[Mesa-dev] [Intel-gfx] [PATCH 1/2] drm/i915/kbl: Remove unused Kabylake pci ids

[Anuj Phogat]

On Mon, Sep 11, 2017 at 10:10 AM, Rodrigo Vivi <rodrigo.vivi at intel.com> wrote:
> On Mon, Sep 11, 2017 at 04:11:33PM +0000, Anuj Phogat wrote:
>> See Mesa commits: ebc5ccf and b2dae9f
>
> I believe we need to be in sync between multiple gfx stack components,
> but I  don't believe we should remove ids.
>
> In the past we had cases where we noticed a product group using a listed
> id to do a product and we just noticed the id after a user reported at fd.o.
>
> For us in kernel the cycle until that id gets into a stable release
> propagated to OSVs distros can be a bit long.
>
> Also Xserver ids are nowadays in sync with Mesa ones and I believe some
> OSVs might take a while to upgrade the Xserver as well in case of a new
> found product with some "new" id.
>
> For this reason I was always in favor of adding all possible reserved ids from the
> beginning.
>
> And this approach worked well on BDW and SKL, where we've seeing later some
> reserved ids becoming real product and we didn't have to do any extra step.
>
> For this same reason I believe the right solution is to
> add those ids back to mesa instead of removing from kernel and libdrm.
>
I'm fine with keeping the unused pci id's in Mesa tree and keep it uniform
across multiple gfx stack components. I'll revert the Mesa patch.

> Thanks,
> Rodrigo.
>
>>
>> Cc: Matt Turner <mattst88 at gmail.com>
>> Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
>> Signed-off-by: Anuj Phogat <anuj.phogat at gmail.com>
>> ---
>>  drivers/gpu/drm/i915/i915_pci.c |  1 -
>>  include/drm/i915_pciids.h       | 15 ++-------------
>>  2 files changed, 2 insertions(+), 14 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
>> index 129877b..ecf6d4c 100644
>> --- a/drivers/gpu/drm/i915/i915_pci.c
>> +++ b/drivers/gpu/drm/i915/i915_pci.c
>> @@ -613,7 +613,6 @@ static const struct pci_device_id pciidlist[] = {
>>       INTEL_KBL_GT1_IDS(&intel_kabylake_gt1_info),
>>       INTEL_KBL_GT2_IDS(&intel_kabylake_gt2_info),
>>       INTEL_KBL_GT3_IDS(&intel_kabylake_gt3_info),
>> -     INTEL_KBL_GT4_IDS(&intel_kabylake_gt3_info),
>>       INTEL_CFL_S_GT1_IDS(&intel_coffeelake_gt1_info),
>>       INTEL_CFL_S_GT2_IDS(&intel_coffeelake_gt2_info),
>>       INTEL_CFL_H_GT2_IDS(&intel_coffeelake_gt2_info),
>> diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
>> index 1257e15..a1bf90e 100644
>> --- a/include/drm/i915_pciids.h
>> +++ b/include/drm/i915_pciids.h
>> @@ -337,15 +337,10 @@
>>       INTEL_VGA_DEVICE(0x3185, info)
>>
>>  #define INTEL_KBL_GT1_IDS(info)      \
>> -     INTEL_VGA_DEVICE(0x5913, info), /* ULT GT1.5 */ \
>> -     INTEL_VGA_DEVICE(0x5915, info), /* ULX GT1.5 */ \
>>       INTEL_VGA_DEVICE(0x5917, info), /* DT  GT1.5 */ \
>>       INTEL_VGA_DEVICE(0x5906, info), /* ULT GT1 */ \
>> -     INTEL_VGA_DEVICE(0x590E, info), /* ULX GT1 */ \
>>       INTEL_VGA_DEVICE(0x5902, info), /* DT  GT1 */ \
>> -     INTEL_VGA_DEVICE(0x5908, info), /* Halo GT1 */ \
>> -     INTEL_VGA_DEVICE(0x590B, info), /* Halo GT1 */ \
>> -     INTEL_VGA_DEVICE(0x590A, info) /* SRV GT1 */
>> +     INTEL_VGA_DEVICE(0x590B, info)  /* Halo GT1 */
>>
>>  #define INTEL_KBL_GT2_IDS(info)      \
>>       INTEL_VGA_DEVICE(0x5916, info), /* ULT GT2 */ \
>> @@ -353,22 +348,16 @@
>>       INTEL_VGA_DEVICE(0x591E, info), /* ULX GT2 */ \
>>       INTEL_VGA_DEVICE(0x5912, info), /* DT  GT2 */ \
>>       INTEL_VGA_DEVICE(0x591B, info), /* Halo GT2 */ \
>> -     INTEL_VGA_DEVICE(0x591A, info), /* SRV GT2 */ \
>>       INTEL_VGA_DEVICE(0x591D, info) /* WKS GT2 */
>>
>>  #define INTEL_KBL_GT3_IDS(info) \
>> -     INTEL_VGA_DEVICE(0x5923, info), /* ULT GT3 */ \
>>       INTEL_VGA_DEVICE(0x5926, info), /* ULT GT3 */ \
>>       INTEL_VGA_DEVICE(0x5927, info) /* ULT GT3 */
>>
>> -#define INTEL_KBL_GT4_IDS(info) \
>> -     INTEL_VGA_DEVICE(0x593B, info) /* Halo GT4 */
>> -
>>  #define INTEL_KBL_IDS(info) \
>>       INTEL_KBL_GT1_IDS(info), \
>>       INTEL_KBL_GT2_IDS(info), \
>> -     INTEL_KBL_GT3_IDS(info), \
>> -     INTEL_KBL_GT4_IDS(info)
>> +     INTEL_KBL_GT3_IDS(info)
>>
>>  /* CFL S */
>>  #define INTEL_CFL_S_GT1_IDS(info) \
>> --
>> 2.9.4
>>
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