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From: Sharat Masetty <smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
	Sharat Masetty <smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Subject: [PATCH v2 3/5] drm/msm/A6xx: Add gmu_read64() register read op
Date: Mon, 27 Aug 2018 12:47:18 +0530	[thread overview]
Message-ID: <1535354240-24805-4-git-send-email-smasetty@codeaurora.org> (raw)
In-Reply-To: <1535354240-24805-1-git-send-email-smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

Add a simple function to read 64 registers in the GMU domain

Signed-off-by: Sharat Masetty <smasetty@codeaurora.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
index a08ee8f..09fd3a7 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
@@ -106,6 +106,16 @@ static inline void gmu_rmw(struct a6xx_gmu *gmu, u32 reg, u32 mask, u32 or)
 	gmu_write(gmu, reg, val | or);
 }
 
+static inline u64 gmu_read64(struct a6xx_gmu *gmu, u32 lo, u32 hi)
+{
+	u64 val;
+
+	val = (u64) msm_readl(gmu->mmio + (lo << 2));
+	val |= ((u64) msm_readl(gmu->mmio + (hi << 2)) << 32);
+
+	return val;
+}
+
 #define gmu_poll_timeout(gmu, addr, val, cond, interval, timeout) \
 	readl_poll_timeout((gmu)->mmio + ((addr) << 2), val, cond, \
 		interval, timeout)
-- 
1.9.1

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  parent reply	other threads:[~2018-08-27  7:17 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-08-27  7:17 [PATCH v2 0/5] msm/drm: A6xx DCVS series Sharat Masetty
2018-08-27  7:17 ` [PATCH v2 1/5] drm/msm: suspend devfreq on init Sharat Masetty
     [not found] ` <1535354240-24805-1-git-send-email-smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-08-27  7:17   ` [PATCH v2 2/5] drm/msm: unregister devfreq upon clean up Sharat Masetty
     [not found]     ` <1535354240-24805-3-git-send-email-smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-08-27 15:27       ` Jordan Crouse
2018-08-27  7:17   ` Sharat Masetty [this message]
2018-08-27  7:17   ` [PATCH v2 4/5] drm/msm: re-factor devfreq code Sharat Masetty
2018-08-27 15:30     ` Jordan Crouse
2018-08-27  7:17   ` [PATCH v2 5/5] drm/msm/A6xx: Add devfreq support for A6xx Sharat Masetty
     [not found]     ` <1535354240-24805-6-git-send-email-smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-08-27 15:34       ` Jordan Crouse

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