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: [v4 2/4] drm/msm/a6xx: Add gmu_read64() register read op
Date: Thu, 4 Oct 2018 15:11:41 +0530 [thread overview]
Message-ID: <1538646103-27445-3-git-send-email-smasetty@codeaurora.org> (raw)
In-Reply-To: <1538646103-27445-1-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 ad3bc5a..f34630c 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h
@@ -98,6 +98,16 @@ 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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next prev parent reply other threads:[~2018-10-04 9:41 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-10-04 9:41 [v4 0/4] msm/drm: a6xx DCVS series Sharat Masetty
2018-10-04 9:41 ` [v4 3/4] drm/msm: re-factor devfreq code Sharat Masetty
[not found] ` <1538646103-27445-1-git-send-email-smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-10-04 9:41 ` [v4 1/4] drm/msm: suspend devfreq on init Sharat Masetty
2018-10-04 9:41 ` Sharat Masetty [this message]
2018-10-04 9:41 ` [v4 4/4] drm/msm/a6xx: Add devfreq support for a6xx Sharat Masetty
[not found] ` <1538646103-27445-5-git-send-email-smasetty-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-10-04 14:52 ` Jordan Crouse
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