From: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
To: Matthew Brost <matthew.brost@intel.com>,
intel-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org
Cc: john.c.harrison@intel.com, Michal.Wajdeczko@intel.com
Subject: Re: [PATCH 01/13] drm/i915/guc: Introduce unified HXG messages
Date: Mon, 14 Jun 2021 10:04:26 -0700 [thread overview]
Message-ID: <8c17827d-69e6-99b6-d063-1f6fcd16aa9a@intel.com> (raw)
In-Reply-To: <20210610043649.144416-2-matthew.brost@intel.com>
On 6/9/2021 9:36 PM, Matthew Brost wrote:
> From: Michal Wajdeczko <michal.wajdeczko@intel.com>
>
> New GuC firmware will unify format of MMIO and CTB H2G messages.
> Introduce their definitions now to allow gradual transition of
> our code to match new changes.
>
> Signed-off-by: Matthew Brost <matthew.brost@intel.com>
> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
> Cc: Michał Winiarski <michal.winiarski@intel.com>
> ---
> .../gpu/drm/i915/gt/uc/abi/guc_messages_abi.h | 213 ++++++++++++++++++
> 1 file changed, 213 insertions(+)
>
> diff --git a/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h b/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
> index 775e21f3058c..29ac823acd4c 100644
> --- a/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
> +++ b/drivers/gpu/drm/i915/gt/uc/abi/guc_messages_abi.h
> @@ -6,6 +6,219 @@
> #ifndef _ABI_GUC_MESSAGES_ABI_H
> #define _ABI_GUC_MESSAGES_ABI_H
>
> +/**
> + * DOC: HXG Message
> + *
> + * All messages exchanged with GuC are defined using 32 bit dwords.
> + * First dword is treated as a message header. Remaining dwords are optional.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | | | |
> + * | 0 | 31 | **ORIGIN** - originator of the message |
> + * | | | - _`GUC_HXG_ORIGIN_HOST` = 0 |
> + * | | | - _`GUC_HXG_ORIGIN_GUC` = 1 |
> + * | | | |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | **TYPE** - message type |
> + * | | | - _`GUC_HXG_TYPE_REQUEST` = 0 |
> + * | | | - _`GUC_HXG_TYPE_EVENT` = 1 |
> + * | | | - _`GUC_HXG_TYPE_NO_RESPONSE_BUSY` = 3 |
> + * | | | - _`GUC_HXG_TYPE_NO_RESPONSE_RETRY` = 5 |
> + * | | | - _`GUC_HXG_TYPE_RESPONSE_FAILURE` = 6 |
> + * | | | - _`GUC_HXG_TYPE_RESPONSE_SUCCESS` = 7 |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:0 | **AUX** - auxiliary data (depends on TYPE) |
> + * +---+-------+--------------------------------------------------------------+
> + * | 1 | 31:0 | |
> + * +---+-------+ |
> + * |...| | **PAYLOAD** - optional payload (depends on TYPE) |
> + * +---+-------+ |
> + * | n | 31:0 | |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_MSG_MIN_LEN 1u
> +#define GUC_HXG_MSG_0_ORIGIN (0x1 << 31)
> +#define GUC_HXG_ORIGIN_HOST 0u
> +#define GUC_HXG_ORIGIN_GUC 1u
> +#define GUC_HXG_MSG_0_TYPE (0x7 << 28)
> +#define GUC_HXG_TYPE_REQUEST 0u
> +#define GUC_HXG_TYPE_EVENT 1u
> +#define GUC_HXG_TYPE_NO_RESPONSE_BUSY 3u
> +#define GUC_HXG_TYPE_NO_RESPONSE_RETRY 5u
> +#define GUC_HXG_TYPE_RESPONSE_FAILURE 6u
> +#define GUC_HXG_TYPE_RESPONSE_SUCCESS 7u
> +#define GUC_HXG_MSG_0_AUX (0xfffffff << 0)
> +#define GUC_HXG_MSG_n_PAYLOAD (0xffffffff << 0)
> +
> +/**
> + * DOC: HXG Request
> + *
> + * The `HXG Request`_ message should be used to initiate synchronous activity
> + * for which confirmation or return data is expected.
> + *
> + * The recipient of this message shall use `HXG Response`_, `HXG Failure`_
> + * or `HXG Retry`_ message as a definite reply, and may use `HXG Busy`_
> + * message as a intermediate reply.
> + *
> + * Format of @DATA0 and all @DATAn fields depends on the @ACTION code.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | 0 | 31 | ORIGIN |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | TYPE = GUC_HXG_TYPE_REQUEST_ |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:16 | **DATA0** - request data (depends on ACTION) |
> + * | +-------+--------------------------------------------------------------+
> + * | | 15:0 | **ACTION** - requested action code |
> + * +---+-------+--------------------------------------------------------------+
> + * | 1 | 31:0 | |
> + * +---+-------+ |
> + * |...| | **DATAn** - optional data (depends on ACTION) |
> + * +---+-------+ |
> + * | n | 31:0 | |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_REQUEST_MSG_MIN_LEN GUC_HXG_MSG_MIN_LEN
> +#define GUC_HXG_REQUEST_MSG_0_DATA0 (0xfff << 16)
> +#define GUC_HXG_REQUEST_MSG_0_ACTION (0xffff << 0)
> +#define GUC_HXG_REQUEST_MSG_n_DATAn GUC_HXG_MSG_n_PAYLOAD
> +
> +/**
> + * DOC: HXG Event
> + *
> + * The `HXG Event`_ message should be used to initiate asynchronous activity
> + * that does not involves immediate confirmation nor data.
> + *
> + * Format of @DATA0 and all @DATAn fields depends on the @ACTION code.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | 0 | 31 | ORIGIN |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | TYPE = GUC_HXG_TYPE_EVENT_ |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:16 | **DATA0** - event data (depends on ACTION) |
> + * | +-------+--------------------------------------------------------------+
> + * | | 15:0 | **ACTION** - event action code |
> + * +---+-------+--------------------------------------------------------------+
> + * | 1 | 31:0 | |
> + * +---+-------+ |
> + * |...| | **DATAn** - optional event data (depends on ACTION) |
> + * +---+-------+ |
> + * | n | 31:0 | |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_EVENT_MSG_MIN_LEN GUC_HXG_MSG_MIN_LEN
> +#define GUC_HXG_EVENT_MSG_0_DATA0 (0xfff << 16)
> +#define GUC_HXG_EVENT_MSG_0_ACTION (0xffff << 0)
> +#define GUC_HXG_EVENT_MSG_n_DATAn GUC_HXG_MSG_n_PAYLOAD
> +
> +/**
> + * DOC: HXG Busy
> + *
> + * The `HXG Busy`_ message may be used to acknowledge reception of the `HXG Request`_
> + * message if the recipient expects that it processing will be longer than default
> + * timeout.
> + *
> + * The @COUNTER field may be used as a progress indicator.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | 0 | 31 | ORIGIN |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | TYPE = GUC_HXG_TYPE_NO_RESPONSE_BUSY_ |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:0 | **COUNTER** - progress indicator |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_BUSY_MSG_LEN GUC_HXG_MSG_MIN_LEN
> +#define GUC_HXG_BUSY_MSG_0_COUNTER GUC_HXG_MSG_0_AUX
> +
> +/**
> + * DOC: HXG Retry
> + *
> + * The `HXG Retry`_ message should be used by recipient to indicate that the
> + * `HXG Request`_ message was dropped and it should be resent again.
> + *
> + * The @REASON field may be used to provide additional information.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | 0 | 31 | ORIGIN |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | TYPE = GUC_HXG_TYPE_NO_RESPONSE_RETRY_ |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:0 | **REASON** - reason for retry |
> + * | | | - _`GUC_HXG_RETRY_REASON_UNSPECIFIED` = 0 |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_RETRY_MSG_LEN GUC_HXG_MSG_MIN_LEN
> +#define GUC_HXG_RETRY_MSG_0_REASON GUC_HXG_MSG_0_AUX
> +#define GUC_HXG_RETRY_REASON_UNSPECIFIED 0u
I thought we had agreed to remove the entries that hadn't yet landed in
the official specs, i.e. the reason here? Not a blocker given that the
only defined cases matches the MBZ, but if you need to do another spin
better to remove it for now.
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Daniele
> +
> +/**
> + * DOC: HXG Failure
> + *
> + * The `HXG Failure`_ message shall be used as a reply to the `HXG Request`_
> + * message that could not be processed due to an error.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | 0 | 31 | ORIGIN |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_FAILURE_ |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:16 | **HINT** - additional error hint |
> + * | +-------+--------------------------------------------------------------+
> + * | | 15:0 | **ERROR** - error/result code |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_FAILURE_MSG_LEN GUC_HXG_MSG_MIN_LEN
> +#define GUC_HXG_FAILURE_MSG_0_HINT (0xfff << 16)
> +#define GUC_HXG_FAILURE_MSG_0_ERROR (0xffff << 0)
> +
> +/**
> + * DOC: HXG Response
> + *
> + * The `HXG Response`_ message shall be used as a reply to the `HXG Request`_
> + * message that was successfully processed without an error.
> + *
> + * +---+-------+--------------------------------------------------------------+
> + * | | Bits | Description |
> + * +===+=======+==============================================================+
> + * | 0 | 31 | ORIGIN |
> + * | +-------+--------------------------------------------------------------+
> + * | | 30:28 | TYPE = GUC_HXG_TYPE_RESPONSE_SUCCESS_ |
> + * | +-------+--------------------------------------------------------------+
> + * | | 27:0 | **DATA0** - data (depends on ACTION from `HXG Request`_) |
> + * +---+-------+--------------------------------------------------------------+
> + * | 1 | 31:0 | |
> + * +---+-------+ |
> + * |...| | **DATAn** - data (depends on ACTION from `HXG Request`_) |
> + * +---+-------+ |
> + * | n | 31:0 | |
> + * +---+-------+--------------------------------------------------------------+
> + */
> +
> +#define GUC_HXG_RESPONSE_MSG_MIN_LEN GUC_HXG_MSG_MIN_LEN
> +#define GUC_HXG_RESPONSE_MSG_0_DATA0 GUC_HXG_MSG_0_AUX
> +#define GUC_HXG_RESPONSE_MSG_n_DATAn GUC_HXG_MSG_n_PAYLOAD
> +
> +/* deprecated */
> #define INTEL_GUC_MSG_TYPE_SHIFT 28
> #define INTEL_GUC_MSG_TYPE_MASK (0xF << INTEL_GUC_MSG_TYPE_SHIFT)
> #define INTEL_GUC_MSG_DATA_SHIFT 16
next prev parent reply other threads:[~2021-06-14 17:04 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-10 4:36 [PATCH 00/13] Update firmware to v62.0.0 Matthew Brost
2021-06-10 4:16 ` [Intel-gfx] " Matthew Brost
2021-06-10 4:36 ` [PATCH 01/13] drm/i915/guc: Introduce unified HXG messages Matthew Brost
2021-06-14 17:04 ` Daniele Ceraolo Spurio [this message]
2021-06-10 4:36 ` [PATCH 02/13] drm/i915/guc: Update MMIO based communication Matthew Brost
2021-06-14 18:11 ` Daniele Ceraolo Spurio
2021-06-10 4:36 ` [PATCH 03/13] drm/i915/guc: Update CTB response status definition Matthew Brost
2021-06-10 4:36 ` [PATCH 04/13] drm/i915/guc: Support per context scheduling policies Matthew Brost
2021-06-10 4:36 ` [PATCH 05/13] drm/i915/guc: Add flag for mark broken CTB Matthew Brost
2021-06-10 4:36 ` [PATCH 06/13] drm/i915/guc: New definition of the CTB descriptor Matthew Brost
2021-06-14 18:17 ` Daniele Ceraolo Spurio
2021-06-10 4:36 ` [PATCH 07/13] drm/i915/guc: New definition of the CTB registration action Matthew Brost
2021-06-14 18:21 ` Daniele Ceraolo Spurio
2021-06-10 4:36 ` [PATCH 08/13] drm/i915/guc: New CTB based communication Matthew Brost
2021-06-14 18:24 ` Daniele Ceraolo Spurio
2021-06-10 4:36 ` [PATCH 09/13] drm/i915/doc: Include GuC ABI documentation Matthew Brost
2021-06-10 13:55 ` [Intel-gfx] " Piotr Piórkowski
2021-06-10 4:36 ` [PATCH 10/13] drm/i915/guc: Kill guc_clients.ct_pool Matthew Brost
2021-06-10 4:36 ` [PATCH 11/13] drm/i915/guc: Kill ads.client_info Matthew Brost
2021-06-10 4:36 ` [PATCH 12/13] drm/i915/guc: Unified GuC log Matthew Brost
2021-06-10 4:36 ` [PATCH 13/13] drm/i915/guc: Update firmware to v62.0.0 Matthew Brost
2021-06-10 13:35 ` [PATCH 00/13] " Michal Wajdeczko
2021-06-11 18:46 ` Matthew Brost
-- strict thread matches above, loose matches on Subject: below --
2021-06-07 18:03 Matthew Brost
2021-06-07 18:03 ` [PATCH 01/13] drm/i915/guc: Introduce unified HXG messages Matthew Brost
2021-06-07 22:46 ` Daniele Ceraolo Spurio
2021-06-08 7:59 ` Michal Wajdeczko
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