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SubjectRe: [PATCH 1/2] drm/i915/jsl: Split EHL/JSL platform info and PCI ids
Date
On Mon, 28 Sep 2020, Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com> wrote:
> Split the basic platform definition, macros, and PCI IDs to
> differentiate between EHL and JSL platforms.
>
> Signed-off-by: Tejas Upadhyay <tejaskumarx.surendrakumar.upadhyay@intel.com>
> ---
> drivers/gpu/drm/i915/i915_drv.h | 4 +++-
> drivers/gpu/drm/i915/i915_pci.c | 9 +++++++++
> drivers/gpu/drm/i915/intel_device_info.c | 1 +
> drivers/gpu/drm/i915/intel_device_info.h | 1 +
> include/drm/i915_pciids.h | 9 ++++++---
> 5 files changed, 20 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index 72a9449b674e..4f20acebb038 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -1417,7 +1417,9 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
> #define IS_COMETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_COMETLAKE)
> #define IS_CANNONLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_CANNONLAKE)
> #define IS_ICELAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ICELAKE)
> -#define IS_ELKHARTLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE)
> +#define IS_ELKHARTLAKE(dev_priv) (IS_PLATFORM(dev_priv, INTEL_ELKHARTLAKE) || \
> + IS_PLATFORM(dev_priv, INTEL_JASPERLAKE))
> +#define IS_JASPERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_JASPERLAKE)

I think we've learned from history that we want the platform checks to
be independent. I.e. if you need to split ELK and JSP, you need to make
IS_ELKHARTLAKE() match *only* ELK, and you need to replace every current
IS_ELKHARTLAKE() check with IS_ELKHARTLAKE() || IS_JASPERLAKE().

We've been here before, and we've thought before that we can get by with
the minimal change. It's just postponing the inevitable and generates
confusion.

BR,
Jani.


> #define IS_TIGERLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_TIGERLAKE)
> #define IS_ROCKETLAKE(dev_priv) IS_PLATFORM(dev_priv, INTEL_ROCKETLAKE)
> #define IS_DG1(dev_priv) IS_PLATFORM(dev_priv, INTEL_DG1)
> diff --git a/drivers/gpu/drm/i915/i915_pci.c b/drivers/gpu/drm/i915/i915_pci.c
> index 366ddfc8df6b..8690b69fcf33 100644
> --- a/drivers/gpu/drm/i915/i915_pci.c
> +++ b/drivers/gpu/drm/i915/i915_pci.c
> @@ -846,6 +846,14 @@ static const struct intel_device_info ehl_info = {
> .ppgtt_size = 36,
> };
>
> +static const struct intel_device_info jsl_info = {
> + GEN11_FEATURES,
> + PLATFORM(INTEL_JASPERLAKE),
> + .require_force_probe = 1,
> + .platform_engine_mask = BIT(RCS0) | BIT(BCS0) | BIT(VCS0) | BIT(VECS0),
> + .ppgtt_size = 36,
> +};
> +
> #define GEN12_FEATURES \
> GEN11_FEATURES, \
> GEN(12), \
> @@ -985,6 +993,7 @@ static const struct pci_device_id pciidlist[] = {
> INTEL_CNL_IDS(&cnl_info),
> INTEL_ICL_11_IDS(&icl_info),
> INTEL_EHL_IDS(&ehl_info),
> + INTEL_JSL_IDS(&jsl_info),
> INTEL_TGL_12_IDS(&tgl_info),
> INTEL_RKL_IDS(&rkl_info),
> {0, 0, 0}
> diff --git a/drivers/gpu/drm/i915/intel_device_info.c b/drivers/gpu/drm/i915/intel_device_info.c
> index adc836f15fde..e67cec8fa2aa 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.c
> +++ b/drivers/gpu/drm/i915/intel_device_info.c
> @@ -62,6 +62,7 @@ static const char * const platform_names[] = {
> PLATFORM_NAME(CANNONLAKE),
> PLATFORM_NAME(ICELAKE),
> PLATFORM_NAME(ELKHARTLAKE),
> + PLATFORM_NAME(JASPERLAKE),
> PLATFORM_NAME(TIGERLAKE),
> PLATFORM_NAME(ROCKETLAKE),
> PLATFORM_NAME(DG1),
> diff --git a/drivers/gpu/drm/i915/intel_device_info.h b/drivers/gpu/drm/i915/intel_device_info.h
> index 6a3d607218aa..d92fa041c700 100644
> --- a/drivers/gpu/drm/i915/intel_device_info.h
> +++ b/drivers/gpu/drm/i915/intel_device_info.h
> @@ -79,6 +79,7 @@ enum intel_platform {
> /* gen11 */
> INTEL_ICELAKE,
> INTEL_ELKHARTLAKE,
> + INTEL_JASPERLAKE,
> /* gen12 */
> INTEL_TIGERLAKE,
> INTEL_ROCKETLAKE,
> diff --git a/include/drm/i915_pciids.h b/include/drm/i915_pciids.h
> index 7eeecb07c9a1..1b5e09cfa11e 100644
> --- a/include/drm/i915_pciids.h
> +++ b/include/drm/i915_pciids.h
> @@ -579,15 +579,18 @@
> INTEL_VGA_DEVICE(0x8A51, info), \
> INTEL_VGA_DEVICE(0x8A5D, info)
>
> -/* EHL/JSL */
> +/* EHL */
> #define INTEL_EHL_IDS(info) \
> INTEL_VGA_DEVICE(0x4500, info), \
> INTEL_VGA_DEVICE(0x4571, info), \
> INTEL_VGA_DEVICE(0x4551, info), \
> INTEL_VGA_DEVICE(0x4541, info), \
> - INTEL_VGA_DEVICE(0x4E71, info), \
> INTEL_VGA_DEVICE(0x4557, info), \
> - INTEL_VGA_DEVICE(0x4555, info), \
> + INTEL_VGA_DEVICE(0x4555, info)
> +
> +/* JSL */
> +#define INTEL_JSL_IDS(info) \
> + INTEL_VGA_DEVICE(0x4E71, info), \
> INTEL_VGA_DEVICE(0x4E61, info), \
> INTEL_VGA_DEVICE(0x4E57, info), \
> INTEL_VGA_DEVICE(0x4E55, info), \

--
Jani Nikula, Intel Open Source Graphics Center

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