diff mbox

gpu: host1x: do not check previously handled gathers

Message ID 1389124986-32501-1-git-send-email-kusmabite@gmail.com
State Not Applicable, archived
Headers show

Commit Message

Erik Faye-Lund Jan. 7, 2014, 8:03 p.m. UTC
When patching gathers, we don't need to check against
gathers with lower indices than the current one, as
they are guaranteed to already have been handled.

Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
---

Here's a trivial optimization I have been running with for a while.

 drivers/gpu/host1x/job.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Erik Faye-Lund Jan. 23, 2014, 5:31 p.m. UTC | #1
Ping?

On Tue, Jan 7, 2014 at 9:03 PM, Erik Faye-Lund <kusmabite@gmail.com> wrote:
> When patching gathers, we don't need to check against
> gathers with lower indices than the current one, as
> they are guaranteed to already have been handled.
>
> Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
> ---
>
> Here's a trivial optimization I have been running with for a while.
>
>  drivers/gpu/host1x/job.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
> index de5ec33..e965805 100644
> --- a/drivers/gpu/host1x/job.c
> +++ b/drivers/gpu/host1x/job.c
> @@ -534,7 +534,7 @@ int host1x_job_pin(struct host1x_job *job, struct device *dev)
>
>                 g->base = job->gather_addr_phys[i];
>
> -               for (j = 0; j < job->num_gathers; j++)
> +               for (j = i + 1; j < job->num_gathers; j++)
>                         if (job->gathers[j].bo == g->bo)
>                                 job->gathers[j].handled = true;
>
> --
> 1.8.1.2
>
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Terje Bergstrom Jan. 30, 2014, 1:51 p.m. UTC | #2
On 07.01.2014 22:03, Erik Faye-Lund wrote:
> When patching gathers, we don't need to check against
> gathers with lower indices than the current one, as
> they are guaranteed to already have been handled.
> 
> Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
> ---
> 
> Here's a trivial optimization I have been running with for a while.
> 
>  drivers/gpu/host1x/job.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
> index de5ec33..e965805 100644
> --- a/drivers/gpu/host1x/job.c
> +++ b/drivers/gpu/host1x/job.c
> @@ -534,7 +534,7 @@ int host1x_job_pin(struct host1x_job *job, struct device *dev)
>  
>  		g->base = job->gather_addr_phys[i];
>  
> -		for (j = 0; j < job->num_gathers; j++)
> +		for (j = i + 1; j < job->num_gathers; j++)
>  			if (job->gathers[j].bo == g->bo)
>  				job->gathers[j].handled = true;
>  

Hi,

Thanks. This looks good logically, and I ran some tests that agree.

Acked-By: Terje Bergstrom <tbergstrom@nvidia.com>

Terje
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Thierry Reding Feb. 10, 2014, 1:10 p.m. UTC | #3
On Tue, Jan 07, 2014 at 09:03:06PM +0100, Erik Faye-Lund wrote:
> When patching gathers, we don't need to check against
> gathers with lower indices than the current one, as
> they are guaranteed to already have been handled.
> 
> Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
> ---
> 
> Here's a trivial optimization I have been running with for a while.
> 
>  drivers/gpu/host1x/job.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks!

Thierry
Thierry Reding Feb. 12, 2014, 10:18 a.m. UTC | #4
On Tue, Jan 07, 2014 at 09:03:06PM +0100, Erik Faye-Lund wrote:
> When patching gathers, we don't need to check against
> gathers with lower indices than the current one, as
> they are guaranteed to already have been handled.
> 
> Signed-off-by: Erik Faye-Lund <kusmabite@gmail.com>
> ---
> 
> Here's a trivial optimization I have been running with for a while.
> 
>  drivers/gpu/host1x/job.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks!

Thierry
diff mbox

Patch

diff --git a/drivers/gpu/host1x/job.c b/drivers/gpu/host1x/job.c
index de5ec33..e965805 100644
--- a/drivers/gpu/host1x/job.c
+++ b/drivers/gpu/host1x/job.c
@@ -534,7 +534,7 @@  int host1x_job_pin(struct host1x_job *job, struct device *dev)
 
 		g->base = job->gather_addr_phys[i];
 
-		for (j = 0; j < job->num_gathers; j++)
+		for (j = i + 1; j < job->num_gathers; j++)
 			if (job->gathers[j].bo == g->bo)
 				job->gathers[j].handled = true;