_info.c
@@ -29,6 +29,7 @@
 
 #include "display/intel_cdclk.h"
 #include "display/intel_de.h"
+#include "gt/intel_gt_regs.h"
 #include "intel_device_info.h"
 #include "i915_drv.h"
 #include "i915_utils.h"
@@ -133,6 +134,78 @@ void intel_device_info_print(const struct intel_device_info *info,
 	drm_printf(p, "rawclk rate: %u kHz\n", runtime->rawclk_freq);
 }
 
+static void ip_ver_read(struct drm_i915_private *i915, u32 offset, struct ip_version *ip,
+			const struct ip_version *dr_ip)
+{
+	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
+	void __iomem *addr;
+	u32 ver;
+
+	addr = pci_iomap_range(pdev, 0, offset, sizeof(u32));
+	if (drm_WARN_ON(&i915->drm, !addr))
+		return;
+
+	ver = ioread32(addr);
+	pci_iounmap(pdev, addr);
+
+	ip->ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, ver);
+	ip->rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, ver);
+	ip->step = REG_FIELD_GET(GMD_ID_STEP, ver);
+
+	/* Sanity check against expected versions from device info */
+	if (ip->ver != dr_ip->ver || ip->rel > dr_ip->rel)
+		drm_dbg(&i915->drm,
+			"Hardware reports GMD IP version %u.%u but minimum expected is %u.%u\n",
+			ip->ver, ip->rel, dr_ip->ver, dr_ip->rel);
+}
+
+/**
+ * intel_ipver_early_init - setup IP version values
+ * @dev_priv: device private
+ *
+ * Setup the graphics version for the current device.  This must be done before
+ * any code that performs checks on GRAPHICS_VER or DISPLAY_VER, so this
+ * function should be called very early in the driver initialization sequence.
+ *
+ * Regular MMIO access is not yet setup at the point this function is called so
+ * we peek at the appropriate MMIO offset directly.  The GMD_ID register is
+ * part of an 'always on' power well by design, so we don't need to worry about
+ * forcewake while reading it.
+ */
+static void intel_ipver_early_init(struct drm_i915_private *i915)
+{
+	struct intel_runtime_info *rtime = RUNTIME_INFO(i915);
+	const struct intel_runtime_info *drinfo = &INTEL_INFO(i915)->__runtime;
+
+	if (!HAS_GMD_ID(i915))
+		return;
+
+	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_GRAPHICS), &rtime->graphics,
+		    &drinfo->graphics);
+	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_DISPLAY), &rtime->display,
+		    &drinfo->display);
+	ip_ver_read(i915, MTL_MEDIA_GSI_BASE + i915_mmio_reg_offset(GMD_ID_GRAPHICS),
+		    &rtime->media, &drinfo->media);
+}
+
+/**
+ * intel_device_info_runtime_init_early - initialize early runtime info
+ * @i915: the i915 device
+ *
+ * Determine early intel_device_info fields at runtime.
+ *
+ * Use it when:
+ *   - Early init of certain runtime info fields are to be initialized
+ *
+ * This function needs to be called:
+ *   - before the MMIO has been setup as we are reading registers,
+ *   - before the PCH has been detected,
+ *   - before the first usage of the fields it can tweak.
+ */
+void intel_device_info_runtime_init_early(struct drm_i915_private *i915)
+{
+	intel_ipver_early_init(i915);
+}
 #undef INTEL_VGA_DEVICE
 #define INTEL_VGA_DEVICE(id, info) (id)
 
diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
index 6511b25277dc..6031e729714e 100644
--- a/drivers/gpu/drm/i915/intel_device_info.h
+++ b/drivers/gpu/drm/i915/intel_device_info.h
@@ -152,6 +152,7 @@ enum intel_ppgtt_type {
 	func(has_4tile); \
 	func(has_flat_ccs); \
 	func(has_global_mocs); \
+	func(has_gmd_id); \
 	func(has_gt_uc); \
 	func(has_heci_pxp); \
 	func(has_heci_gscfi); \
@@ -197,6 +198,7 @@ enum intel_ppgtt_type {
 struct ip_version {
 	u8 ver;
 	u8 rel;
+	u8 step;
 };
 
 struct intel_runtime_info {
@@ -307,6 +309,7 @@ struct intel_driver_caps {
 
 const char *intel_platform_name(enum intel_platform platform);
 
+void intel_device_info_runtime_init_early(struct drm_i915_private *dev_priv);
 void intel_device_info_subplatform_init(struct drm_i915_private *dev_priv);
 void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
 
-- 
2.25.1

Re: [Intel-gfx] [PATCH v3 02/11] drm/i915: Read graphics/media/display arch version from hw

[Jani Nikula]

On Wed, 31 Aug 2022, Radhakrishna Sripada <radhakrishna.sripada@intel.com> wrote:
> From: Matt Roper <matthew.d.roper@intel.com>
>
> Going forward, the hardware teams no longer consider new platforms to
> have a "generation" in the way we've defined it for past platforms.
> Instead, each IP block (graphics, media, display) will have their own
> architecture major.minor versions and stepping ID's which should be read
> directly from a register in the MMIO space.  New hardware programming
> styles, features, and workarounds should be conditional solely on the
> architecture version, and should no longer be derived from the PCI
> device ID, revision ID, or platform-specific feature flags.
>
> Bspec: 63361, 64111
>
> v2:
>   - Move the IP version readout to intel_device_info.c
>   - Convert the macro into a function
>
> Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
> ---
>  drivers/gpu/drm/i915/gt/intel_gt_regs.h  |  2 +
>  drivers/gpu/drm/i915/i915_driver.c       |  2 +
>  drivers/gpu/drm/i915/i915_drv.h          |  2 +
>  drivers/gpu/drm/i915/i915_pci.c          |  1 +
>  drivers/gpu/drm/i915/i915_reg.h          |  6 ++
>  drivers/gpu/drm/i915/intel_device_info.c | 73 ++++++++++++++++++++++++
>  drivers/gpu/drm/i915/intel_device_info.h |  3 +
>  7 files changed, 89 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> index d414785003cc..579da62158c4 100644
> --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> @@ -39,6 +39,8 @@
>  #define FORCEWAKE_ACK_RENDER_GEN9		_MMIO(0xd84)
>  #define FORCEWAKE_ACK_MEDIA_GEN9		_MMIO(0xd88)
>  
> +#define GMD_ID_GRAPHICS				_MMIO(0xd8c)
> +
>  #define MCFG_MCR_SELECTOR			_MMIO(0xfd0)
>  #define SF_MCR_SELECTOR				_MMIO(0xfd8)
>  #define GEN8_MCR_SELECTOR			_MMIO(0xfdc)
> diff --git a/drivers/gpu/drm/i915/i915_driver.c b/drivers/gpu/drm/i915/i915_driver.c
> index 3aedc33ded57..5826c70d6fa5 100644
> --- a/drivers/gpu/drm/i915/i915_driver.c
> +++ b/drivers/gpu/drm/i915/i915_driver.c
> @@ -323,6 +323,8 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
>  	if (i915_inject_probe_failure(dev_priv))
>  		return -ENODEV;
>  
> +	intel_device_info_runtime_init_early(dev_priv);
> +
>  	intel_device_info_subplatform_init(dev_priv);

Hmm, so why not move the subplatform init call to runtime init early?

>  	intel_step_init(dev_priv);
>  
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index bf60593a4ce5..935ff3486fef 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -936,6 +936,8 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
>  
>  #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
>  
> +#define HAS_GMD_ID(i915)	INTEL_INFO(i915)->has_gmd_id
> +
>  #define HAS_LSPCON(dev_priv) (IS_DISPLAY_VER(dev_priv, 9, 10))
>  
>  #define HAS_L3_CCS_READ(i915) (INTEL_INFO(i915)->has_l3_ccs_read)
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index 72577e327c71..9772c315185d 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -1129,6 +1129,7 @@ static const struct intel_device_info mtl_info = {
>  	PLATFORM(INTEL_METEORLAKE),
>  	.display.has_modular_fia = 1,
>  	.has_flat_ccs = 0,
> +	.has_gmd_id = 1,
>  	.has_snoop = 1,
>  	.__runtime.memory_regions = REGION_SMEM | REGION_STOLEN_LMEM,
>  	.__runtime.platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(CCS0),
> diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
> index 5e6239864c35..f52ed6d00030 100644
> --- a/drivers/gpu/drm/i915/i915_reg.h
> +++ b/drivers/gpu/drm/i915/i915_reg.h
> @@ -5798,6 +5798,11 @@
>  #define ICL_DSSM_CDCLK_PLL_REFCLK_19_2MHz	(1 << 29)
>  #define ICL_DSSM_CDCLK_PLL_REFCLK_38_4MHz	(2 << 29)
>  
> +#define GMD_ID_DISPLAY				_MMIO(0x510a0)
> +#define   GMD_ID_ARCH_MASK			REG_GENMASK(31, 22)
> +#define   GMD_ID_RELEASE_MASK			REG_GENMASK(21, 14)
> +#define   GMD_ID_STEP				REG_GENMASK(5, 0)
> +
>  /*GEN11 chicken */
>  #define _PIPEA_CHICKEN				0x70038
>  #define _PIPEB_CHICKEN				0x71038
> @@ -8298,4 +8303,5 @@ enum skl_power_gate {
>  #define  MTL_LATENCY_LEVEL_EVEN_MASK	REG_GENMASK(12, 0)
>  #define  MTL_LATENCY_LEVEL_ODD_MASK	REG_GENMASK(28, 16)
>  
> +#define MTL_MEDIA_GSI_BASE		0x380000

Blank line here.

>  #endif /* _I915_REG_H_ */
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
> index 8ff66b4e11c1..e36ba0520be7 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -29,6 +29,7 @@
>  
>  #include "display/intel_cdclk.h"
>  #include "display/intel_de.h"
> +#include "gt/intel_gt_regs.h"
>  #include "intel_device_info.h"
>  #include "i915_drv.h"
>  #include "i915_utils.h"
> @@ -133,6 +134,78 @@ void intel_device_info_print(const struct intel_device_info *info,
>  	drm_printf(p, "rawclk rate: %u kHz\n", runtime->rawclk_freq);
>  }
>  
> +static void ip_ver_read(struct drm_i915_private *i915, u32 offset, struct ip_version *ip,
> +			const struct ip_version *dr_ip)
> +{
> +	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> +	void __iomem *addr;
> +	u32 ver;
> +
> +	addr = pci_iomap_range(pdev, 0, offset, sizeof(u32));
> +	if (drm_WARN_ON(&i915->drm, !addr))
> +		return;
> +
> +	ver = ioread32(addr);
> +	pci_iounmap(pdev, addr);
> +
> +	ip->ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, ver);
> +	ip->rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, ver);
> +	ip->step = REG_FIELD_GET(GMD_ID_STEP, ver);
> +
> +	/* Sanity check against expected versions from device info */
> +	if (ip->ver != dr_ip->ver || ip->rel > dr_ip->rel)
> +		drm_dbg(&i915->drm,
> +			"Hardware reports GMD IP version %u.%u but minimum expected is %u.%u\n",
> +			ip->ver, ip->rel, dr_ip->ver, dr_ip->rel);

So this doesn't work because you pass in the same pointer in both ip and
dr_ip, and you overwrite it above. These will always match. I think just
drop the 2nd pointer from parameters, and make a local copy. Or read the
values to a local copy, check them, and assign.

> +}
> +
> +/**
> + * intel_ipver_early_init - setup IP version values
> + * @dev_priv: device private

We don't need (or want) kernel-doc for static functions. It just
pollutes the generated documentation. The informative part can stay as a
regular comment.

> + *
> + * Setup the graphics version for the current device.  This must be done before
> + * any code that performs checks on GRAPHICS_VER or DISPLAY_VER, so this
> + * function should be called very early in the driver initialization sequence.
> + *
> + * Regular MMIO access is not yet setup at the point this function is called so
> + * we peek at the appropriate MMIO offset directly.  The GMD_ID register is
> + * part of an 'always on' power well by design, so we don't need to worry about
> + * forcewake while reading it.
> + */
> +static void intel_ipver_early_init(struct drm_i915_private *i915)
> +{
> +	struct intel_runtime_info *rtime = RUNTIME_INFO(i915);
> +	const struct intel_runtime_info *drinfo = &INTEL_INFO(i915)->__runtime;

"runtime" and "info" have been used elsewhere as the variable
names. Whether they are good is debatable, but better to stick to one
naming.

> +
> +	if (!HAS_GMD_ID(i915))
> +		return;
> +
> +	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_GRAPHICS), &rtime->graphics,
> +		    &drinfo->graphics);
> +	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_DISPLAY), &rtime->display,
> +		    &drinfo->display);
> +	ip_ver_read(i915, MTL_MEDIA_GSI_BASE + i915_mmio_reg_offset(GMD_ID_GRAPHICS),
> +		    &rtime->media, &drinfo->media);
> +}
> +
> +/**
> + * intel_device_info_runtime_init_early - initialize early runtime info
> + * @i915: the i915 device

Even if this isn't a static function, I think it does beg the question
does it need to be part of the generated documentation?

> + *
> + * Determine early intel_device_info fields at runtime.
> + *
> + * Use it when:
> + *   - Early init of certain runtime info fields are to be initialized
> + *
> + * This function needs to be called:
> + *   - before the MMIO has been setup as we are reading registers,
> + *   - before the PCH has been detected,
> + *   - before the first usage of the fields it can tweak.
> + */
> +void intel_device_info_runtime_init_early(struct drm_i915_private *i915)
> +{
> +	intel_ipver_early_init(i915);
> +}

Blank line here.

>  #undef INTEL_VGA_DEVICE
>  #define INTEL_VGA_DEVICE(id, info) (id)
>  
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index 6511b25277dc..6031e729714e 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -152,6 +152,7 @@ enum intel_ppgtt_type {
>  	func(has_4tile); \
>  	func(has_flat_ccs); \
>  	func(has_global_mocs); \
> +	func(has_gmd_id); \
>  	func(has_gt_uc); \
>  	func(has_heci_pxp); \
>  	func(has_heci_gscfi); \
> @@ -197,6 +198,7 @@ enum intel_ppgtt_type {
>  struct ip_version {
>  	u8 ver;
>  	u8 rel;
> +	u8 step;
>  };
>  
>  struct intel_runtime_info {
> @@ -307,6 +309,7 @@ struct intel_driver_caps {
>  
>  const char *intel_platform_name(enum intel_platform platform);
>  
> +void intel_device_info_runtime_init_early(struct drm_i915_private *dev_priv);
>  void intel_device_info_subplatform_init(struct drm_i915_private *dev_priv);
>  void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);

-- 
Jani Nikula, Intel Open Source Graphics Center

Re: [Intel-gfx] [PATCH v3 02/11] drm/i915: Read graphics/media/display arch version from hw

[Sripada, Radhakrishna]

Hi Jani,

> -----Original Message-----
> From: Jani Nikula <jani.nikula@linux.intel.com>
> Sent: Thursday, September 1, 2022 12:58 AM
> To: Sripada, Radhakrishna <radhakrishna.sripada@intel.com>; intel-
> gfx@lists.freedesktop.org
> Cc: dri-devel@lists.freedesktop.org
> Subject: Re: [Intel-gfx] [PATCH v3 02/11] drm/i915: Read graphics/media/display
> arch version from hw
> 
> On Wed, 31 Aug 2022, Radhakrishna Sripada <radhakrishna.sripada@intel.com>
> wrote:
> > From: Matt Roper <matthew.d.roper@intel.com>
> >
> > Going forward, the hardware teams no longer consider new platforms to
> > have a "generation" in the way we've defined it for past platforms.
> > Instead, each IP block (graphics, media, display) will have their own
> > architecture major.minor versions and stepping ID's which should be read
> > directly from a register in the MMIO space.  New hardware programming
> > styles, features, and workarounds should be conditional solely on the
> > architecture version, and should no longer be derived from the PCI
> > device ID, revision ID, or platform-specific feature flags.
> >
> > Bspec: 63361, 64111
> >
> > v2:
> >   - Move the IP version readout to intel_device_info.c
> >   - Convert the macro into a function
> >
> > Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
> > Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
> > Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
> > ---
> >  drivers/gpu/drm/i915/gt/intel_gt_regs.h  |  2 +
> >  drivers/gpu/drm/i915/i915_driver.c       |  2 +
> >  drivers/gpu/drm/i915/i915_drv.h          |  2 +
> >  drivers/gpu/drm/i915/i915_pci.c          |  1 +
> >  drivers/gpu/drm/i915/i915_reg.h          |  6 ++
> >  drivers/gpu/drm/i915/intel_device_info.c | 73 ++++++++++++++++++++++++
> >  drivers/gpu/drm/i915/intel_device_info.h |  3 +
> >  7 files changed, 89 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> > index d414785003cc..579da62158c4 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> > +++ b/drivers/gpu/drm/i915/gt/intel_gt_regs.h
> > @@ -39,6 +39,8 @@
> >  #define FORCEWAKE_ACK_RENDER_GEN9		_MMIO(0xd84)
> >  #define FORCEWAKE_ACK_MEDIA_GEN9		_MMIO(0xd88)
> >
> > +#define GMD_ID_GRAPHICS				_MMIO(0xd8c)
> > +
> >  #define MCFG_MCR_SELECTOR			_MMIO(0xfd0)
> >  #define SF_MCR_SELECTOR				_MMIO(0xfd8)
> >  #define GEN8_MCR_SELECTOR			_MMIO(0xfdc)
> > diff --git a/drivers/gpu/drm/i915/i915_driver.c
> b/drivers/gpu/drm/i915/i915_driver.c
> > index 3aedc33ded57..5826c70d6fa5 100644
> > --- a/drivers/gpu/drm/i915/i915_driver.c
> > +++ b/drivers/gpu/drm/i915/i915_driver.c
> > @@ -323,6 +323,8 @@ static int i915_driver_early_probe(struct
> drm_i915_private *dev_priv)
> >  	if (i915_inject_probe_failure(dev_priv))
> >  		return -ENODEV;
> >
> > +	intel_device_info_runtime_init_early(dev_priv);
> > +
> >  	intel_device_info_subplatform_init(dev_priv);
> 
> Hmm, so why not move the subplatform init call to runtime init early?
Will move in next rev.

> 
> >  	intel_step_init(dev_priv);
> >
> > diff --git a/drivers/gpu/drm/i915/i915_drv.h
> b/drivers/gpu/drm/i915/i915_drv.h
> > index bf60593a4ce5..935ff3486fef 100644
> > --- a/drivers/gpu/drm/i915/i915_drv.h
> > +++ b/drivers/gpu/drm/i915/i915_drv.h
> > @@ -936,6 +936,8 @@ IS_SUBPLATFORM(const struct drm_i915_private
> *i915,
> >
> >  #define HAS_GMCH(dev_priv) (INTEL_INFO(dev_priv)->display.has_gmch)
> >
> > +#define HAS_GMD_ID(i915)	INTEL_INFO(i915)->has_gmd_id
> > +
> >  #define HAS_LSPCON(dev_priv) (IS_DISPLAY_VER(dev_priv, 9, 10))
> >
> >  #define HAS_L3_CCS_READ(i915) (INTEL_INFO(i915)->has_l3_ccs_read)
> > diff --git a/drivers/gpu/drm/i915/i915_pci.c
> b/drivers/gpu/drm/i915/i915_pci.c
> > index 72577e327c71..9772c315185d 100644
> > --- a/drivers/gpu/drm/i915/i915_pci.c
> > +++ b/drivers/gpu/drm/i915/i915_pci.c
> > @@ -1129,6 +1129,7 @@ static const struct intel_device_info mtl_info = {
> >  	PLATFORM(INTEL_METEORLAKE),
> >  	.display.has_modular_fia = 1,
> >  	.has_flat_ccs = 0,
> > +	.has_gmd_id = 1,
> >  	.has_snoop = 1,
> >  	.__runtime.memory_regions = REGION_SMEM |
> REGION_STOLEN_LMEM,
> >  	.__runtime.platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(CCS0),
> > diff --git a/drivers/gpu/drm/i915/i915_reg.h
> b/drivers/gpu/drm/i915/i915_reg.h
> > index 5e6239864c35..f52ed6d00030 100644
> > --- a/drivers/gpu/drm/i915/i915_reg.h
> > +++ b/drivers/gpu/drm/i915/i915_reg.h
> > @@ -5798,6 +5798,11 @@
> >  #define ICL_DSSM_CDCLK_PLL_REFCLK_19_2MHz	(1 << 29)
> >  #define ICL_DSSM_CDCLK_PLL_REFCLK_38_4MHz	(2 << 29)
> >
> > +#define GMD_ID_DISPLAY				_MMIO(0x510a0)
> > +#define   GMD_ID_ARCH_MASK			REG_GENMASK(31, 22)
> > +#define   GMD_ID_RELEASE_MASK			REG_GENMASK(21, 14)
> > +#define   GMD_ID_STEP				REG_GENMASK(5, 0)
> > +
> >  /*GEN11 chicken */
> >  #define _PIPEA_CHICKEN				0x70038
> >  #define _PIPEB_CHICKEN				0x71038
> > @@ -8298,4 +8303,5 @@ enum skl_power_gate {
> >  #define  MTL_LATENCY_LEVEL_EVEN_MASK	REG_GENMASK(12, 0)
> >  #define  MTL_LATENCY_LEVEL_ODD_MASK	REG_GENMASK(28, 16)
> >
> > +#define MTL_MEDIA_GSI_BASE		0x380000
> 
> Blank line here.
> 
> >  #endif /* _I915_REG_H_ */
> > diff --git a/drivers/gpu/drm/i915/intel_device_info.c
> b/drivers/gpu/drm/i915/intel_device_info.c
> > index 8ff66b4e11c1..e36ba0520be7 100644
> > --- a/drivers/gpu/drm/i915/intel_device_info.c
> > +++ b/drivers/gpu/drm/i915/intel_device_info.c
> > @@ -29,6 +29,7 @@
> >
> >  #include "display/intel_cdclk.h"
> >  #include "display/intel_de.h"
> > +#include "gt/intel_gt_regs.h"
> >  #include "intel_device_info.h"
> >  #include "i915_drv.h"
> >  #include "i915_utils.h"
> > @@ -133,6 +134,78 @@ void intel_device_info_print(const struct
> intel_device_info *info,
> >  	drm_printf(p, "rawclk rate: %u kHz\n", runtime->rawclk_freq);
> >  }
> >
> > +static void ip_ver_read(struct drm_i915_private *i915, u32 offset, struct
> ip_version *ip,
> > +			const struct ip_version *dr_ip)
> > +{
> > +	struct pci_dev *pdev = to_pci_dev(i915->drm.dev);
> > +	void __iomem *addr;
> > +	u32 ver;
> > +
> > +	addr = pci_iomap_range(pdev, 0, offset, sizeof(u32));
> > +	if (drm_WARN_ON(&i915->drm, !addr))
> > +		return;
> > +
> > +	ver = ioread32(addr);
> > +	pci_iounmap(pdev, addr);
> > +
> > +	ip->ver = REG_FIELD_GET(GMD_ID_ARCH_MASK, ver);
> > +	ip->rel = REG_FIELD_GET(GMD_ID_RELEASE_MASK, ver);
> > +	ip->step = REG_FIELD_GET(GMD_ID_STEP, ver);
> > +
> > +	/* Sanity check against expected versions from device info */
> > +	if (ip->ver != dr_ip->ver || ip->rel > dr_ip->rel)
> > +		drm_dbg(&i915->drm,
> > +			"Hardware reports GMD IP version %u.%u but minimum
> expected is %u.%u\n",
> > +			ip->ver, ip->rel, dr_ip->ver, dr_ip->rel);
> 
> So this doesn't work because you pass in the same pointer in both ip and
> dr_ip, and you overwrite it above. These will always match. I think just
> drop the 2nd pointer from parameters, and make a local copy. Or read the
> values to a local copy, check them, and assign.

We pass 2 different pointers here. Ip obtained from RUNTIME_INFO is 
&dev_priv->__runtime.{display,graphics,media} and dr_ip obtained from
INTEL_INFO is &dev_priv->__info.__runtime.
So the original hardcoded values in match info would be in dr_ip.

Since we copy INTEL_INFO(dev_priv)->__runtime onto RUNTIME_INFO(dev_priv)
During driver create, we can cache the values and skip passing 2 pointers.
> 
> > +}
> > +
> > +/**
> > + * intel_ipver_early_init - setup IP version values
> > + * @dev_priv: device private
> 
> We don't need (or want) kernel-doc for static functions. It just
> pollutes the generated documentation. The informative part can stay as a
> regular comment.

Will drop in next rev.
> 
> > + *
> > + * Setup the graphics version for the current device.  This must be done
> before
> > + * any code that performs checks on GRAPHICS_VER or DISPLAY_VER, so this
> > + * function should be called very early in the driver initialization sequence.
> > + *
> > + * Regular MMIO access is not yet setup at the point this function is called so
> > + * we peek at the appropriate MMIO offset directly.  The GMD_ID register is
> > + * part of an 'always on' power well by design, so we don't need to worry
> about
> > + * forcewake while reading it.
> > + */
> > +static void intel_ipver_early_init(struct drm_i915_private *i915)
> > +{
> > +	struct intel_runtime_info *rtime = RUNTIME_INFO(i915);
> > +	const struct intel_runtime_info *drinfo = &INTEL_INFO(i915)-
> >__runtime;
> 
> "runtime" and "info" have been used elsewhere as the variable
> names. Whether they are good is debatable, but better to stick to one
> naming.

If passing single pointer is sufficient, I will skip using drinfo and modify the
variable in next rev.

Thanks,
RK Sripada
> 
> > +
> > +	if (!HAS_GMD_ID(i915))
> > +		return;
> > +
> > +	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_GRAPHICS), &rtime-
> >graphics,
> > +		    &drinfo->graphics);
> > +	ip_ver_read(i915, i915_mmio_reg_offset(GMD_ID_DISPLAY), &rtime-
> >display,
> > +		    &drinfo->display);
> > +	ip_ver_read(i915, MTL_MEDIA_GSI_BASE +
> i915_mmio_reg_offset(GMD_ID_GRAPHICS),
> > +		    &rtime->media, &drinfo->media);
> > +}
> > +
> > +/**
> > + * intel_device_info_runtime_init_early - initialize early runtime info
> > + * @i915: the i915 device
> 
> Even if this isn't a static function, I think it does beg the question
> does it need to be part of the generated documentation?

Will drop in next rev.
> 
> > + *
> > + * Determine early intel_device_info fields at runtime.
> > + *
> > + * Use it when:
> > + *   - Early init of certain runtime info fields are to be initialized
> > + *
> > + * This function needs to be called:
> > + *   - before the MMIO has been setup as we are reading registers,
> > + *   - before the PCH has been detected,
> > + *   - before the first usage of the fields it can tweak.
> > + */
> > +void intel_device_info_runtime_init_early(struct drm_i915_private *i915)
> > +{
> > +	intel_ipver_early_init(i915);
> > +}
> 
> Blank line here.
> 
> >  #undef INTEL_VGA_DEVICE
> >  #define INTEL_VGA_DEVICE(id, info) (id)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_device_info.h
> b/drivers/gpu/drm/i915/intel_device_info.h
> > index 6511b25277dc..6031e729714e 100644
> > --- a/drivers/gpu/drm/i915/intel_device_info.h
> > +++ b/drivers/gpu/drm/i915/intel_device_info.h
> > @@ -152,6 +152,7 @@ enum intel_ppgtt_type {
> >  	func(has_4tile); \
> >  	func(has_flat_ccs); \
> >  	func(has_global_mocs); \
> > +	func(has_gmd_id); \
> >  	func(has_gt_uc); \
> >  	func(has_heci_pxp); \
> >  	func(has_heci_gscfi); \
> > @@ -197,6 +198,7 @@ enum intel_ppgtt_type {
> >  struct ip_version {
> >  	u8 ver;
> >  	u8 rel;
> > +	u8 step;
> >  };
> >
> >  struct intel_runtime_info {
> > @@ -307,6 +309,7 @@ struct intel_driver_caps {
> >
> >  const char *intel_platform_name(enum intel_platform platform);
> >
> > +void intel_device_info_runtime_init_early(struct drm_i915_private
> *dev_priv);
> >  void intel_device_info_subplatform_init(struct drm_i915_private *dev_priv);
> >  void intel_device_info_runtime_init(struct drm_i915_private *dev_priv);
> 
> --
> Jani Nikula, Intel Open Source Graphics Center

[Intel-gfx] [PATCH v3 03/11] drm/i915: Parse and set stepping for platforms with GMD

[Radhakrishna Sripada]

From: José Roberto de Souza <jose.souza@intel.com>

The GMD step field do not properly match the current stepping convention
that we use(STEP_A0, STEP_A1, STEP_B0...).

One platform could have { arch = 12, rel = 70, step = 1 } and the
actual stepping is STEP_B0 but without the translation of the step
field would mean STEP_A1.
That is why we will need to have gmd_to_intel_step tables for each IP.

Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
---
 drivers/gpu/drm/i915/intel_step.c | 60 +++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_step.c b/drivers/gpu/drm/i915/intel_step.c
index 42b3133d8387..0fa7147c7d0f 100644
--- a/drivers/gpu/drm/i915/intel_step.c
+++ b/drivers/gpu/drm/i915/intel_step.c
@@ -135,6 +135,48 @@ static const struct intel_step_info adlp_n_revids[] = {
 	[0x0] = { COMMON_GT_MEDIA_STEP(A0), .display_step = STEP_D0 },
 };
 
+struct gmd_to_intel_step {
+	struct ip_version gmd;
+	enum intel_step step;
+};
+
+static const struct gmd_to_intel_step gmd_graphics_table[] = {
+	{ .gmd.ver = 12, .gmd.rel = 70, .gmd.step = 0, .step = STEP_A0 },
+	{ .gmd.ver = 12, .gmd.rel = 70, .gmd.step = 4, .step = STEP_B0 },
+	{ .gmd.ver = 12, .gmd.rel = 71, .gmd.step = 0, .step = STEP_A0 },
+	{ .gmd.ver = 12, .gmd.rel = 71, .gmd.step = 4, .step = STEP_B0 },
+	{ .gmd.ver = 12, .gmd.rel = 73, .gmd.step = 0, .step = STEP_A0 },
+	{ .gmd.ver = 12, .gmd.rel = 73, .gmd.step = 4, .step = STEP_B0 },
+};
+
+static const struct gmd_to_intel_step gmd_media_table[] = {
+	{ .gmd.ver = 13, .gmd.rel = 70, .gmd.step = 0, .step = STEP_A0 },
+	{ .gmd.ver = 13, .gmd.rel = 70, .gmd.step = 4, .step = STEP_B0 },
+};
+
+static const struct gmd_to_intel_step gmd_display_table[] = {
+	{ .gmd.ver = 14, .gmd.rel = 0, .gmd.step = 0, .step = STEP_A0 },
+	{ .gmd.ver = 14, .gmd.rel = 0, .gmd.step = 4, .step = STEP_B0 },
+};
+
+static u8 gmd_to_intel_step(struct drm_i915_private *i915,
+			    struct ip_version *gmd,
+			    const struct gmd_to_intel_step *table,
+			    int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (table[i].gmd.ver == gmd->ver &&
+		    table[i].gmd.rel == gmd->rel &&
+		    table[i].gmd.step == gmd->step)
+			return table[i].step;
+	}
+
+	drm_dbg(&i915->drm, "Using future steppings\n");
+	return STEP_FUTURE;
+}
+
 static void pvc_step_init(struct drm_i915_private *i915, int pci_revid);
 
 void intel_step_init(struct drm_i915_private *i915)
@@ -144,6 +186,24 @@ void intel_step_init(struct drm_i915_private *i915)
 	int revid = INTEL_REVID(i915);
 	struct intel_step_info step = {};
 
+	if (HAS_GMD_ID(i915)) {
+		step.graphics_step = gmd_to_intel_step(i915,
+						       &RUNTIME_INFO(i915)->graphics,
+						       gmd_graphics_table,
+						       ARRAY_SIZE(gmd_graphics_table));
+		step.media_step = gmd_to_intel_step(i915,
+						    &RUNTIME_INFO(i915)->media,
+						    gmd_media_table,
+						    ARRAY_SIZE(gmd_media_table));
+		step.display_step = gmd_to_intel_step(i915,
+						      &RUNTIME_INFO(i915)->display,
+						      gmd_display_table,
+						      ARRAY_SIZE(gmd_display_table));
+		RUNTIME_INFO(i915)->step = step;
+
+		return;
+	}
+
 	if (IS_PONTEVECCHIO(i915)) {
 		pvc_step_init(i915, revid);
 		return;
-- 
2.25.1

[Intel-gfx] [PATCH v3 04/11] drm/i915/mtl: Define engine context layouts

[Radhakrishna Sripada]

From: Matt Roper <matthew.d.roper@intel.com>

The part of the media and blitter engine contexts that we care about for
setting up an initial state are the same on MTL as they were on DG2
(and PVC), so we need to update the driver conditions to re-use the DG2
context table.

For render/compute engines, the part of the context images are nearly
the same, although the layout had a very slight change --- one POSH
register was removed and the placement of some LRI/noops adjusted
slightly to compensate.

v2:
 - Dg2, mtl xcs offsets slightly vary. Use a seperate offsets array(Bala)
 - Drop unused registers in mtl rcs offsets.(Bala)

Bspec: 46261, 46260, 45585
Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/gt/intel_lrc.c | 81 ++++++++++++++++++++++++++++-
 1 file changed, 79 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 070cec4ff8a4..ecb030ee39cd 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -264,6 +264,38 @@ static const u8 dg2_xcs_offsets[] = {
 	END
 };
 
+static const u8 mtl_xcs_offsets[] = {
+	NOP(1),
+	LRI(13, POSTED),
+	REG16(0x244),
+	REG(0x034),
+	REG(0x030),
+	REG(0x038),
+	REG(0x03c),
+	REG(0x168),
+	REG(0x140),
+	REG(0x110),
+	REG(0x1c0),
+	REG(0x1c4),
+	REG(0x1c8),
+	REG(0x180),
+	REG16(0x2b4),
+
+	NOP(1),
+	LRI(9, POSTED),
+	REG16(0x3a8),
+	REG16(0x28c),
+	REG16(0x288),
+	REG16(0x284),
+	REG16(0x280),
+	REG16(0x27c),
+	REG16(0x278),
+	REG16(0x274),
+	REG16(0x270),
+
+	END
+};
+
 static const u8 gen8_rcs_offsets[] = {
 	NOP(1),
 	LRI(14, POSTED),
@@ -606,6 +638,47 @@ static const u8 dg2_rcs_offsets[] = {
 	END
 };
 
+static const u8 mtl_rcs_offsets[] = {
+       NOP(1),
+       LRI(13, POSTED),
+       REG16(0x244),
+       REG(0x034),
+       REG(0x030),
+       REG(0x038),
+       REG(0x03c),
+       REG(0x168),
+       REG(0x140),
+       REG(0x110),
+       REG(0x1c0),
+       REG(0x1c4),
+       REG(0x1c8),
+       REG(0x180),
+       REG16(0x2b4),
+
+       NOP(1),
+       LRI(9, POSTED),
+       REG16(0x3a8),
+       REG16(0x28c),
+       REG16(0x288),
+       REG16(0x284),
+       REG16(0x280),
+       REG16(0x27c),
+       REG16(0x278),
+       REG16(0x274),
+       REG16(0x270),
+
+       NOP(2),
+       LRI(2, POSTED),
+       REG16(0x5a8),
+       REG16(0x5ac),
+
+       NOP(6),
+       LRI(1, 0),
+       REG(0x0c8),
+
+       END
+};
+
 #undef END
 #undef REG16
 #undef REG
@@ -624,7 +697,9 @@ static const u8 *reg_offsets(const struct intel_engine_cs *engine)
 		   !intel_engine_has_relative_mmio(engine));
 
 	if (engine->flags & I915_ENGINE_HAS_RCS_REG_STATE) {
-		if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
+		if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 70))
+			return mtl_rcs_offsets;
+		else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 			return dg2_rcs_offsets;
 		else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 50))
 			return xehp_rcs_offsets;
@@ -637,7 +712,9 @@ static const u8 *reg_offsets(const struct intel_engine_cs *engine)
 		else
 			return gen8_rcs_offsets;
 	} else {
-		if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
+		if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 70))
+			return mtl_xcs_offsets;
+		else if (GRAPHICS_VER_FULL(engine->i915) >= IP_VER(12, 55))
 			return dg2_xcs_offsets;
 		else if (GRAPHICS_VER(engine->i915) >= 12)
 			return gen12_xcs_offsets;
-- 
2.25.1

[Intel-gfx] [PATCH v3 05/11] drm/i915/mtl: Add gmbus and gpio support

[Radhakrishna Sripada]

Add tables to map the GMBUS pin pairs to GPIO registers and port to DDC.
From spec we have registers GPIO_CTL[1-5] mapped to native display phys and
GPIO_CTL[9-12] are mapped to TC ports.

v2:
 - Drop unused GPIO pins(MattR)

BSpec: 49306

Cc: Matt Roper <matthew.d.roper@intel.com>
Original Author: Brian J Lovin
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/display/intel_gmbus.c | 15 +++++++++++++++
 drivers/gpu/drm/i915/display/intel_gmbus.h |  1 +
 2 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c
index 6f6cfccad477..74443f57f62d 100644
--- a/drivers/gpu/drm/i915/display/intel_gmbus.c
+++ b/drivers/gpu/drm/i915/display/intel_gmbus.c
@@ -117,6 +117,18 @@ static const struct gmbus_pin gmbus_pins_dg2[] = {
 	[GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ },
 };
 
+static const struct gmbus_pin gmbus_pins_mtp[] = {
+	[GMBUS_PIN_1_BXT] = { "dpa", GPIOB },
+	[GMBUS_PIN_2_BXT] = { "dpb", GPIOC },
+	[GMBUS_PIN_3_BXT] = { "dpc", GPIOD },
+	[GMBUS_PIN_4_CNP] = { "dpd", GPIOE },
+	[GMBUS_PIN_5_MTP] = { "dpe", GPIOF },
+	[GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ },
+	[GMBUS_PIN_10_TC2_ICP] = { "tc2", GPIOK },
+	[GMBUS_PIN_11_TC3_ICP] = { "tc3", GPIOL },
+	[GMBUS_PIN_12_TC4_ICP] = { "tc4", GPIOM },
+};
+
 static const struct gmbus_pin *get_gmbus_pin(struct drm_i915_private *i915,
 					     unsigned int pin)
 {
@@ -129,6 +141,9 @@ static const struct gmbus_pin *get_gmbus_pin(struct drm_i915_private *i915,
 	} else if (INTEL_PCH_TYPE(i915) >= PCH_DG1) {
 		pins = gmbus_pins_dg1;
 		size = ARRAY_SIZE(gmbus_pins_dg1);
+	} else if (INTEL_PCH_TYPE(i915) >= PCH_MTP) {
+		pins = gmbus_pins_mtp;
+		size = ARRAY_SIZE(gmbus_pins_mtp);
 	} else if (INTEL_PCH_TYPE(i915) >= PCH_ICP) {
 		pins = gmbus_pins_icp;
 		size = ARRAY_SIZE(gmbus_pins_icp);
diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.h b/drivers/gpu/drm/i915/display/intel_gmbus.h
index 8edc2e99cf53..20f704bd4e70 100644
--- a/drivers/gpu/drm/i915/display/intel_gmbus.h
+++ b/drivers/gpu/drm/i915/display/intel_gmbus.h
@@ -24,6 +24,7 @@ struct i2c_adapter;
 #define GMBUS_PIN_2_BXT		2
 #define GMBUS_PIN_3_BXT		3
 #define GMBUS_PIN_4_CNP		4
+#define GMBUS_PIN_5_MTP		5
 #define GMBUS_PIN_9_TC1_ICP	9
 #define GMBUS_PIN_10_TC2_ICP	10
 #define GMBUS_PIN_11_TC3_ICP	11
-- 
2.25.1

Re: [Intel-gfx] [PATCH v3 05/11] drm/i915/mtl: Add gmbus and gpio support

[Balasubramani Vivekanandan]

On 31.08.2022 14:49, Radhakrishna Sripada wrote:
> Add tables to map the GMBUS pin pairs to GPIO registers and port to DDC.
> From spec we have registers GPIO_CTL[1-5] mapped to native display phys and
> GPIO_CTL[9-12] are mapped to TC ports.
> 
> v2:
>  - Drop unused GPIO pins(MattR)
> 
> BSpec: 49306
> 
> Cc: Matt Roper <matthew.d.roper@intel.com>
> Original Author: Brian J Lovin
> Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
> ---
>  drivers/gpu/drm/i915/display/intel_gmbus.c | 15 +++++++++++++++
>  drivers/gpu/drm/i915/display/intel_gmbus.h |  1 +
>  2 files changed, 16 insertions(+)

Reviewed-by: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
> 
> diff --git a/drivers/gpu/drm/i915/display/intel_gmbus.c b/drivers/gpu/drm/i915/display/intel_gmbus.c
> index 6f6cfccad477..74443f57f62d 100644
> --- a/drivers/gpu/drm/i915/display/intel_gmbus.c
> +++ b/drivers/gpu/drm/i915/display/intel_gmbus.c
> @@ -117,6 +117,18 @@ static const struct gmbus_pin gmbus_pins_dg2[] = {
>  	[GMBUS_PIN_9_TC1_ICP] = { "tc1", GPIOJ },
>  };
>  

[Intel-gfx] [PATCH v3 06/11] drm/i915/mtl: Add display power wells

[Radhakrishna Sripada]

From: Imre Deak <imre.deak@intel.com>

Add support for display power wells on MTL. The differences from XE_LPD:
- The AUX HW block is moved to the PICA block, where the registers are on
  an always-on power well and the functionality needs to be powered on/off
  via the AUX_CH_CTL register: [1], [2]
- The DDI IO power on/off programming sequence is moved to the PHY PLL
  enable/disable sequence. [3], [4], [5]

Bspec: [1] 49233, [2] 65247, [3] 64568, [4] 65451, [5] 65450

v2:
 - Update the comment in aux power well enable
 - Reuse the noop sync fn for aux sync.
 - Use REG_BIT for new register bit definitions

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 .../i915/display/intel_display_power_map.c    | 115 +++++++++++++++++-
 .../i915/display/intel_display_power_well.c   |  44 +++++++
 .../i915/display/intel_display_power_well.h   |   4 +
 drivers/gpu/drm/i915/display/intel_dp_aux.c   |   8 ++
 drivers/gpu/drm/i915/i915_reg.h               |  21 ++++
 5 files changed, 191 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display_power_map.c b/drivers/gpu/drm/i915/display/intel_display_power_map.c
index 5ddd1b93751c..dc04afc6cc8f 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_map.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_map.c
@@ -1350,6 +1350,117 @@ static const struct i915_power_well_desc_list xelpd_power_wells[] = {
 	I915_PW_DESCRIPTORS(xelpd_power_wells_main),
 };
 
+/*
+ * MTL is based on XELPD power domains with the exception of power gating for:
+ * - DDI_IO (moved to PLL logic)
+ * - AUX and AUX_IO functionality and register access for USBC1-4 (PICA always-on)
+ */
+#define XELPDP_PW_2_POWER_DOMAINS \
+	XELPD_PW_B_POWER_DOMAINS, \
+	XELPD_PW_C_POWER_DOMAINS, \
+	XELPD_PW_D_POWER_DOMAINS, \
+	POWER_DOMAIN_AUDIO_PLAYBACK, \
+	POWER_DOMAIN_VGA, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC1, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC2, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC3, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC4
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_pw_2,
+	XELPDP_PW_2_POWER_DOMAINS,
+	POWER_DOMAIN_INIT);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_dc_off,
+	XELPDP_PW_2_POWER_DOMAINS,
+	POWER_DOMAIN_AUDIO_MMIO,
+	POWER_DOMAIN_MODESET,
+	POWER_DOMAIN_AUX_A,
+	POWER_DOMAIN_AUX_B,
+	POWER_DOMAIN_INIT);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc1,
+	POWER_DOMAIN_AUX_USBC1,
+	POWER_DOMAIN_AUX_TBT1);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc2,
+	POWER_DOMAIN_AUX_USBC2,
+	POWER_DOMAIN_AUX_TBT2);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc3,
+	POWER_DOMAIN_AUX_USBC3,
+	POWER_DOMAIN_AUX_TBT3);
+
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc4,
+	POWER_DOMAIN_AUX_USBC4,
+	POWER_DOMAIN_AUX_TBT4);
+
+static const struct i915_power_well_desc xelpdp_power_wells_main[] = {
+	{
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("DC_off", &xelpdp_pwdoms_dc_off,
+				.id = SKL_DISP_DC_OFF),
+		),
+		.ops = &gen9_dc_off_power_well_ops,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_2", &xelpdp_pwdoms_pw_2,
+				.hsw.idx = ICL_PW_CTL_IDX_PW_2,
+				.id = SKL_DISP_PW_2),
+		),
+		.ops = &hsw_power_well_ops,
+		.has_vga = true,
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_A", &xelpd_pwdoms_pw_a,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_A),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_A),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_B", &xelpd_pwdoms_pw_b,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_B),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_B),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_C", &xelpd_pwdoms_pw_c,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_C),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_C),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("PW_D", &xelpd_pwdoms_pw_d,
+				.hsw.idx = XELPD_PW_CTL_IDX_PW_D),
+		),
+		.ops = &hsw_power_well_ops,
+		.irq_pipe_mask = BIT(PIPE_D),
+		.has_fuses = true,
+	}, {
+		.instances = &I915_PW_INSTANCES(
+			I915_PW("AUX_A", &icl_pwdoms_aux_a, .xelpdp.aux_ch = AUX_CH_A),
+			I915_PW("AUX_B", &icl_pwdoms_aux_b, .xelpdp.aux_ch = AUX_CH_B),
+			I915_PW("AUX_TC1", &xelpdp_pwdoms_aux_tc1, .xelpdp.aux_ch = AUX_CH_USBC1),
+			I915_PW("AUX_TC2", &xelpdp_pwdoms_aux_tc2, .xelpdp.aux_ch = AUX_CH_USBC2),
+			I915_PW("AUX_TC3", &xelpdp_pwdoms_aux_tc3, .xelpdp.aux_ch = AUX_CH_USBC3),
+			I915_PW("AUX_TC4", &xelpdp_pwdoms_aux_tc4, .xelpdp.aux_ch = AUX_CH_USBC4),
+		),
+		.ops = &xelpdp_aux_power_well_ops,
+	},
+};
+
+static const struct i915_power_well_desc_list xelpdp_power_wells[] = {
+	I915_PW_DESCRIPTORS(i9xx_power_wells_always_on),
+	I915_PW_DESCRIPTORS(icl_power_wells_pw_1),
+	I915_PW_DESCRIPTORS(xelpdp_power_wells_main),
+};
+
 static void init_power_well_domains(const struct i915_power_well_instance *inst,
 				    struct i915_power_well *power_well)
 {
@@ -1457,7 +1568,9 @@ int intel_display_power_map_init(struct i915_power_domains *power_domains)
 		return 0;
 	}
 
-	if (DISPLAY_VER(i915) >= 13)
+	if (DISPLAY_VER(i915) >= 14)
+		return set_power_wells(power_domains, xelpdp_power_wells);
+	else if (DISPLAY_VER(i915) >= 13)
 		return set_power_wells(power_domains, xelpd_power_wells);
 	else if (IS_DG1(i915))
 		return set_power_wells(power_domains, dg1_power_wells);
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 29cc05c04c65..9bf98a37204b 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -1798,6 +1798,43 @@ tgl_tc_cold_off_power_well_is_enabled(struct drm_i915_private *dev_priv,
 	return intel_power_well_refcount(power_well);
 }
 
+static void xelpdp_aux_power_well_enable(struct drm_i915_private *dev_priv,
+					 struct i915_power_well *power_well)
+{
+	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+
+	intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
+		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
+		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST);
+
+	/*
+	 * The power status flag cannot be used to determine whether aux
+	 * power wells have finished powering up.  Instead we're
+	 * expected to just wait a fixed 600us after raising the request
+	 * bit.
+	 */
+	usleep_range(600, 1200);
+}
+
+static void xelpdp_aux_power_well_disable(struct drm_i915_private *dev_priv,
+					  struct i915_power_well *power_well)
+{
+	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+
+	intel_de_rmw(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch),
+		     XELPDP_DP_AUX_CH_CTL_POWER_REQUEST,
+		     0);
+	usleep_range(10, 30);
+}
+
+static bool xelpdp_aux_power_well_enabled(struct drm_i915_private *dev_priv,
+					  struct i915_power_well *power_well)
+{
+	enum aux_ch aux_ch = i915_power_well_instance(power_well)->xelpdp.aux_ch;
+
+	return intel_de_read(dev_priv, XELPDP_DP_AUX_CH_CTL(aux_ch)) &
+		XELPDP_DP_AUX_CH_CTL_POWER_STATUS;
+}
 
 const struct i915_power_well_ops i9xx_always_on_power_well_ops = {
 	.sync_hw = i9xx_power_well_sync_hw_noop,
@@ -1911,3 +1948,10 @@ const struct i915_power_well_ops tgl_tc_cold_off_ops = {
 	.disable = tgl_tc_cold_off_power_well_disable,
 	.is_enabled = tgl_tc_cold_off_power_well_is_enabled,
 };
+
+const struct i915_power_well_ops xelpdp_aux_power_well_ops = {
+	.sync_hw = i9xx_power_well_sync_hw_noop,
+	.enable = xelpdp_aux_power_well_enable,
+	.disable = xelpdp_aux_power_well_disable,
+	.is_enabled = xelpdp_aux_power_well_enabled,
+};
diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.h b/drivers/gpu/drm/i915/display/intel_display_power_well.h
index 31a898176ebb..e13b521e322a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.h
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.h
@@ -80,6 +80,9 @@ struct i915_power_well_instance {
 			 */
 			u8 idx;
 		} hsw;
+		struct {
+			u8 aux_ch;
+		} xelpdp;
 	};
 };
 
@@ -169,5 +172,6 @@ extern const struct i915_power_well_ops vlv_dpio_power_well_ops;
 extern const struct i915_power_well_ops icl_aux_power_well_ops;
 extern const struct i915_power_well_ops icl_ddi_power_well_ops;
 extern const struct i915_power_well_ops tgl_tc_cold_off_ops;
+extern const struct i915_power_well_ops xelpdp_aux_power_well_ops;
 
 #endif
diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index f2ad1d09ab43..98bd33645b43 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -150,6 +150,7 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
 				u32 unused)
 {
 	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	struct drm_i915_private *i915 =	to_i915(dig_port->base.base.dev);
 	u32 ret;
 
 	/*
@@ -170,6 +171,13 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
 	if (intel_tc_port_in_tbt_alt_mode(dig_port))
 		ret |= DP_AUX_CH_CTL_TBT_IO;
 
+	/*
+	 * Power request bit is already set during aux power well enable.
+	 * Preserve the bit across aux transactions.
+	 */
+	if (DISPLAY_VER(i915) >= 14)
+		ret |= XELPDP_DP_AUX_CH_CTL_POWER_REQUEST;
+
 	return ret;
 }
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f52ed6d00030..42e26057f44a 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3451,6 +3451,25 @@
 #define DP_AUX_CH_CTL(aux_ch)	_MMIO_PORT(aux_ch, _DPA_AUX_CH_CTL, _DPB_AUX_CH_CTL)
 #define DP_AUX_CH_DATA(aux_ch, i)	_MMIO(_PORT(aux_ch, _DPA_AUX_CH_DATA1, _DPB_AUX_CH_DATA1) + (i) * 4) /* 5 registers */
 
+#define _XELPDP_USBC1_AUX_CH_CTL	0x16F210
+#define _XELPDP_USBC2_AUX_CH_CTL	0x16F410
+#define _XELPDP_USBC3_AUX_CH_CTL	0x16F610
+#define _XELPDP_USBC4_AUX_CH_CTL	0x16F810
+
+#define _XELPDP_USBC1_AUX_CH_DATA1	0x16F214
+#define _XELPDP_USBC2_AUX_CH_DATA1	0x16F414
+#define _XELPDP_USBC3_AUX_CH_DATA1	0x16F614
+#define _XELPDP_USBC4_AUX_CH_DATA1	0x16F814
+
+#define XELPDP_DP_AUX_CH_CTL(aux_ch)		_MMIO(_PICK(aux_ch, \
+						       _DPA_AUX_CH_CTL, \
+						       _DPB_AUX_CH_CTL, \
+						       0, /* port/aux_ch C is non-existent */ \
+						       _XELPDP_USBC1_AUX_CH_CTL, \
+						       _XELPDP_USBC2_AUX_CH_CTL, \
+						       _XELPDP_USBC3_AUX_CH_CTL, \
+						       _XELPDP_USBC4_AUX_CH_CTL))
+
 #define   DP_AUX_CH_CTL_SEND_BUSY	    (1 << 31)
 #define   DP_AUX_CH_CTL_DONE		    (1 << 30)
 #define   DP_AUX_CH_CTL_INTERRUPT	    (1 << 29)
@@ -3463,6 +3482,8 @@
 #define   DP_AUX_CH_CTL_RECEIVE_ERROR	    (1 << 25)
 #define   DP_AUX_CH_CTL_MESSAGE_SIZE_MASK    (0x1f << 20)
 #define   DP_AUX_CH_CTL_MESSAGE_SIZE_SHIFT   20
+#define   XELPDP_DP_AUX_CH_CTL_POWER_REQUEST REG_BIT(19)
+#define   XELPDP_DP_AUX_CH_CTL_POWER_STATUS  REG_BIT(18)
 #define   DP_AUX_CH_CTL_PRECHARGE_2US_MASK   (0xf << 16)
 #define   DP_AUX_CH_CTL_PRECHARGE_2US_SHIFT  16
 #define   DP_AUX_CH_CTL_AUX_AKSV_SELECT	    (1 << 15)
-- 
2.25.1

[Intel-gfx] [PATCH v3 07/11] drm/i915/mtl: Add DP AUX support on TypeC ports

[Radhakrishna Sripada]

From: Imre Deak <imre.deak@intel.com>

On MTL TypeC ports the AUX_CH_CTL and AUX_CH_DATA addresses have
changed wrt. previous platforms, adjust the code accordingly.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp_aux.c | 45 ++++++++++++++++++++-
 drivers/gpu/drm/i915/i915_reg.h             |  9 +++++
 2 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp_aux.c b/drivers/gpu/drm/i915/display/intel_dp_aux.c
index 98bd33645b43..48c375c65a41 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_aux.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_aux.c
@@ -637,6 +637,46 @@ static i915_reg_t tgl_aux_data_reg(struct intel_dp *intel_dp, int index)
 	}
 }
 
+static i915_reg_t xelpdp_aux_ctl_reg(struct intel_dp *intel_dp)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	enum aux_ch aux_ch = dig_port->aux_ch;
+
+	switch (aux_ch) {
+	case AUX_CH_A:
+	case AUX_CH_B:
+	case AUX_CH_USBC1:
+	case AUX_CH_USBC2:
+	case AUX_CH_USBC3:
+	case AUX_CH_USBC4:
+		return XELPDP_DP_AUX_CH_CTL(aux_ch);
+	default:
+		MISSING_CASE(aux_ch);
+		return XELPDP_DP_AUX_CH_CTL(AUX_CH_A);
+	}
+}
+
+static i915_reg_t xelpdp_aux_data_reg(struct intel_dp *intel_dp, int index)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+	struct intel_digital_port *dig_port = dp_to_dig_port(intel_dp);
+	enum aux_ch aux_ch = dig_port->aux_ch;
+
+	switch (aux_ch) {
+	case AUX_CH_A:
+	case AUX_CH_B:
+	case AUX_CH_USBC1:
+	case AUX_CH_USBC2:
+	case AUX_CH_USBC3:
+	case AUX_CH_USBC4:
+		return XELPDP_DP_AUX_CH_DATA(aux_ch, index);
+	default:
+		MISSING_CASE(aux_ch);
+		return XELPDP_DP_AUX_CH_DATA(AUX_CH_A, index);
+	}
+}
+
 void intel_dp_aux_fini(struct intel_dp *intel_dp)
 {
 	if (cpu_latency_qos_request_active(&intel_dp->pm_qos))
@@ -652,7 +692,10 @@ void intel_dp_aux_init(struct intel_dp *intel_dp)
 	struct intel_encoder *encoder = &dig_port->base;
 	enum aux_ch aux_ch = dig_port->aux_ch;
 
-	if (DISPLAY_VER(dev_priv) >= 12) {
+	if (DISPLAY_VER(dev_priv) >= 14) {
+		intel_dp->aux_ch_ctl_reg = xelpdp_aux_ctl_reg;
+		intel_dp->aux_ch_data_reg = xelpdp_aux_data_reg;
+	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		intel_dp->aux_ch_ctl_reg = tgl_aux_ctl_reg;
 		intel_dp->aux_ch_data_reg = tgl_aux_data_reg;
 	} else if (DISPLAY_VER(dev_priv) >= 9) {
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 42e26057f44a..18adfd8126a2 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3470,6 +3470,15 @@
 						       _XELPDP_USBC3_AUX_CH_CTL, \
 						       _XELPDP_USBC4_AUX_CH_CTL))
 
+#define XELPDP_DP_AUX_CH_DATA(aux_ch, i)	_MMIO(_PICK(aux_ch, \
+						       _DPA_AUX_CH_DATA1, \
+						       _DPB_AUX_CH_DATA1, \
+						       0, /* port/aux_ch C is non-existent */ \
+						       _XELPDP_USBC1_AUX_CH_DATA1, \
+						       _XELPDP_USBC2_AUX_CH_DATA1, \
+						       _XELPDP_USBC3_AUX_CH_DATA1, \
+						       _XELPDP_USBC4_AUX_CH_DATA1) + (i) * 4)
+
 #define   DP_AUX_CH_CTL_SEND_BUSY	    (1 << 31)
 #define   DP_AUX_CH_CTL_DONE		    (1 << 30)
 #define   DP_AUX_CH_CTL_INTERRUPT	    (1 << 29)
-- 
2.25.1

[Intel-gfx] [PATCH v3 08/11] drm/i915/mtl: Obtain SAGV values from MMIO instead of GT pcode mailbox

[Radhakrishna Sripada]

From Meteorlake, Latency Level, SAGV bloack time are read from
LATENCY_SAGV register instead of the GT driver pcode mailbox. DDR type
and QGV information are also to be read from Mem SS registers.

v2:
 - Simplify MTL_MEM_SS_INFO_QGV_POINT macro(MattR)
 - Nit: Rearrange the bit def's from higher to lower(MattR)
 - Restore platform definition for ADL-P(MattR)
 - Move back intel_qgv_point def to intel_bw.c(Jani)

Bspec: 64636, 64608

Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Original Author: Caz Yokoyama
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/display/intel_bw.c | 42 ++++++++++++++++++++++---
 drivers/gpu/drm/i915/i915_reg.h         | 18 +++++++++++
 drivers/gpu/drm/i915/intel_dram.c       | 41 +++++++++++++++++++++++-
 drivers/gpu/drm/i915/intel_pm.c         |  8 ++++-
 4 files changed, 102 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_bw.c b/drivers/gpu/drm/i915/display/intel_bw.c
index 61308ebe48aa..b13c4e240619 100644
--- a/drivers/gpu/drm/i915/display/intel_bw.c
+++ b/drivers/gpu/drm/i915/display/intel_bw.c
@@ -137,6 +137,42 @@ int icl_pcode_restrict_qgv_points(struct drm_i915_private *dev_priv,
 	return 0;
 }
 
+static int mtl_read_qgv_point_info(struct drm_i915_private *dev_priv,
+				   struct intel_qgv_point *sp, int point)
+{
+	u32 val, val2;
+	u16 dclk;
+
+	val = intel_uncore_read(&dev_priv->uncore,
+				MTL_MEM_SS_INFO_QGV_POINT_LOW(point));
+	val2 = intel_uncore_read(&dev_priv->uncore,
+				 MTL_MEM_SS_INFO_QGV_POINT_HIGH(point));
+	dclk = REG_FIELD_GET(MTL_DCLK_MASK, val);
+	sp->dclk = DIV_ROUND_UP((16667 * dclk), 1000);
+	sp->t_rp = REG_FIELD_GET(MTL_TRP_MASK, val);
+	sp->t_rcd = REG_FIELD_GET(MTL_TRCD_MASK, val);
+
+	sp->t_rdpre = REG_FIELD_GET(MTL_TRDPRE_MASK, val2);
+	sp->t_ras = REG_FIELD_GET(MTL_TRAS_MASK, val2);
+
+	sp->t_rc = sp->t_rp + sp->t_ras;
+
+	return 0;
+}
+
+static int
+intel_read_qgv_point_info(struct drm_i915_private *dev_priv,
+			  struct intel_qgv_point *sp,
+			  int point)
+{
+	if (DISPLAY_VER(dev_priv) >= 14)
+		return mtl_read_qgv_point_info(dev_priv, sp, point);
+	else if (IS_DG1(dev_priv))
+		return dg1_mchbar_read_qgv_point_info(dev_priv, sp, point);
+	else
+		return icl_pcode_read_qgv_point_info(dev_priv, sp, point);
+}
+
 static int icl_get_qgv_points(struct drm_i915_private *dev_priv,
 			      struct intel_qgv_info *qi,
 			      bool is_y_tile)
@@ -218,11 +254,7 @@ static int icl_get_qgv_points(struct drm_i915_private *dev_priv,
 	for (i = 0; i < qi->num_points; i++) {
 		struct intel_qgv_point *sp = &qi->points[i];
 
-		if (IS_DG1(dev_priv))
-			ret = dg1_mchbar_read_qgv_point_info(dev_priv, sp, i);
-		else
-			ret = icl_pcode_read_qgv_point_info(dev_priv, sp, i);
-
+		ret = intel_read_qgv_point_info(dev_priv, sp, i);
 		if (ret)
 			return ret;
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 18adfd8126a2..d22fabe35a0c 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -8334,4 +8334,22 @@ enum skl_power_gate {
 #define  MTL_LATENCY_LEVEL_ODD_MASK	REG_GENMASK(28, 16)
 
 #define MTL_MEDIA_GSI_BASE		0x380000
+
+#define MTL_LATENCY_SAGV		_MMIO(0x4578c)
+#define   MTL_LATENCY_QCLK_SAGV		REG_GENMASK(12, 0)
+
+#define MTL_MEM_SS_INFO_GLOBAL			_MMIO(0x45700)
+#define   MTL_N_OF_ENABLED_QGV_POINTS_MASK	REG_GENMASK(11, 8)
+#define   MTL_N_OF_POPULATED_CH_MASK		REG_GENMASK(7, 4)
+#define   MTL_DDR_TYPE_MASK			REG_GENMASK(3, 0)
+
+#define MTL_MEM_SS_INFO_QGV_POINT_LOW(point)	 _MMIO(0x45710 + (point) * 2)
+#define   MTL_TRCD_MASK			REG_GENMASK(31, 24)
+#define   MTL_TRP_MASK			REG_GENMASK(23, 16)
+#define   MTL_DCLK_MASK			REG_GENMASK(15, 0)
+
+#define MTL_MEM_SS_INFO_QGV_POINT_HIGH(point)	 _MMIO(0x45714 + (point) * 2)
+#define   MTL_TRAS_MASK			REG_GENMASK(16, 8)
+#define   MTL_TRDPRE_MASK		REG_GENMASK(7, 0)
+
 #endif /* _I915_REG_H_ */
diff --git a/drivers/gpu/drm/i915/intel_dram.c b/drivers/gpu/drm/i915/intel_dram.c
index 437447119770..2403ccd52c74 100644
--- a/drivers/gpu/drm/i915/intel_dram.c
+++ b/drivers/gpu/drm/i915/intel_dram.c
@@ -466,6 +466,43 @@ static int gen12_get_dram_info(struct drm_i915_private *i915)
 	return icl_pcode_read_mem_global_info(i915);
 }
 
+static int xelpdp_get_dram_info(struct drm_i915_private *i915)
+{
+	u32 val = intel_uncore_read(&i915->uncore, MTL_MEM_SS_INFO_GLOBAL);
+	struct dram_info *dram_info = &i915->dram_info;
+
+	val = REG_FIELD_GET(MTL_DDR_TYPE_MASK, val);
+	switch (val) {
+	case 0:
+		dram_info->type = INTEL_DRAM_DDR4;
+		break;
+	case 1:
+		dram_info->type = INTEL_DRAM_DDR5;
+		break;
+	case 2:
+		dram_info->type = INTEL_DRAM_LPDDR5;
+		break;
+	case 3:
+		dram_info->type = INTEL_DRAM_LPDDR4;
+		break;
+	case 4:
+		dram_info->type = INTEL_DRAM_DDR3;
+		break;
+	case 5:
+		dram_info->type = INTEL_DRAM_LPDDR3;
+		break;
+	default:
+		MISSING_CASE(val);
+		return -EINVAL;
+	}
+
+	dram_info->num_channels = REG_FIELD_GET(MTL_N_OF_POPULATED_CH_MASK, val);
+	dram_info->num_qgv_points = REG_FIELD_GET(MTL_N_OF_ENABLED_QGV_POINTS_MASK, val);
+	/* PSF GV points not supported in D14+ */
+
+	return 0;
+}
+
 void intel_dram_detect(struct drm_i915_private *i915)
 {
 	struct dram_info *dram_info = &i915->dram_info;
@@ -480,7 +517,9 @@ void intel_dram_detect(struct drm_i915_private *i915)
 	 */
 	dram_info->wm_lv_0_adjust_needed = !IS_GEN9_LP(i915);
 
-	if (GRAPHICS_VER(i915) >= 12)
+	if (DISPLAY_VER(i915) >= 14)
+		ret = xelpdp_get_dram_info(i915);
+	else if (GRAPHICS_VER(i915) >= 12)
 		ret = gen12_get_dram_info(i915);
 	else if (GRAPHICS_VER(i915) >= 11)
 		ret = gen11_get_dram_info(i915);
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 210c1f78cc90..ebce6171ccef 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3697,7 +3697,13 @@ intel_has_sagv(struct drm_i915_private *dev_priv)
 static u32
 intel_sagv_block_time(struct drm_i915_private *dev_priv)
 {
-	if (DISPLAY_VER(dev_priv) >= 12) {
+	if (DISPLAY_VER(dev_priv) >= 14) {
+		u32 val;
+
+		val = intel_uncore_read(&dev_priv->uncore, MTL_LATENCY_SAGV);
+
+		return REG_FIELD_GET(MTL_LATENCY_QCLK_SAGV, val);
+	} else if (DISPLAY_VER(dev_priv) >= 12) {
 		u32 val = 0;
 		int ret;
 
-- 
2.25.1

[Intel-gfx] [PATCH v3 09/11] drm/i915/mtl: Update MBUS_DBOX credits

[Radhakrishna Sripada]

Display version 14 platforms have different credits values compared to ADL-P.
Update the credits based on pipe usage.

v2: Simplify DBOX BW Credit definition(MattR)

Bspec: 49213

Cc: Jose Roberto de Souza <jose.souza@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Original Author: Caz Yokoyama
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/i915_reg.h |  4 +++
 drivers/gpu/drm/i915/intel_pm.c | 47 ++++++++++++++++++++++++++++++---
 2 files changed, 47 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index d22fabe35a0c..f9237586ab4f 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -1125,8 +1125,12 @@
 #define MBUS_DBOX_REGULATE_B2B_TRANSACTIONS_EN	REG_BIT(16) /* tgl+ */
 #define MBUS_DBOX_BW_CREDIT_MASK		REG_GENMASK(15, 14)
 #define MBUS_DBOX_BW_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_BW_CREDIT_MASK, x)
+#define MBUS_DBOX_BW_4CREDITS_MTL		REG_FIELD_PREP(MBUS_DBOX_BW_CREDIT_MASK, 0x2)
+#define MBUS_DBOX_BW_8CREDITS_MTL		REG_FIELD_PREP(MBUS_DBOX_BW_CREDIT_MASK, 0x3)
 #define MBUS_DBOX_B_CREDIT_MASK			REG_GENMASK(12, 8)
 #define MBUS_DBOX_B_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_B_CREDIT_MASK, x)
+#define MBUS_DBOX_I_CREDIT_MASK			REG_GENMASK(7, 5)
+#define MBUS_DBOX_I_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_I_CREDIT_MASK, x)
 #define MBUS_DBOX_A_CREDIT_MASK			REG_GENMASK(3, 0)
 #define MBUS_DBOX_A_CREDIT(x)			REG_FIELD_PREP(MBUS_DBOX_A_CREDIT_MASK, x)
 
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index ebce6171ccef..b19a1ecb010e 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -8448,6 +8448,27 @@ void intel_dbuf_post_plane_update(struct intel_atomic_state *state)
 				new_dbuf_state->enabled_slices);
 }
 
+static bool xelpdp_is_one_pipe_per_dbuf_bank(enum pipe pipe, u8 active_pipes)
+{
+	switch (pipe) {
+	case PIPE_A:
+	case PIPE_D:
+		if (is_power_of_2(active_pipes & (BIT(PIPE_A) | BIT(PIPE_D))))
+			return true;
+		break;
+	case PIPE_B:
+	case PIPE_C:
+		if (is_power_of_2(active_pipes & (BIT(PIPE_B) | BIT(PIPE_C))))
+			return true;
+		break;
+	default: /* to suppress compiler warning */
+		MISSING_CASE(pipe);
+		break;
+	}
+
+	return false;
+}
+
 void intel_mbus_dbox_update(struct intel_atomic_state *state)
 {
 	struct drm_i915_private *i915 = to_i915(state->base.dev);
@@ -8467,20 +8488,28 @@ void intel_mbus_dbox_update(struct intel_atomic_state *state)
 	     new_dbuf_state->active_pipes == old_dbuf_state->active_pipes))
 		return;
 
+	if (DISPLAY_VER(i915) >= 14)
+		val |= MBUS_DBOX_I_CREDIT(2);
+
 	if (DISPLAY_VER(i915) >= 12) {
 		val |= MBUS_DBOX_B2B_TRANSACTIONS_MAX(16);
 		val |= MBUS_DBOX_B2B_TRANSACTIONS_DELAY(1);
 		val |= MBUS_DBOX_REGULATE_B2B_TRANSACTIONS_EN;
 	}
 
-	/* Wa_22010947358:adl-p */
-	if (IS_ALDERLAKE_P(i915))
+	if (DISPLAY_VER(i915) >= 14)
+		val |= new_dbuf_state->joined_mbus ? MBUS_DBOX_A_CREDIT(12) :
+						     MBUS_DBOX_A_CREDIT(8);
+	else if (IS_ALDERLAKE_P(i915))
+		/* Wa_22010947358:adl-p */
 		val |= new_dbuf_state->joined_mbus ? MBUS_DBOX_A_CREDIT(6) :
 						     MBUS_DBOX_A_CREDIT(4);
 	else
 		val |= MBUS_DBOX_A_CREDIT(2);
 
-	if (IS_ALDERLAKE_P(i915)) {
+	if (DISPLAY_VER(i915) >= 14) {
+		val |= MBUS_DBOX_B_CREDIT(0xA);
+	} else if (IS_ALDERLAKE_P(i915)) {
 		val |= MBUS_DBOX_BW_CREDIT(2);
 		val |= MBUS_DBOX_B_CREDIT(8);
 	} else if (DISPLAY_VER(i915) >= 12) {
@@ -8492,10 +8521,20 @@ void intel_mbus_dbox_update(struct intel_atomic_state *state)
 	}
 
 	for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) {
+		u32 pipe_val = val;
+
 		if (!new_crtc_state->hw.active ||
 		    !intel_crtc_needs_modeset(new_crtc_state))
 			continue;
 
-		intel_de_write(i915, PIPE_MBUS_DBOX_CTL(crtc->pipe), val);
+		if (DISPLAY_VER(i915) >= 14) {
+			if (xelpdp_is_one_pipe_per_dbuf_bank(crtc->pipe,
+							     new_dbuf_state->active_pipes))
+				pipe_val |= MBUS_DBOX_BW_8CREDITS_MTL;
+			else
+				pipe_val |= MBUS_DBOX_BW_4CREDITS_MTL;
+		}
+
+		intel_de_write(i915, PIPE_MBUS_DBOX_CTL(crtc->pipe), pipe_val);
 	}
 }
-- 
2.25.1

[Intel-gfx] [PATCH v3 10/11] drm/i915/mtl: Update CHICKEN_TRANS* register addresses

[Radhakrishna Sripada]

From: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>

In Display version 14, Transcoder Chicken Registers are moved from DPRZ to DRPOS
to reduce register signal crossings for Unit Interface Optimization.

This patch modifies the CHICKEN_TRANS macro to add a DISPLAY_VER check for
calculating the correct platform offsets.

(And also updates existing CHICKEN_TRANS occurrences to the new definition)

v2: Omit display version check in i915_reg.h(Jani)

Bspec: 34387, 50054
Cc: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 14 ++++++++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c  |  5 +++-
 drivers/gpu/drm/i915/display/intel_psr.c     |  6 +++--
 drivers/gpu/drm/i915/i915_reg.h              | 25 +++++++++++++++-----
 4 files changed, 38 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index be7cff722196..a3d0d12084a9 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -618,7 +618,10 @@ void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state)
 	if (!IS_I830(dev_priv))
 		val &= ~PIPECONF_ENABLE;
 
-	if (DISPLAY_VER(dev_priv) >= 12)
+	if (DISPLAY_VER(dev_priv) >= 14)
+		intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(cpu_transcoder),
+			     FECSTALL_DIS_DPTSTREAM_DPTTG, 0);
+	else if (DISPLAY_VER(dev_priv) >= 12)
 		intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder),
 			     FECSTALL_DIS_DPTSTREAM_DPTTG, 0);
 
@@ -1838,7 +1841,9 @@ static void hsw_set_frame_start_delay(const struct intel_crtc_state *crtc_state)
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
-	i915_reg_t reg = CHICKEN_TRANS(crtc_state->cpu_transcoder);
+	enum transcoder transcoder = crtc_state->cpu_transcoder;
+	i915_reg_t reg = DISPLAY_VER(dev_priv) >= 14 ? MTL_CHICKEN_TRANS(transcoder) :
+			 CHICKEN_TRANS(transcoder);
 	u32 val;
 
 	val = intel_de_read(dev_priv, reg);
@@ -4033,6 +4038,7 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 {
 	struct drm_i915_private *dev_priv = to_i915(crtc->base.dev);
 	struct intel_display_power_domain_set power_domain_set = { };
+	i915_reg_t reg;
 	bool active;
 	u32 tmp;
 
@@ -4124,7 +4130,9 @@ static bool hsw_get_pipe_config(struct intel_crtc *crtc,
 	}
 
 	if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) {
-		tmp = intel_de_read(dev_priv, CHICKEN_TRANS(pipe_config->cpu_transcoder));
+		reg = DISPLAY_VER(dev_priv) >= 14 ? MTL_CHICKEN_TRANS(pipe_config->cpu_transcoder) :
+			CHICKEN_TRANS(pipe_config->cpu_transcoder);
+		tmp = intel_de_read(dev_priv, reg);
 
 		pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1;
 	} else {
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index 13abe2b2170e..298004cae5a5 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -568,7 +568,10 @@ static void intel_mst_enable_dp(struct intel_atomic_state *state,
 	drm_dp_add_payload_part2(&intel_dp->mst_mgr, &state->base,
 				 drm_atomic_get_mst_payload_state(mst_state, connector->port));
 
-	if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable)
+	if (DISPLAY_VER(dev_priv) >= 14 && pipe_config->fec_enable)
+		intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(trans), 0,
+			     FECSTALL_DIS_DPTSTREAM_DPTTG);
+	else if (DISPLAY_VER(dev_priv) >= 12 && pipe_config->fec_enable)
 		intel_de_rmw(dev_priv, CHICKEN_TRANS(trans), 0,
 			     FECSTALL_DIS_DPTSTREAM_DPTTG);
 
diff --git a/drivers/gpu/drm/i915/display/intel_psr.c b/drivers/gpu/drm/i915/display/intel_psr.c
index 079b7d3d0c53..da2d0661b630 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -1139,7 +1139,8 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 
 	if (intel_dp->psr.psr2_enabled) {
 		if (DISPLAY_VER(dev_priv) == 9)
-			intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), 0,
+			intel_de_rmw(dev_priv,
+				     CHICKEN_TRANS(cpu_transcoder), 0,
 				     PSR2_VSC_ENABLE_PROG_HEADER |
 				     PSR2_ADD_VERTICAL_LINE_COUNT);
 
@@ -1149,7 +1150,8 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp,
 		 * cause issues if non-supported panels are used.
 		 */
 		if (IS_ALDERLAKE_P(dev_priv))
-			intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), 0,
+			intel_de_rmw(dev_priv,
+				     CHICKEN_TRANS(cpu_transcoder), 0,
 				     ADLP_1_BASED_X_GRANULARITY);
 
 		/* Wa_16011168373:adl-p */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f9237586ab4f..8be7685e8a3e 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5717,17 +5717,30 @@
 #define  SKL_PLANE1_STRETCH_MAX_X1	REG_FIELD_PREP(SKL_PLANE1_STRETCH_MAX_MASK, 3)
 #define CHICKEN_PIPESL_1(pipe) _MMIO_PIPE(pipe, _CHICKEN_PIPESL_1_A, _CHICKEN_PIPESL_1_B)
 
+#define _MTL_CHICKEN_TRANS_A	0x604e0
+#define _MTL_CHICKEN_TRANS_B	0x614e0
+#define _MTL_CHICKEN_TRANS_C	0x624e0
+#define _MTL_CHICKEN_TRANS_D	0x634e0
+
 #define _CHICKEN_TRANS_A	0x420c0
 #define _CHICKEN_TRANS_B	0x420c4
 #define _CHICKEN_TRANS_C	0x420c8
 #define _CHICKEN_TRANS_EDP	0x420cc
 #define _CHICKEN_TRANS_D	0x420d8
-#define CHICKEN_TRANS(trans)	_MMIO(_PICK((trans), \
-					    [TRANSCODER_EDP] = _CHICKEN_TRANS_EDP, \
-					    [TRANSCODER_A] = _CHICKEN_TRANS_A, \
-					    [TRANSCODER_B] = _CHICKEN_TRANS_B, \
-					    [TRANSCODER_C] = _CHICKEN_TRANS_C, \
-					    [TRANSCODER_D] = _CHICKEN_TRANS_D))
+
+#define  CHICKEN_TRANS(trans)		    _MMIO(_PICK((trans), \
+						[TRANSCODER_EDP] = _CHICKEN_TRANS_EDP, \
+						[TRANSCODER_A] = _CHICKEN_TRANS_A, \
+						[TRANSCODER_B] = _CHICKEN_TRANS_B, \
+						[TRANSCODER_C] = _CHICKEN_TRANS_C, \
+						[TRANSCODER_D] = _CHICKEN_TRANS_D))
+
+#define  MTL_CHICKEN_TRANS(trans)	    _MMIO(_PICK((trans), \
+						[TRANSCODER_A] = _MTL_CHICKEN_TRANS_A, \
+						[TRANSCODER_B] = _MTL_CHICKEN_TRANS_B, \
+						[TRANSCODER_C] = _MTL_CHICKEN_TRANS_C, \
+						[TRANSCODER_D] = _MTL_CHICKEN_TRANS_D))
+
 #define  HSW_FRAME_START_DELAY_MASK	REG_GENMASK(28, 27)
 #define  HSW_FRAME_START_DELAY(x)	REG_FIELD_PREP(HSW_FRAME_START_DELAY_MASK, x)
 #define  VSC_DATA_SEL_SOFTWARE_CONTROL	REG_BIT(25) /* GLK */
-- 
2.25.1

[Intel-gfx] [PATCH v3 11/11] drm/i915/mtl: Do not update GV point, mask value

[Radhakrishna Sripada]

Display 14 and future platforms do not directly communicate to Pcode
via mailbox the SAGV bandwidth information. PM Demand registers are
used to communicate display power requirements to the PUnit which would
include GV point and mask value.

Skip programming GV point and mask values through legacy pcode mailbox
interface.

Bspec: 64636
Cc: Matt Roper <matthew.d.roper@intel.com>
Original Author: Caz Yokoyama
Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
---
 drivers/gpu/drm/i915/intel_pm.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index b19a1ecb010e..69efd613bbde 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3923,6 +3923,14 @@ void intel_sagv_pre_plane_update(struct intel_atomic_state *state)
 {
 	struct drm_i915_private *i915 = to_i915(state->base.dev);
 
+	/*
+	 * No need to update mask value/restrict because
+	 * "Pcode only wants to use GV bandwidth value, not the mask value."
+	 * for DISPLAY_VER() >= 14.
+	 */
+	if (DISPLAY_VER(i915) >= 14)
+		return;
+
 	/*
 	 * Just return if we can't control SAGV or don't have it.
 	 * This is different from situation when we have SAGV but just can't
@@ -3943,6 +3951,16 @@ void intel_sagv_post_plane_update(struct intel_atomic_state *state)
 {
 	struct drm_i915_private *i915 = to_i915(state->base.dev);
 
+	/*
+	 * No need to update mask value/restrict because
+	 * "Pcode only wants to use GV bandwidth value, not the mask value."
+	 * for DISPLAY_VER() >= 14.
+	 *
+	 * GV bandwidth will be set by intel_pmdemand_post_plane_update()
+	 */
+	if (DISPLAY_VER(i915) >= 14)
+		return;
+
 	/*
 	 * Just return if we can't control SAGV or don't have it.
 	 * This is different from situation when we have SAGV but just can't
-- 
2.25.1

[Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Initial Meteorlake Support (rev4)

[Patchwork]

== Series Details ==

Series: Initial Meteorlake Support (rev4)
URL   : https://patchwork.freedesktop.org/series/106786/
State : warning

== Summary ==

Error: dim checkpatch failed
f0dff2f56c1d drm/i915: Move display and media IP version to runtime info
-:29: CHECK:MACRO_ARG_REUSE: Macro argument reuse 'i915' - possible side-effects?
#29: FILE: drivers/gpu/drm/i915/i915_drv.h:479:
+#define MEDIA_VER_FULL(i915)		IP_VER(RUNTIME_INFO(i915)->media.ver, \
+					       RUNTIME_INFO(i915)->media.rel)

-:138: WARNING:LONG_LINE: line length of 104 exceeds 100 columns
#138: FILE: drivers/gpu/drm/i915/intel_device_info.c:107:
+		drm_printf(p, "display version: %u.%02u\n", runtime->display.ver, runtime->display.rel);

total: 0 errors, 1 warnings, 1 checks, 140 lines checked
8453574f56d8 drm/i915: Read graphics/media/display arch version from hw
dfbd430a56fb drm/i915: Parse and set stepping for platforms with GMD
440633cbcfbb drm/i915/mtl: Define engine context layouts
-:17: WARNING:TYPO_SPELLING: 'seperate' may be misspelled - perhaps 'separate'?
#17: 
 - Dg2, mtl xcs offsets slightly vary. Use a seperate offsets array(Bala)
                                             ^^^^^^^^

-:73: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#73: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:642:
+       NOP(1),$

-:74: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#74: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:643:
+       LRI(13, POSTED),$

-:75: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#75: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:644:
+       REG16(0x244),$

-:76: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#76: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:645:
+       REG(0x034),$

-:77: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#77: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:646:
+       REG(0x030),$

-:78: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#78: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:647:
+       REG(0x038),$

-:79: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#79: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:648:
+       REG(0x03c),$

-:80: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#80: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:649:
+       REG(0x168),$

-:81: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#81: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:650:
+       REG(0x140),$

-:82: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#82: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:651:
+       REG(0x110),$

-:83: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#83: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:652:
+       REG(0x1c0),$

-:84: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#84: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:653:
+       REG(0x1c4),$

-:85: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#85: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:654:
+       REG(0x1c8),$

-:86: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#86: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:655:
+       REG(0x180),$

-:87: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#87: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:656:
+       REG16(0x2b4),$

-:89: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#89: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:658:
+       NOP(1),$

-:90: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#90: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:659:
+       LRI(9, POSTED),$

-:91: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#91: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:660:
+       REG16(0x3a8),$

-:92: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#92: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:661:
+       REG16(0x28c),$

-:93: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#93: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:662:
+       REG16(0x288),$

-:94: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#94: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:663:
+       REG16(0x284),$

-:95: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#95: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:664:
+       REG16(0x280),$

-:96: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#96: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:665:
+       REG16(0x27c),$

-:97: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#97: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:666:
+       REG16(0x278),$

-:98: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#98: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:667:
+       REG16(0x274),$

-:99: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#99: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:668:
+       REG16(0x270),$

-:101: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#101: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:670:
+       NOP(2),$

-:102: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#102: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:671:
+       LRI(2, POSTED),$

-:103: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#103: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:672:
+       REG16(0x5a8),$

-:104: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#104: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:673:
+       REG16(0x5ac),$

-:106: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#106: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:675:
+       NOP(6),$

-:107: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#107: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:676:
+       LRI(1, 0),$

-:108: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#108: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:677:
+       REG(0x0c8),$

-:110: WARNING:LEADING_SPACE: please, no spaces at the start of a line
#110: FILE: drivers/gpu/drm/i915/gt/intel_lrc.c:679:
+       END$

total: 0 errors, 35 warnings, 0 checks, 105 lines checked
ca0b285a00d0 drm/i915/mtl: Add gmbus and gpio support
f789eab7b613 drm/i915/mtl: Add display power wells
-:36: ERROR:COMPLEX_MACRO: Macros with complex values should be enclosed in parentheses
#36: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1358:
+#define XELPDP_PW_2_POWER_DOMAINS \
+	XELPD_PW_B_POWER_DOMAINS, \
+	XELPD_PW_C_POWER_DOMAINS, \
+	XELPD_PW_D_POWER_DOMAINS, \
+	POWER_DOMAIN_AUDIO_PLAYBACK, \
+	POWER_DOMAIN_VGA, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC1, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC2, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC3, \
+	POWER_DOMAIN_PORT_DDI_LANES_TC4

-:48: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#48: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1370:
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_pw_2,
+	XELPDP_PW_2_POWER_DOMAINS,

-:52: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#52: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1374:
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_dc_off,
+	XELPDP_PW_2_POWER_DOMAINS,

-:60: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#60: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1382:
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc1,
+	POWER_DOMAIN_AUX_USBC1,

-:64: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#64: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1386:
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc2,
+	POWER_DOMAIN_AUX_USBC2,

-:68: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#68: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1390:
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc3,
+	POWER_DOMAIN_AUX_USBC3,

-:72: CHECK:PARENTHESIS_ALIGNMENT: Alignment should match open parenthesis
#72: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1394:
+I915_DECL_PW_DOMAINS(xelpdp_pwdoms_aux_tc4,
+	POWER_DOMAIN_AUX_USBC4,

-:77: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#77: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1399:
+		.instances = &I915_PW_INSTANCES(

-:83: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#83: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1405:
+		.instances = &I915_PW_INSTANCES(

-:92: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#92: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1414:
+		.instances = &I915_PW_INSTANCES(

-:100: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#100: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1422:
+		.instances = &I915_PW_INSTANCES(

-:108: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#108: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1430:
+		.instances = &I915_PW_INSTANCES(

-:116: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#116: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1438:
+		.instances = &I915_PW_INSTANCES(

-:124: CHECK:OPEN_ENDED_LINE: Lines should not end with a '('
#124: FILE: drivers/gpu/drm/i915/display/intel_display_power_map.c:1446:
+		.instances = &I915_PW_INSTANCES(

total: 1 errors, 0 warnings, 13 checks, 248 lines checked
c1cb574e296d drm/i915/mtl: Add DP AUX support on TypeC ports
d63d057f6a74 drm/i915/mtl: Obtain SAGV values from MMIO instead of GT pcode mailbox
677c09187b3e drm/i915/mtl: Update MBUS_DBOX credits
-:9: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#9: 
Display version 14 platforms have different credits values compared to ADL-P.

total: 0 errors, 1 warnings, 0 checks, 91 lines checked
2906aacc7099 drm/i915/mtl: Update CHICKEN_TRANS* register addresses
-:7: WARNING:COMMIT_LOG_LONG_LINE: Possible unwrapped commit description (prefer a maximum 75 chars per line)
#7: 
In Display version 14, Transcoder Chicken Registers are moved from DPRZ to DRPOS

total: 0 errors, 1 warnings, 0 checks, 103 lines checked
0836ca36ec95 drm/i915/mtl: Do not update GV point, mask value

[Intel-gfx] ✗ Fi.CI.SPARSE: warning for Initial Meteorlake Support (rev4)

[Patchwork]

== Series Details ==

Series: Initial Meteorlake Support (rev4)
URL   : https://patchwork.freedesktop.org/series/106786/
State : warning

== Summary ==

Error: dim sparse failed
Sparse version: v0.6.2
Fast mode used, each commit won't be checked separately.

[Intel-gfx] ✗ Fi.CI.BAT: failure for Initial Meteorlake Support (rev4)

[Patchwork]

[-- Attachment #1: Type: text/plain, Size: 6060 bytes --]

== Series Details ==

Series: Initial Meteorlake Support (rev4)
URL   : https://patchwork.freedesktop.org/series/106786/
State : failure

== Summary ==

CI Bug Log - changes from CI_DRM_12058 -> Patchwork_106786v4
====================================================

Summary
-------

  **FAILURE**

  Serious unknown changes coming with Patchwork_106786v4 absolutely need to be
  verified manually.
  
  If you think the reported changes have nothing to do with the changes
  introduced in Patchwork_106786v4, please notify your bug team to allow them
  to document this new failure mode, which will reduce false positives in CI.

  External URL: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/index.html

Participating hosts (37 -> 35)
------------------------------

  Missing    (2): fi-hsw-4770 fi-bdw-samus 

Possible new issues
-------------------

  Here are the unknown changes that may have been introduced in Patchwork_106786v4:

### IGT changes ###

#### Possible regressions ####

  * igt@gem_exec_suspend@basic-s0@smem:
    - fi-skl-6600u:       [PASS][1] -> [INCOMPLETE][2]
   [1]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12058/fi-skl-6600u/igt@gem_exec_suspend@basic-s0@smem.html
   [2]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-skl-6600u/igt@gem_exec_suspend@basic-s0@smem.html

  
Known issues
------------

  Here are the changes found in Patchwork_106786v4 that come from known issues:

### IGT changes ###

#### Issues hit ####

  * igt@i915_selftest@live@requests:
    - fi-pnv-d510:        [PASS][3] -> [DMESG-FAIL][4] ([i915#4528])
   [3]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12058/fi-pnv-d510/igt@i915_selftest@live@requests.html
   [4]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-pnv-d510/igt@i915_selftest@live@requests.html

  * igt@i915_suspend@basic-s3-without-i915:
    - fi-rkl-11600:       [PASS][5] -> [INCOMPLETE][6] ([i915#5982])
   [5]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12058/fi-rkl-11600/igt@i915_suspend@basic-s3-without-i915.html
   [6]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-rkl-11600/igt@i915_suspend@basic-s3-without-i915.html

  * igt@kms_chamelium@common-hpd-after-suspend:
    - fi-hsw-g3258:       NOTRUN -> [SKIP][7] ([fdo#109271] / [fdo#111827])
   [7]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-hsw-g3258/igt@kms_chamelium@common-hpd-after-suspend.html

  * igt@runner@aborted:
    - fi-pnv-d510:        NOTRUN -> [FAIL][8] ([fdo#109271] / [i915#2403] / [i915#4312])
   [8]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-pnv-d510/igt@runner@aborted.html

  
#### Possible fixes ####

  * igt@gem_exec_suspend@basic-s0@smem:
    - {bat-rplp-1}:       [DMESG-WARN][9] ([i915#2867]) -> [PASS][10]
   [9]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12058/bat-rplp-1/igt@gem_exec_suspend@basic-s0@smem.html
   [10]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/bat-rplp-1/igt@gem_exec_suspend@basic-s0@smem.html

  * igt@i915_selftest@live@hangcheck:
    - fi-hsw-g3258:       [INCOMPLETE][11] ([i915#3303] / [i915#4785]) -> [PASS][12]
   [11]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12058/fi-hsw-g3258/igt@i915_selftest@live@hangcheck.html
   [12]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-hsw-g3258/igt@i915_selftest@live@hangcheck.html

  * igt@kms_cursor_legacy@basic-busy-flip-before-cursor@atomic-transitions:
    - fi-bsw-kefka:       [FAIL][13] ([i915#6298]) -> [PASS][14]
   [13]: https://intel-gfx-ci.01.org/tree/drm-tip/CI_DRM_12058/fi-bsw-kefka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor@atomic-transitions.html
   [14]: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/fi-bsw-kefka/igt@kms_cursor_legacy@basic-busy-flip-before-cursor@atomic-transitions.html

  
  {name}: This element is suppressed. This means it is ignored when computing
          the status of the difference (SUCCESS, WARNING, or FAILURE).

  [fdo#109271]: https://bugs.freedesktop.org/show_bug.cgi?id=109271
  [fdo#111827]: https://bugs.freedesktop.org/show_bug.cgi?id=111827
  [i915#2403]: https://gitlab.freedesktop.org/drm/intel/issues/2403
  [i915#2867]: https://gitlab.freedesktop.org/drm/intel/issues/2867
  [i915#3303]: https://gitlab.freedesktop.org/drm/intel/issues/3303
  [i915#4312]: https://gitlab.freedesktop.org/drm/intel/issues/4312
  [i915#4528]: https://gitlab.freedesktop.org/drm/intel/issues/4528
  [i915#4785]: https://gitlab.freedesktop.org/drm/intel/issues/4785
  [i915#5982]: https://gitlab.freedesktop.org/drm/intel/issues/5982
  [i915#6257]: https://gitlab.freedesktop.org/drm/intel/issues/6257
  [i915#6298]: https://gitlab.freedesktop.org/drm/intel/issues/6298
  [i915#6380]: https://gitlab.freedesktop.org/drm/intel/issues/6380


Build changes
-------------

  * Linux: CI_DRM_12058 -> Patchwork_106786v4

  CI-20190529: 20190529
  CI_DRM_12058: 2ef8278465adc6572e0d22dffbaa332d56b4b40c @ git://anongit.freedesktop.org/gfx-ci/linux
  IGT_6639: ba61c48dba71d5597d7297a07dc3e307665f961b @ https://gitlab.freedesktop.org/drm/igt-gpu-tools.git
  Patchwork_106786v4: 2ef8278465adc6572e0d22dffbaa332d56b4b40c @ git://anongit.freedesktop.org/gfx-ci/linux


### Linux commits

e70b8265f1ca drm/i915/mtl: Do not update GV point, mask value
5e1456d11c65 drm/i915/mtl: Update CHICKEN_TRANS* register addresses
09101a330f99 drm/i915/mtl: Update MBUS_DBOX credits
5a9e79daf441 drm/i915/mtl: Obtain SAGV values from MMIO instead of GT pcode mailbox
21a1ea4c5810 drm/i915/mtl: Add DP AUX support on TypeC ports
02c74488bb2d drm/i915/mtl: Add display power wells
40867c9c89c1 drm/i915/mtl: Add gmbus and gpio support
adc2c3084fdf drm/i915/mtl: Define engine context layouts
d82173708641 drm/i915: Parse and set stepping for platforms with GMD
dab36cccd007 drm/i915: Read graphics/media/display arch version from hw
1bf49323bcbc drm/i915: Move display and media IP version to runtime info

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_106786v4/index.html

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