| Message ID | 1535015911-2040-4-git-send-email-smasetty@codeaurora.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | msm/drm: A6x DCVS series | expand |
On Thu, Aug 23, 2018 at 02:48:29PM +0530, Sharat Masetty wrote: > 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 | 13 +++++++++++++ > 1 file changed, 13 insertions(+) > > diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h > index a08ee8f..f9e4dfe 100644 > --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h > +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h > @@ -106,6 +106,19 @@ 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; > + > + /* > + * Implementation similar to gpu_read64() > + */ I'm not sure this comment is really needed, and it certainly could just be one line if it is. > + 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 >
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h index a08ee8f..f9e4dfe 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.h +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.h @@ -106,6 +106,19 @@ 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; + + /* + * Implementation similar to gpu_read64() + */ + 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)
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 | 13 +++++++++++++ 1 file changed, 13 insertions(+)