On Wed, 21 Oct 2015, Jani Nikula <[email protected]> wrote:
> On Wed, 21 Oct 2015, Daniel Vetter <[email protected]> wrote:
>> On Tue, Oct 20, 2015 at 03:38:33PM +0300, Jani Nikula wrote:
>>> Have only one if ladder for platforms and only one range check for
>>> size. Makes it easier to handle new platforms. Remove the use of
>>> negative return values in char, which might underflow to be positive for
>>> some negative error codes.
>>>
>>> Signed-off-by: Jani Nikula <[email protected]>
>>
>> On the series: Reviewed-by: Daniel Vetter <[email protected]>
>
> Apparently this conflicts with some other firmware patches. I'll let
> Imre decide if we should give them priority, or just merge these.
Imre gave the green light, series pushed to drm-intel-next-queued,
thanks for the review.
BR,
Jani.
>
> BR,
> Jani.
>
>
>>
>>> ---
>>> drivers/gpu/drm/i915/intel_csr.c | 46
>>> ++++++++++++++++++++--------------------
>>> 1 file changed, 23 insertions(+), 23 deletions(-)
>>>
>>> diff --git a/drivers/gpu/drm/i915/intel_csr.c
>>> b/drivers/gpu/drm/i915/intel_csr.c
>>> index fe9a55cf8212..3e7953254803 100644
>>> --- a/drivers/gpu/drm/i915/intel_csr.c
>>> +++ b/drivers/gpu/drm/i915/intel_csr.c
>>> @@ -188,28 +188,25 @@ static const struct stepping_info bxt_stepping_info[]
>>> = {
>>> {'B', '0'}, {'B', '1'}, {'B', '2'}
>>> };
>>>
>>> -static char intel_get_stepping(struct drm_device *dev)
>>> +static const struct stepping_info *intel_get_stepping_info(struct
>>> drm_device *dev)
>>> {
>>> - if (IS_SKYLAKE(dev) && (dev->pdev->revision <
>>> - ARRAY_SIZE(skl_stepping_info)))
>>> - return skl_stepping_info[dev->pdev->revision].stepping;
>>> - else if (IS_BROXTON(dev) && (dev->pdev->revision <
>>> - ARRAY_SIZE(bxt_stepping_info)))
>>> - return bxt_stepping_info[dev->pdev->revision].stepping;
>>> - else
>>> - return -ENODATA;
>>> -}
>>> + const struct stepping_info *si;
>>> + unsigned int size;
>>> +
>>> + if (IS_SKYLAKE(dev)) {
>>> + size = ARRAY_SIZE(skl_stepping_info);
>>> + si = skl_stepping_info;
>>> + } else if (IS_BROXTON(dev)) {
>>> + size = ARRAY_SIZE(bxt_stepping_info);
>>> + si = bxt_stepping_info;
>>> + } else {
>>> + return NULL;
>>> + }
>>>
>>> -static char intel_get_substepping(struct drm_device *dev)
>>> -{
>>> - if (IS_SKYLAKE(dev) && (dev->pdev->revision <
>>> - ARRAY_SIZE(skl_stepping_info)))
>>> - return skl_stepping_info[dev->pdev->revision].substepping;
>>> - else if (IS_BROXTON(dev) && (dev->pdev->revision <
>>> - ARRAY_SIZE(bxt_stepping_info)))
>>> - return bxt_stepping_info[dev->pdev->revision].substepping;
>>> - else
>>> - return -ENODATA;
>>> + if (INTEL_REVID(dev) < size)
>>> + return si + INTEL_REVID(dev);
>>> +
>>> + return NULL;
>>> }
>>>
>>> /**
>>> @@ -296,8 +293,8 @@ static void finish_csr_load(const struct firmware *fw,
>>> void *context)
>>> struct intel_package_header *package_header;
>>> struct intel_dmc_header *dmc_header;
>>> struct intel_csr *csr = &dev_priv->csr;
>>> - char stepping = intel_get_stepping(dev);
>>> - char substepping = intel_get_substepping(dev);
>>> + const struct stepping_info *stepping_info =
>>> intel_get_stepping_info(dev);
>>> + char stepping, substepping;
>>> uint32_t dmc_offset = CSR_DEFAULT_FW_OFFSET, readcount = 0, nbytes;
>>> uint32_t i;
>>> uint32_t *dmc_payload;
>>> @@ -308,11 +305,14 @@ static void finish_csr_load(const struct firmware
>>> *fw, void *context)
>>> goto out;
>>> }
>>>
>>> - if ((stepping == -ENODATA) || (substepping == -ENODATA)) {
>>> + if (!stepping_info) {
>>> DRM_ERROR("Unknown stepping info, firmware loading failed\n");
>>> goto out;
>>> }
>>>
>>> + stepping = stepping_info->stepping;
>>> + substepping = stepping_info->substepping;
>>> +
>>> /* Extract CSS Header information*/
>>> css_header = (struct intel_css_header *)fw->data;
>>> if (sizeof(struct intel_css_header) !=
>>> --
>>> 2.1.4
>>>
>>> _______________________________________________
>>> Intel-gfx mailing list
>>> [email protected]
>>> http://lists.freedesktop.org/mailman/listinfo/intel-gfx
>>
>> --
>> Daniel Vetter
>> Software Engineer, Intel Corporation
>> http://blog.ffwll.ch
--
Jani Nikula, Intel Open Source Technology Center
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