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Lin" , Singo Chang , Nancy Lin , Shawn Sung , , , , Subject: [RESEND, PATCH 1/5] soc: mediatek: mtk-cmdq: Add specific purpose register definitions for GCE Date: Fri, 1 Mar 2024 22:43:59 +0800 Message-ID: <20240301144403.2977-2-jason-jh.lin@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20240301144403.2977-1-jason-jh.lin@mediatek.com> References: <20240301144403.2977-1-jason-jh.lin@mediatek.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MTK: N Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Add specific purpose register definitions for GCE, so CMDQ users can use them as a buffer to store data. Signed-off-by: Jason-JH.Lin --- include/linux/soc/mediatek/mtk-cmdq.h | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/medi= atek/mtk-cmdq.h index 649955d2cf5c..1dae80185f9f 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -14,6 +14,15 @@ #define CMDQ_ADDR_HIGH(addr) ((u32)(((addr) >> 16) & GENMASK(31, 0))) #define CMDQ_ADDR_LOW(addr) ((u16)(addr) | BIT(1)) =20 +/* + * Every cmdq thread has its own SPRs (Specific Purpose Registers), + * so there are 4 * N (threads) SPRs in GCE that shares the same indexes b= elow. + */ +#define CMDQ_THR_SPR_IDX0 (0) +#define CMDQ_THR_SPR_IDX1 (1) +#define CMDQ_THR_SPR_IDX2 (2) +#define CMDQ_THR_SPR_IDX3 (3) + struct cmdq_pkt; =20 struct cmdq_client_reg { --=20 2.18.0