AMD-GFX Archive on lore.kernel.org
 help / color / Atom feed
* [PATCH] drm/radeon: fix fb_div check in ni_init_smc_spll_table()
@ 2020-06-22 20:31 Denis Efremov
  2020-06-23 16:51 ` Alex Deucher
  0 siblings, 1 reply; 2+ messages in thread
From: Denis Efremov @ 2020-06-22 20:31 UTC (permalink / raw)
  To: Alex Deucher, Christian König
  Cc: stable, dri-devel, amd-gfx, Denis Efremov, linux-kernel

clk_s is checked twice in a row in ni_init_smc_spll_table().
fb_div should be checked instead.

Fixes: 69e0b57a91ad ("drm/radeon/kms: add dpm support for cayman (v5)")
Cc: stable@vger.kernel.org
Signed-off-by: Denis Efremov <efremov@linux.com>
---
 drivers/gpu/drm/radeon/ni_dpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index b57c37ddd164..c7fbb7932f37 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -2127,7 +2127,7 @@ static int ni_init_smc_spll_table(struct radeon_device *rdev)
 		if (clk_s & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_SHIFT))
 			ret = -EINVAL;
 
-		if (clk_s & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_SHIFT))
+		if (fb_div & ~(SMC_NISLANDS_SPLL_DIV_TABLE_FBDIV_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_FBDIV_SHIFT))
 			ret = -EINVAL;
 
 		if (clk_v & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKV_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKV_SHIFT))
-- 
2.26.2

_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH] drm/radeon: fix fb_div check in ni_init_smc_spll_table()
  2020-06-22 20:31 [PATCH] drm/radeon: fix fb_div check in ni_init_smc_spll_table() Denis Efremov
@ 2020-06-23 16:51 ` Alex Deucher
  0 siblings, 0 replies; 2+ messages in thread
From: Alex Deucher @ 2020-06-23 16:51 UTC (permalink / raw)
  To: Denis Efremov
  Cc: LKML, Maling list - DRI developers, amd-gfx list, Alex Deucher,
	for 3.8, Christian König

On Mon, Jun 22, 2020 at 5:56 PM Denis Efremov <efremov@linux.com> wrote:
>
> clk_s is checked twice in a row in ni_init_smc_spll_table().
> fb_div should be checked instead.
>
> Fixes: 69e0b57a91ad ("drm/radeon/kms: add dpm support for cayman (v5)")
> Cc: stable@vger.kernel.org
> Signed-off-by: Denis Efremov <efremov@linux.com>

Applied.  Thanks!

Alex

> ---
>  drivers/gpu/drm/radeon/ni_dpm.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
> index b57c37ddd164..c7fbb7932f37 100644
> --- a/drivers/gpu/drm/radeon/ni_dpm.c
> +++ b/drivers/gpu/drm/radeon/ni_dpm.c
> @@ -2127,7 +2127,7 @@ static int ni_init_smc_spll_table(struct radeon_device *rdev)
>                 if (clk_s & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_SHIFT))
>                         ret = -EINVAL;
>
> -               if (clk_s & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKS_SHIFT))
> +               if (fb_div & ~(SMC_NISLANDS_SPLL_DIV_TABLE_FBDIV_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_FBDIV_SHIFT))
>                         ret = -EINVAL;
>
>                 if (clk_v & ~(SMC_NISLANDS_SPLL_DIV_TABLE_CLKV_MASK >> SMC_NISLANDS_SPLL_DIV_TABLE_CLKV_SHIFT))
> --
> 2.26.2
>
> _______________________________________________
> amd-gfx mailing list
> amd-gfx@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/amd-gfx
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx

^ permalink raw reply	[flat|nested] 2+ messages in thread

end of thread, back to index

Thread overview: 2+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-06-22 20:31 [PATCH] drm/radeon: fix fb_div check in ni_init_smc_spll_table() Denis Efremov
2020-06-23 16:51 ` Alex Deucher

AMD-GFX Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/amd-gfx/0 amd-gfx/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 amd-gfx amd-gfx/ https://lore.kernel.org/amd-gfx \
		amd-gfx@lists.freedesktop.org
	public-inbox-index amd-gfx

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.freedesktop.lists.amd-gfx


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git